| /* DO NOT EDIT! |
| ** This file is automatically generated by the script in the canonical |
| ** SQLite source tree at tool/mkshellc.tcl. That script combines source |
| ** code from various constituent source files of SQLite into this single |
| ** "shell.c" file used to implement the SQLite command-line shell. |
| ** |
| ** Most of the code found below comes from the "src/shell.c.in" file in |
| ** the canonical SQLite source tree. That main file contains "INCLUDE" |
| ** lines that specify other files in the canonical source tree that are |
| ** inserted to getnerate this complete program source file. |
| ** |
| ** The code from multiple files is combined into this single "shell.c" |
| ** source file to help make the command-line program easier to compile. |
| ** |
| ** To modify this program, get a copy of the canonical SQLite source tree, |
| ** edit the src/shell.c.in" and/or some of the other files that are included |
| ** by "src/shell.c.in", then rerun the tool/mkshellc.tcl script. |
| */ |
| /* |
| ** 2001 September 15 |
| ** |
| ** The author disclaims copyright to this source code. In place of |
| ** a legal notice, here is a blessing: |
| ** |
| ** May you do good and not evil. |
| ** May you find forgiveness for yourself and forgive others. |
| ** May you share freely, never taking more than you give. |
| ** |
| ************************************************************************* |
| ** This file contains code to implement the "sqlite" command line |
| ** utility for accessing SQLite databases. |
| */ |
| #if (defined(_WIN32) || defined(WIN32)) && !defined(_CRT_SECURE_NO_WARNINGS) |
| /* This needs to come before any includes for MSVC compiler */ |
| #define _CRT_SECURE_NO_WARNINGS |
| #endif |
| |
| /* |
| ** Warning pragmas copied from msvc.h in the core. |
| */ |
| #if defined(_MSC_VER) |
| #pragma warning(disable : 4054) |
| #pragma warning(disable : 4055) |
| #pragma warning(disable : 4100) |
| #pragma warning(disable : 4127) |
| #pragma warning(disable : 4130) |
| #pragma warning(disable : 4152) |
| #pragma warning(disable : 4189) |
| #pragma warning(disable : 4206) |
| #pragma warning(disable : 4210) |
| #pragma warning(disable : 4232) |
| #pragma warning(disable : 4244) |
| #pragma warning(disable : 4305) |
| #pragma warning(disable : 4306) |
| #pragma warning(disable : 4702) |
| #pragma warning(disable : 4706) |
| #endif /* defined(_MSC_VER) */ |
| |
| /* |
| ** No support for loadable extensions in VxWorks. |
| */ |
| #if (defined(__RTP__) || defined(_WRS_KERNEL)) && !SQLITE_OMIT_LOAD_EXTENSION |
| # define SQLITE_OMIT_LOAD_EXTENSION 1 |
| #endif |
| |
| /* |
| ** Enable large-file support for fopen() and friends on unix. |
| */ |
| #ifndef SQLITE_DISABLE_LFS |
| # define _LARGE_FILE 1 |
| # ifndef _FILE_OFFSET_BITS |
| # define _FILE_OFFSET_BITS 64 |
| # endif |
| # define _LARGEFILE_SOURCE 1 |
| #endif |
| |
| #include <stdlib.h> |
| #include <string.h> |
| #include <stdio.h> |
| #include <assert.h> |
| #include "sqlite3.h" |
| typedef sqlite3_int64 i64; |
| typedef sqlite3_uint64 u64; |
| typedef unsigned char u8; |
| #if SQLITE_USER_AUTHENTICATION |
| # include "sqlite3userauth.h" |
| #endif |
| #include <ctype.h> |
| #include <stdarg.h> |
| // Begin Android Add |
| #ifndef NO_ANDROID_FUNCS |
| #include <aicu/AIcu.h> |
| #include <sqlite3_android.h> |
| #endif |
| // End Android Add |
| |
| #if !defined(_WIN32) && !defined(WIN32) |
| # include <signal.h> |
| # if !defined(__RTP__) && !defined(_WRS_KERNEL) |
| # include <pwd.h> |
| # endif |
| #endif |
| #if (!defined(_WIN32) && !defined(WIN32)) || defined(__MINGW32__) |
| # include <unistd.h> |
| # include <dirent.h> |
| # define GETPID getpid |
| # if defined(__MINGW32__) |
| # define DIRENT dirent |
| # ifndef S_ISLNK |
| # define S_ISLNK(mode) (0) |
| # endif |
| # endif |
| #else |
| # define GETPID (int)GetCurrentProcessId |
| #endif |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| |
| #if HAVE_READLINE |
| # include <readline/readline.h> |
| # include <readline/history.h> |
| #endif |
| |
| #if HAVE_EDITLINE |
| # include <editline/readline.h> |
| #endif |
| |
| #if HAVE_EDITLINE || HAVE_READLINE |
| |
| # define shell_add_history(X) add_history(X) |
| # define shell_read_history(X) read_history(X) |
| # define shell_write_history(X) write_history(X) |
| # define shell_stifle_history(X) stifle_history(X) |
| # define shell_readline(X) readline(X) |
| |
| #elif HAVE_LINENOISE |
| |
| # include "linenoise.h" |
| # define shell_add_history(X) linenoiseHistoryAdd(X) |
| # define shell_read_history(X) linenoiseHistoryLoad(X) |
| # define shell_write_history(X) linenoiseHistorySave(X) |
| # define shell_stifle_history(X) linenoiseHistorySetMaxLen(X) |
| # define shell_readline(X) linenoise(X) |
| |
| #else |
| |
| # define shell_read_history(X) |
| # define shell_write_history(X) |
| # define shell_stifle_history(X) |
| |
| # define SHELL_USE_LOCAL_GETLINE 1 |
| #endif |
| |
| |
| #if defined(_WIN32) || defined(WIN32) |
| # include <io.h> |
| # include <fcntl.h> |
| # define isatty(h) _isatty(h) |
| # ifndef access |
| # define access(f,m) _access((f),(m)) |
| # endif |
| # ifndef unlink |
| # define unlink _unlink |
| # endif |
| # ifndef strdup |
| # define strdup _strdup |
| # endif |
| # undef popen |
| # define popen _popen |
| # undef pclose |
| # define pclose _pclose |
| #else |
| /* Make sure isatty() has a prototype. */ |
| extern int isatty(int); |
| |
| # if !defined(__RTP__) && !defined(_WRS_KERNEL) |
| /* popen and pclose are not C89 functions and so are |
| ** sometimes omitted from the <stdio.h> header */ |
| extern FILE *popen(const char*,const char*); |
| extern int pclose(FILE*); |
| # else |
| # define SQLITE_OMIT_POPEN 1 |
| # endif |
| #endif |
| |
| #if defined(_WIN32_WCE) |
| /* Windows CE (arm-wince-mingw32ce-gcc) does not provide isatty() |
| * thus we always assume that we have a console. That can be |
| * overridden with the -batch command line option. |
| */ |
| #define isatty(x) 1 |
| #endif |
| |
| /* ctype macros that work with signed characters */ |
| #define IsSpace(X) isspace((unsigned char)X) |
| #define IsDigit(X) isdigit((unsigned char)X) |
| #define ToLower(X) (char)tolower((unsigned char)X) |
| |
| #if defined(_WIN32) || defined(WIN32) |
| #include <windows.h> |
| |
| /* string conversion routines only needed on Win32 */ |
| extern char *sqlite3_win32_unicode_to_utf8(LPCWSTR); |
| extern char *sqlite3_win32_mbcs_to_utf8_v2(const char *, int); |
| extern char *sqlite3_win32_utf8_to_mbcs_v2(const char *, int); |
| extern LPWSTR sqlite3_win32_utf8_to_unicode(const char *zText); |
| #endif |
| |
| /* On Windows, we normally run with output mode of TEXT so that \n characters |
| ** are automatically translated into \r\n. However, this behavior needs |
| ** to be disabled in some cases (ex: when generating CSV output and when |
| ** rendering quoted strings that contain \n characters). The following |
| ** routines take care of that. |
| */ |
| #if defined(_WIN32) || defined(WIN32) |
| static void setBinaryMode(FILE *file, int isOutput){ |
| if( isOutput ) fflush(file); |
| _setmode(_fileno(file), _O_BINARY); |
| } |
| static void setTextMode(FILE *file, int isOutput){ |
| if( isOutput ) fflush(file); |
| _setmode(_fileno(file), _O_TEXT); |
| } |
| #else |
| # define setBinaryMode(X,Y) |
| # define setTextMode(X,Y) |
| #endif |
| |
| |
| /* True if the timer is enabled */ |
| static int enableTimer = 0; |
| |
| /* Return the current wall-clock time */ |
| static sqlite3_int64 timeOfDay(void){ |
| static sqlite3_vfs *clockVfs = 0; |
| sqlite3_int64 t; |
| if( clockVfs==0 ) clockVfs = sqlite3_vfs_find(0); |
| if( clockVfs->iVersion>=2 && clockVfs->xCurrentTimeInt64!=0 ){ |
| clockVfs->xCurrentTimeInt64(clockVfs, &t); |
| }else{ |
| double r; |
| clockVfs->xCurrentTime(clockVfs, &r); |
| t = (sqlite3_int64)(r*86400000.0); |
| } |
| return t; |
| } |
| |
| #if !defined(_WIN32) && !defined(WIN32) && !defined(__minux) |
| #include <sys/time.h> |
| #include <sys/resource.h> |
| |
| /* VxWorks does not support getrusage() as far as we can determine */ |
| #if defined(_WRS_KERNEL) || defined(__RTP__) |
| struct rusage { |
| struct timeval ru_utime; /* user CPU time used */ |
| struct timeval ru_stime; /* system CPU time used */ |
| }; |
| #define getrusage(A,B) memset(B,0,sizeof(*B)) |
| #endif |
| |
| /* Saved resource information for the beginning of an operation */ |
| static struct rusage sBegin; /* CPU time at start */ |
| static sqlite3_int64 iBegin; /* Wall-clock time at start */ |
| |
| /* |
| ** Begin timing an operation |
| */ |
| static void beginTimer(void){ |
| if( enableTimer ){ |
| getrusage(RUSAGE_SELF, &sBegin); |
| iBegin = timeOfDay(); |
| } |
| } |
| |
| /* Return the difference of two time_structs in seconds */ |
| static double timeDiff(struct timeval *pStart, struct timeval *pEnd){ |
| return (pEnd->tv_usec - pStart->tv_usec)*0.000001 + |
| (double)(pEnd->tv_sec - pStart->tv_sec); |
| } |
| |
| /* |
| ** Print the timing results. |
| */ |
| static void endTimer(void){ |
| if( enableTimer ){ |
| sqlite3_int64 iEnd = timeOfDay(); |
| struct rusage sEnd; |
| getrusage(RUSAGE_SELF, &sEnd); |
| printf("Run Time: real %.3f user %f sys %f\n", |
| (iEnd - iBegin)*0.001, |
| timeDiff(&sBegin.ru_utime, &sEnd.ru_utime), |
| timeDiff(&sBegin.ru_stime, &sEnd.ru_stime)); |
| } |
| } |
| |
| #define BEGIN_TIMER beginTimer() |
| #define END_TIMER endTimer() |
| #define HAS_TIMER 1 |
| |
| #elif (defined(_WIN32) || defined(WIN32)) |
| |
| /* Saved resource information for the beginning of an operation */ |
| static HANDLE hProcess; |
| static FILETIME ftKernelBegin; |
| static FILETIME ftUserBegin; |
| static sqlite3_int64 ftWallBegin; |
| typedef BOOL (WINAPI *GETPROCTIMES)(HANDLE, LPFILETIME, LPFILETIME, |
| LPFILETIME, LPFILETIME); |
| static GETPROCTIMES getProcessTimesAddr = NULL; |
| |
| /* |
| ** Check to see if we have timer support. Return 1 if necessary |
| ** support found (or found previously). |
| */ |
| static int hasTimer(void){ |
| if( getProcessTimesAddr ){ |
| return 1; |
| } else { |
| /* GetProcessTimes() isn't supported in WIN95 and some other Windows |
| ** versions. See if the version we are running on has it, and if it |
| ** does, save off a pointer to it and the current process handle. |
| */ |
| hProcess = GetCurrentProcess(); |
| if( hProcess ){ |
| HINSTANCE hinstLib = LoadLibrary(TEXT("Kernel32.dll")); |
| if( NULL != hinstLib ){ |
| getProcessTimesAddr = |
| (GETPROCTIMES) GetProcAddress(hinstLib, "GetProcessTimes"); |
| if( NULL != getProcessTimesAddr ){ |
| return 1; |
| } |
| FreeLibrary(hinstLib); |
| } |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| ** Begin timing an operation |
| */ |
| static void beginTimer(void){ |
| if( enableTimer && getProcessTimesAddr ){ |
| FILETIME ftCreation, ftExit; |
| getProcessTimesAddr(hProcess,&ftCreation,&ftExit, |
| &ftKernelBegin,&ftUserBegin); |
| ftWallBegin = timeOfDay(); |
| } |
| } |
| |
| /* Return the difference of two FILETIME structs in seconds */ |
| static double timeDiff(FILETIME *pStart, FILETIME *pEnd){ |
| sqlite_int64 i64Start = *((sqlite_int64 *) pStart); |
| sqlite_int64 i64End = *((sqlite_int64 *) pEnd); |
| return (double) ((i64End - i64Start) / 10000000.0); |
| } |
| |
| /* |
| ** Print the timing results. |
| */ |
| static void endTimer(void){ |
| if( enableTimer && getProcessTimesAddr){ |
| FILETIME ftCreation, ftExit, ftKernelEnd, ftUserEnd; |
| sqlite3_int64 ftWallEnd = timeOfDay(); |
| getProcessTimesAddr(hProcess,&ftCreation,&ftExit,&ftKernelEnd,&ftUserEnd); |
| printf("Run Time: real %.3f user %f sys %f\n", |
| (ftWallEnd - ftWallBegin)*0.001, |
| timeDiff(&ftUserBegin, &ftUserEnd), |
| timeDiff(&ftKernelBegin, &ftKernelEnd)); |
| } |
| } |
| |
| #define BEGIN_TIMER beginTimer() |
| #define END_TIMER endTimer() |
| #define HAS_TIMER hasTimer() |
| |
| #else |
| #define BEGIN_TIMER |
| #define END_TIMER |
| #define HAS_TIMER 0 |
| #endif |
| |
| /* |
| ** Used to prevent warnings about unused parameters |
| */ |
| #define UNUSED_PARAMETER(x) (void)(x) |
| |
| /* |
| ** Number of elements in an array |
| */ |
| #define ArraySize(X) (int)(sizeof(X)/sizeof(X[0])) |
| |
| /* |
| ** If the following flag is set, then command execution stops |
| ** at an error if we are not interactive. |
| */ |
| static int bail_on_error = 0; |
| |
| /* |
| ** Threat stdin as an interactive input if the following variable |
| ** is true. Otherwise, assume stdin is connected to a file or pipe. |
| */ |
| static int stdin_is_interactive = 1; |
| |
| /* |
| ** On Windows systems we have to know if standard output is a console |
| ** in order to translate UTF-8 into MBCS. The following variable is |
| ** true if translation is required. |
| */ |
| static int stdout_is_console = 1; |
| |
| /* |
| ** The following is the open SQLite database. We make a pointer |
| ** to this database a static variable so that it can be accessed |
| ** by the SIGINT handler to interrupt database processing. |
| */ |
| static sqlite3 *globalDb = 0; |
| |
| /* |
| ** True if an interrupt (Control-C) has been received. |
| */ |
| static volatile int seenInterrupt = 0; |
| |
| /* |
| ** This is the name of our program. It is set in main(), used |
| ** in a number of other places, mostly for error messages. |
| */ |
| static char *Argv0; |
| |
| /* |
| ** Prompt strings. Initialized in main. Settable with |
| ** .prompt main continue |
| */ |
| static char mainPrompt[20]; /* First line prompt. default: "sqlite> "*/ |
| static char continuePrompt[20]; /* Continuation prompt. default: " ...> " */ |
| |
| /* |
| ** Render output like fprintf(). Except, if the output is going to the |
| ** console and if this is running on a Windows machine, translate the |
| ** output from UTF-8 into MBCS. |
| */ |
| #if defined(_WIN32) || defined(WIN32) |
| void utf8_printf(FILE *out, const char *zFormat, ...){ |
| va_list ap; |
| va_start(ap, zFormat); |
| if( stdout_is_console && (out==stdout || out==stderr) ){ |
| char *z1 = sqlite3_vmprintf(zFormat, ap); |
| char *z2 = sqlite3_win32_utf8_to_mbcs_v2(z1, 0); |
| sqlite3_free(z1); |
| fputs(z2, out); |
| sqlite3_free(z2); |
| }else{ |
| vfprintf(out, zFormat, ap); |
| } |
| va_end(ap); |
| } |
| #elif !defined(utf8_printf) |
| # define utf8_printf fprintf |
| #endif |
| |
| /* |
| ** Render output like fprintf(). This should not be used on anything that |
| ** includes string formatting (e.g. "%s"). |
| */ |
| #if !defined(raw_printf) |
| # define raw_printf fprintf |
| #endif |
| |
| /* Indicate out-of-memory and exit. */ |
| static void shell_out_of_memory(void){ |
| raw_printf(stderr,"Error: out of memory\n"); |
| exit(1); |
| } |
| |
| /* |
| ** Write I/O traces to the following stream. |
| */ |
| #ifdef SQLITE_ENABLE_IOTRACE |
| static FILE *iotrace = 0; |
| #endif |
| |
| /* |
| ** This routine works like printf in that its first argument is a |
| ** format string and subsequent arguments are values to be substituted |
| ** in place of % fields. The result of formatting this string |
| ** is written to iotrace. |
| */ |
| #ifdef SQLITE_ENABLE_IOTRACE |
| static void SQLITE_CDECL iotracePrintf(const char *zFormat, ...){ |
| va_list ap; |
| char *z; |
| if( iotrace==0 ) return; |
| va_start(ap, zFormat); |
| z = sqlite3_vmprintf(zFormat, ap); |
| va_end(ap); |
| utf8_printf(iotrace, "%s", z); |
| sqlite3_free(z); |
| } |
| #endif |
| |
| /* |
| ** Output string zUtf to stream pOut as w characters. If w is negative, |
| ** then right-justify the text. W is the width in UTF-8 characters, not |
| ** in bytes. This is different from the %*.*s specification in printf |
| ** since with %*.*s the width is measured in bytes, not characters. |
| */ |
| static void utf8_width_print(FILE *pOut, int w, const char *zUtf){ |
| int i; |
| int n; |
| int aw = w<0 ? -w : w; |
| char zBuf[1000]; |
| if( aw>(int)sizeof(zBuf)/3 ) aw = (int)sizeof(zBuf)/3; |
| for(i=n=0; zUtf[i]; i++){ |
| if( (zUtf[i]&0xc0)!=0x80 ){ |
| n++; |
| if( n==aw ){ |
| do{ i++; }while( (zUtf[i]&0xc0)==0x80 ); |
| break; |
| } |
| } |
| } |
| if( n>=aw ){ |
| utf8_printf(pOut, "%.*s", i, zUtf); |
| }else if( w<0 ){ |
| utf8_printf(pOut, "%*s%s", aw-n, "", zUtf); |
| }else{ |
| utf8_printf(pOut, "%s%*s", zUtf, aw-n, ""); |
| } |
| } |
| |
| |
| /* |
| ** Determines if a string is a number of not. |
| */ |
| static int isNumber(const char *z, int *realnum){ |
| if( *z=='-' || *z=='+' ) z++; |
| if( !IsDigit(*z) ){ |
| return 0; |
| } |
| z++; |
| if( realnum ) *realnum = 0; |
| while( IsDigit(*z) ){ z++; } |
| if( *z=='.' ){ |
| z++; |
| if( !IsDigit(*z) ) return 0; |
| while( IsDigit(*z) ){ z++; } |
| if( realnum ) *realnum = 1; |
| } |
| if( *z=='e' || *z=='E' ){ |
| z++; |
| if( *z=='+' || *z=='-' ) z++; |
| if( !IsDigit(*z) ) return 0; |
| while( IsDigit(*z) ){ z++; } |
| if( realnum ) *realnum = 1; |
| } |
| return *z==0; |
| } |
| |
| /* |
| ** Compute a string length that is limited to what can be stored in |
| ** lower 30 bits of a 32-bit signed integer. |
| */ |
| static int strlen30(const char *z){ |
| const char *z2 = z; |
| while( *z2 ){ z2++; } |
| return 0x3fffffff & (int)(z2 - z); |
| } |
| |
| /* |
| ** Return the length of a string in characters. Multibyte UTF8 characters |
| ** count as a single character. |
| */ |
| static int strlenChar(const char *z){ |
| int n = 0; |
| while( *z ){ |
| if( (0xc0&*(z++))!=0x80 ) n++; |
| } |
| return n; |
| } |
| |
| /* |
| ** This routine reads a line of text from FILE in, stores |
| ** the text in memory obtained from malloc() and returns a pointer |
| ** to the text. NULL is returned at end of file, or if malloc() |
| ** fails. |
| ** |
| ** If zLine is not NULL then it is a malloced buffer returned from |
| ** a previous call to this routine that may be reused. |
| */ |
| static char *local_getline(char *zLine, FILE *in){ |
| int nLine = zLine==0 ? 0 : 100; |
| int n = 0; |
| |
| while( 1 ){ |
| if( n+100>nLine ){ |
| nLine = nLine*2 + 100; |
| zLine = realloc(zLine, nLine); |
| if( zLine==0 ) shell_out_of_memory(); |
| } |
| if( fgets(&zLine[n], nLine - n, in)==0 ){ |
| if( n==0 ){ |
| free(zLine); |
| return 0; |
| } |
| zLine[n] = 0; |
| break; |
| } |
| while( zLine[n] ) n++; |
| if( n>0 && zLine[n-1]=='\n' ){ |
| n--; |
| if( n>0 && zLine[n-1]=='\r' ) n--; |
| zLine[n] = 0; |
| break; |
| } |
| } |
| #if defined(_WIN32) || defined(WIN32) |
| /* For interactive input on Windows systems, translate the |
| ** multi-byte characterset characters into UTF-8. */ |
| if( stdin_is_interactive && in==stdin ){ |
| char *zTrans = sqlite3_win32_mbcs_to_utf8_v2(zLine, 0); |
| if( zTrans ){ |
| int nTrans = strlen30(zTrans)+1; |
| if( nTrans>nLine ){ |
| zLine = realloc(zLine, nTrans); |
| if( zLine==0 ) shell_out_of_memory(); |
| } |
| memcpy(zLine, zTrans, nTrans); |
| sqlite3_free(zTrans); |
| } |
| } |
| #endif /* defined(_WIN32) || defined(WIN32) */ |
| return zLine; |
| } |
| |
| /* |
| ** Retrieve a single line of input text. |
| ** |
| ** If in==0 then read from standard input and prompt before each line. |
| ** If isContinuation is true, then a continuation prompt is appropriate. |
| ** If isContinuation is zero, then the main prompt should be used. |
| ** |
| ** If zPrior is not NULL then it is a buffer from a prior call to this |
| ** routine that can be reused. |
| ** |
| ** The result is stored in space obtained from malloc() and must either |
| ** be freed by the caller or else passed back into this routine via the |
| ** zPrior argument for reuse. |
| */ |
| static char *one_input_line(FILE *in, char *zPrior, int isContinuation){ |
| char *zPrompt; |
| char *zResult; |
| if( in!=0 ){ |
| zResult = local_getline(zPrior, in); |
| }else{ |
| zPrompt = isContinuation ? continuePrompt : mainPrompt; |
| #if SHELL_USE_LOCAL_GETLINE |
| printf("%s", zPrompt); |
| fflush(stdout); |
| zResult = local_getline(zPrior, stdin); |
| #else |
| free(zPrior); |
| zResult = shell_readline(zPrompt); |
| if( zResult && *zResult ) shell_add_history(zResult); |
| #endif |
| } |
| return zResult; |
| } |
| |
| |
| /* |
| ** Return the value of a hexadecimal digit. Return -1 if the input |
| ** is not a hex digit. |
| */ |
| static int hexDigitValue(char c){ |
| if( c>='0' && c<='9' ) return c - '0'; |
| if( c>='a' && c<='f' ) return c - 'a' + 10; |
| if( c>='A' && c<='F' ) return c - 'A' + 10; |
| return -1; |
| } |
| |
| /* |
| ** Interpret zArg as an integer value, possibly with suffixes. |
| */ |
| static sqlite3_int64 integerValue(const char *zArg){ |
| sqlite3_int64 v = 0; |
| static const struct { char *zSuffix; int iMult; } aMult[] = { |
| { "KiB", 1024 }, |
| { "MiB", 1024*1024 }, |
| { "GiB", 1024*1024*1024 }, |
| { "KB", 1000 }, |
| { "MB", 1000000 }, |
| { "GB", 1000000000 }, |
| { "K", 1000 }, |
| { "M", 1000000 }, |
| { "G", 1000000000 }, |
| }; |
| int i; |
| int isNeg = 0; |
| if( zArg[0]=='-' ){ |
| isNeg = 1; |
| zArg++; |
| }else if( zArg[0]=='+' ){ |
| zArg++; |
| } |
| if( zArg[0]=='0' && zArg[1]=='x' ){ |
| int x; |
| zArg += 2; |
| while( (x = hexDigitValue(zArg[0]))>=0 ){ |
| v = (v<<4) + x; |
| zArg++; |
| } |
| }else{ |
| while( IsDigit(zArg[0]) ){ |
| v = v*10 + zArg[0] - '0'; |
| zArg++; |
| } |
| } |
| for(i=0; i<ArraySize(aMult); i++){ |
| if( sqlite3_stricmp(aMult[i].zSuffix, zArg)==0 ){ |
| v *= aMult[i].iMult; |
| break; |
| } |
| } |
| return isNeg? -v : v; |
| } |
| |
| /* |
| ** A variable length string to which one can append text. |
| */ |
| typedef struct ShellText ShellText; |
| struct ShellText { |
| char *z; |
| int n; |
| int nAlloc; |
| }; |
| |
| /* |
| ** Initialize and destroy a ShellText object |
| */ |
| static void initText(ShellText *p){ |
| memset(p, 0, sizeof(*p)); |
| } |
| static void freeText(ShellText *p){ |
| free(p->z); |
| initText(p); |
| } |
| |
| /* zIn is either a pointer to a NULL-terminated string in memory obtained |
| ** from malloc(), or a NULL pointer. The string pointed to by zAppend is |
| ** added to zIn, and the result returned in memory obtained from malloc(). |
| ** zIn, if it was not NULL, is freed. |
| ** |
| ** If the third argument, quote, is not '\0', then it is used as a |
| ** quote character for zAppend. |
| */ |
| static void appendText(ShellText *p, char const *zAppend, char quote){ |
| int len; |
| int i; |
| int nAppend = strlen30(zAppend); |
| |
| len = nAppend+p->n+1; |
| if( quote ){ |
| len += 2; |
| for(i=0; i<nAppend; i++){ |
| if( zAppend[i]==quote ) len++; |
| } |
| } |
| |
| if( p->n+len>=p->nAlloc ){ |
| p->nAlloc = p->nAlloc*2 + len + 20; |
| p->z = realloc(p->z, p->nAlloc); |
| if( p->z==0 ) shell_out_of_memory(); |
| } |
| |
| if( quote ){ |
| char *zCsr = p->z+p->n; |
| *zCsr++ = quote; |
| for(i=0; i<nAppend; i++){ |
| *zCsr++ = zAppend[i]; |
| if( zAppend[i]==quote ) *zCsr++ = quote; |
| } |
| *zCsr++ = quote; |
| p->n = (int)(zCsr - p->z); |
| *zCsr = '\0'; |
| }else{ |
| memcpy(p->z+p->n, zAppend, nAppend); |
| p->n += nAppend; |
| p->z[p->n] = '\0'; |
| } |
| } |
| |
| /* |
| ** Attempt to determine if identifier zName needs to be quoted, either |
| ** because it contains non-alphanumeric characters, or because it is an |
| ** SQLite keyword. Be conservative in this estimate: When in doubt assume |
| ** that quoting is required. |
| ** |
| ** Return '"' if quoting is required. Return 0 if no quoting is required. |
| */ |
| static char quoteChar(const char *zName){ |
| int i; |
| if( !isalpha((unsigned char)zName[0]) && zName[0]!='_' ) return '"'; |
| for(i=0; zName[i]; i++){ |
| if( !isalnum((unsigned char)zName[i]) && zName[i]!='_' ) return '"'; |
| } |
| return sqlite3_keyword_check(zName, i) ? '"' : 0; |
| } |
| |
| /* |
| ** Construct a fake object name and column list to describe the structure |
| ** of the view, virtual table, or table valued function zSchema.zName. |
| */ |
| static char *shellFakeSchema( |
| sqlite3 *db, /* The database connection containing the vtab */ |
| const char *zSchema, /* Schema of the database holding the vtab */ |
| const char *zName /* The name of the virtual table */ |
| ){ |
| sqlite3_stmt *pStmt = 0; |
| char *zSql; |
| ShellText s; |
| char cQuote; |
| char *zDiv = "("; |
| int nRow = 0; |
| |
| zSql = sqlite3_mprintf("PRAGMA \"%w\".table_info=%Q;", |
| zSchema ? zSchema : "main", zName); |
| sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0); |
| sqlite3_free(zSql); |
| initText(&s); |
| if( zSchema ){ |
| cQuote = quoteChar(zSchema); |
| if( cQuote && sqlite3_stricmp(zSchema,"temp")==0 ) cQuote = 0; |
| appendText(&s, zSchema, cQuote); |
| appendText(&s, ".", 0); |
| } |
| cQuote = quoteChar(zName); |
| appendText(&s, zName, cQuote); |
| while( sqlite3_step(pStmt)==SQLITE_ROW ){ |
| const char *zCol = (const char*)sqlite3_column_text(pStmt, 1); |
| nRow++; |
| appendText(&s, zDiv, 0); |
| zDiv = ","; |
| cQuote = quoteChar(zCol); |
| appendText(&s, zCol, cQuote); |
| } |
| appendText(&s, ")", 0); |
| sqlite3_finalize(pStmt); |
| if( nRow==0 ){ |
| freeText(&s); |
| s.z = 0; |
| } |
| return s.z; |
| } |
| |
| /* |
| ** SQL function: shell_module_schema(X) |
| ** |
| ** Return a fake schema for the table-valued function or eponymous virtual |
| ** table X. |
| */ |
| static void shellModuleSchema( |
| sqlite3_context *pCtx, |
| int nVal, |
| sqlite3_value **apVal |
| ){ |
| const char *zName = (const char*)sqlite3_value_text(apVal[0]); |
| char *zFake = shellFakeSchema(sqlite3_context_db_handle(pCtx), 0, zName); |
| UNUSED_PARAMETER(nVal); |
| if( zFake ){ |
| sqlite3_result_text(pCtx, sqlite3_mprintf("/* %s */", zFake), |
| -1, sqlite3_free); |
| free(zFake); |
| } |
| } |
| |
| /* |
| ** SQL function: shell_add_schema(S,X) |
| ** |
| ** Add the schema name X to the CREATE statement in S and return the result. |
| ** Examples: |
| ** |
| ** CREATE TABLE t1(x) -> CREATE TABLE xyz.t1(x); |
| ** |
| ** Also works on |
| ** |
| ** CREATE INDEX |
| ** CREATE UNIQUE INDEX |
| ** CREATE VIEW |
| ** CREATE TRIGGER |
| ** CREATE VIRTUAL TABLE |
| ** |
| ** This UDF is used by the .schema command to insert the schema name of |
| ** attached databases into the middle of the sqlite_master.sql field. |
| */ |
| static void shellAddSchemaName( |
| sqlite3_context *pCtx, |
| int nVal, |
| sqlite3_value **apVal |
| ){ |
| static const char *aPrefix[] = { |
| "TABLE", |
| "INDEX", |
| "UNIQUE INDEX", |
| "VIEW", |
| "TRIGGER", |
| "VIRTUAL TABLE" |
| }; |
| int i = 0; |
| const char *zIn = (const char*)sqlite3_value_text(apVal[0]); |
| const char *zSchema = (const char*)sqlite3_value_text(apVal[1]); |
| const char *zName = (const char*)sqlite3_value_text(apVal[2]); |
| sqlite3 *db = sqlite3_context_db_handle(pCtx); |
| UNUSED_PARAMETER(nVal); |
| if( zIn!=0 && strncmp(zIn, "CREATE ", 7)==0 ){ |
| for(i=0; i<(int)(sizeof(aPrefix)/sizeof(aPrefix[0])); i++){ |
| int n = strlen30(aPrefix[i]); |
| if( strncmp(zIn+7, aPrefix[i], n)==0 && zIn[n+7]==' ' ){ |
| char *z = 0; |
| char *zFake = 0; |
| if( zSchema ){ |
| char cQuote = quoteChar(zSchema); |
| if( cQuote && sqlite3_stricmp(zSchema,"temp")!=0 ){ |
| z = sqlite3_mprintf("%.*s \"%w\".%s", n+7, zIn, zSchema, zIn+n+8); |
| }else{ |
| z = sqlite3_mprintf("%.*s %s.%s", n+7, zIn, zSchema, zIn+n+8); |
| } |
| } |
| if( zName |
| && aPrefix[i][0]=='V' |
| && (zFake = shellFakeSchema(db, zSchema, zName))!=0 |
| ){ |
| if( z==0 ){ |
| z = sqlite3_mprintf("%s\n/* %s */", zIn, zFake); |
| }else{ |
| z = sqlite3_mprintf("%z\n/* %s */", z, zFake); |
| } |
| free(zFake); |
| } |
| if( z ){ |
| sqlite3_result_text(pCtx, z, -1, sqlite3_free); |
| return; |
| } |
| } |
| } |
| } |
| sqlite3_result_value(pCtx, apVal[0]); |
| } |
| |
| /* |
| ** The source code for several run-time loadable extensions is inserted |
| ** below by the ../tool/mkshellc.tcl script. Before processing that included |
| ** code, we need to override some macros to make the included program code |
| ** work here in the middle of this regular program. |
| */ |
| #define SQLITE_EXTENSION_INIT1 |
| #define SQLITE_EXTENSION_INIT2(X) (void)(X) |
| |
| #if defined(_WIN32) && defined(_MSC_VER) |
| /************************* Begin test_windirent.h ******************/ |
| /* |
| ** 2015 November 30 |
| ** |
| ** The author disclaims copyright to this source code. In place of |
| ** a legal notice, here is a blessing: |
| ** |
| ** May you do good and not evil. |
| ** May you find forgiveness for yourself and forgive others. |
| ** May you share freely, never taking more than you give. |
| ** |
| ************************************************************************* |
| ** This file contains declarations for most of the opendir() family of |
| ** POSIX functions on Win32 using the MSVCRT. |
| */ |
| |
| #if defined(_WIN32) && defined(_MSC_VER) && !defined(SQLITE_WINDIRENT_H) |
| #define SQLITE_WINDIRENT_H |
| |
| /* |
| ** We need several data types from the Windows SDK header. |
| */ |
| |
| #ifndef WIN32_LEAN_AND_MEAN |
| #define WIN32_LEAN_AND_MEAN |
| #endif |
| |
| #include "windows.h" |
| |
| /* |
| ** We need several support functions from the SQLite core. |
| */ |
| |
| |
| /* |
| ** We need several things from the ANSI and MSVCRT headers. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include <io.h> |
| #include <limits.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| |
| /* |
| ** We may need several defines that should have been in "sys/stat.h". |
| */ |
| |
| #ifndef S_ISREG |
| #define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG) |
| #endif |
| |
| #ifndef S_ISDIR |
| #define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR) |
| #endif |
| |
| #ifndef S_ISLNK |
| #define S_ISLNK(mode) (0) |
| #endif |
| |
| /* |
| ** We may need to provide the "mode_t" type. |
| */ |
| |
| #ifndef MODE_T_DEFINED |
| #define MODE_T_DEFINED |
| typedef unsigned short mode_t; |
| #endif |
| |
| /* |
| ** We may need to provide the "ino_t" type. |
| */ |
| |
| #ifndef INO_T_DEFINED |
| #define INO_T_DEFINED |
| typedef unsigned short ino_t; |
| #endif |
| |
| /* |
| ** We need to define "NAME_MAX" if it was not present in "limits.h". |
| */ |
| |
| #ifndef NAME_MAX |
| # ifdef FILENAME_MAX |
| # define NAME_MAX (FILENAME_MAX) |
| # else |
| # define NAME_MAX (260) |
| # endif |
| #endif |
| |
| /* |
| ** We need to define "NULL_INTPTR_T" and "BAD_INTPTR_T". |
| */ |
| |
| #ifndef NULL_INTPTR_T |
| # define NULL_INTPTR_T ((intptr_t)(0)) |
| #endif |
| |
| #ifndef BAD_INTPTR_T |
| # define BAD_INTPTR_T ((intptr_t)(-1)) |
| #endif |
| |
| /* |
| ** We need to provide the necessary structures and related types. |
| */ |
| |
| #ifndef DIRENT_DEFINED |
| #define DIRENT_DEFINED |
| typedef struct DIRENT DIRENT; |
| typedef DIRENT *LPDIRENT; |
| struct DIRENT { |
| ino_t d_ino; /* Sequence number, do not use. */ |
| unsigned d_attributes; /* Win32 file attributes. */ |
| char d_name[NAME_MAX + 1]; /* Name within the directory. */ |
| }; |
| #endif |
| |
| #ifndef DIR_DEFINED |
| #define DIR_DEFINED |
| typedef struct DIR DIR; |
| typedef DIR *LPDIR; |
| struct DIR { |
| intptr_t d_handle; /* Value returned by "_findfirst". */ |
| DIRENT d_first; /* DIRENT constructed based on "_findfirst". */ |
| DIRENT d_next; /* DIRENT constructed based on "_findnext". */ |
| }; |
| #endif |
| |
| /* |
| ** Provide a macro, for use by the implementation, to determine if a |
| ** particular directory entry should be skipped over when searching for |
| ** the next directory entry that should be returned by the readdir() or |
| ** readdir_r() functions. |
| */ |
| |
| #ifndef is_filtered |
| # define is_filtered(a) ((((a).attrib)&_A_HIDDEN) || (((a).attrib)&_A_SYSTEM)) |
| #endif |
| |
| /* |
| ** Provide the function prototype for the POSIX compatiable getenv() |
| ** function. This function is not thread-safe. |
| */ |
| |
| extern const char *windirent_getenv(const char *name); |
| |
| /* |
| ** Finally, we can provide the function prototypes for the opendir(), |
| ** readdir(), readdir_r(), and closedir() POSIX functions. |
| */ |
| |
| extern LPDIR opendir(const char *dirname); |
| extern LPDIRENT readdir(LPDIR dirp); |
| extern INT readdir_r(LPDIR dirp, LPDIRENT entry, LPDIRENT *result); |
| extern INT closedir(LPDIR dirp); |
| |
| #endif /* defined(WIN32) && defined(_MSC_VER) */ |
| |
| /************************* End test_windirent.h ********************/ |
| /************************* Begin test_windirent.c ******************/ |
| /* |
| ** 2015 November 30 |
| ** |
| ** The author disclaims copyright to this source code. In place of |
| ** a legal notice, here is a blessing: |
| ** |
| ** May you do good and not evil. |
| ** May you find forgiveness for yourself and forgive others. |
| ** May you share freely, never taking more than you give. |
| ** |
| ************************************************************************* |
| ** This file contains code to implement most of the opendir() family of |
| ** POSIX functions on Win32 using the MSVCRT. |
| */ |
| |
| #if defined(_WIN32) && defined(_MSC_VER) |
| /* #include "test_windirent.h" */ |
| |
| /* |
| ** Implementation of the POSIX getenv() function using the Win32 API. |
| ** This function is not thread-safe. |
| */ |
| const char *windirent_getenv( |
| const char *name |
| ){ |
| static char value[32768]; /* Maximum length, per MSDN */ |
| DWORD dwSize = sizeof(value) / sizeof(char); /* Size in chars */ |
| DWORD dwRet; /* Value returned by GetEnvironmentVariableA() */ |
| |
| memset(value, 0, sizeof(value)); |
| dwRet = GetEnvironmentVariableA(name, value, dwSize); |
| if( dwRet==0 || dwRet>dwSize ){ |
| /* |
| ** The function call to GetEnvironmentVariableA() failed -OR- |
| ** the buffer is not large enough. Either way, return NULL. |
| */ |
| return 0; |
| }else{ |
| /* |
| ** The function call to GetEnvironmentVariableA() succeeded |
| ** -AND- the buffer contains the entire value. |
| */ |
| return value; |
| } |
| } |
| |
| /* |
| ** Implementation of the POSIX opendir() function using the MSVCRT. |
| */ |
| LPDIR opendir( |
| const char *dirname |
| ){ |
| struct _finddata_t data; |
| LPDIR dirp = (LPDIR)sqlite3_malloc(sizeof(DIR)); |
| SIZE_T namesize = sizeof(data.name) / sizeof(data.name[0]); |
| |
| if( dirp==NULL ) return NULL; |
| memset(dirp, 0, sizeof(DIR)); |
| |
| /* TODO: Remove this if Unix-style root paths are not used. */ |
| if( sqlite3_stricmp(dirname, "/")==0 ){ |
| dirname = windirent_getenv("SystemDrive"); |
| } |
| |
| memset(&data, 0, sizeof(struct _finddata_t)); |
| _snprintf(data.name, namesize, "%s\\*", dirname); |
| dirp->d_handle = _findfirst(data.name, &data); |
| |
| if( dirp->d_handle==BAD_INTPTR_T ){ |
| closedir(dirp); |
| return NULL; |
| } |
| |
| /* TODO: Remove this block to allow hidden and/or system files. */ |
| if( is_filtered(data) ){ |
| next: |
| |
| memset(&data, 0, sizeof(struct _finddata_t)); |
| if( _findnext(dirp->d_handle, &data)==-1 ){ |
| closedir(dirp); |
| return NULL; |
| } |
| |
| /* TODO: Remove this block to allow hidden and/or system files. */ |
| if( is_filtered(data) ) goto next; |
| } |
| |
| dirp->d_first.d_attributes = data.attrib; |
| strncpy(dirp->d_first.d_name, data.name, NAME_MAX); |
| dirp->d_first.d_name[NAME_MAX] = '\0'; |
| |
| return dirp; |
| } |
| |
| /* |
| ** Implementation of the POSIX readdir() function using the MSVCRT. |
| */ |
| LPDIRENT readdir( |
| LPDIR dirp |
| ){ |
| struct _finddata_t data; |
| |
| if( dirp==NULL ) return NULL; |
| |
| if( dirp->d_first.d_ino==0 ){ |
| dirp->d_first.d_ino++; |
| dirp->d_next.d_ino++; |
| |
| return &dirp->d_first; |
| } |
| |
| next: |
| |
| memset(&data, 0, sizeof(struct _finddata_t)); |
| if( _findnext(dirp->d_handle, &data)==-1 ) return NULL; |
| |
| /* TODO: Remove this block to allow hidden and/or system files. */ |
| if( is_filtered(data) ) goto next; |
| |
| dirp->d_next.d_ino++; |
| dirp->d_next.d_attributes = data.attrib; |
| strncpy(dirp->d_next.d_name, data.name, NAME_MAX); |
| dirp->d_next.d_name[NAME_MAX] = '\0'; |
| |
| return &dirp->d_next; |
| } |
| |
| /* |
| ** Implementation of the POSIX readdir_r() function using the MSVCRT. |
| */ |
| INT readdir_r( |
| LPDIR dirp, |
| LPDIRENT entry, |
| LPDIRENT *result |
| ){ |
| struct _finddata_t data; |
| |
| if( dirp==NULL ) return EBADF; |
| |
| if( dirp->d_first.d_ino==0 ){ |
| dirp->d_first.d_ino++; |
| dirp->d_next.d_ino++; |
| |
| entry->d_ino = dirp->d_first.d_ino; |
| entry->d_attributes = dirp->d_first.d_attributes; |
| strncpy(entry->d_name, dirp->d_first.d_name, NAME_MAX); |
| entry->d_name[NAME_MAX] = '\0'; |
| |
| *result = entry; |
| return 0; |
| } |
| |
| next: |
| |
| memset(&data, 0, sizeof(struct _finddata_t)); |
| if( _findnext(dirp->d_handle, &data)==-1 ){ |
| *result = NULL; |
| return ENOENT; |
| } |
| |
| /* TODO: Remove this block to allow hidden and/or system files. */ |
| if( is_filtered(data) ) goto next; |
| |
| entry->d_ino = (ino_t)-1; /* not available */ |
| entry->d_attributes = data.attrib; |
| strncpy(entry->d_name, data.name, NAME_MAX); |
| entry->d_name[NAME_MAX] = '\0'; |
| |
| *result = entry; |
| return 0; |
| } |
| |
| /* |
| ** Implementation of the POSIX closedir() function using the MSVCRT. |
| */ |
| INT closedir( |
| LPDIR dirp |
| ){ |
| INT result = 0; |
| |
| if( dirp==NULL ) return EINVAL; |
| |
| if( dirp->d_handle!=NULL_INTPTR_T && dirp->d_handle!=BAD_INTPTR_T ){ |
| result = _findclose(dirp->d_handle); |
| } |
| |
| sqlite3_free(dirp); |
| return result; |
| } |
| |
| #endif /* defined(WIN32) && defined(_MSC_VER) */ |
| |
| /************************* End test_windirent.c ********************/ |
| #define dirent DIRENT |
| #endif |
| /************************* Begin ../ext/misc/shathree.c ******************/ |
| /* |
| ** 2017-03-08 |
| ** |
| ** The author disclaims copyright to this source code. In place of |
| ** a legal notice, here is a blessing: |
| ** |
| ** May you do good and not evil. |
| ** May you find forgiveness for yourself and forgive others. |
| ** May you share freely, never taking more than you give. |
| ** |
| ****************************************************************************** |
| ** |
| ** This SQLite extension implements functions that compute SHA3 hashes. |
| ** Two SQL functions are implemented: |
| ** |
| ** sha3(X,SIZE) |
| ** sha3_query(Y,SIZE) |
| ** |
| ** The sha3(X) function computes the SHA3 hash of the input X, or NULL if |
| ** X is NULL. |
| ** |
| ** The sha3_query(Y) function evalutes all queries in the SQL statements of Y |
| ** and returns a hash of their results. |
| ** |
| ** The SIZE argument is optional. If omitted, the SHA3-256 hash algorithm |
| ** is used. If SIZE is included it must be one of the integers 224, 256, |
| ** 384, or 512, to determine SHA3 hash variant that is computed. |
| */ |
| SQLITE_EXTENSION_INIT1 |
| #include <assert.h> |
| #include <string.h> |
| #include <stdarg.h> |
| /* typedef sqlite3_uint64 u64; */ |
| |
| /****************************************************************************** |
| ** The Hash Engine |
| */ |
| /* |
| ** Macros to determine whether the machine is big or little endian, |
| ** and whether or not that determination is run-time or compile-time. |
| ** |
| ** For best performance, an attempt is made to guess at the byte-order |
| ** using C-preprocessor macros. If that is unsuccessful, or if |
| ** -DSHA3_BYTEORDER=0 is set, then byte-order is determined |
| ** at run-time. |
| */ |
| #ifndef SHA3_BYTEORDER |
| # if defined(i386) || defined(__i386__) || defined(_M_IX86) || \ |
| defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) || \ |
| defined(_M_AMD64) || defined(_M_ARM) || defined(__x86) || \ |
| defined(__arm__) |
| # define SHA3_BYTEORDER 1234 |
| # elif defined(sparc) || defined(__ppc__) |
| # define SHA3_BYTEORDER 4321 |
| # else |
| # define SHA3_BYTEORDER 0 |
| # endif |
| #endif |
| |
| |
| /* |
| ** State structure for a SHA3 hash in progress |
| */ |
| typedef struct SHA3Context SHA3Context; |
| struct SHA3Context { |
| union { |
| u64 s[25]; /* Keccak state. 5x5 lines of 64 bits each */ |
| unsigned char x[1600]; /* ... or 1600 bytes */ |
| } u; |
| unsigned nRate; /* Bytes of input accepted per Keccak iteration */ |
| unsigned nLoaded; /* Input bytes loaded into u.x[] so far this cycle */ |
| unsigned ixMask; /* Insert next input into u.x[nLoaded^ixMask]. */ |
| }; |
| |
| /* |
| ** A single step of the Keccak mixing function for a 1600-bit state |
| */ |
| static void KeccakF1600Step(SHA3Context *p){ |
| int i; |
| u64 b0, b1, b2, b3, b4; |
| u64 c0, c1, c2, c3, c4; |
| u64 d0, d1, d2, d3, d4; |
| static const u64 RC[] = { |
| 0x0000000000000001ULL, 0x0000000000008082ULL, |
| 0x800000000000808aULL, 0x8000000080008000ULL, |
| 0x000000000000808bULL, 0x0000000080000001ULL, |
| 0x8000000080008081ULL, 0x8000000000008009ULL, |
| 0x000000000000008aULL, 0x0000000000000088ULL, |
| 0x0000000080008009ULL, 0x000000008000000aULL, |
| 0x000000008000808bULL, 0x800000000000008bULL, |
| 0x8000000000008089ULL, 0x8000000000008003ULL, |
| 0x8000000000008002ULL, 0x8000000000000080ULL, |
| 0x000000000000800aULL, 0x800000008000000aULL, |
| 0x8000000080008081ULL, 0x8000000000008080ULL, |
| 0x0000000080000001ULL, 0x8000000080008008ULL |
| }; |
| # define a00 (p->u.s[0]) |
| # define a01 (p->u.s[1]) |
| # define a02 (p->u.s[2]) |
| # define a03 (p->u.s[3]) |
| # define a04 (p->u.s[4]) |
| # define a10 (p->u.s[5]) |
| # define a11 (p->u.s[6]) |
| # define a12 (p->u.s[7]) |
| # define a13 (p->u.s[8]) |
| # define a14 (p->u.s[9]) |
| # define a20 (p->u.s[10]) |
| # define a21 (p->u.s[11]) |
| # define a22 (p->u.s[12]) |
| # define a23 (p->u.s[13]) |
| # define a24 (p->u.s[14]) |
| # define a30 (p->u.s[15]) |
| # define a31 (p->u.s[16]) |
| # define a32 (p->u.s[17]) |
| # define a33 (p->u.s[18]) |
| # define a34 (p->u.s[19]) |
| # define a40 (p->u.s[20]) |
| # define a41 (p->u.s[21]) |
| # define a42 (p->u.s[22]) |
| # define a43 (p->u.s[23]) |
| # define a44 (p->u.s[24]) |
| # define ROL64(a,x) ((a<<x)|(a>>(64-x))) |
| |
| for(i=0; i<24; i+=4){ |
| c0 = a00^a10^a20^a30^a40; |
| c1 = a01^a11^a21^a31^a41; |
| c2 = a02^a12^a22^a32^a42; |
| c3 = a03^a13^a23^a33^a43; |
| c4 = a04^a14^a24^a34^a44; |
| d0 = c4^ROL64(c1, 1); |
| d1 = c0^ROL64(c2, 1); |
| d2 = c1^ROL64(c3, 1); |
| d3 = c2^ROL64(c4, 1); |
| d4 = c3^ROL64(c0, 1); |
| |
| b0 = (a00^d0); |
| b1 = ROL64((a11^d1), 44); |
| b2 = ROL64((a22^d2), 43); |
| b3 = ROL64((a33^d3), 21); |
| b4 = ROL64((a44^d4), 14); |
| a00 = b0 ^((~b1)& b2 ); |
| a00 ^= RC[i]; |
| a11 = b1 ^((~b2)& b3 ); |
| a22 = b2 ^((~b3)& b4 ); |
| a33 = b3 ^((~b4)& b0 ); |
| a44 = b4 ^((~b0)& b1 ); |
| |
| b2 = ROL64((a20^d0), 3); |
| b3 = ROL64((a31^d1), 45); |
| b4 = ROL64((a42^d2), 61); |
| b0 = ROL64((a03^d3), 28); |
| b1 = ROL64((a14^d4), 20); |
| a20 = b0 ^((~b1)& b2 ); |
| a31 = b1 ^((~b2)& b3 ); |
| a42 = b2 ^((~b3)& b4 ); |
| a03 = b3 ^((~b4)& b0 ); |
| a14 = b4 ^((~b0)& b1 ); |
| |
| b4 = ROL64((a40^d0), 18); |
| b0 = ROL64((a01^d1), 1); |
| b1 = ROL64((a12^d2), 6); |
| b2 = ROL64((a23^d3), 25); |
| b3 = ROL64((a34^d4), 8); |
| a40 = b0 ^((~b1)& b2 ); |
| a01 = b1 ^((~b2)& b3 ); |
| a12 = b2 ^((~b3)& b4 ); |
| a23 = b3 ^((~b4)& b0 ); |
| a34 = b4 ^((~b0)& b1 ); |
| |
| b1 = ROL64((a10^d0), 36); |
| b2 = ROL64((a21^d1), 10); |
| b3 = ROL64((a32^d2), 15); |
| b4 = ROL64((a43^d3), 56); |
| b0 = ROL64((a04^d4), 27); |
| a10 = b0 ^((~b1)& b2 ); |
| a21 = b1 ^((~b2)& b3 ); |
| a32 = b2 ^((~b3)& b4 ); |
| a43 = b3 ^((~b4)& b0 ); |
| a04 = b4 ^((~b0)& b1 ); |
| |
| b3 = ROL64((a30^d0), 41); |
| b4 = ROL64((a41^d1), 2); |
| b0 = ROL64((a02^d2), 62); |
| b1 = ROL64((a13^d3), 55); |
| b2 = ROL64((a24^d4), 39); |
| a30 = b0 ^((~b1)& b2 ); |
| a41 = b1 ^((~b2)& b3 ); |
| a02 = b2 ^((~b3)& b4 ); |
| a13 = b3 ^((~b4)& b0 ); |
| a24 = b4 ^((~b0)& b1 ); |
| |
| c0 = a00^a20^a40^a10^a30; |
| c1 = a11^a31^a01^a21^a41; |
| c2 = a22^a42^a12^a32^a02; |
| c3 = a33^a03^a23^a43^a13; |
| c4 = a44^a14^a34^a04^a24; |
| d0 = c4^ROL64(c1, 1); |
| d1 = c0^ROL64(c2, 1); |
| d2 = c1^ROL64(c3, 1); |
| d3 = c2^ROL64(c4, 1); |
| d4 = c3^ROL64(c0, 1); |
| |
| b0 = (a00^d0); |
| b1 = ROL64((a31^d1), 44); |
| b2 = ROL64((a12^d2), 43); |
| b3 = ROL64((a43^d3), 21); |
| b4 = ROL64((a24^d4), 14); |
| a00 = b0 ^((~b1)& b2 ); |
| a00 ^= RC[i+1]; |
| a31 = b1 ^((~b2)& b3 ); |
| a12 = b2 ^((~b3)& b4 ); |
| a43 = b3 ^((~b4)& b0 ); |
| a24 = b4 ^((~b0)& b1 ); |
| |
| b2 = ROL64((a40^d0), 3); |
| b3 = ROL64((a21^d1), 45); |
| b4 = ROL64((a02^d2), 61); |
| b0 = ROL64((a33^d3), 28); |
| b1 = ROL64((a14^d4), 20); |
| a40 = b0 ^((~b1)& b2 ); |
| a21 = b1 ^((~b2)& b3 ); |
| a02 = b2 ^((~b3)& b4 ); |
| a33 = b3 ^((~b4)& b0 ); |
| a14 = b4 ^((~b0)& b1 ); |
| |
| b4 = ROL64((a30^d0), 18); |
| b0 = ROL64((a11^d1), 1); |
| b1 = ROL64((a42^d2), 6); |
| b2 = ROL64((a23^d3), 25); |
| b3 = ROL64((a04^d4), 8); |
| a30 = b0 ^((~b1)& b2 ); |
| a11 = b1 ^((~b2)& b3 ); |
| a42 = b2 ^((~b3)& b4 ); |
| a23 = b3 ^((~b4)& b0 ); |
| a04 = b4 ^((~b0)& b1 ); |
| |
| b1 = ROL64((a20^d0), 36); |
| b2 = ROL64((a01^d1), 10); |
| b3 = ROL64((a32^d2), 15); |
| b4 = ROL64((a13^d3), 56); |
| b0 = ROL64((a44^d4), 27); |
| a20 = b0 ^((~b1)& b2 ); |
| a01 = b1 ^((~b2)& b3 ); |
| a32 = b2 ^((~b3)& b4 ); |
| a13 = b3 ^((~b4)& b0 ); |
| a44 = b4 ^((~b0)& b1 ); |
| |
| b3 = ROL64((a10^d0), 41); |
| b4 = ROL64((a41^d1), 2); |
| b0 = ROL64((a22^d2), 62); |
| b1 = ROL64((a03^d3), 55); |
| b2 = ROL64((a34^d4), 39); |
| a10 = b0 ^((~b1)& b2 ); |
| a41 = b1 ^((~b2)& b3 ); |
| a22 = b2 ^((~b3)& b4 ); |
| a03 = b3 ^((~b4)& b0 ); |
| a34 = b4 ^((~b0)& b1 ); |
| |
| c0 = a00^a40^a30^a20^a10; |
| c1 = a31^a21^a11^a01^a41; |
| c2 = a12^a02^a42^a32^a22; |
| c3 = a43^a33^a23^a13^a03; |
| c4 = a24^a14^a04^a44^a34; |
| d0 = c4^ROL64(c1, 1); |
| d1 = c0^ROL64(c2, 1); |
| d2 = c1^ROL64(c3, 1); |
| d3 = c2^ROL64(c4, 1); |
| d4 = c3^ROL64(c0, 1); |
| |
| b0 = (a00^d0); |
| b1 = ROL64((a21^d1), 44); |
| b2 = ROL64((a42^d2), 43); |
| b3 = ROL64((a13^d3), 21); |
| b4 = ROL64((a34^d4), 14); |
| a00 = b0 ^((~b1)& b2 ); |
| a00 ^= RC[i+2]; |
| a21 = b1 ^((~b2)& b3 ); |
| a42 = b2 ^((~b3)& b4 ); |
| a13 = b3 ^((~b4)& b0 ); |
| a34 = b4 ^((~b0)& b1 ); |
| |
| b2 = ROL64((a30^d0), 3); |
| b3 = ROL64((a01^d1), 45); |
| b4 = ROL64((a22^d2), 61); |
| b0 = ROL64((a43^d3), 28); |
| b1 = ROL64((a14^d4), 20); |
| a30 = b0 ^((~b1)& b2 ); |
| a01 = b1 ^((~b2)& b3 ); |
| a22 = b2 ^((~b3)& b4 ); |
| a43 = b3 ^((~b4)& b0 ); |
| a14 = b4 ^((~b0)& b1 ); |
| |
| b4 = ROL64((a10^d0), 18); |
| b0 = ROL64((a31^d1), 1); |
| b1 = ROL64((a02^d2), 6); |
| b2 = ROL64((a23^d3), 25); |
| b3 = ROL64((a44^d4), 8); |
| a10 = b0 ^((~b1)& b2 ); |
| a31 = b1 ^((~b2)& b3 ); |
| a02 = b2 ^((~b3)& b4 ); |
| a23 = b3 ^((~b4)& b0 ); |
| a44 = b4 ^((~b0)& b1 ); |
| |
| b1 = ROL64((a40^d0), 36); |
| b2 = ROL64((a11^d1), 10); |
| b3 = ROL64((a32^d2), 15); |
| b4 = ROL64((a03^d3), 56); |
| b0 = ROL64((a24^d4), 27); |
| a40 = b0 ^((~b1)& b2 ); |
| a11 = b1 ^((~b2)& b3 ); |
| a32 = b2 ^((~b3)& b4 ); |
| a03 = b3 ^((~b4)& b0 ); |
| a24 = b4 ^((~b0)& b1 ); |
| |
| b3 = ROL64((a20^d0), 41); |
| b4 = ROL64((a41^d1), 2); |
| b0 = ROL64((a12^d2), 62); |
| b1 = ROL64((a33^d3), 55); |
| b2 = ROL64((a04^d4), 39); |
| a20 = b0 ^((~b1)& b2 ); |
| a41 = b1 ^((~b2)& b3 ); |
| a12 = b2 ^((~b3)& b4 ); |
| a33 = b3 ^((~b4)& b0 ); |
| a04 = b4 ^((~b0)& b1 ); |
| |
| c0 = a00^a30^a10^a40^a20; |
| c1 = a21^a01^a31^a11^a41; |
| c2 = a42^a22^a02^a32^a12; |
| c3 = a13^a43^a23^a03^a33; |
| c4 = a34^a14^a44^a24^a04; |
| d0 = c4^ROL64(c1, 1); |
| d1 = c0^ROL64(c2, 1); |
| d2 = c1^ROL64(c3, 1); |
| d3 = c2^ROL64(c4, 1); |
| d4 = c3^ROL64(c0, 1); |
| |
| b0 = (a00^d0); |
| b1 = ROL64((a01^d1), 44); |
| b2 = ROL64((a02^d2), 43); |
| b3 = ROL64((a03^d3), 21); |
| b4 = ROL64((a04^d4), 14); |
| a00 = b0 ^((~b1)& b2 ); |
| a00 ^= RC[i+3]; |
| a01 = b1 ^((~b2)& b3 ); |
| a02 = b2 ^((~b3)& b4 ); |
| a03 = b3 ^((~b4)& b0 ); |
| a04 = b4 ^((~b0)& b1 ); |
| |
| b2 = ROL64((a10^d0), 3); |
| b3 = ROL64((a11^d1), 45); |
| b4 = ROL64((a12^d2), 61); |
| b0 = ROL64((a13^d3), 28); |
| b1 = ROL64((a14^d4), 20); |
| a10 = b0 ^((~b1)& b2 ); |
| a11 = b1 ^((~b2)& b3 ); |
| a12 = b2 ^((~b3)& b4 ); |
| a13 = b3 ^((~b4)& b0 ); |
| a14 = b4 ^((~b0)& b1 ); |
| |
| b4 = ROL64((a20^d0), 18); |
| b0 = ROL64((a21^d1), 1); |
| b1 = ROL64((a22^d2), 6); |
| b2 = ROL64((a23^d3), 25); |
| b3 = ROL64((a24^d4), 8); |
| a20 = b0 ^((~b1)& b2 ); |
| a21 = b1 ^((~b2)& b3 ); |
| a22 = b2 ^((~b3)& b4 ); |
| a23 = b3 ^((~b4)& b0 ); |
| a24 = b4 ^((~b0)& b1 ); |
| |
| b1 = ROL64((a30^d0), 36); |
| b2 = ROL64((a31^d1), 10); |
| b3 = ROL64((a32^d2), 15); |
| b4 = ROL64((a33^d3), 56); |
| b0 = ROL64((a34^d4), 27); |
| a30 = b0 ^((~b1)& b2 ); |
| a31 = b1 ^((~b2)& b3 ); |
| a32 = b2 ^((~b3)& b4 ); |
| a33 = b3 ^((~b4)& b0 ); |
| a34 = b4 ^((~b0)& b1 ); |
| |
| b3 = ROL64((a40^d0), 41); |
| b4 = ROL64((a41^d1), 2); |
| b0 = ROL64((a42^d2), 62); |
| b1 = ROL64((a43^d3), 55); |
| b2 = ROL64((a44^d4), 39); |
| a40 = b0 ^((~b1)& b2 ); |
| a41 = b1 ^((~b2)& b3 ); |
| a42 = b2 ^((~b3)& b4 ); |
| a43 = b3 ^((~b4)& b0 ); |
| a44 = b4 ^((~b0)& b1 ); |
| } |
| } |
| |
| /* |
| ** Initialize a new hash. iSize determines the size of the hash |
| ** in bits and should be one of 224, 256, 384, or 512. Or iSize |
| ** can be zero to use the default hash size of 256 bits. |
| */ |
| static void SHA3Init(SHA3Context *p, int iSize){ |
| memset(p, 0, sizeof(*p)); |
| if( iSize>=128 && iSize<=512 ){ |
| p->nRate = (1600 - ((iSize + 31)&~31)*2)/8; |
| }else{ |
| p->nRate = (1600 - 2*256)/8; |
| } |
| #if SHA3_BYTEORDER==1234 |
| /* Known to be little-endian at compile-time. No-op */ |
| #elif SHA3_BYTEORDER==4321 |
| p->ixMask = 7; /* Big-endian */ |
| #else |
| { |
| static unsigned int one = 1; |
| if( 1==*(unsigned char*)&one ){ |
| /* Little endian. No byte swapping. */ |
| p->ixMask = 0; |
| }else{ |
| /* Big endian. Byte swap. */ |
| p->ixMask = 7; |
| } |
| } |
| #endif |
| } |
| |
| /* |
| ** Make consecutive calls to the SHA3Update function to add new content |
| ** to the hash |
| */ |
| static void SHA3Update( |
| SHA3Context *p, |
| const unsigned char *aData, |
| unsigned int nData |
| ){ |
| unsigned int i = 0; |
| #if SHA3_BYTEORDER==1234 |
| if( (p->nLoaded % 8)==0 && ((aData - (const unsigned char*)0)&7)==0 ){ |
| for(; i+7<nData; i+=8){ |
| p->u.s[p->nLoaded/8] ^= *(u64*)&aData[i]; |
| p->nLoaded += 8; |
| if( p->nLoaded>=p->nRate ){ |
| KeccakF1600Step(p); |
| p->nLoaded = 0; |
| } |
| } |
| } |
| #endif |
| for(; i<nData; i++){ |
| #if SHA3_BYTEORDER==1234 |
| p->u.x[p->nLoaded] ^= aData[i]; |
| #elif SHA3_BYTEORDER==4321 |
| p->u.x[p->nLoaded^0x07] ^= aData[i]; |
| #else |
| p->u.x[p->nLoaded^p->ixMask] ^= aData[i]; |
| #endif |
| p->nLoaded++; |
| if( p->nLoaded==p->nRate ){ |
| KeccakF1600Step(p); |
| p->nLoaded = 0; |
| } |
| } |
| } |
| |
| /* |
| ** After all content has been added, invoke SHA3Final() to compute |
| ** the final hash. The function returns a pointer to the binary |
| ** hash value. |
| */ |
| static unsigned char *SHA3Final(SHA3Context *p){ |
| unsigned int i; |
| if( p->nLoaded==p->nRate-1 ){ |
| const unsigned char c1 = 0x86; |
| SHA3Update(p, &c1, 1); |
| }else{ |
| const unsigned char c2 = 0x06; |
| const unsigned char c3 = 0x80; |
| SHA3Update(p, &c2, 1); |
| p->nLoaded = p->nRate - 1; |
| SHA3Update(p, &c3, 1); |
| } |
| for(i=0; i<p->nRate; i++){ |
| p->u.x[i+p->nRate] = p->u.x[i^p->ixMask]; |
| } |
| return &p->u.x[p->nRate]; |
| } |
| /* End of the hashing logic |
| *****************************************************************************/ |
| |
| /* |
| ** Implementation of the sha3(X,SIZE) function. |
| ** |
| ** Return a BLOB which is the SIZE-bit SHA3 hash of X. The default |
| ** size is 256. If X is a BLOB, it is hashed as is. |
| ** For all other non-NULL types of input, X is converted into a UTF-8 string |
| ** and the string is hashed without the trailing 0x00 terminator. The hash |
| ** of a NULL value is NULL. |
| */ |
| static void sha3Func( |
| sqlite3_context *context, |
| int argc, |
| sqlite3_value **argv |
| ){ |
| SHA3Context cx; |
| int eType = sqlite3_value_type(argv[0]); |
| int nByte = sqlite3_value_bytes(argv[0]); |
| int iSize; |
| if( argc==1 ){ |
| iSize = 256; |
| }else{ |
| iSize = sqlite3_value_int(argv[1]); |
| if( iSize!=224 && iSize!=256 && iSize!=384 && iSize!=512 ){ |
| sqlite3_result_error(context, "SHA3 size should be one of: 224 256 " |
| "384 512", -1); |
| return; |
| } |
| } |
| if( eType==SQLITE_NULL ) return; |
| SHA3Init(&cx, iSize); |
| if( eType==SQLITE_BLOB ){ |
| SHA3Update(&cx, sqlite3_value_blob(argv[0]), nByte); |
| }else{ |
| SHA3Update(&cx, sqlite3_value_text(argv[0]), nByte); |
| } |
| sqlite3_result_blob(context, SHA3Final(&cx), iSize/8, SQLITE_TRANSIENT); |
| } |
| |
| /* Compute a string using sqlite3_vsnprintf() with a maximum length |
| ** of 50 bytes and add it to the hash. |
| */ |
| static void hash_step_vformat( |
| SHA3Context *p, /* Add content to this context */ |
| const char *zFormat, |
| ... |
| ){ |
| va_list ap; |
| int n; |
| char zBuf[50]; |
| va_start(ap, zFormat); |
| sqlite3_vsnprintf(sizeof(zBuf),zBuf,zFormat,ap); |
| va_end(ap); |
| n = (int)strlen(zBuf); |
| SHA3Update(p, (unsigned char*)zBuf, n); |
| } |
| |
| /* |
| ** Implementation of the sha3_query(SQL,SIZE) function. |
| ** |
| ** This function compiles and runs the SQL statement(s) given in the |
| ** argument. The results are hashed using a SIZE-bit SHA3. The default |
| ** size is 256. |
| ** |
| ** The format of the byte stream that is hashed is summarized as follows: |
| ** |
| ** S<n>:<sql> |
| ** R |
| ** N |
| ** I<int> |
| ** F<ieee-float> |
| ** B<size>:<bytes> |
| ** T<size>:<text> |
| ** |
| ** <sql> is the original SQL text for each statement run and <n> is |
| ** the size of that text. The SQL text is UTF-8. A single R character |
| ** occurs before the start of each row. N means a NULL value. |
| ** I mean an 8-byte little-endian integer <int>. F is a floating point |
| ** number with an 8-byte little-endian IEEE floating point value <ieee-float>. |
| ** B means blobs of <size> bytes. T means text rendered as <size> |
| ** bytes of UTF-8. The <n> and <size> values are expressed as an ASCII |
| ** text integers. |
| ** |
| ** For each SQL statement in the X input, there is one S segment. Each |
| ** S segment is followed by zero or more R segments, one for each row in the |
| ** result set. After each R, there are one or more N, I, F, B, or T segments, |
| ** one for each column in the result set. Segments are concatentated directly |
| ** with no delimiters of any kind. |
| */ |
| static void sha3QueryFunc( |
| sqlite3_context *context, |
| int argc, |
| sqlite3_value **argv |
| ){ |
| sqlite3 *db = sqlite3_context_db_handle(context); |
| const char *zSql = (const char*)sqlite3_value_text(argv[0]); |
| sqlite3_stmt *pStmt = 0; |
| int nCol; /* Number of columns in the result set */ |
| int i; /* Loop counter */ |
| int rc; |
| int n; |
| const char *z; |
| SHA3Context cx; |
| int iSize; |
| |
| if( argc==1 ){ |
| iSize = 256; |
| }else{ |
| iSize = sqlite3_value_int(argv[1]); |
| if( iSize!=224 && iSize!=256 && iSize!=384 && iSize!=512 ){ |
| sqlite3_result_error(context, "SHA3 size should be one of: 224 256 " |
| "384 512", -1); |
| return; |
| } |
| } |
| if( zSql==0 ) return; |
| SHA3Init(&cx, iSize); |
| while( zSql[0] ){ |
| rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, &zSql); |
| if( rc ){ |
| char *zMsg = sqlite3_mprintf("error SQL statement [%s]: %s", |
| zSql, sqlite3_errmsg(db)); |
| sqlite3_finalize(pStmt); |
| sqlite3_result_error(context, zMsg, -1); |
| sqlite3_free(zMsg); |
| return; |
| } |
| if( !sqlite3_stmt_readonly(pStmt) ){ |
| char *zMsg = sqlite3_mprintf("non-query: [%s]", sqlite3_sql(pStmt)); |
| sqlite3_finalize(pStmt); |
| sqlite3_result_error(context, zMsg, -1); |
| sqlite3_free(zMsg); |
| return; |
| } |
| nCol = sqlite3_column_count(pStmt); |
| z = sqlite3_sql(pStmt); |
| n = (int)strlen(z); |
| hash_step_vformat(&cx,"S%d:",n); |
| SHA3Update(&cx,(unsigned char*)z,n); |
| |
| /* Compute a hash over the result of the query */ |
| while( SQLITE_ROW==sqlite3_step(pStmt) ){ |
| SHA3Update(&cx,(const unsigned char*)"R",1); |
| for(i=0; i<nCol; i++){ |
| switch( sqlite3_column_type(pStmt,i) ){ |
| case SQLITE_NULL: { |
| SHA3Update(&cx, (const unsigned char*)"N",1); |
| break; |
| } |
| case SQLITE_INTEGER: { |
| sqlite3_uint64 u; |
| int j; |
| unsigned char x[9]; |
| sqlite3_int64 v = sqlite3_column_int64(pStmt,i); |
| memcpy(&u, &v, 8); |
| for(j=8; j>=1; j--){ |
| x[j] = u & 0xff; |
| u >>= 8; |
| } |
| x[0] = 'I'; |
| SHA3Update(&cx, x, 9); |
| break; |
| } |
| case SQLITE_FLOAT: { |
| sqlite3_uint64 u; |
| int j; |
| unsigned char x[9]; |
| double r = sqlite3_column_double(pStmt,i); |
| memcpy(&u, &r, 8); |
| for(j=8; j>=1; j--){ |
| x[j] = u & 0xff; |
| u >>= 8; |
| } |
| x[0] = 'F'; |
| SHA3Update(&cx,x,9); |
| break; |
| } |
| case SQLITE_TEXT: { |
| int n2 = sqlite3_column_bytes(pStmt, i); |
| const unsigned char *z2 = sqlite3_column_text(pStmt, i); |
| hash_step_vformat(&cx,"T%d:",n2); |
| SHA3Update(&cx, z2, n2); |
| break; |
| } |
| case SQLITE_BLOB: { |
| int n2 = sqlite3_column_bytes(pStmt, i); |
| const unsigned char *z2 = sqlite3_column_blob(pStmt, i); |
| hash_step_vformat(&cx,"B%d:",n2); |
| SHA3Update(&cx, z2, n2); |
| break; |
| } |
| } |
| } |
| } |
| sqlite3_finalize(pStmt); |
| } |
| sqlite3_result_blob(context, SHA3Final(&cx), iSize/8, SQLITE_TRANSIENT); |
| } |
| |
| |
| #ifdef _WIN32 |
| |
| #endif |
| int sqlite3_shathree_init( |
| sqlite3 *db, |
| char **pzErrMsg, |
| const sqlite3_api_routines *pApi |
| ){ |
| int rc = SQLITE_OK; |
| SQLITE_EXTENSION_INIT2(pApi); |
| (void)pzErrMsg; /* Unused parameter */ |
| rc = sqlite3_create_function(db, "sha3", 1, SQLITE_UTF8, 0, |
| sha3Func, 0, 0); |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_create_function(db, "sha3", 2, SQLITE_UTF8, 0, |
| sha3Func, 0, 0); |
| } |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_create_function(db, "sha3_query", 1, SQLITE_UTF8, 0, |
| sha3QueryFunc, 0, 0); |
| } |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_create_function(db, "sha3_query", 2, SQLITE_UTF8, 0, |
| sha3QueryFunc, 0, 0); |
| } |
| return rc; |
| } |
| |
| /************************* End ../ext/misc/shathree.c ********************/ |
| /************************* Begin ../ext/misc/fileio.c ******************/ |
| /* |
| ** 2014-06-13 |
| ** |
| ** The author disclaims copyright to this source code. In place of |
| ** a legal notice, here is a blessing: |
| ** |
| ** May you do good and not evil. |
| ** May you find forgiveness for yourself and forgive others. |
| ** May you share freely, never taking more than you give. |
| ** |
| ****************************************************************************** |
| ** |
| ** This SQLite extension implements SQL functions readfile() and |
| ** writefile(), and eponymous virtual type "fsdir". |
| ** |
| ** WRITEFILE(FILE, DATA [, MODE [, MTIME]]): |
| ** |
| ** If neither of the optional arguments is present, then this UDF |
| ** function writes blob DATA to file FILE. If successful, the number |
| ** of bytes written is returned. If an error occurs, NULL is returned. |
| ** |
| ** If the first option argument - MODE - is present, then it must |
| ** be passed an integer value that corresponds to a POSIX mode |
| ** value (file type + permissions, as returned in the stat.st_mode |
| ** field by the stat() system call). Three types of files may |
| ** be written/created: |
| ** |
| ** regular files: (mode & 0170000)==0100000 |
| ** symbolic links: (mode & 0170000)==0120000 |
| ** directories: (mode & 0170000)==0040000 |
| ** |
| ** For a directory, the DATA is ignored. For a symbolic link, it is |
| ** interpreted as text and used as the target of the link. For a |
| ** regular file, it is interpreted as a blob and written into the |
| ** named file. Regardless of the type of file, its permissions are |
| ** set to (mode & 0777) before returning. |
| ** |
| ** If the optional MTIME argument is present, then it is interpreted |
| ** as an integer - the number of seconds since the unix epoch. The |
| ** modification-time of the target file is set to this value before |
| ** returning. |
| ** |
| ** If three or more arguments are passed to this function and an |
| ** error is encountered, an exception is raised. |
| ** |
| ** READFILE(FILE): |
| ** |
| ** Read and return the contents of file FILE (type blob) from disk. |
| ** |
| ** FSDIR: |
| ** |
| ** Used as follows: |
| ** |
| ** SELECT * FROM fsdir($path [, $dir]); |
| ** |
| ** Parameter $path is an absolute or relative pathname. If the file that it |
| ** refers to does not exist, it is an error. If the path refers to a regular |
| ** file or symbolic link, it returns a single row. Or, if the path refers |
| ** to a directory, it returns one row for the directory, and one row for each |
| ** file within the hierarchy rooted at $path. |
| ** |
| ** Each row has the following columns: |
| ** |
| ** name: Path to file or directory (text value). |
| ** mode: Value of stat.st_mode for directory entry (an integer). |
| ** mtime: Value of stat.st_mtime for directory entry (an integer). |
| ** data: For a regular file, a blob containing the file data. For a |
| ** symlink, a text value containing the text of the link. For a |
| ** directory, NULL. |
| ** |
| ** If a non-NULL value is specified for the optional $dir parameter and |
| ** $path is a relative path, then $path is interpreted relative to $dir. |
| ** And the paths returned in the "name" column of the table are also |
| ** relative to directory $dir. |
| */ |
| SQLITE_EXTENSION_INIT1 |
| #include <stdio.h> |
| #include <string.h> |
| #include <assert.h> |
| |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #if !defined(_WIN32) && !defined(WIN32) |
| # include <unistd.h> |
| # include <dirent.h> |
| # include <utime.h> |
| # include <sys/time.h> |
| #else |
| # include "windows.h" |
| # include <io.h> |
| # include <direct.h> |
| /* # include "test_windirent.h" */ |
| # define dirent DIRENT |
| # ifndef chmod |
| # define chmod _chmod |
| # endif |
| # ifndef stat |
| # define stat _stat |
| # endif |
| # define mkdir(path,mode) _mkdir(path) |
| # define lstat(path,buf) stat(path,buf) |
| #endif |
| #include <time.h> |
| #include <errno.h> |
| |
| |
| /* |
| ** Structure of the fsdir() table-valued function |
| */ |
| /* 0 1 2 3 4 5 */ |
| #define FSDIR_SCHEMA "(name,mode,mtime,data,path HIDDEN,dir HIDDEN)" |
| #define FSDIR_COLUMN_NAME 0 /* Name of the file */ |
| #define FSDIR_COLUMN_MODE 1 /* Access mode */ |
| #define FSDIR_COLUMN_MTIME 2 /* Last modification time */ |
| #define FSDIR_COLUMN_DATA 3 /* File content */ |
| #define FSDIR_COLUMN_PATH 4 /* Path to top of search */ |
| #define FSDIR_COLUMN_DIR 5 /* Path is relative to this directory */ |
| |
| |
| /* |
| ** Set the result stored by context ctx to a blob containing the |
| ** contents of file zName. Or, leave the result unchanged (NULL) |
| ** if the file does not exist or is unreadable. |
| ** |
| ** If the file exceeds the SQLite blob size limit, through an |
| ** SQLITE_TOOBIG error. |
| ** |
| ** Throw an SQLITE_IOERR if there are difficulties pulling the file |
| ** off of disk. |
| */ |
| static void readFileContents(sqlite3_context *ctx, const char *zName){ |
| FILE *in; |
| sqlite3_int64 nIn; |
| void *pBuf; |
| sqlite3 *db; |
| int mxBlob; |
| |
| in = fopen(zName, "rb"); |
| if( in==0 ){ |
| /* File does not exist or is unreadable. Leave the result set to NULL. */ |
| return; |
| } |
| fseek(in, 0, SEEK_END); |
| nIn = ftell(in); |
| rewind(in); |
| db = sqlite3_context_db_handle(ctx); |
| mxBlob = sqlite3_limit(db, SQLITE_LIMIT_LENGTH, -1); |
| if( nIn>mxBlob ){ |
| sqlite3_result_error_code(ctx, SQLITE_TOOBIG); |
| fclose(in); |
| return; |
| } |
| pBuf = sqlite3_malloc64( nIn ? nIn : 1 ); |
| if( pBuf==0 ){ |
| sqlite3_result_error_nomem(ctx); |
| fclose(in); |
| return; |
| } |
| if( nIn==(sqlite3_int64)fread(pBuf, 1, (size_t)nIn, in) ){ |
| sqlite3_result_blob64(ctx, pBuf, nIn, sqlite3_free); |
| }else{ |
| sqlite3_result_error_code(ctx, SQLITE_IOERR); |
| sqlite3_free(pBuf); |
| } |
| fclose(in); |
| } |
| |
| /* |
| ** Implementation of the "readfile(X)" SQL function. The entire content |
| ** of the file named X is read and returned as a BLOB. NULL is returned |
| ** if the file does not exist or is unreadable. |
| */ |
| static void readfileFunc( |
| sqlite3_context *context, |
| int argc, |
| sqlite3_value **argv |
| ){ |
| const char *zName; |
| (void)(argc); /* Unused parameter */ |
| zName = (const char*)sqlite3_value_text(argv[0]); |
| if( zName==0 ) return; |
| readFileContents(context, zName); |
| } |
| |
| /* |
| ** Set the error message contained in context ctx to the results of |
| ** vprintf(zFmt, ...). |
| */ |
| static void ctxErrorMsg(sqlite3_context *ctx, const char *zFmt, ...){ |
| char *zMsg = 0; |
| va_list ap; |
| va_start(ap, zFmt); |
| zMsg = sqlite3_vmprintf(zFmt, ap); |
| sqlite3_result_error(ctx, zMsg, -1); |
| sqlite3_free(zMsg); |
| va_end(ap); |
| } |
| |
| #if defined(_WIN32) |
| /* |
| ** This function is designed to convert a Win32 FILETIME structure into the |
| ** number of seconds since the Unix Epoch (1970-01-01 00:00:00 UTC). |
| */ |
| static sqlite3_uint64 fileTimeToUnixTime( |
| LPFILETIME pFileTime |
| ){ |
| SYSTEMTIME epochSystemTime; |
| ULARGE_INTEGER epochIntervals; |
| FILETIME epochFileTime; |
| ULARGE_INTEGER fileIntervals; |
| |
| memset(&epochSystemTime, 0, sizeof(SYSTEMTIME)); |
| epochSystemTime.wYear = 1970; |
| epochSystemTime.wMonth = 1; |
| epochSystemTime.wDay = 1; |
| SystemTimeToFileTime(&epochSystemTime, &epochFileTime); |
| epochIntervals.LowPart = epochFileTime.dwLowDateTime; |
| epochIntervals.HighPart = epochFileTime.dwHighDateTime; |
| |
| fileIntervals.LowPart = pFileTime->dwLowDateTime; |
| fileIntervals.HighPart = pFileTime->dwHighDateTime; |
| |
| return (fileIntervals.QuadPart - epochIntervals.QuadPart) / 10000000; |
| } |
| |
| /* |
| ** This function attempts to normalize the time values found in the stat() |
| ** buffer to UTC. This is necessary on Win32, where the runtime library |
| ** appears to return these values as local times. |
| */ |
| static void statTimesToUtc( |
| const char *zPath, |
| struct stat *pStatBuf |
| ){ |
| HANDLE hFindFile; |
| WIN32_FIND_DATAW fd; |
| LPWSTR zUnicodeName; |
| extern LPWSTR sqlite3_win32_utf8_to_unicode(const char*); |
| zUnicodeName = sqlite3_win32_utf8_to_unicode(zPath); |
| if( zUnicodeName ){ |
| memset(&fd, 0, sizeof(WIN32_FIND_DATAW)); |
| hFindFile = FindFirstFileW(zUnicodeName, &fd); |
| if( hFindFile!=NULL ){ |
| pStatBuf->st_ctime = (time_t)fileTimeToUnixTime(&fd.ftCreationTime); |
| pStatBuf->st_atime = (time_t)fileTimeToUnixTime(&fd.ftLastAccessTime); |
| pStatBuf->st_mtime = (time_t)fileTimeToUnixTime(&fd.ftLastWriteTime); |
| FindClose(hFindFile); |
| } |
| sqlite3_free(zUnicodeName); |
| } |
| } |
| #endif |
| |
| /* |
| ** This function is used in place of stat(). On Windows, special handling |
| ** is required in order for the included time to be returned as UTC. On all |
| ** other systems, this function simply calls stat(). |
| */ |
| static int fileStat( |
| const char *zPath, |
| struct stat *pStatBuf |
| ){ |
| #if defined(_WIN32) |
| int rc = stat(zPath, pStatBuf); |
| if( rc==0 ) statTimesToUtc(zPath, pStatBuf); |
| return rc; |
| #else |
| return stat(zPath, pStatBuf); |
| #endif |
| } |
| |
| /* |
| ** This function is used in place of lstat(). On Windows, special handling |
| ** is required in order for the included time to be returned as UTC. On all |
| ** other systems, this function simply calls lstat(). |
| */ |
| static int fileLinkStat( |
| const char *zPath, |
| struct stat *pStatBuf |
| ){ |
| #if defined(_WIN32) |
| int rc = lstat(zPath, pStatBuf); |
| if( rc==0 ) statTimesToUtc(zPath, pStatBuf); |
| return rc; |
| #else |
| return lstat(zPath, pStatBuf); |
| #endif |
| } |
| |
| /* |
| ** Argument zFile is the name of a file that will be created and/or written |
| ** by SQL function writefile(). This function ensures that the directory |
| ** zFile will be written to exists, creating it if required. The permissions |
| ** for any path components created by this function are set in accordance |
| ** with the current umask. |
| ** |
| ** If an OOM condition is encountered, SQLITE_NOMEM is returned. Otherwise, |
| ** SQLITE_OK is returned if the directory is successfully created, or |
| ** SQLITE_ERROR otherwise. |
| */ |
| static int makeDirectory( |
| const char *zFile |
| ){ |
| char *zCopy = sqlite3_mprintf("%s", zFile); |
| int rc = SQLITE_OK; |
| |
| if( zCopy==0 ){ |
| rc = SQLITE_NOMEM; |
| }else{ |
| int nCopy = (int)strlen(zCopy); |
| int i = 1; |
| |
| while( rc==SQLITE_OK ){ |
| struct stat sStat; |
| int rc2; |
| |
| for(; zCopy[i]!='/' && i<nCopy; i++); |
| if( i==nCopy ) break; |
| zCopy[i] = '\0'; |
| |
| rc2 = fileStat(zCopy, &sStat); |
| if( rc2!=0 ){ |
| if( mkdir(zCopy, 0777) ) rc = SQLITE_ERROR; |
| }else{ |
| if( !S_ISDIR(sStat.st_mode) ) rc = SQLITE_ERROR; |
| } |
| zCopy[i] = '/'; |
| i++; |
| } |
| |
| sqlite3_free(zCopy); |
| } |
| |
| return rc; |
| } |
| |
| /* |
| ** This function does the work for the writefile() UDF. Refer to |
| ** header comments at the top of this file for details. |
| */ |
| static int writeFile( |
| sqlite3_context *pCtx, /* Context to return bytes written in */ |
| const char *zFile, /* File to write */ |
| sqlite3_value *pData, /* Data to write */ |
| mode_t mode, /* MODE parameter passed to writefile() */ |
| sqlite3_int64 mtime /* MTIME parameter (or -1 to not set time) */ |
| ){ |
| #if !defined(_WIN32) && !defined(WIN32) |
| if( S_ISLNK(mode) ){ |
| const char *zTo = (const char*)sqlite3_value_text(pData); |
| if( symlink(zTo, zFile)<0 ) return 1; |
| }else |
| #endif |
| { |
| if( S_ISDIR(mode) ){ |
| if( mkdir(zFile, mode) ){ |
| /* The mkdir() call to create the directory failed. This might not |
| ** be an error though - if there is already a directory at the same |
| ** path and either the permissions already match or can be changed |
| ** to do so using chmod(), it is not an error. */ |
| struct stat sStat; |
| if( errno!=EEXIST |
| || 0!=fileStat(zFile, &sStat) |
| || !S_ISDIR(sStat.st_mode) |
| || ((sStat.st_mode&0777)!=(mode&0777) && 0!=chmod(zFile, mode&0777)) |
| ){ |
| return 1; |
| } |
| } |
| }else{ |
| sqlite3_int64 nWrite = 0; |
| const char *z; |
| int rc = 0; |
| FILE *out = fopen(zFile, "wb"); |
| if( out==0 ) return 1; |
| z = (const char*)sqlite3_value_blob(pData); |
| if( z ){ |
| sqlite3_int64 n = fwrite(z, 1, sqlite3_value_bytes(pData), out); |
| nWrite = sqlite3_value_bytes(pData); |
| if( nWrite!=n ){ |
| rc = 1; |
| } |
| } |
| fclose(out); |
| if( rc==0 && mode && chmod(zFile, mode & 0777) ){ |
| rc = 1; |
| } |
| if( rc ) return 2; |
| sqlite3_result_int64(pCtx, nWrite); |
| } |
| } |
| |
| if( mtime>=0 ){ |
| #if defined(_WIN32) |
| /* Windows */ |
| FILETIME lastAccess; |
| FILETIME lastWrite; |
| SYSTEMTIME currentTime; |
| LONGLONG intervals; |
| HANDLE hFile; |
| LPWSTR zUnicodeName; |
| extern LPWSTR sqlite3_win32_utf8_to_unicode(const char*); |
| |
| GetSystemTime(¤tTime); |
| SystemTimeToFileTime(¤tTime, &lastAccess); |
| intervals = Int32x32To64(mtime, 10000000) + 116444736000000000; |
| lastWrite.dwLowDateTime = (DWORD)intervals; |
| lastWrite.dwHighDateTime = intervals >> 32; |
| zUnicodeName = sqlite3_win32_utf8_to_unicode(zFile); |
| if( zUnicodeName==0 ){ |
| return 1; |
| } |
| hFile = CreateFileW( |
| zUnicodeName, FILE_WRITE_ATTRIBUTES, 0, NULL, OPEN_EXISTING, |
| FILE_FLAG_BACKUP_SEMANTICS, NULL |
| ); |
| sqlite3_free(zUnicodeName); |
| if( hFile!=INVALID_HANDLE_VALUE ){ |
| BOOL bResult = SetFileTime(hFile, NULL, &lastAccess, &lastWrite); |
| CloseHandle(hFile); |
| return !bResult; |
| }else{ |
| return 1; |
| } |
| #elif defined(AT_FDCWD) && 0 /* utimensat() is not universally available */ |
| /* Recent unix */ |
| struct timespec times[2]; |
| times[0].tv_nsec = times[1].tv_nsec = 0; |
| times[0].tv_sec = time(0); |
| times[1].tv_sec = mtime; |
| if( utimensat(AT_FDCWD, zFile, times, AT_SYMLINK_NOFOLLOW) ){ |
| return 1; |
| } |
| #else |
| /* Legacy unix */ |
| struct timeval times[2]; |
| times[0].tv_usec = times[1].tv_usec = 0; |
| times[0].tv_sec = time(0); |
| times[1].tv_sec = mtime; |
| if( utimes(zFile, times) ){ |
| return 1; |
| } |
| #endif |
| } |
| |
| return 0; |
| } |
| |
| /* |
| ** Implementation of the "writefile(W,X[,Y[,Z]]])" SQL function. |
| ** Refer to header comments at the top of this file for details. |
| */ |
| static void writefileFunc( |
| sqlite3_context *context, |
| int argc, |
| sqlite3_value **argv |
| ){ |
| const char *zFile; |
| mode_t mode = 0; |
| int res; |
| sqlite3_int64 mtime = -1; |
| |
| if( argc<2 || argc>4 ){ |
| sqlite3_result_error(context, |
| "wrong number of arguments to function writefile()", -1 |
| ); |
| return; |
| } |
| |
| zFile = (const char*)sqlite3_value_text(argv[0]); |
| if( zFile==0 ) return; |
| if( argc>=3 ){ |
| mode = (mode_t)sqlite3_value_int(argv[2]); |
| } |
| if( argc==4 ){ |
| mtime = sqlite3_value_int64(argv[3]); |
| } |
| |
| res = writeFile(context, zFile, argv[1], mode, mtime); |
| if( res==1 && errno==ENOENT ){ |
| if( makeDirectory(zFile)==SQLITE_OK ){ |
| res = writeFile(context, zFile, argv[1], mode, mtime); |
| } |
| } |
| |
| if( argc>2 && res!=0 ){ |
| if( S_ISLNK(mode) ){ |
| ctxErrorMsg(context, "failed to create symlink: %s", zFile); |
| }else if( S_ISDIR(mode) ){ |
| ctxErrorMsg(context, "failed to create directory: %s", zFile); |
| }else{ |
| ctxErrorMsg(context, "failed to write file: %s", zFile); |
| } |
| } |
| } |
| |
| /* |
| ** SQL function: lsmode(MODE) |
| ** |
| ** Given a numberic st_mode from stat(), convert it into a human-readable |
| ** text string in the style of "ls -l". |
| */ |
| static void lsModeFunc( |
| sqlite3_context *context, |
| int argc, |
| sqlite3_value **argv |
| ){ |
| int i; |
| int iMode = sqlite3_value_int(argv[0]); |
| char z[16]; |
| (void)argc; |
| if( S_ISLNK(iMode) ){ |
| z[0] = 'l'; |
| }else if( S_ISREG(iMode) ){ |
| z[0] = '-'; |
| }else if( S_ISDIR(iMode) ){ |
| z[0] = 'd'; |
| }else{ |
| z[0] = '?'; |
| } |
| for(i=0; i<3; i++){ |
| int m = (iMode >> ((2-i)*3)); |
| char *a = &z[1 + i*3]; |
| a[0] = (m & 0x4) ? 'r' : '-'; |
| a[1] = (m & 0x2) ? 'w' : '-'; |
| a[2] = (m & 0x1) ? 'x' : '-'; |
| } |
| z[10] = '\0'; |
| sqlite3_result_text(context, z, -1, SQLITE_TRANSIENT); |
| } |
| |
| #ifndef SQLITE_OMIT_VIRTUALTABLE |
| |
| /* |
| ** Cursor type for recursively iterating through a directory structure. |
| */ |
| typedef struct fsdir_cursor fsdir_cursor; |
| typedef struct FsdirLevel FsdirLevel; |
| |
| struct FsdirLevel { |
| DIR *pDir; /* From opendir() */ |
| char *zDir; /* Name of directory (nul-terminated) */ |
| }; |
| |
| struct fsdir_cursor { |
| sqlite3_vtab_cursor base; /* Base class - must be first */ |
| |
| int nLvl; /* Number of entries in aLvl[] array */ |
| int iLvl; /* Index of current entry */ |
| FsdirLevel *aLvl; /* Hierarchy of directories being traversed */ |
| |
| const char *zBase; |
| int nBase; |
| |
| struct stat sStat; /* Current lstat() results */ |
| char *zPath; /* Path to current entry */ |
| sqlite3_int64 iRowid; /* Current rowid */ |
| }; |
| |
| typedef struct fsdir_tab fsdir_tab; |
| struct fsdir_tab { |
| sqlite3_vtab base; /* Base class - must be first */ |
| }; |
| |
| /* |
| ** Construct a new fsdir virtual table object. |
| */ |
| static int fsdirConnect( |
| sqlite3 *db, |
| void *pAux, |
| int argc, const char *const*argv, |
| sqlite3_vtab **ppVtab, |
| char **pzErr |
| ){ |
| fsdir_tab *pNew = 0; |
| int rc; |
| (void)pAux; |
| (void)argc; |
| (void)argv; |
| (void)pzErr; |
| rc = sqlite3_declare_vtab(db, "CREATE TABLE x" FSDIR_SCHEMA); |
| if( rc==SQLITE_OK ){ |
| pNew = (fsdir_tab*)sqlite3_malloc( sizeof(*pNew) ); |
| if( pNew==0 ) return SQLITE_NOMEM; |
| memset(pNew, 0, sizeof(*pNew)); |
| } |
| *ppVtab = (sqlite3_vtab*)pNew; |
| return rc; |
| } |
| |
| /* |
| ** This method is the destructor for fsdir vtab objects. |
| */ |
| static int fsdirDisconnect(sqlite3_vtab *pVtab){ |
| sqlite3_free(pVtab); |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Constructor for a new fsdir_cursor object. |
| */ |
| static int fsdirOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){ |
| fsdir_cursor *pCur; |
| (void)p; |
| pCur = sqlite3_malloc( sizeof(*pCur) ); |
| if( pCur==0 ) return SQLITE_NOMEM; |
| memset(pCur, 0, sizeof(*pCur)); |
| pCur->iLvl = -1; |
| *ppCursor = &pCur->base; |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Reset a cursor back to the state it was in when first returned |
| ** by fsdirOpen(). |
| */ |
| static void fsdirResetCursor(fsdir_cursor *pCur){ |
| int i; |
| for(i=0; i<=pCur->iLvl; i++){ |
| FsdirLevel *pLvl = &pCur->aLvl[i]; |
| if( pLvl->pDir ) closedir(pLvl->pDir); |
| sqlite3_free(pLvl->zDir); |
| } |
| sqlite3_free(pCur->zPath); |
| sqlite3_free(pCur->aLvl); |
| pCur->aLvl = 0; |
| pCur->zPath = 0; |
| pCur->zBase = 0; |
| pCur->nBase = 0; |
| pCur->nLvl = 0; |
| pCur->iLvl = -1; |
| pCur->iRowid = 1; |
| } |
| |
| /* |
| ** Destructor for an fsdir_cursor. |
| */ |
| static int fsdirClose(sqlite3_vtab_cursor *cur){ |
| fsdir_cursor *pCur = (fsdir_cursor*)cur; |
| |
| fsdirResetCursor(pCur); |
| sqlite3_free(pCur); |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Set the error message for the virtual table associated with cursor |
| ** pCur to the results of vprintf(zFmt, ...). |
| */ |
| static void fsdirSetErrmsg(fsdir_cursor *pCur, const char *zFmt, ...){ |
| va_list ap; |
| va_start(ap, zFmt); |
| pCur->base.pVtab->zErrMsg = sqlite3_vmprintf(zFmt, ap); |
| va_end(ap); |
| } |
| |
| |
| /* |
| ** Advance an fsdir_cursor to its next row of output. |
| */ |
| static int fsdirNext(sqlite3_vtab_cursor *cur){ |
| fsdir_cursor *pCur = (fsdir_cursor*)cur; |
| mode_t m = pCur->sStat.st_mode; |
| |
| pCur->iRowid++; |
| if( S_ISDIR(m) ){ |
| /* Descend into this directory */ |
| int iNew = pCur->iLvl + 1; |
| FsdirLevel *pLvl; |
| if( iNew>=pCur->nLvl ){ |
| int nNew = iNew+1; |
| sqlite3_int64 nByte = nNew*sizeof(FsdirLevel); |
| FsdirLevel *aNew = (FsdirLevel*)sqlite3_realloc64(pCur->aLvl, nByte); |
| if( aNew==0 ) return SQLITE_NOMEM; |
| memset(&aNew[pCur->nLvl], 0, sizeof(FsdirLevel)*(nNew-pCur->nLvl)); |
| pCur->aLvl = aNew; |
| pCur->nLvl = nNew; |
| } |
| pCur->iLvl = iNew; |
| pLvl = &pCur->aLvl[iNew]; |
| |
| pLvl->zDir = pCur->zPath; |
| pCur->zPath = 0; |
| pLvl->pDir = opendir(pLvl->zDir); |
| if( pLvl->pDir==0 ){ |
| fsdirSetErrmsg(pCur, "cannot read directory: %s", pCur->zPath); |
| return SQLITE_ERROR; |
| } |
| } |
| |
| while( pCur->iLvl>=0 ){ |
| FsdirLevel *pLvl = &pCur->aLvl[pCur->iLvl]; |
| struct dirent *pEntry = readdir(pLvl->pDir); |
| if( pEntry ){ |
| if( pEntry->d_name[0]=='.' ){ |
| if( pEntry->d_name[1]=='.' && pEntry->d_name[2]=='\0' ) continue; |
| if( pEntry->d_name[1]=='\0' ) continue; |
| } |
| sqlite3_free(pCur->zPath); |
| pCur->zPath = sqlite3_mprintf("%s/%s", pLvl->zDir, pEntry->d_name); |
| if( pCur->zPath==0 ) return SQLITE_NOMEM; |
| if( fileLinkStat(pCur->zPath, &pCur->sStat) ){ |
| fsdirSetErrmsg(pCur, "cannot stat file: %s", pCur->zPath); |
| return SQLITE_ERROR; |
| } |
| return SQLITE_OK; |
| } |
| closedir(pLvl->pDir); |
| sqlite3_free(pLvl->zDir); |
| pLvl->pDir = 0; |
| pLvl->zDir = 0; |
| pCur->iLvl--; |
| } |
| |
| /* EOF */ |
| sqlite3_free(pCur->zPath); |
| pCur->zPath = 0; |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Return values of columns for the row at which the series_cursor |
| ** is currently pointing. |
| */ |
| static int fsdirColumn( |
| sqlite3_vtab_cursor *cur, /* The cursor */ |
| sqlite3_context *ctx, /* First argument to sqlite3_result_...() */ |
| int i /* Which column to return */ |
| ){ |
| fsdir_cursor *pCur = (fsdir_cursor*)cur; |
| switch( i ){ |
| case FSDIR_COLUMN_NAME: { |
| sqlite3_result_text(ctx, &pCur->zPath[pCur->nBase], -1, SQLITE_TRANSIENT); |
| break; |
| } |
| |
| case FSDIR_COLUMN_MODE: |
| sqlite3_result_int64(ctx, pCur->sStat.st_mode); |
| break; |
| |
| case FSDIR_COLUMN_MTIME: |
| sqlite3_result_int64(ctx, pCur->sStat.st_mtime); |
| break; |
| |
| case FSDIR_COLUMN_DATA: { |
| mode_t m = pCur->sStat.st_mode; |
| if( S_ISDIR(m) ){ |
| sqlite3_result_null(ctx); |
| #if !defined(_WIN32) && !defined(WIN32) |
| }else if( S_ISLNK(m) ){ |
| char aStatic[64]; |
| char *aBuf = aStatic; |
| sqlite3_int64 nBuf = 64; |
| int n; |
| |
| while( 1 ){ |
| n = readlink(pCur->zPath, aBuf, nBuf); |
| if( n<nBuf ) break; |
| if( aBuf!=aStatic ) sqlite3_free(aBuf); |
| nBuf = nBuf*2; |
| aBuf = sqlite3_malloc64(nBuf); |
| if( aBuf==0 ){ |
| sqlite3_result_error_nomem(ctx); |
| return SQLITE_NOMEM; |
| } |
| } |
| |
| sqlite3_result_text(ctx, aBuf, n, SQLITE_TRANSIENT); |
| if( aBuf!=aStatic ) sqlite3_free(aBuf); |
| #endif |
| }else{ |
| readFileContents(ctx, pCur->zPath); |
| } |
| } |
| case FSDIR_COLUMN_PATH: |
| default: { |
| /* The FSDIR_COLUMN_PATH and FSDIR_COLUMN_DIR are input parameters. |
| ** always return their values as NULL */ |
| break; |
| } |
| } |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Return the rowid for the current row. In this implementation, the |
| ** first row returned is assigned rowid value 1, and each subsequent |
| ** row a value 1 more than that of the previous. |
| */ |
| static int fsdirRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){ |
| fsdir_cursor *pCur = (fsdir_cursor*)cur; |
| *pRowid = pCur->iRowid; |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Return TRUE if the cursor has been moved off of the last |
| ** row of output. |
| */ |
| static int fsdirEof(sqlite3_vtab_cursor *cur){ |
| fsdir_cursor *pCur = (fsdir_cursor*)cur; |
| return (pCur->zPath==0); |
| } |
| |
| /* |
| ** xFilter callback. |
| ** |
| ** idxNum==1 PATH parameter only |
| ** idxNum==2 Both PATH and DIR supplied |
| */ |
| static int fsdirFilter( |
| sqlite3_vtab_cursor *cur, |
| int idxNum, const char *idxStr, |
| int argc, sqlite3_value **argv |
| ){ |
| const char *zDir = 0; |
| fsdir_cursor *pCur = (fsdir_cursor*)cur; |
| (void)idxStr; |
| fsdirResetCursor(pCur); |
| |
| if( idxNum==0 ){ |
| fsdirSetErrmsg(pCur, "table function fsdir requires an argument"); |
| return SQLITE_ERROR; |
| } |
| |
| assert( argc==idxNum && (argc==1 || argc==2) ); |
| zDir = (const char*)sqlite3_value_text(argv[0]); |
| if( zDir==0 ){ |
| fsdirSetErrmsg(pCur, "table function fsdir requires a non-NULL argument"); |
| return SQLITE_ERROR; |
| } |
| if( argc==2 ){ |
| pCur->zBase = (const char*)sqlite3_value_text(argv[1]); |
| } |
| if( pCur->zBase ){ |
| pCur->nBase = (int)strlen(pCur->zBase)+1; |
| pCur->zPath = sqlite3_mprintf("%s/%s", pCur->zBase, zDir); |
| }else{ |
| pCur->zPath = sqlite3_mprintf("%s", zDir); |
| } |
| |
| if( pCur->zPath==0 ){ |
| return SQLITE_NOMEM; |
| } |
| if( fileLinkStat(pCur->zPath, &pCur->sStat) ){ |
| fsdirSetErrmsg(pCur, "cannot stat file: %s", pCur->zPath); |
| return SQLITE_ERROR; |
| } |
| |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** SQLite will invoke this method one or more times while planning a query |
| ** that uses the generate_series virtual table. This routine needs to create |
| ** a query plan for each invocation and compute an estimated cost for that |
| ** plan. |
| ** |
| ** In this implementation idxNum is used to represent the |
| ** query plan. idxStr is unused. |
| ** |
| ** The query plan is represented by values of idxNum: |
| ** |
| ** (1) The path value is supplied by argv[0] |
| ** (2) Path is in argv[0] and dir is in argv[1] |
| */ |
| static int fsdirBestIndex( |
| sqlite3_vtab *tab, |
| sqlite3_index_info *pIdxInfo |
| ){ |
| int i; /* Loop over constraints */ |
| int idxPath = -1; /* Index in pIdxInfo->aConstraint of PATH= */ |
| int idxDir = -1; /* Index in pIdxInfo->aConstraint of DIR= */ |
| int seenPath = 0; /* True if an unusable PATH= constraint is seen */ |
| int seenDir = 0; /* True if an unusable DIR= constraint is seen */ |
| const struct sqlite3_index_constraint *pConstraint; |
| |
| (void)tab; |
| pConstraint = pIdxInfo->aConstraint; |
| for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){ |
| if( pConstraint->op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue; |
| switch( pConstraint->iColumn ){ |
| case FSDIR_COLUMN_PATH: { |
| if( pConstraint->usable ){ |
| idxPath = i; |
| seenPath = 0; |
| }else if( idxPath<0 ){ |
| seenPath = 1; |
| } |
| break; |
| } |
| case FSDIR_COLUMN_DIR: { |
| if( pConstraint->usable ){ |
| idxDir = i; |
| seenDir = 0; |
| }else if( idxDir<0 ){ |
| seenDir = 1; |
| } |
| break; |
| } |
| } |
| } |
| if( seenPath || seenDir ){ |
| /* If input parameters are unusable, disallow this plan */ |
| return SQLITE_CONSTRAINT; |
| } |
| |
| if( idxPath<0 ){ |
| pIdxInfo->idxNum = 0; |
| /* The pIdxInfo->estimatedCost should have been initialized to a huge |
| ** number. Leave it unchanged. */ |
| pIdxInfo->estimatedRows = 0x7fffffff; |
| }else{ |
| pIdxInfo->aConstraintUsage[idxPath].omit = 1; |
| pIdxInfo->aConstraintUsage[idxPath].argvIndex = 1; |
| if( idxDir>=0 ){ |
| pIdxInfo->aConstraintUsage[idxDir].omit = 1; |
| pIdxInfo->aConstraintUsage[idxDir].argvIndex = 2; |
| pIdxInfo->idxNum = 2; |
| pIdxInfo->estimatedCost = 10.0; |
| }else{ |
| pIdxInfo->idxNum = 1; |
| pIdxInfo->estimatedCost = 100.0; |
| } |
| } |
| |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Register the "fsdir" virtual table. |
| */ |
| static int fsdirRegister(sqlite3 *db){ |
| static sqlite3_module fsdirModule = { |
| 0, /* iVersion */ |
| 0, /* xCreate */ |
| fsdirConnect, /* xConnect */ |
| fsdirBestIndex, /* xBestIndex */ |
| fsdirDisconnect, /* xDisconnect */ |
| 0, /* xDestroy */ |
| fsdirOpen, /* xOpen - open a cursor */ |
| fsdirClose, /* xClose - close a cursor */ |
| fsdirFilter, /* xFilter - configure scan constraints */ |
| fsdirNext, /* xNext - advance a cursor */ |
| fsdirEof, /* xEof - check for end of scan */ |
| fsdirColumn, /* xColumn - read data */ |
| fsdirRowid, /* xRowid - read data */ |
| 0, /* xUpdate */ |
| 0, /* xBegin */ |
| 0, /* xSync */ |
| 0, /* xCommit */ |
| 0, /* xRollback */ |
| 0, /* xFindMethod */ |
| 0, /* xRename */ |
| 0, /* xSavepoint */ |
| 0, /* xRelease */ |
| 0, /* xRollbackTo */ |
| 0, /* xShadowName */ |
| }; |
| |
| int rc = sqlite3_create_module(db, "fsdir", &fsdirModule, 0); |
| return rc; |
| } |
| #else /* SQLITE_OMIT_VIRTUALTABLE */ |
| # define fsdirRegister(x) SQLITE_OK |
| #endif |
| |
| #ifdef _WIN32 |
| |
| #endif |
| int sqlite3_fileio_init( |
| sqlite3 *db, |
| char **pzErrMsg, |
| const sqlite3_api_routines *pApi |
| ){ |
| int rc = SQLITE_OK; |
| SQLITE_EXTENSION_INIT2(pApi); |
| (void)pzErrMsg; /* Unused parameter */ |
| rc = sqlite3_create_function(db, "readfile", 1, SQLITE_UTF8, 0, |
| readfileFunc, 0, 0); |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_create_function(db, "writefile", -1, SQLITE_UTF8, 0, |
| writefileFunc, 0, 0); |
| } |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_create_function(db, "lsmode", 1, SQLITE_UTF8, 0, |
| lsModeFunc, 0, 0); |
| } |
| if( rc==SQLITE_OK ){ |
| rc = fsdirRegister(db); |
| } |
| return rc; |
| } |
| |
| /************************* End ../ext/misc/fileio.c ********************/ |
| /************************* Begin ../ext/misc/completion.c ******************/ |
| /* |
| ** 2017-07-10 |
| ** |
| ** The author disclaims copyright to this source code. In place of |
| ** a legal notice, here is a blessing: |
| ** |
| ** May you do good and not evil. |
| ** May you find forgiveness for yourself and forgive others. |
| ** May you share freely, never taking more than you give. |
| ** |
| ************************************************************************* |
| ** |
| ** This file implements an eponymous virtual table that returns suggested |
| ** completions for a partial SQL input. |
| ** |
| ** Suggested usage: |
| ** |
| ** SELECT DISTINCT candidate COLLATE nocase |
| ** FROM completion($prefix,$wholeline) |
| ** ORDER BY 1; |
| ** |
| ** The two query parameters are optional. $prefix is the text of the |
| ** current word being typed and that is to be completed. $wholeline is |
| ** the complete input line, used for context. |
| ** |
| ** The raw completion() table might return the same candidate multiple |
| ** times, for example if the same column name is used to two or more |
| ** tables. And the candidates are returned in an arbitrary order. Hence, |
| ** the DISTINCT and ORDER BY are recommended. |
| ** |
| ** This virtual table operates at the speed of human typing, and so there |
| ** is no attempt to make it fast. Even a slow implementation will be much |
| ** faster than any human can type. |
| ** |
| */ |
| SQLITE_EXTENSION_INIT1 |
| #include <assert.h> |
| #include <string.h> |
| #include <ctype.h> |
| |
| #ifndef SQLITE_OMIT_VIRTUALTABLE |
| |
| /* completion_vtab is a subclass of sqlite3_vtab which will |
| ** serve as the underlying representation of a completion virtual table |
| */ |
| typedef struct completion_vtab completion_vtab; |
| struct completion_vtab { |
| sqlite3_vtab base; /* Base class - must be first */ |
| sqlite3 *db; /* Database connection for this completion vtab */ |
| }; |
| |
| /* completion_cursor is a subclass of sqlite3_vtab_cursor which will |
| ** serve as the underlying representation of a cursor that scans |
| ** over rows of the result |
| */ |
| typedef struct completion_cursor completion_cursor; |
| struct completion_cursor { |
| sqlite3_vtab_cursor base; /* Base class - must be first */ |
| sqlite3 *db; /* Database connection for this cursor */ |
| int nPrefix, nLine; /* Number of bytes in zPrefix and zLine */ |
| char *zPrefix; /* The prefix for the word we want to complete */ |
| char *zLine; /* The whole that we want to complete */ |
| const char *zCurrentRow; /* Current output row */ |
| int szRow; /* Length of the zCurrentRow string */ |
| sqlite3_stmt *pStmt; /* Current statement */ |
| sqlite3_int64 iRowid; /* The rowid */ |
| int ePhase; /* Current phase */ |
| int j; /* inter-phase counter */ |
| }; |
| |
| /* Values for ePhase: |
| */ |
| #define COMPLETION_FIRST_PHASE 1 |
| #define COMPLETION_KEYWORDS 1 |
| #define COMPLETION_PRAGMAS 2 |
| #define COMPLETION_FUNCTIONS 3 |
| #define COMPLETION_COLLATIONS 4 |
| #define COMPLETION_INDEXES 5 |
| #define COMPLETION_TRIGGERS 6 |
| #define COMPLETION_DATABASES 7 |
| #define COMPLETION_TABLES 8 /* Also VIEWs and TRIGGERs */ |
| #define COMPLETION_COLUMNS 9 |
| #define COMPLETION_MODULES 10 |
| #define COMPLETION_EOF 11 |
| |
| /* |
| ** The completionConnect() method is invoked to create a new |
| ** completion_vtab that describes the completion virtual table. |
| ** |
| ** Think of this routine as the constructor for completion_vtab objects. |
| ** |
| ** All this routine needs to do is: |
| ** |
| ** (1) Allocate the completion_vtab object and initialize all fields. |
| ** |
| ** (2) Tell SQLite (via the sqlite3_declare_vtab() interface) what the |
| ** result set of queries against completion will look like. |
| */ |
| static int completionConnect( |
| sqlite3 *db, |
| void *pAux, |
| int argc, const char *const*argv, |
| sqlite3_vtab **ppVtab, |
| char **pzErr |
| ){ |
| completion_vtab *pNew; |
| int rc; |
| |
| (void)(pAux); /* Unused parameter */ |
| (void)(argc); /* Unused parameter */ |
| (void)(argv); /* Unused parameter */ |
| (void)(pzErr); /* Unused parameter */ |
| |
| /* Column numbers */ |
| #define COMPLETION_COLUMN_CANDIDATE 0 /* Suggested completion of the input */ |
| #define COMPLETION_COLUMN_PREFIX 1 /* Prefix of the word to be completed */ |
| #define COMPLETION_COLUMN_WHOLELINE 2 /* Entire line seen so far */ |
| #define COMPLETION_COLUMN_PHASE 3 /* ePhase - used for debugging only */ |
| |
| rc = sqlite3_declare_vtab(db, |
| "CREATE TABLE x(" |
| " candidate TEXT," |
| " prefix TEXT HIDDEN," |
| " wholeline TEXT HIDDEN," |
| " phase INT HIDDEN" /* Used for debugging only */ |
| ")"); |
| if( rc==SQLITE_OK ){ |
| pNew = sqlite3_malloc( sizeof(*pNew) ); |
| *ppVtab = (sqlite3_vtab*)pNew; |
| if( pNew==0 ) return SQLITE_NOMEM; |
| memset(pNew, 0, sizeof(*pNew)); |
| pNew->db = db; |
| } |
| return rc; |
| } |
| |
| /* |
| ** This method is the destructor for completion_cursor objects. |
| */ |
| static int completionDisconnect(sqlite3_vtab *pVtab){ |
| sqlite3_free(pVtab); |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Constructor for a new completion_cursor object. |
| */ |
| static int completionOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){ |
| completion_cursor *pCur; |
| pCur = sqlite3_malloc( sizeof(*pCur) ); |
| if( pCur==0 ) return SQLITE_NOMEM; |
| memset(pCur, 0, sizeof(*pCur)); |
| pCur->db = ((completion_vtab*)p)->db; |
| *ppCursor = &pCur->base; |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Reset the completion_cursor. |
| */ |
| static void completionCursorReset(completion_cursor *pCur){ |
| sqlite3_free(pCur->zPrefix); pCur->zPrefix = 0; pCur->nPrefix = 0; |
| sqlite3_free(pCur->zLine); pCur->zLine = 0; pCur->nLine = 0; |
| sqlite3_finalize(pCur->pStmt); pCur->pStmt = 0; |
| pCur->j = 0; |
| } |
| |
| /* |
| ** Destructor for a completion_cursor. |
| */ |
| static int completionClose(sqlite3_vtab_cursor *cur){ |
| completionCursorReset((completion_cursor*)cur); |
| sqlite3_free(cur); |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Advance a completion_cursor to its next row of output. |
| ** |
| ** The ->ePhase, ->j, and ->pStmt fields of the completion_cursor object |
| ** record the current state of the scan. This routine sets ->zCurrentRow |
| ** to the current row of output and then returns. If no more rows remain, |
| ** then ->ePhase is set to COMPLETION_EOF which will signal the virtual |
| ** table that has reached the end of its scan. |
| ** |
| ** The current implementation just lists potential identifiers and |
| ** keywords and filters them by zPrefix. Future enhancements should |
| ** take zLine into account to try to restrict the set of identifiers and |
| ** keywords based on what would be legal at the current point of input. |
| */ |
| static int completionNext(sqlite3_vtab_cursor *cur){ |
| completion_cursor *pCur = (completion_cursor*)cur; |
| int eNextPhase = 0; /* Next phase to try if current phase reaches end */ |
| int iCol = -1; /* If >=0, step pCur->pStmt and use the i-th column */ |
| pCur->iRowid++; |
| while( pCur->ePhase!=COMPLETION_EOF ){ |
| switch( pCur->ePhase ){ |
| case COMPLETION_KEYWORDS: { |
| if( pCur->j >= sqlite3_keyword_count() ){ |
| pCur->zCurrentRow = 0; |
| pCur->ePhase = COMPLETION_DATABASES; |
| }else{ |
| sqlite3_keyword_name(pCur->j++, &pCur->zCurrentRow, &pCur->szRow); |
| } |
| iCol = -1; |
| break; |
| } |
| case COMPLETION_DATABASES: { |
| if( pCur->pStmt==0 ){ |
| sqlite3_prepare_v2(pCur->db, "PRAGMA database_list", -1, |
| &pCur->pStmt, 0); |
| } |
| iCol = 1; |
| eNextPhase = COMPLETION_TABLES; |
| break; |
| } |
| case COMPLETION_TABLES: { |
| if( pCur->pStmt==0 ){ |
| sqlite3_stmt *pS2; |
| char *zSql = 0; |
| const char *zSep = ""; |
| sqlite3_prepare_v2(pCur->db, "PRAGMA database_list", -1, &pS2, 0); |
| while( sqlite3_step(pS2)==SQLITE_ROW ){ |
| const char *zDb = (const char*)sqlite3_column_text(pS2, 1); |
| zSql = sqlite3_mprintf( |
| "%z%s" |
| "SELECT name FROM \"%w\".sqlite_master", |
| zSql, zSep, zDb |
| ); |
| if( zSql==0 ) return SQLITE_NOMEM; |
| zSep = " UNION "; |
| } |
| sqlite3_finalize(pS2); |
| sqlite3_prepare_v2(pCur->db, zSql, -1, &pCur->pStmt, 0); |
| sqlite3_free(zSql); |
| } |
| iCol = 0; |
| eNextPhase = COMPLETION_COLUMNS; |
| break; |
| } |
| case COMPLETION_COLUMNS: { |
| if( pCur->pStmt==0 ){ |
| sqlite3_stmt *pS2; |
| char *zSql = 0; |
| const char *zSep = ""; |
| sqlite3_prepare_v2(pCur->db, "PRAGMA database_list", -1, &pS2, 0); |
| while( sqlite3_step(pS2)==SQLITE_ROW ){ |
| const char *zDb = (const char*)sqlite3_column_text(pS2, 1); |
| zSql = sqlite3_mprintf( |
| "%z%s" |
| "SELECT pti.name FROM \"%w\".sqlite_master AS sm" |
| " JOIN pragma_table_info(sm.name,%Q) AS pti" |
| " WHERE sm.type='table'", |
| zSql, zSep, zDb, zDb |
| ); |
| if( zSql==0 ) return SQLITE_NOMEM; |
| zSep = " UNION "; |
| } |
| sqlite3_finalize(pS2); |
| sqlite3_prepare_v2(pCur->db, zSql, -1, &pCur->pStmt, 0); |
| sqlite3_free(zSql); |
| } |
| iCol = 0; |
| eNextPhase = COMPLETION_EOF; |
| break; |
| } |
| } |
| if( iCol<0 ){ |
| /* This case is when the phase presets zCurrentRow */ |
| if( pCur->zCurrentRow==0 ) continue; |
| }else{ |
| if( sqlite3_step(pCur->pStmt)==SQLITE_ROW ){ |
| /* Extract the next row of content */ |
| pCur->zCurrentRow = (const char*)sqlite3_column_text(pCur->pStmt, iCol); |
| pCur->szRow = sqlite3_column_bytes(pCur->pStmt, iCol); |
| }else{ |
| /* When all rows are finished, advance to the next phase */ |
| sqlite3_finalize(pCur->pStmt); |
| pCur->pStmt = 0; |
| pCur->ePhase = eNextPhase; |
| continue; |
| } |
| } |
| if( pCur->nPrefix==0 ) break; |
| if( pCur->nPrefix<=pCur->szRow |
| && sqlite3_strnicmp(pCur->zPrefix, pCur->zCurrentRow, pCur->nPrefix)==0 |
| ){ |
| break; |
| } |
| } |
| |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Return values of columns for the row at which the completion_cursor |
| ** is currently pointing. |
| */ |
| static int completionColumn( |
| sqlite3_vtab_cursor *cur, /* The cursor */ |
| sqlite3_context *ctx, /* First argument to sqlite3_result_...() */ |
| int i /* Which column to return */ |
| ){ |
| completion_cursor *pCur = (completion_cursor*)cur; |
| switch( i ){ |
| case COMPLETION_COLUMN_CANDIDATE: { |
| sqlite3_result_text(ctx, pCur->zCurrentRow, pCur->szRow,SQLITE_TRANSIENT); |
| break; |
| } |
| case COMPLETION_COLUMN_PREFIX: { |
| sqlite3_result_text(ctx, pCur->zPrefix, -1, SQLITE_TRANSIENT); |
| break; |
| } |
| case COMPLETION_COLUMN_WHOLELINE: { |
| sqlite3_result_text(ctx, pCur->zLine, -1, SQLITE_TRANSIENT); |
| break; |
| } |
| case COMPLETION_COLUMN_PHASE: { |
| sqlite3_result_int(ctx, pCur->ePhase); |
| break; |
| } |
| } |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Return the rowid for the current row. In this implementation, the |
| ** rowid is the same as the output value. |
| */ |
| static int completionRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){ |
| completion_cursor *pCur = (completion_cursor*)cur; |
| *pRowid = pCur->iRowid; |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Return TRUE if the cursor has been moved off of the last |
| ** row of output. |
| */ |
| static int completionEof(sqlite3_vtab_cursor *cur){ |
| completion_cursor *pCur = (completion_cursor*)cur; |
| return pCur->ePhase >= COMPLETION_EOF; |
| } |
| |
| /* |
| ** This method is called to "rewind" the completion_cursor object back |
| ** to the first row of output. This method is always called at least |
| ** once prior to any call to completionColumn() or completionRowid() or |
| ** completionEof(). |
| */ |
| static int completionFilter( |
| sqlite3_vtab_cursor *pVtabCursor, |
| int idxNum, const char *idxStr, |
| int argc, sqlite3_value **argv |
| ){ |
| completion_cursor *pCur = (completion_cursor *)pVtabCursor; |
| int iArg = 0; |
| (void)(idxStr); /* Unused parameter */ |
| (void)(argc); /* Unused parameter */ |
| completionCursorReset(pCur); |
| if( idxNum & 1 ){ |
| pCur->nPrefix = sqlite3_value_bytes(argv[iArg]); |
| if( pCur->nPrefix>0 ){ |
| pCur->zPrefix = sqlite3_mprintf("%s", sqlite3_value_text(argv[iArg])); |
| if( pCur->zPrefix==0 ) return SQLITE_NOMEM; |
| } |
| iArg = 1; |
| } |
| if( idxNum & 2 ){ |
| pCur->nLine = sqlite3_value_bytes(argv[iArg]); |
| if( pCur->nLine>0 ){ |
| pCur->zLine = sqlite3_mprintf("%s", sqlite3_value_text(argv[iArg])); |
| if( pCur->zLine==0 ) return SQLITE_NOMEM; |
| } |
| } |
| if( pCur->zLine!=0 && pCur->zPrefix==0 ){ |
| int i = pCur->nLine; |
| while( i>0 && (isalnum(pCur->zLine[i-1]) || pCur->zLine[i-1]=='_') ){ |
| i--; |
| } |
| pCur->nPrefix = pCur->nLine - i; |
| if( pCur->nPrefix>0 ){ |
| pCur->zPrefix = sqlite3_mprintf("%.*s", pCur->nPrefix, pCur->zLine + i); |
| if( pCur->zPrefix==0 ) return SQLITE_NOMEM; |
| } |
| } |
| pCur->iRowid = 0; |
| pCur->ePhase = COMPLETION_FIRST_PHASE; |
| return completionNext(pVtabCursor); |
| } |
| |
| /* |
| ** SQLite will invoke this method one or more times while planning a query |
| ** that uses the completion virtual table. This routine needs to create |
| ** a query plan for each invocation and compute an estimated cost for that |
| ** plan. |
| ** |
| ** There are two hidden parameters that act as arguments to the table-valued |
| ** function: "prefix" and "wholeline". Bit 0 of idxNum is set if "prefix" |
| ** is available and bit 1 is set if "wholeline" is available. |
| */ |
| static int completionBestIndex( |
| sqlite3_vtab *tab, |
| sqlite3_index_info *pIdxInfo |
| ){ |
| int i; /* Loop over constraints */ |
| int idxNum = 0; /* The query plan bitmask */ |
| int prefixIdx = -1; /* Index of the start= constraint, or -1 if none */ |
| int wholelineIdx = -1; /* Index of the stop= constraint, or -1 if none */ |
| int nArg = 0; /* Number of arguments that completeFilter() expects */ |
| const struct sqlite3_index_constraint *pConstraint; |
| |
| (void)(tab); /* Unused parameter */ |
| pConstraint = pIdxInfo->aConstraint; |
| for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){ |
| if( pConstraint->usable==0 ) continue; |
| if( pConstraint->op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue; |
| switch( pConstraint->iColumn ){ |
| case COMPLETION_COLUMN_PREFIX: |
| prefixIdx = i; |
| idxNum |= 1; |
| break; |
| case COMPLETION_COLUMN_WHOLELINE: |
| wholelineIdx = i; |
| idxNum |= 2; |
| break; |
| } |
| } |
| if( prefixIdx>=0 ){ |
| pIdxInfo->aConstraintUsage[prefixIdx].argvIndex = ++nArg; |
| pIdxInfo->aConstraintUsage[prefixIdx].omit = 1; |
| } |
| if( wholelineIdx>=0 ){ |
| pIdxInfo->aConstraintUsage[wholelineIdx].argvIndex = ++nArg; |
| pIdxInfo->aConstraintUsage[wholelineIdx].omit = 1; |
| } |
| pIdxInfo->idxNum = idxNum; |
| pIdxInfo->estimatedCost = (double)5000 - 1000*nArg; |
| pIdxInfo->estimatedRows = 500 - 100*nArg; |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** This following structure defines all the methods for the |
| ** completion virtual table. |
| */ |
| static sqlite3_module completionModule = { |
| 0, /* iVersion */ |
| 0, /* xCreate */ |
| completionConnect, /* xConnect */ |
| completionBestIndex, /* xBestIndex */ |
| completionDisconnect, /* xDisconnect */ |
| 0, /* xDestroy */ |
| completionOpen, /* xOpen - open a cursor */ |
| completionClose, /* xClose - close a cursor */ |
| completionFilter, /* xFilter - configure scan constraints */ |
| completionNext, /* xNext - advance a cursor */ |
| completionEof, /* xEof - check for end of scan */ |
| completionColumn, /* xColumn - read data */ |
| completionRowid, /* xRowid - read data */ |
| 0, /* xUpdate */ |
| 0, /* xBegin */ |
| 0, /* xSync */ |
| 0, /* xCommit */ |
| 0, /* xRollback */ |
| 0, /* xFindMethod */ |
| 0, /* xRename */ |
| 0, /* xSavepoint */ |
| 0, /* xRelease */ |
| 0, /* xRollbackTo */ |
| 0 /* xShadowName */ |
| }; |
| |
| #endif /* SQLITE_OMIT_VIRTUALTABLE */ |
| |
| int sqlite3CompletionVtabInit(sqlite3 *db){ |
| int rc = SQLITE_OK; |
| #ifndef SQLITE_OMIT_VIRTUALTABLE |
| rc = sqlite3_create_module(db, "completion", &completionModule, 0); |
| #endif |
| return rc; |
| } |
| |
| #ifdef _WIN32 |
| |
| #endif |
| int sqlite3_completion_init( |
| sqlite3 *db, |
| char **pzErrMsg, |
| const sqlite3_api_routines *pApi |
| ){ |
| int rc = SQLITE_OK; |
| SQLITE_EXTENSION_INIT2(pApi); |
| (void)(pzErrMsg); /* Unused parameter */ |
| #ifndef SQLITE_OMIT_VIRTUALTABLE |
| rc = sqlite3CompletionVtabInit(db); |
| #endif |
| return rc; |
| } |
| |
| /************************* End ../ext/misc/completion.c ********************/ |
| /************************* Begin ../ext/misc/appendvfs.c ******************/ |
| /* |
| ** 2017-10-20 |
| ** |
| ** The author disclaims copyright to this source code. In place of |
| ** a legal notice, here is a blessing: |
| ** |
| ** May you do good and not evil. |
| ** May you find forgiveness for yourself and forgive others. |
| ** May you share freely, never taking more than you give. |
| ** |
| ****************************************************************************** |
| ** |
| ** This file implements a VFS shim that allows an SQLite database to be |
| ** appended onto the end of some other file, such as an executable. |
| ** |
| ** A special record must appear at the end of the file that identifies the |
| ** file as an appended database and provides an offset to page 1. For |
| ** best performance page 1 should be located at a disk page boundary, though |
| ** that is not required. |
| ** |
| ** When opening a database using this VFS, the connection might treat |
| ** the file as an ordinary SQLite database, or it might treat is as a |
| ** database appended onto some other file. Here are the rules: |
| ** |
| ** (1) When opening a new empty file, that file is treated as an ordinary |
| ** database. |
| ** |
| ** (2) When opening a file that begins with the standard SQLite prefix |
| ** string "SQLite format 3", that file is treated as an ordinary |
| ** database. |
| ** |
| ** (3) When opening a file that ends with the appendvfs trailer string |
| ** "Start-Of-SQLite3-NNNNNNNN" that file is treated as an appended |
| ** database. |
| ** |
| ** (4) If none of the above apply and the SQLITE_OPEN_CREATE flag is |
| ** set, then a new database is appended to the already existing file. |
| ** |
| ** (5) Otherwise, SQLITE_CANTOPEN is returned. |
| ** |
| ** To avoid unnecessary complications with the PENDING_BYTE, the size of |
| ** the file containing the database is limited to 1GB. This VFS will refuse |
| ** to read or write past the 1GB mark. This restriction might be lifted in |
| ** future versions. For now, if you need a large database, then keep the |
| ** database in a separate file. |
| ** |
| ** If the file being opened is not an appended database, then this shim is |
| ** a pass-through into the default underlying VFS. |
| **/ |
| SQLITE_EXTENSION_INIT1 |
| #include <string.h> |
| #include <assert.h> |
| |
| /* The append mark at the end of the database is: |
| ** |
| ** Start-Of-SQLite3-NNNNNNNN |
| ** 123456789 123456789 12345 |
| ** |
| ** The NNNNNNNN represents a 64-bit big-endian unsigned integer which is |
| ** the offset to page 1. |
| */ |
| #define APND_MARK_PREFIX "Start-Of-SQLite3-" |
| #define APND_MARK_PREFIX_SZ 17 |
| #define APND_MARK_SIZE 25 |
| |
| /* |
| ** Maximum size of the combined prefix + database + append-mark. This |
| ** must be less than 0x40000000 to avoid locking issues on Windows. |
| */ |
| #define APND_MAX_SIZE (65536*15259) |
| |
| /* |
| ** Forward declaration of objects used by this utility |
| */ |
| typedef struct sqlite3_vfs ApndVfs; |
| typedef struct ApndFile ApndFile; |
| |
| /* Access to a lower-level VFS that (might) implement dynamic loading, |
| ** access to randomness, etc. |
| */ |
| #define ORIGVFS(p) ((sqlite3_vfs*)((p)->pAppData)) |
| #define ORIGFILE(p) ((sqlite3_file*)(((ApndFile*)(p))+1)) |
| |
| /* An open file */ |
| struct ApndFile { |
| sqlite3_file base; /* IO methods */ |
| sqlite3_int64 iPgOne; /* File offset to page 1 */ |
| sqlite3_int64 iMark; /* Start of the append-mark */ |
| }; |
| |
| /* |
| ** Methods for ApndFile |
| */ |
| static int apndClose(sqlite3_file*); |
| static int apndRead(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst); |
| static int apndWrite(sqlite3_file*,const void*,int iAmt, sqlite3_int64 iOfst); |
| static int apndTruncate(sqlite3_file*, sqlite3_int64 size); |
| static int apndSync(sqlite3_file*, int flags); |
| static int apndFileSize(sqlite3_file*, sqlite3_int64 *pSize); |
| static int apndLock(sqlite3_file*, int); |
| static int apndUnlock(sqlite3_file*, int); |
| static int apndCheckReservedLock(sqlite3_file*, int *pResOut); |
| static int apndFileControl(sqlite3_file*, int op, void *pArg); |
| static int apndSectorSize(sqlite3_file*); |
| static int apndDeviceCharacteristics(sqlite3_file*); |
| static int apndShmMap(sqlite3_file*, int iPg, int pgsz, int, void volatile**); |
| static int apndShmLock(sqlite3_file*, int offset, int n, int flags); |
| static void apndShmBarrier(sqlite3_file*); |
| static int apndShmUnmap(sqlite3_file*, int deleteFlag); |
| static int apndFetch(sqlite3_file*, sqlite3_int64 iOfst, int iAmt, void **pp); |
| static int apndUnfetch(sqlite3_file*, sqlite3_int64 iOfst, void *p); |
| |
| /* |
| ** Methods for ApndVfs |
| */ |
| static int apndOpen(sqlite3_vfs*, const char *, sqlite3_file*, int , int *); |
| static int apndDelete(sqlite3_vfs*, const char *zName, int syncDir); |
| static int apndAccess(sqlite3_vfs*, const char *zName, int flags, int *); |
| static int apndFullPathname(sqlite3_vfs*, const char *zName, int, char *zOut); |
| static void *apndDlOpen(sqlite3_vfs*, const char *zFilename); |
| static void apndDlError(sqlite3_vfs*, int nByte, char *zErrMsg); |
| static void (*apndDlSym(sqlite3_vfs *pVfs, void *p, const char*zSym))(void); |
| static void apndDlClose(sqlite3_vfs*, void*); |
| static int apndRandomness(sqlite3_vfs*, int nByte, char *zOut); |
| static int apndSleep(sqlite3_vfs*, int microseconds); |
| static int apndCurrentTime(sqlite3_vfs*, double*); |
| static int apndGetLastError(sqlite3_vfs*, int, char *); |
| static int apndCurrentTimeInt64(sqlite3_vfs*, sqlite3_int64*); |
| static int apndSetSystemCall(sqlite3_vfs*, const char*,sqlite3_syscall_ptr); |
| static sqlite3_syscall_ptr apndGetSystemCall(sqlite3_vfs*, const char *z); |
| static const char *apndNextSystemCall(sqlite3_vfs*, const char *zName); |
| |
| static sqlite3_vfs apnd_vfs = { |
| 3, /* iVersion (set when registered) */ |
| 0, /* szOsFile (set when registered) */ |
| 1024, /* mxPathname */ |
| 0, /* pNext */ |
| "apndvfs", /* zName */ |
| 0, /* pAppData (set when registered) */ |
| apndOpen, /* xOpen */ |
| apndDelete, /* xDelete */ |
| apndAccess, /* xAccess */ |
| apndFullPathname, /* xFullPathname */ |
| apndDlOpen, /* xDlOpen */ |
| apndDlError, /* xDlError */ |
| apndDlSym, /* xDlSym */ |
| apndDlClose, /* xDlClose */ |
| apndRandomness, /* xRandomness */ |
| apndSleep, /* xSleep */ |
| apndCurrentTime, /* xCurrentTime */ |
| apndGetLastError, /* xGetLastError */ |
| apndCurrentTimeInt64, /* xCurrentTimeInt64 */ |
| apndSetSystemCall, /* xSetSystemCall */ |
| apndGetSystemCall, /* xGetSystemCall */ |
| apndNextSystemCall /* xNextSystemCall */ |
| }; |
| |
| static const sqlite3_io_methods apnd_io_methods = { |
| 3, /* iVersion */ |
| apndClose, /* xClose */ |
| apndRead, /* xRead */ |
| apndWrite, /* xWrite */ |
| apndTruncate, /* xTruncate */ |
| apndSync, /* xSync */ |
| apndFileSize, /* xFileSize */ |
| apndLock, /* xLock */ |
| apndUnlock, /* xUnlock */ |
| apndCheckReservedLock, /* xCheckReservedLock */ |
| apndFileControl, /* xFileControl */ |
| apndSectorSize, /* xSectorSize */ |
| apndDeviceCharacteristics, /* xDeviceCharacteristics */ |
| apndShmMap, /* xShmMap */ |
| apndShmLock, /* xShmLock */ |
| apndShmBarrier, /* xShmBarrier */ |
| apndShmUnmap, /* xShmUnmap */ |
| apndFetch, /* xFetch */ |
| apndUnfetch /* xUnfetch */ |
| }; |
| |
| |
| |
| /* |
| ** Close an apnd-file. |
| */ |
| static int apndClose(sqlite3_file *pFile){ |
| pFile = ORIGFILE(pFile); |
| return pFile->pMethods->xClose(pFile); |
| } |
| |
| /* |
| ** Read data from an apnd-file. |
| */ |
| static int apndRead( |
| sqlite3_file *pFile, |
| void *zBuf, |
| int iAmt, |
| sqlite_int64 iOfst |
| ){ |
| ApndFile *p = (ApndFile *)pFile; |
| pFile = ORIGFILE(pFile); |
| return pFile->pMethods->xRead(pFile, zBuf, iAmt, iOfst+p->iPgOne); |
| } |
| |
| /* |
| ** Add the append-mark onto the end of the file. |
| */ |
| static int apndWriteMark(ApndFile *p, sqlite3_file *pFile){ |
| int i; |
| unsigned char a[APND_MARK_SIZE]; |
| memcpy(a, APND_MARK_PREFIX, APND_MARK_PREFIX_SZ); |
| for(i=0; i<8; i++){ |
| a[APND_MARK_PREFIX_SZ+i] = (p->iPgOne >> (56 - i*8)) & 0xff; |
| } |
| return pFile->pMethods->xWrite(pFile, a, APND_MARK_SIZE, p->iMark); |
| } |
| |
| /* |
| ** Write data to an apnd-file. |
| */ |
| static int apndWrite( |
| sqlite3_file *pFile, |
| const void *zBuf, |
| int iAmt, |
| sqlite_int64 iOfst |
| ){ |
| int rc; |
| ApndFile *p = (ApndFile *)pFile; |
| pFile = ORIGFILE(pFile); |
| if( iOfst+iAmt>=APND_MAX_SIZE ) return SQLITE_FULL; |
| rc = pFile->pMethods->xWrite(pFile, zBuf, iAmt, iOfst+p->iPgOne); |
| if( rc==SQLITE_OK && iOfst + iAmt + p->iPgOne > p->iMark ){ |
| sqlite3_int64 sz = 0; |
| rc = pFile->pMethods->xFileSize(pFile, &sz); |
| if( rc==SQLITE_OK ){ |
| p->iMark = sz - APND_MARK_SIZE; |
| if( iOfst + iAmt + p->iPgOne > p->iMark ){ |
| p->iMark = p->iPgOne + iOfst + iAmt; |
| rc = apndWriteMark(p, pFile); |
| } |
| } |
| } |
| return rc; |
| } |
| |
| /* |
| ** Truncate an apnd-file. |
| */ |
| static int apndTruncate(sqlite3_file *pFile, sqlite_int64 size){ |
| int rc; |
| ApndFile *p = (ApndFile *)pFile; |
| pFile = ORIGFILE(pFile); |
| rc = pFile->pMethods->xTruncate(pFile, size+p->iPgOne+APND_MARK_SIZE); |
| if( rc==SQLITE_OK ){ |
| p->iMark = p->iPgOne+size; |
| rc = apndWriteMark(p, pFile); |
| } |
| return rc; |
| } |
| |
| /* |
| ** Sync an apnd-file. |
| */ |
| static int apndSync(sqlite3_file *pFile, int flags){ |
| pFile = ORIGFILE(pFile); |
| return pFile->pMethods->xSync(pFile, flags); |
| } |
| |
| /* |
| ** Return the current file-size of an apnd-file. |
| */ |
| static int apndFileSize(sqlite3_file *pFile, sqlite_int64 *pSize){ |
| ApndFile *p = (ApndFile *)pFile; |
| int rc; |
| pFile = ORIGFILE(p); |
| rc = pFile->pMethods->xFileSize(pFile, pSize); |
| if( rc==SQLITE_OK && p->iPgOne ){ |
| *pSize -= p->iPgOne + APND_MARK_SIZE; |
| } |
| return rc; |
| } |
| |
| /* |
| ** Lock an apnd-file. |
| */ |
| static int apndLock(sqlite3_file *pFile, int eLock){ |
| pFile = ORIGFILE(pFile); |
| return pFile->pMethods->xLock(pFile, eLock); |
| } |
| |
| /* |
| ** Unlock an apnd-file. |
| */ |
| static int apndUnlock(sqlite3_file *pFile, int eLock){ |
| pFile = ORIGFILE(pFile); |
| return pFile->pMethods->xUnlock(pFile, eLock); |
| } |
| |
| /* |
| ** Check if another file-handle holds a RESERVED lock on an apnd-file. |
| */ |
| static int apndCheckReservedLock(sqlite3_file *pFile, int *pResOut){ |
| pFile = ORIGFILE(pFile); |
| return pFile->pMethods->xCheckReservedLock(pFile, pResOut); |
| } |
| |
| /* |
| ** File control method. For custom operations on an apnd-file. |
| */ |
| static int apndFileControl(sqlite3_file *pFile, int op, void *pArg){ |
| ApndFile *p = (ApndFile *)pFile; |
| int rc; |
| pFile = ORIGFILE(pFile); |
| rc = pFile->pMethods->xFileControl(pFile, op, pArg); |
| if( rc==SQLITE_OK && op==SQLITE_FCNTL_VFSNAME ){ |
| *(char**)pArg = sqlite3_mprintf("apnd(%lld)/%z", p->iPgOne, *(char**)pArg); |
| } |
| return rc; |
| } |
| |
| /* |
| ** Return the sector-size in bytes for an apnd-file. |
| */ |
| static int apndSectorSize(sqlite3_file *pFile){ |
| pFile = ORIGFILE(pFile); |
| return pFile->pMethods->xSectorSize(pFile); |
| } |
| |
| /* |
| ** Return the device characteristic flags supported by an apnd-file. |
| */ |
| static int apndDeviceCharacteristics(sqlite3_file *pFile){ |
| pFile = ORIGFILE(pFile); |
| return pFile->pMethods->xDeviceCharacteristics(pFile); |
| } |
| |
| /* Create a shared memory file mapping */ |
| static int apndShmMap( |
| sqlite3_file *pFile, |
| int iPg, |
| int pgsz, |
| int bExtend, |
| void volatile **pp |
| ){ |
| pFile = ORIGFILE(pFile); |
| return pFile->pMethods->xShmMap(pFile,iPg,pgsz,bExtend,pp); |
| } |
| |
| /* Perform locking on a shared-memory segment */ |
| static int apndShmLock(sqlite3_file *pFile, int offset, int n, int flags){ |
| pFile = ORIGFILE(pFile); |
| return pFile->pMethods->xShmLock(pFile,offset,n,flags); |
| } |
| |
| /* Memory barrier operation on shared memory */ |
| static void apndShmBarrier(sqlite3_file *pFile){ |
| pFile = ORIGFILE(pFile); |
| pFile->pMethods->xShmBarrier(pFile); |
| } |
| |
| /* Unmap a shared memory segment */ |
| static int apndShmUnmap(sqlite3_file *pFile, int deleteFlag){ |
| pFile = ORIGFILE(pFile); |
| return pFile->pMethods->xShmUnmap(pFile,deleteFlag); |
| } |
| |
| /* Fetch a page of a memory-mapped file */ |
| static int apndFetch( |
| sqlite3_file *pFile, |
| sqlite3_int64 iOfst, |
| int iAmt, |
| void **pp |
| ){ |
| ApndFile *p = (ApndFile *)pFile; |
| pFile = ORIGFILE(pFile); |
| return pFile->pMethods->xFetch(pFile, iOfst+p->iPgOne, iAmt, pp); |
| } |
| |
| /* Release a memory-mapped page */ |
| static int apndUnfetch(sqlite3_file *pFile, sqlite3_int64 iOfst, void *pPage){ |
| ApndFile *p = (ApndFile *)pFile; |
| pFile = ORIGFILE(pFile); |
| return pFile->pMethods->xUnfetch(pFile, iOfst+p->iPgOne, pPage); |
| } |
| |
| /* |
| ** Check to see if the file is an ordinary SQLite database file. |
| */ |
| static int apndIsOrdinaryDatabaseFile(sqlite3_int64 sz, sqlite3_file *pFile){ |
| int rc; |
| char zHdr[16]; |
| static const char aSqliteHdr[] = "SQLite format 3"; |
| if( sz<512 ) return 0; |
| rc = pFile->pMethods->xRead(pFile, zHdr, sizeof(zHdr), 0); |
| if( rc ) return 0; |
| return memcmp(zHdr, aSqliteHdr, sizeof(zHdr))==0; |
| } |
| |
| /* |
| ** Try to read the append-mark off the end of a file. Return the |
| ** start of the appended database if the append-mark is present. If |
| ** there is no append-mark, return -1; |
| */ |
| static sqlite3_int64 apndReadMark(sqlite3_int64 sz, sqlite3_file *pFile){ |
| int rc, i; |
| sqlite3_int64 iMark; |
| unsigned char a[APND_MARK_SIZE]; |
| |
| if( sz<=APND_MARK_SIZE ) return -1; |
| rc = pFile->pMethods->xRead(pFile, a, APND_MARK_SIZE, sz-APND_MARK_SIZE); |
| if( rc ) return -1; |
| if( memcmp(a, APND_MARK_PREFIX, APND_MARK_PREFIX_SZ)!=0 ) return -1; |
| iMark = ((sqlite3_int64)(a[APND_MARK_PREFIX_SZ]&0x7f))<<56; |
| for(i=1; i<8; i++){ |
| iMark += (sqlite3_int64)a[APND_MARK_PREFIX_SZ+i]<<(56-8*i); |
| } |
| return iMark; |
| } |
| |
| /* |
| ** Open an apnd file handle. |
| */ |
| static int apndOpen( |
| sqlite3_vfs *pVfs, |
| const char *zName, |
| sqlite3_file *pFile, |
| int flags, |
| int *pOutFlags |
| ){ |
| ApndFile *p; |
| sqlite3_file *pSubFile; |
| sqlite3_vfs *pSubVfs; |
| int rc; |
| sqlite3_int64 sz; |
| pSubVfs = ORIGVFS(pVfs); |
| if( (flags & SQLITE_OPEN_MAIN_DB)==0 ){ |
| return pSubVfs->xOpen(pSubVfs, zName, pFile, flags, pOutFlags); |
| } |
| p = (ApndFile*)pFile; |
| memset(p, 0, sizeof(*p)); |
| pSubFile = ORIGFILE(pFile); |
| p->base.pMethods = &apnd_io_methods; |
| rc = pSubVfs->xOpen(pSubVfs, zName, pSubFile, flags, pOutFlags); |
| if( rc ) goto apnd_open_done; |
| rc = pSubFile->pMethods->xFileSize(pSubFile, &sz); |
| if( rc ){ |
| pSubFile->pMethods->xClose(pSubFile); |
| goto apnd_open_done; |
| } |
| if( apndIsOrdinaryDatabaseFile(sz, pSubFile) ){ |
| memmove(pFile, pSubFile, pSubVfs->szOsFile); |
| return SQLITE_OK; |
| } |
| p->iMark = 0; |
| p->iPgOne = apndReadMark(sz, pFile); |
| if( p->iPgOne>0 ){ |
| return SQLITE_OK; |
| } |
| if( (flags & SQLITE_OPEN_CREATE)==0 ){ |
| pSubFile->pMethods->xClose(pSubFile); |
| rc = SQLITE_CANTOPEN; |
| } |
| p->iPgOne = (sz+0xfff) & ~(sqlite3_int64)0xfff; |
| apnd_open_done: |
| if( rc ) pFile->pMethods = 0; |
| return rc; |
| } |
| |
| /* |
| ** All other VFS methods are pass-thrus. |
| */ |
| static int apndDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){ |
| return ORIGVFS(pVfs)->xDelete(ORIGVFS(pVfs), zPath, dirSync); |
| } |
| static int apndAccess( |
| sqlite3_vfs *pVfs, |
| const char *zPath, |
| int flags, |
| int *pResOut |
| ){ |
| return ORIGVFS(pVfs)->xAccess(ORIGVFS(pVfs), zPath, flags, pResOut); |
| } |
| static int apndFullPathname( |
| sqlite3_vfs *pVfs, |
| const char *zPath, |
| int nOut, |
| char *zOut |
| ){ |
| return ORIGVFS(pVfs)->xFullPathname(ORIGVFS(pVfs),zPath,nOut,zOut); |
| } |
| static void *apndDlOpen(sqlite3_vfs *pVfs, const char *zPath){ |
| return ORIGVFS(pVfs)->xDlOpen(ORIGVFS(pVfs), zPath); |
| } |
| static void apndDlError(sqlite3_vfs *pVfs, int nByte, char *zErrMsg){ |
| ORIGVFS(pVfs)->xDlError(ORIGVFS(pVfs), nByte, zErrMsg); |
| } |
| static void (*apndDlSym(sqlite3_vfs *pVfs, void *p, const char *zSym))(void){ |
| return ORIGVFS(pVfs)->xDlSym(ORIGVFS(pVfs), p, zSym); |
| } |
| static void apndDlClose(sqlite3_vfs *pVfs, void *pHandle){ |
| ORIGVFS(pVfs)->xDlClose(ORIGVFS(pVfs), pHandle); |
| } |
| static int apndRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){ |
| return ORIGVFS(pVfs)->xRandomness(ORIGVFS(pVfs), nByte, zBufOut); |
| } |
| static int apndSleep(sqlite3_vfs *pVfs, int nMicro){ |
| return ORIGVFS(pVfs)->xSleep(ORIGVFS(pVfs), nMicro); |
| } |
| static int apndCurrentTime(sqlite3_vfs *pVfs, double *pTimeOut){ |
| return ORIGVFS(pVfs)->xCurrentTime(ORIGVFS(pVfs), pTimeOut); |
| } |
| static int apndGetLastError(sqlite3_vfs *pVfs, int a, char *b){ |
| return ORIGVFS(pVfs)->xGetLastError(ORIGVFS(pVfs), a, b); |
| } |
| static int apndCurrentTimeInt64(sqlite3_vfs *pVfs, sqlite3_int64 *p){ |
| return ORIGVFS(pVfs)->xCurrentTimeInt64(ORIGVFS(pVfs), p); |
| } |
| static int apndSetSystemCall( |
| sqlite3_vfs *pVfs, |
| const char *zName, |
| sqlite3_syscall_ptr pCall |
| ){ |
| return ORIGVFS(pVfs)->xSetSystemCall(ORIGVFS(pVfs),zName,pCall); |
| } |
| static sqlite3_syscall_ptr apndGetSystemCall( |
| sqlite3_vfs *pVfs, |
| const char *zName |
| ){ |
| return ORIGVFS(pVfs)->xGetSystemCall(ORIGVFS(pVfs),zName); |
| } |
| static const char *apndNextSystemCall(sqlite3_vfs *pVfs, const char *zName){ |
| return ORIGVFS(pVfs)->xNextSystemCall(ORIGVFS(pVfs), zName); |
| } |
| |
| |
| #ifdef _WIN32 |
| |
| #endif |
| /* |
| ** This routine is called when the extension is loaded. |
| ** Register the new VFS. |
| */ |
| int sqlite3_appendvfs_init( |
| sqlite3 *db, |
| char **pzErrMsg, |
| const sqlite3_api_routines *pApi |
| ){ |
| int rc = SQLITE_OK; |
| sqlite3_vfs *pOrig; |
| SQLITE_EXTENSION_INIT2(pApi); |
| (void)pzErrMsg; |
| (void)db; |
| pOrig = sqlite3_vfs_find(0); |
| apnd_vfs.iVersion = pOrig->iVersion; |
| apnd_vfs.pAppData = pOrig; |
| apnd_vfs.szOsFile = pOrig->szOsFile + sizeof(ApndFile); |
| rc = sqlite3_vfs_register(&apnd_vfs, 0); |
| #ifdef APPENDVFS_TEST |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_auto_extension((void(*)(void))apndvfsRegister); |
| } |
| #endif |
| if( rc==SQLITE_OK ) rc = SQLITE_OK_LOAD_PERMANENTLY; |
| return rc; |
| } |
| |
| /************************* End ../ext/misc/appendvfs.c ********************/ |
| /************************* Begin ../ext/misc/memtrace.c ******************/ |
| /* |
| ** 2019-01-21 |
| ** |
| ** The author disclaims copyright to this source code. In place of |
| ** a legal notice, here is a blessing: |
| ** |
| ** May you do good and not evil. |
| ** May you find forgiveness for yourself and forgive others. |
| ** May you share freely, never taking more than you give. |
| ** |
| ************************************************************************* |
| ** |
| ** This file implements an extension that uses the SQLITE_CONFIG_MALLOC |
| ** mechanism to add a tracing layer on top of SQLite. If this extension |
| ** is registered prior to sqlite3_initialize(), it will cause all memory |
| ** allocation activities to be logged on standard output, or to some other |
| ** FILE specified by the initializer. |
| ** |
| ** This file needs to be compiled into the application that uses it. |
| ** |
| ** This extension is used to implement the --memtrace option of the |
| ** command-line shell. |
| */ |
| #include <assert.h> |
| #include <string.h> |
| #include <stdio.h> |
| |
| /* The original memory allocation routines */ |
| static sqlite3_mem_methods memtraceBase; |
| static FILE *memtraceOut; |
| |
| /* Methods that trace memory allocations */ |
| static void *memtraceMalloc(int n){ |
| if( memtraceOut ){ |
| fprintf(memtraceOut, "MEMTRACE: allocate %d bytes\n", |
| memtraceBase.xRoundup(n)); |
| } |
| return memtraceBase.xMalloc(n); |
| } |
| static void memtraceFree(void *p){ |
| if( p==0 ) return; |
| if( memtraceOut ){ |
| fprintf(memtraceOut, "MEMTRACE: free %d bytes\n", memtraceBase.xSize(p)); |
| } |
| memtraceBase.xFree(p); |
| } |
| static void *memtraceRealloc(void *p, int n){ |
| if( p==0 ) return memtraceMalloc(n); |
| if( n==0 ){ |
| memtraceFree(p); |
| return 0; |
| } |
| if( memtraceOut ){ |
| fprintf(memtraceOut, "MEMTRACE: resize %d -> %d bytes\n", |
| memtraceBase.xSize(p), memtraceBase.xRoundup(n)); |
| } |
| return memtraceBase.xRealloc(p, n); |
| } |
| static int memtraceSize(void *p){ |
| return memtraceBase.xSize(p); |
| } |
| static int memtraceRoundup(int n){ |
| return memtraceBase.xRoundup(n); |
| } |
| static int memtraceInit(void *p){ |
| return memtraceBase.xInit(p); |
| } |
| static void memtraceShutdown(void *p){ |
| memtraceBase.xShutdown(p); |
| } |
| |
| /* The substitute memory allocator */ |
| static sqlite3_mem_methods ersaztMethods = { |
| memtraceMalloc, |
| memtraceFree, |
| memtraceRealloc, |
| memtraceSize, |
| memtraceRoundup, |
| memtraceInit, |
| memtraceShutdown, |
| 0 |
| }; |
| |
| /* Begin tracing memory allocations to out. */ |
| int sqlite3MemTraceActivate(FILE *out){ |
| int rc = SQLITE_OK; |
| if( memtraceBase.xMalloc==0 ){ |
| rc = sqlite3_config(SQLITE_CONFIG_GETMALLOC, &memtraceBase); |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_config(SQLITE_CONFIG_MALLOC, &ersaztMethods); |
| } |
| } |
| memtraceOut = out; |
| return rc; |
| } |
| |
| /* Deactivate memory tracing */ |
| int sqlite3MemTraceDeactivate(void){ |
| int rc = SQLITE_OK; |
| if( memtraceBase.xMalloc!=0 ){ |
| rc = sqlite3_config(SQLITE_CONFIG_MALLOC, &memtraceBase); |
| if( rc==SQLITE_OK ){ |
| memset(&memtraceBase, 0, sizeof(memtraceBase)); |
| } |
| } |
| memtraceOut = 0; |
| return rc; |
| } |
| |
| /************************* End ../ext/misc/memtrace.c ********************/ |
| #ifdef SQLITE_HAVE_ZLIB |
| /************************* Begin ../ext/misc/zipfile.c ******************/ |
| /* |
| ** 2017-12-26 |
| ** |
| ** The author disclaims copyright to this source code. In place of |
| ** a legal notice, here is a blessing: |
| ** |
| ** May you do good and not evil. |
| ** May you find forgiveness for yourself and forgive others. |
| ** May you share freely, never taking more than you give. |
| ** |
| ****************************************************************************** |
| ** |
| ** This file implements a virtual table for reading and writing ZIP archive |
| ** files. |
| ** |
| ** Usage example: |
| ** |
| ** SELECT name, sz, datetime(mtime,'unixepoch') FROM zipfile($filename); |
| ** |
| ** Current limitations: |
| ** |
| ** * No support for encryption |
| ** * No support for ZIP archives spanning multiple files |
| ** * No support for zip64 extensions |
| ** * Only the "inflate/deflate" (zlib) compression method is supported |
| */ |
| SQLITE_EXTENSION_INIT1 |
| #include <stdio.h> |
| #include <string.h> |
| #include <assert.h> |
| |
| #include <zlib.h> |
| |
| #ifndef SQLITE_OMIT_VIRTUALTABLE |
| |
| #ifndef SQLITE_AMALGAMATION |
| |
| /* typedef sqlite3_int64 i64; */ |
| /* typedef unsigned char u8; */ |
| typedef unsigned short u16; |
| typedef unsigned long u32; |
| #define MIN(a,b) ((a)<(b) ? (a) : (b)) |
| |
| #if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST) |
| # define ALWAYS(X) (1) |
| # define NEVER(X) (0) |
| #elif !defined(NDEBUG) |
| # define ALWAYS(X) ((X)?1:(assert(0),0)) |
| # define NEVER(X) ((X)?(assert(0),1):0) |
| #else |
| # define ALWAYS(X) (X) |
| # define NEVER(X) (X) |
| #endif |
| |
| #endif /* SQLITE_AMALGAMATION */ |
| |
| /* |
| ** Definitions for mode bitmasks S_IFDIR, S_IFREG and S_IFLNK. |
| ** |
| ** In some ways it would be better to obtain these values from system |
| ** header files. But, the dependency is undesirable and (a) these |
| ** have been stable for decades, (b) the values are part of POSIX and |
| ** are also made explicit in [man stat], and (c) are part of the |
| ** file format for zip archives. |
| */ |
| #ifndef S_IFDIR |
| # define S_IFDIR 0040000 |
| #endif |
| #ifndef S_IFREG |
| # define S_IFREG 0100000 |
| #endif |
| #ifndef S_IFLNK |
| # define S_IFLNK 0120000 |
| #endif |
| |
| static const char ZIPFILE_SCHEMA[] = |
| "CREATE TABLE y(" |
| "name PRIMARY KEY," /* 0: Name of file in zip archive */ |
| "mode," /* 1: POSIX mode for file */ |
| "mtime," /* 2: Last modification time (secs since 1970)*/ |
| "sz," /* 3: Size of object */ |
| "rawdata," /* 4: Raw data */ |
| "data," /* 5: Uncompressed data */ |
| "method," /* 6: Compression method (integer) */ |
| "z HIDDEN" /* 7: Name of zip file */ |
| ") WITHOUT ROWID;"; |
| |
| #define ZIPFILE_F_COLUMN_IDX 7 /* Index of column "file" in the above */ |
| #define ZIPFILE_BUFFER_SIZE (64*1024) |
| |
| |
| /* |
| ** Magic numbers used to read and write zip files. |
| ** |
| ** ZIPFILE_NEWENTRY_MADEBY: |
| ** Use this value for the "version-made-by" field in new zip file |
| ** entries. The upper byte indicates "unix", and the lower byte |
| ** indicates that the zip file matches pkzip specification 3.0. |
| ** This is what info-zip seems to do. |
| ** |
| ** ZIPFILE_NEWENTRY_REQUIRED: |
| ** Value for "version-required-to-extract" field of new entries. |
| ** Version 2.0 is required to support folders and deflate compression. |
| ** |
| ** ZIPFILE_NEWENTRY_FLAGS: |
| ** Value for "general-purpose-bit-flags" field of new entries. Bit |
| ** 11 means "utf-8 filename and comment". |
| ** |
| ** ZIPFILE_SIGNATURE_CDS: |
| ** First 4 bytes of a valid CDS record. |
| ** |
| ** ZIPFILE_SIGNATURE_LFH: |
| ** First 4 bytes of a valid LFH record. |
| ** |
| ** ZIPFILE_SIGNATURE_EOCD |
| ** First 4 bytes of a valid EOCD record. |
| */ |
| #define ZIPFILE_EXTRA_TIMESTAMP 0x5455 |
| #define ZIPFILE_NEWENTRY_MADEBY ((3<<8) + 30) |
| #define ZIPFILE_NEWENTRY_REQUIRED 20 |
| #define ZIPFILE_NEWENTRY_FLAGS 0x800 |
| #define ZIPFILE_SIGNATURE_CDS 0x02014b50 |
| #define ZIPFILE_SIGNATURE_LFH 0x04034b50 |
| #define ZIPFILE_SIGNATURE_EOCD 0x06054b50 |
| |
| /* |
| ** The sizes of the fixed-size part of each of the three main data |
| ** structures in a zip archive. |
| */ |
| #define ZIPFILE_LFH_FIXED_SZ 30 |
| #define ZIPFILE_EOCD_FIXED_SZ 22 |
| #define ZIPFILE_CDS_FIXED_SZ 46 |
| |
| /* |
| *** 4.3.16 End of central directory record: |
| *** |
| *** end of central dir signature 4 bytes (0x06054b50) |
| *** number of this disk 2 bytes |
| *** number of the disk with the |
| *** start of the central directory 2 bytes |
| *** total number of entries in the |
| *** central directory on this disk 2 bytes |
| *** total number of entries in |
| *** the central directory 2 bytes |
| *** size of the central directory 4 bytes |
| *** offset of start of central |
| *** directory with respect to |
| *** the starting disk number 4 bytes |
| *** .ZIP file comment length 2 bytes |
| *** .ZIP file comment (variable size) |
| */ |
| typedef struct ZipfileEOCD ZipfileEOCD; |
| struct ZipfileEOCD { |
| u16 iDisk; |
| u16 iFirstDisk; |
| u16 nEntry; |
| u16 nEntryTotal; |
| u32 nSize; |
| u32 iOffset; |
| }; |
| |
| /* |
| *** 4.3.12 Central directory structure: |
| *** |
| *** ... |
| *** |
| *** central file header signature 4 bytes (0x02014b50) |
| *** version made by 2 bytes |
| *** version needed to extract 2 bytes |
| *** general purpose bit flag 2 bytes |
| *** compression method 2 bytes |
| *** last mod file time 2 bytes |
| *** last mod file date 2 bytes |
| *** crc-32 4 bytes |
| *** compressed size 4 bytes |
| *** uncompressed size 4 bytes |
| *** file name length 2 bytes |
| *** extra field length 2 bytes |
| *** file comment length 2 bytes |
| *** disk number start 2 bytes |
| *** internal file attributes 2 bytes |
| *** external file attributes 4 bytes |
| *** relative offset of local header 4 bytes |
| */ |
| typedef struct ZipfileCDS ZipfileCDS; |
| struct ZipfileCDS { |
| u16 iVersionMadeBy; |
| u16 iVersionExtract; |
| u16 flags; |
| u16 iCompression; |
| u16 mTime; |
| u16 mDate; |
| u32 crc32; |
| u32 szCompressed; |
| u32 szUncompressed; |
| u16 nFile; |
| u16 nExtra; |
| u16 nComment; |
| u16 iDiskStart; |
| u16 iInternalAttr; |
| u32 iExternalAttr; |
| u32 iOffset; |
| char *zFile; /* Filename (sqlite3_malloc()) */ |
| }; |
| |
| /* |
| *** 4.3.7 Local file header: |
| *** |
| *** local file header signature 4 bytes (0x04034b50) |
| *** version needed to extract 2 bytes |
| *** general purpose bit flag 2 bytes |
| *** compression method 2 bytes |
| *** last mod file time 2 bytes |
| *** last mod file date 2 bytes |
| *** crc-32 4 bytes |
| *** compressed size 4 bytes |
| *** uncompressed size 4 bytes |
| *** file name length 2 bytes |
| *** extra field length 2 bytes |
| *** |
| */ |
| typedef struct ZipfileLFH ZipfileLFH; |
| struct ZipfileLFH { |
| u16 iVersionExtract; |
| u16 flags; |
| u16 iCompression; |
| u16 mTime; |
| u16 mDate; |
| u32 crc32; |
| u32 szCompressed; |
| u32 szUncompressed; |
| u16 nFile; |
| u16 nExtra; |
| }; |
| |
| typedef struct ZipfileEntry ZipfileEntry; |
| struct ZipfileEntry { |
| ZipfileCDS cds; /* Parsed CDS record */ |
| u32 mUnixTime; /* Modification time, in UNIX format */ |
| u8 *aExtra; /* cds.nExtra+cds.nComment bytes of extra data */ |
| i64 iDataOff; /* Offset to data in file (if aData==0) */ |
| u8 *aData; /* cds.szCompressed bytes of compressed data */ |
| ZipfileEntry *pNext; /* Next element in in-memory CDS */ |
| }; |
| |
| /* |
| ** Cursor type for zipfile tables. |
| */ |
| typedef struct ZipfileCsr ZipfileCsr; |
| struct ZipfileCsr { |
| sqlite3_vtab_cursor base; /* Base class - must be first */ |
| i64 iId; /* Cursor ID */ |
| u8 bEof; /* True when at EOF */ |
| u8 bNoop; /* If next xNext() call is no-op */ |
| |
| /* Used outside of write transactions */ |
| FILE *pFile; /* Zip file */ |
| i64 iNextOff; /* Offset of next record in central directory */ |
| ZipfileEOCD eocd; /* Parse of central directory record */ |
| |
| ZipfileEntry *pFreeEntry; /* Free this list when cursor is closed or reset */ |
| ZipfileEntry *pCurrent; /* Current entry */ |
| ZipfileCsr *pCsrNext; /* Next cursor on same virtual table */ |
| }; |
| |
| typedef struct ZipfileTab ZipfileTab; |
| struct ZipfileTab { |
| sqlite3_vtab base; /* Base class - must be first */ |
| char *zFile; /* Zip file this table accesses (may be NULL) */ |
| sqlite3 *db; /* Host database connection */ |
| u8 *aBuffer; /* Temporary buffer used for various tasks */ |
| |
| ZipfileCsr *pCsrList; /* List of cursors */ |
| i64 iNextCsrid; |
| |
| /* The following are used by write transactions only */ |
| ZipfileEntry *pFirstEntry; /* Linked list of all files (if pWriteFd!=0) */ |
| ZipfileEntry *pLastEntry; /* Last element in pFirstEntry list */ |
| FILE *pWriteFd; /* File handle open on zip archive */ |
| i64 szCurrent; /* Current size of zip archive */ |
| i64 szOrig; /* Size of archive at start of transaction */ |
| }; |
| |
| /* |
| ** Set the error message contained in context ctx to the results of |
| ** vprintf(zFmt, ...). |
| */ |
| static void zipfileCtxErrorMsg(sqlite3_context *ctx, const char *zFmt, ...){ |
| char *zMsg = 0; |
| va_list ap; |
| va_start(ap, zFmt); |
| zMsg = sqlite3_vmprintf(zFmt, ap); |
| sqlite3_result_error(ctx, zMsg, -1); |
| sqlite3_free(zMsg); |
| va_end(ap); |
| } |
| |
| /* |
| ** If string zIn is quoted, dequote it in place. Otherwise, if the string |
| ** is not quoted, do nothing. |
| */ |
| static void zipfileDequote(char *zIn){ |
| char q = zIn[0]; |
| if( q=='"' || q=='\'' || q=='`' || q=='[' ){ |
| int iIn = 1; |
| int iOut = 0; |
| if( q=='[' ) q = ']'; |
| while( ALWAYS(zIn[iIn]) ){ |
| char c = zIn[iIn++]; |
| if( c==q && zIn[iIn++]!=q ) break; |
| zIn[iOut++] = c; |
| } |
| zIn[iOut] = '\0'; |
| } |
| } |
| |
| /* |
| ** Construct a new ZipfileTab virtual table object. |
| ** |
| ** argv[0] -> module name ("zipfile") |
| ** argv[1] -> database name |
| ** argv[2] -> table name |
| ** argv[...] -> "column name" and other module argument fields. |
| */ |
| static int zipfileConnect( |
| sqlite3 *db, |
| void *pAux, |
| int argc, const char *const*argv, |
| sqlite3_vtab **ppVtab, |
| char **pzErr |
| ){ |
| int nByte = sizeof(ZipfileTab) + ZIPFILE_BUFFER_SIZE; |
| int nFile = 0; |
| const char *zFile = 0; |
| ZipfileTab *pNew = 0; |
| int rc; |
| |
| /* If the table name is not "zipfile", require that the argument be |
| ** specified. This stops zipfile tables from being created as: |
| ** |
| ** CREATE VIRTUAL TABLE zzz USING zipfile(); |
| ** |
| ** It does not prevent: |
| ** |
| ** CREATE VIRTUAL TABLE zipfile USING zipfile(); |
| */ |
| assert( 0==sqlite3_stricmp(argv[0], "zipfile") ); |
| if( (0!=sqlite3_stricmp(argv[2], "zipfile") && argc<4) || argc>4 ){ |
| *pzErr = sqlite3_mprintf("zipfile constructor requires one argument"); |
| return SQLITE_ERROR; |
| } |
| |
| if( argc>3 ){ |
| zFile = argv[3]; |
| nFile = (int)strlen(zFile)+1; |
| } |
| |
| rc = sqlite3_declare_vtab(db, ZIPFILE_SCHEMA); |
| if( rc==SQLITE_OK ){ |
| pNew = (ZipfileTab*)sqlite3_malloc64((sqlite3_int64)nByte+nFile); |
| if( pNew==0 ) return SQLITE_NOMEM; |
| memset(pNew, 0, nByte+nFile); |
| pNew->db = db; |
| pNew->aBuffer = (u8*)&pNew[1]; |
| if( zFile ){ |
| pNew->zFile = (char*)&pNew->aBuffer[ZIPFILE_BUFFER_SIZE]; |
| memcpy(pNew->zFile, zFile, nFile); |
| zipfileDequote(pNew->zFile); |
| } |
| } |
| *ppVtab = (sqlite3_vtab*)pNew; |
| return rc; |
| } |
| |
| /* |
| ** Free the ZipfileEntry structure indicated by the only argument. |
| */ |
| static void zipfileEntryFree(ZipfileEntry *p){ |
| if( p ){ |
| sqlite3_free(p->cds.zFile); |
| sqlite3_free(p); |
| } |
| } |
| |
| /* |
| ** Release resources that should be freed at the end of a write |
| ** transaction. |
| */ |
| static void zipfileCleanupTransaction(ZipfileTab *pTab){ |
| ZipfileEntry *pEntry; |
| ZipfileEntry *pNext; |
| |
| if( pTab->pWriteFd ){ |
| fclose(pTab->pWriteFd); |
| pTab->pWriteFd = 0; |
| } |
| for(pEntry=pTab->pFirstEntry; pEntry; pEntry=pNext){ |
| pNext = pEntry->pNext; |
| zipfileEntryFree(pEntry); |
| } |
| pTab->pFirstEntry = 0; |
| pTab->pLastEntry = 0; |
| pTab->szCurrent = 0; |
| pTab->szOrig = 0; |
| } |
| |
| /* |
| ** This method is the destructor for zipfile vtab objects. |
| */ |
| static int zipfileDisconnect(sqlite3_vtab *pVtab){ |
| zipfileCleanupTransaction((ZipfileTab*)pVtab); |
| sqlite3_free(pVtab); |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Constructor for a new ZipfileCsr object. |
| */ |
| static int zipfileOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCsr){ |
| ZipfileTab *pTab = (ZipfileTab*)p; |
| ZipfileCsr *pCsr; |
| pCsr = sqlite3_malloc(sizeof(*pCsr)); |
| *ppCsr = (sqlite3_vtab_cursor*)pCsr; |
| if( pCsr==0 ){ |
| return SQLITE_NOMEM; |
| } |
| memset(pCsr, 0, sizeof(*pCsr)); |
| pCsr->iId = ++pTab->iNextCsrid; |
| pCsr->pCsrNext = pTab->pCsrList; |
| pTab->pCsrList = pCsr; |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Reset a cursor back to the state it was in when first returned |
| ** by zipfileOpen(). |
| */ |
| static void zipfileResetCursor(ZipfileCsr *pCsr){ |
| ZipfileEntry *p; |
| ZipfileEntry *pNext; |
| |
| pCsr->bEof = 0; |
| if( pCsr->pFile ){ |
| fclose(pCsr->pFile); |
| pCsr->pFile = 0; |
| zipfileEntryFree(pCsr->pCurrent); |
| pCsr->pCurrent = 0; |
| } |
| |
| for(p=pCsr->pFreeEntry; p; p=pNext){ |
| pNext = p->pNext; |
| zipfileEntryFree(p); |
| } |
| } |
| |
| /* |
| ** Destructor for an ZipfileCsr. |
| */ |
| static int zipfileClose(sqlite3_vtab_cursor *cur){ |
| ZipfileCsr *pCsr = (ZipfileCsr*)cur; |
| ZipfileTab *pTab = (ZipfileTab*)(pCsr->base.pVtab); |
| ZipfileCsr **pp; |
| zipfileResetCursor(pCsr); |
| |
| /* Remove this cursor from the ZipfileTab.pCsrList list. */ |
| for(pp=&pTab->pCsrList; *pp!=pCsr; pp=&((*pp)->pCsrNext)); |
| *pp = pCsr->pCsrNext; |
| |
| sqlite3_free(pCsr); |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Set the error message for the virtual table associated with cursor |
| ** pCsr to the results of vprintf(zFmt, ...). |
| */ |
| static void zipfileTableErr(ZipfileTab *pTab, const char *zFmt, ...){ |
| va_list ap; |
| va_start(ap, zFmt); |
| sqlite3_free(pTab->base.zErrMsg); |
| pTab->base.zErrMsg = sqlite3_vmprintf(zFmt, ap); |
| va_end(ap); |
| } |
| static void zipfileCursorErr(ZipfileCsr *pCsr, const char *zFmt, ...){ |
| va_list ap; |
| va_start(ap, zFmt); |
| sqlite3_free(pCsr->base.pVtab->zErrMsg); |
| pCsr->base.pVtab->zErrMsg = sqlite3_vmprintf(zFmt, ap); |
| va_end(ap); |
| } |
| |
| /* |
| ** Read nRead bytes of data from offset iOff of file pFile into buffer |
| ** aRead[]. Return SQLITE_OK if successful, or an SQLite error code |
| ** otherwise. |
| ** |
| ** If an error does occur, output variable (*pzErrmsg) may be set to point |
| ** to an English language error message. It is the responsibility of the |
| ** caller to eventually free this buffer using |
| ** sqlite3_free(). |
| */ |
| static int zipfileReadData( |
| FILE *pFile, /* Read from this file */ |
| u8 *aRead, /* Read into this buffer */ |
| int nRead, /* Number of bytes to read */ |
| i64 iOff, /* Offset to read from */ |
| char **pzErrmsg /* OUT: Error message (from sqlite3_malloc) */ |
| ){ |
| size_t n; |
| fseek(pFile, (long)iOff, SEEK_SET); |
| n = fread(aRead, 1, nRead, pFile); |
| if( (int)n!=nRead ){ |
| *pzErrmsg = sqlite3_mprintf("error in fread()"); |
| return SQLITE_ERROR; |
| } |
| return SQLITE_OK; |
| } |
| |
| static int zipfileAppendData( |
| ZipfileTab *pTab, |
| const u8 *aWrite, |
| int nWrite |
| ){ |
| size_t n; |
| fseek(pTab->pWriteFd, (long)pTab->szCurrent, SEEK_SET); |
| n = fwrite(aWrite, 1, nWrite, pTab->pWriteFd); |
| if( (int)n!=nWrite ){ |
| pTab->base.zErrMsg = sqlite3_mprintf("error in fwrite()"); |
| return SQLITE_ERROR; |
| } |
| pTab->szCurrent += nWrite; |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Read and return a 16-bit little-endian unsigned integer from buffer aBuf. |
| */ |
| static u16 zipfileGetU16(const u8 *aBuf){ |
| return (aBuf[1] << 8) + aBuf[0]; |
| } |
| |
| /* |
| ** Read and return a 32-bit little-endian unsigned integer from buffer aBuf. |
| */ |
| static u32 zipfileGetU32(const u8 *aBuf){ |
| return ((u32)(aBuf[3]) << 24) |
| + ((u32)(aBuf[2]) << 16) |
| + ((u32)(aBuf[1]) << 8) |
| + ((u32)(aBuf[0]) << 0); |
| } |
| |
| /* |
| ** Write a 16-bit little endiate integer into buffer aBuf. |
| */ |
| static void zipfilePutU16(u8 *aBuf, u16 val){ |
| aBuf[0] = val & 0xFF; |
| aBuf[1] = (val>>8) & 0xFF; |
| } |
| |
| /* |
| ** Write a 32-bit little endiate integer into buffer aBuf. |
| */ |
| static void zipfilePutU32(u8 *aBuf, u32 val){ |
| aBuf[0] = val & 0xFF; |
| aBuf[1] = (val>>8) & 0xFF; |
| aBuf[2] = (val>>16) & 0xFF; |
| aBuf[3] = (val>>24) & 0xFF; |
| } |
| |
| #define zipfileRead32(aBuf) ( aBuf+=4, zipfileGetU32(aBuf-4) ) |
| #define zipfileRead16(aBuf) ( aBuf+=2, zipfileGetU16(aBuf-2) ) |
| |
| #define zipfileWrite32(aBuf,val) { zipfilePutU32(aBuf,val); aBuf+=4; } |
| #define zipfileWrite16(aBuf,val) { zipfilePutU16(aBuf,val); aBuf+=2; } |
| |
| /* |
| ** Magic numbers used to read CDS records. |
| */ |
| #define ZIPFILE_CDS_NFILE_OFF 28 |
| #define ZIPFILE_CDS_SZCOMPRESSED_OFF 20 |
| |
| /* |
| ** Decode the CDS record in buffer aBuf into (*pCDS). Return SQLITE_ERROR |
| ** if the record is not well-formed, or SQLITE_OK otherwise. |
| */ |
| static int zipfileReadCDS(u8 *aBuf, ZipfileCDS *pCDS){ |
| u8 *aRead = aBuf; |
| u32 sig = zipfileRead32(aRead); |
| int rc = SQLITE_OK; |
| if( sig!=ZIPFILE_SIGNATURE_CDS ){ |
| rc = SQLITE_ERROR; |
| }else{ |
| pCDS->iVersionMadeBy = zipfileRead16(aRead); |
| pCDS->iVersionExtract = zipfileRead16(aRead); |
| pCDS->flags = zipfileRead16(aRead); |
| pCDS->iCompression = zipfileRead16(aRead); |
| pCDS->mTime = zipfileRead16(aRead); |
| pCDS->mDate = zipfileRead16(aRead); |
| pCDS->crc32 = zipfileRead32(aRead); |
| pCDS->szCompressed = zipfileRead32(aRead); |
| pCDS->szUncompressed = zipfileRead32(aRead); |
| assert( aRead==&aBuf[ZIPFILE_CDS_NFILE_OFF] ); |
| pCDS->nFile = zipfileRead16(aRead); |
| pCDS->nExtra = zipfileRead16(aRead); |
| pCDS->nComment = zipfileRead16(aRead); |
| pCDS->iDiskStart = zipfileRead16(aRead); |
| pCDS->iInternalAttr = zipfileRead16(aRead); |
| pCDS->iExternalAttr = zipfileRead32(aRead); |
| pCDS->iOffset = zipfileRead32(aRead); |
| assert( aRead==&aBuf[ZIPFILE_CDS_FIXED_SZ] ); |
| } |
| |
| return rc; |
| } |
| |
| /* |
| ** Decode the LFH record in buffer aBuf into (*pLFH). Return SQLITE_ERROR |
| ** if the record is not well-formed, or SQLITE_OK otherwise. |
| */ |
| static int zipfileReadLFH( |
| u8 *aBuffer, |
| ZipfileLFH *pLFH |
| ){ |
| u8 *aRead = aBuffer; |
| int rc = SQLITE_OK; |
| |
| u32 sig = zipfileRead32(aRead); |
| if( sig!=ZIPFILE_SIGNATURE_LFH ){ |
| rc = SQLITE_ERROR; |
| }else{ |
| pLFH->iVersionExtract = zipfileRead16(aRead); |
| pLFH->flags = zipfileRead16(aRead); |
| pLFH->iCompression = zipfileRead16(aRead); |
| pLFH->mTime = zipfileRead16(aRead); |
| pLFH->mDate = zipfileRead16(aRead); |
| pLFH->crc32 = zipfileRead32(aRead); |
| pLFH->szCompressed = zipfileRead32(aRead); |
| pLFH->szUncompressed = zipfileRead32(aRead); |
| pLFH->nFile = zipfileRead16(aRead); |
| pLFH->nExtra = zipfileRead16(aRead); |
| } |
| return rc; |
| } |
| |
| |
| /* |
| ** Buffer aExtra (size nExtra bytes) contains zip archive "extra" fields. |
| ** Scan through this buffer to find an "extra-timestamp" field. If one |
| ** exists, extract the 32-bit modification-timestamp from it and store |
| ** the value in output parameter *pmTime. |
| ** |
| ** Zero is returned if no extra-timestamp record could be found (and so |
| ** *pmTime is left unchanged), or non-zero otherwise. |
| ** |
| ** The general format of an extra field is: |
| ** |
| ** Header ID 2 bytes |
| ** Data Size 2 bytes |
| ** Data N bytes |
| */ |
| static int zipfileScanExtra(u8 *aExtra, int nExtra, u32 *pmTime){ |
| int ret = 0; |
| u8 *p = aExtra; |
| u8 *pEnd = &aExtra[nExtra]; |
| |
| while( p<pEnd ){ |
| u16 id = zipfileRead16(p); |
| u16 nByte = zipfileRead16(p); |
| |
| switch( id ){ |
| case ZIPFILE_EXTRA_TIMESTAMP: { |
| u8 b = p[0]; |
| if( b & 0x01 ){ /* 0x01 -> modtime is present */ |
| *pmTime = zipfileGetU32(&p[1]); |
| ret = 1; |
| } |
| break; |
| } |
| } |
| |
| p += nByte; |
| } |
| return ret; |
| } |
| |
| /* |
| ** Convert the standard MS-DOS timestamp stored in the mTime and mDate |
| ** fields of the CDS structure passed as the only argument to a 32-bit |
| ** UNIX seconds-since-the-epoch timestamp. Return the result. |
| ** |
| ** "Standard" MS-DOS time format: |
| ** |
| ** File modification time: |
| ** Bits 00-04: seconds divided by 2 |
| ** Bits 05-10: minute |
| ** Bits 11-15: hour |
| ** File modification date: |
| ** Bits 00-04: day |
| ** Bits 05-08: month (1-12) |
| ** Bits 09-15: years from 1980 |
| ** |
| ** https://msdn.microsoft.com/en-us/library/9kkf9tah.aspx |
| */ |
| static u32 zipfileMtime(ZipfileCDS *pCDS){ |
| int Y = (1980 + ((pCDS->mDate >> 9) & 0x7F)); |
| int M = ((pCDS->mDate >> 5) & 0x0F); |
| int D = (pCDS->mDate & 0x1F); |
| int B = -13; |
| |
| int sec = (pCDS->mTime & 0x1F)*2; |
| int min = (pCDS->mTime >> 5) & 0x3F; |
| int hr = (pCDS->mTime >> 11) & 0x1F; |
| i64 JD; |
| |
| /* JD = INT(365.25 * (Y+4716)) + INT(30.6001 * (M+1)) + D + B - 1524.5 */ |
| |
| /* Calculate the JD in seconds for noon on the day in question */ |
| if( M<3 ){ |
| Y = Y-1; |
| M = M+12; |
| } |
| JD = (i64)(24*60*60) * ( |
| (int)(365.25 * (Y + 4716)) |
| + (int)(30.6001 * (M + 1)) |
| + D + B - 1524 |
| ); |
| |
| /* Correct the JD for the time within the day */ |
| JD += (hr-12) * 3600 + min * 60 + sec; |
| |
| /* Convert JD to unix timestamp (the JD epoch is 2440587.5) */ |
| return (u32)(JD - (i64)(24405875) * 24*60*6); |
| } |
| |
| /* |
| ** The opposite of zipfileMtime(). This function populates the mTime and |
| ** mDate fields of the CDS structure passed as the first argument according |
| ** to the UNIX timestamp value passed as the second. |
| */ |
| static void zipfileMtimeToDos(ZipfileCDS *pCds, u32 mUnixTime){ |
| /* Convert unix timestamp to JD (2440588 is noon on 1/1/1970) */ |
| i64 JD = (i64)2440588 + mUnixTime / (24*60*60); |
| |
| int A, B, C, D, E; |
| int yr, mon, day; |
| int hr, min, sec; |
| |
| A = (int)((JD - 1867216.25)/36524.25); |
| A = (int)(JD + 1 + A - (A/4)); |
| B = A + 1524; |
| C = (int)((B - 122.1)/365.25); |
| D = (36525*(C&32767))/100; |
| E = (int)((B-D)/30.6001); |
| |
| day = B - D - (int)(30.6001*E); |
| mon = (E<14 ? E-1 : E-13); |
| yr = mon>2 ? C-4716 : C-4715; |
| |
| hr = (mUnixTime % (24*60*60)) / (60*60); |
| min = (mUnixTime % (60*60)) / 60; |
| sec = (mUnixTime % 60); |
| |
| if( yr>=1980 ){ |
| pCds->mDate = (u16)(day + (mon << 5) + ((yr-1980) << 9)); |
| pCds->mTime = (u16)(sec/2 + (min<<5) + (hr<<11)); |
| }else{ |
| pCds->mDate = pCds->mTime = 0; |
| } |
| |
| assert( mUnixTime<315507600 |
| || mUnixTime==zipfileMtime(pCds) |
| || ((mUnixTime % 2) && mUnixTime-1==zipfileMtime(pCds)) |
| /* || (mUnixTime % 2) */ |
| ); |
| } |
| |
| /* |
| ** If aBlob is not NULL, then it is a pointer to a buffer (nBlob bytes in |
| ** size) containing an entire zip archive image. Or, if aBlob is NULL, |
| ** then pFile is a file-handle open on a zip file. In either case, this |
| ** function creates a ZipfileEntry object based on the zip archive entry |
| ** for which the CDS record is at offset iOff. |
| ** |
| ** If successful, SQLITE_OK is returned and (*ppEntry) set to point to |
| ** the new object. Otherwise, an SQLite error code is returned and the |
| ** final value of (*ppEntry) undefined. |
| */ |
| static int zipfileGetEntry( |
| ZipfileTab *pTab, /* Store any error message here */ |
| const u8 *aBlob, /* Pointer to in-memory file image */ |
| int nBlob, /* Size of aBlob[] in bytes */ |
| FILE *pFile, /* If aBlob==0, read from this file */ |
| i64 iOff, /* Offset of CDS record */ |
| ZipfileEntry **ppEntry /* OUT: Pointer to new object */ |
| ){ |
| u8 *aRead; |
| char **pzErr = &pTab->base.zErrMsg; |
| int rc = SQLITE_OK; |
| |
| if( aBlob==0 ){ |
| aRead = pTab->aBuffer; |
| rc = zipfileReadData(pFile, aRead, ZIPFILE_CDS_FIXED_SZ, iOff, pzErr); |
| }else{ |
| aRead = (u8*)&aBlob[iOff]; |
| } |
| |
| if( rc==SQLITE_OK ){ |
| sqlite3_int64 nAlloc; |
| ZipfileEntry *pNew; |
| |
| int nFile = zipfileGetU16(&aRead[ZIPFILE_CDS_NFILE_OFF]); |
| int nExtra = zipfileGetU16(&aRead[ZIPFILE_CDS_NFILE_OFF+2]); |
| nExtra += zipfileGetU16(&aRead[ZIPFILE_CDS_NFILE_OFF+4]); |
| |
| nAlloc = sizeof(ZipfileEntry) + nExtra; |
| if( aBlob ){ |
| nAlloc += zipfileGetU32(&aRead[ZIPFILE_CDS_SZCOMPRESSED_OFF]); |
| } |
| |
| pNew = (ZipfileEntry*)sqlite3_malloc64(nAlloc); |
| if( pNew==0 ){ |
| rc = SQLITE_NOMEM; |
| }else{ |
| memset(pNew, 0, sizeof(ZipfileEntry)); |
| rc = zipfileReadCDS(aRead, &pNew->cds); |
| if( rc!=SQLITE_OK ){ |
| *pzErr = sqlite3_mprintf("failed to read CDS at offset %lld", iOff); |
| }else if( aBlob==0 ){ |
| rc = zipfileReadData( |
| pFile, aRead, nExtra+nFile, iOff+ZIPFILE_CDS_FIXED_SZ, pzErr |
| ); |
| }else{ |
| aRead = (u8*)&aBlob[iOff + ZIPFILE_CDS_FIXED_SZ]; |
| } |
| } |
| |
| if( rc==SQLITE_OK ){ |
| u32 *pt = &pNew->mUnixTime; |
| pNew->cds.zFile = sqlite3_mprintf("%.*s", nFile, aRead); |
| pNew->aExtra = (u8*)&pNew[1]; |
| memcpy(pNew->aExtra, &aRead[nFile], nExtra); |
| if( pNew->cds.zFile==0 ){ |
| rc = SQLITE_NOMEM; |
| }else if( 0==zipfileScanExtra(&aRead[nFile], pNew->cds.nExtra, pt) ){ |
| pNew->mUnixTime = zipfileMtime(&pNew->cds); |
| } |
| } |
| |
| if( rc==SQLITE_OK ){ |
| static const int szFix = ZIPFILE_LFH_FIXED_SZ; |
| ZipfileLFH lfh; |
| if( pFile ){ |
| rc = zipfileReadData(pFile, aRead, szFix, pNew->cds.iOffset, pzErr); |
| }else{ |
| aRead = (u8*)&aBlob[pNew->cds.iOffset]; |
| } |
| |
| rc = zipfileReadLFH(aRead, &lfh); |
| if( rc==SQLITE_OK ){ |
| pNew->iDataOff = pNew->cds.iOffset + ZIPFILE_LFH_FIXED_SZ; |
| pNew->iDataOff += lfh.nFile + lfh.nExtra; |
| if( aBlob && pNew->cds.szCompressed ){ |
| pNew->aData = &pNew->aExtra[nExtra]; |
| memcpy(pNew->aData, &aBlob[pNew->iDataOff], pNew->cds.szCompressed); |
| } |
| }else{ |
| *pzErr = sqlite3_mprintf("failed to read LFH at offset %d", |
| (int)pNew->cds.iOffset |
| ); |
| } |
| } |
| |
| if( rc!=SQLITE_OK ){ |
| zipfileEntryFree(pNew); |
| }else{ |
| *ppEntry = pNew; |
| } |
| } |
| |
| return rc; |
| } |
| |
| /* |
| ** Advance an ZipfileCsr to its next row of output. |
| */ |
| static int zipfileNext(sqlite3_vtab_cursor *cur){ |
| ZipfileCsr *pCsr = (ZipfileCsr*)cur; |
| int rc = SQLITE_OK; |
| |
| if( pCsr->pFile ){ |
| i64 iEof = pCsr->eocd.iOffset + pCsr->eocd.nSize; |
| zipfileEntryFree(pCsr->pCurrent); |
| pCsr->pCurrent = 0; |
| if( pCsr->iNextOff>=iEof ){ |
| pCsr->bEof = 1; |
| }else{ |
| ZipfileEntry *p = 0; |
| ZipfileTab *pTab = (ZipfileTab*)(cur->pVtab); |
| rc = zipfileGetEntry(pTab, 0, 0, pCsr->pFile, pCsr->iNextOff, &p); |
| if( rc==SQLITE_OK ){ |
| pCsr->iNextOff += ZIPFILE_CDS_FIXED_SZ; |
| pCsr->iNextOff += (int)p->cds.nExtra + p->cds.nFile + p->cds.nComment; |
| } |
| pCsr->pCurrent = p; |
| } |
| }else{ |
| if( !pCsr->bNoop ){ |
| pCsr->pCurrent = pCsr->pCurrent->pNext; |
| } |
| if( pCsr->pCurrent==0 ){ |
| pCsr->bEof = 1; |
| } |
| } |
| |
| pCsr->bNoop = 0; |
| return rc; |
| } |
| |
| static void zipfileFree(void *p) { |
| sqlite3_free(p); |
| } |
| |
| /* |
| ** Buffer aIn (size nIn bytes) contains compressed data. Uncompressed, the |
| ** size is nOut bytes. This function uncompresses the data and sets the |
| ** return value in context pCtx to the result (a blob). |
| ** |
| ** If an error occurs, an error code is left in pCtx instead. |
| */ |
| static void zipfileInflate( |
| sqlite3_context *pCtx, /* Store result here */ |
| const u8 *aIn, /* Compressed data */ |
| int nIn, /* Size of buffer aIn[] in bytes */ |
| int nOut /* Expected output size */ |
| ){ |
| u8 *aRes = sqlite3_malloc(nOut); |
| if( aRes==0 ){ |
| sqlite3_result_error_nomem(pCtx); |
| }else{ |
| int err; |
| z_stream str; |
| memset(&str, 0, sizeof(str)); |
| |
| str.next_in = (Byte*)aIn; |
| str.avail_in = nIn; |
| str.next_out = (Byte*)aRes; |
| str.avail_out = nOut; |
| |
| err = inflateInit2(&str, -15); |
| if( err!=Z_OK ){ |
| zipfileCtxErrorMsg(pCtx, "inflateInit2() failed (%d)", err); |
| }else{ |
| err = inflate(&str, Z_NO_FLUSH); |
| if( err!=Z_STREAM_END ){ |
| zipfileCtxErrorMsg(pCtx, "inflate() failed (%d)", err); |
| }else{ |
| sqlite3_result_blob(pCtx, aRes, nOut, zipfileFree); |
| aRes = 0; |
| } |
| } |
| sqlite3_free(aRes); |
| inflateEnd(&str); |
| } |
| } |
| |
| /* |
| ** Buffer aIn (size nIn bytes) contains uncompressed data. This function |
| ** compresses it and sets (*ppOut) to point to a buffer containing the |
| ** compressed data. The caller is responsible for eventually calling |
| ** sqlite3_free() to release buffer (*ppOut). Before returning, (*pnOut) |
| ** is set to the size of buffer (*ppOut) in bytes. |
| ** |
| ** If no error occurs, SQLITE_OK is returned. Otherwise, an SQLite error |
| ** code is returned and an error message left in virtual-table handle |
| ** pTab. The values of (*ppOut) and (*pnOut) are left unchanged in this |
| ** case. |
| */ |
| static int zipfileDeflate( |
| const u8 *aIn, int nIn, /* Input */ |
| u8 **ppOut, int *pnOut, /* Output */ |
| char **pzErr /* OUT: Error message */ |
| ){ |
| sqlite3_int64 nAlloc = compressBound(nIn); |
| u8 *aOut; |
| int rc = SQLITE_OK; |
| |
| aOut = (u8*)sqlite3_malloc64(nAlloc); |
| if( aOut==0 ){ |
| rc = SQLITE_NOMEM; |
| }else{ |
| int res; |
| z_stream str; |
| memset(&str, 0, sizeof(str)); |
| str.next_in = (Bytef*)aIn; |
| str.avail_in = nIn; |
| str.next_out = aOut; |
| str.avail_out = nAlloc; |
| |
| deflateInit2(&str, 9, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY); |
| res = deflate(&str, Z_FINISH); |
| |
| if( res==Z_STREAM_END ){ |
| *ppOut = aOut; |
| *pnOut = (int)str.total_out; |
| }else{ |
| sqlite3_free(aOut); |
| *pzErr = sqlite3_mprintf("zipfile: deflate() error"); |
| rc = SQLITE_ERROR; |
| } |
| deflateEnd(&str); |
| } |
| |
| return rc; |
| } |
| |
| |
| /* |
| ** Return values of columns for the row at which the series_cursor |
| ** is currently pointing. |
| */ |
| static int zipfileColumn( |
| sqlite3_vtab_cursor *cur, /* The cursor */ |
| sqlite3_context *ctx, /* First argument to sqlite3_result_...() */ |
| int i /* Which column to return */ |
| ){ |
| ZipfileCsr *pCsr = (ZipfileCsr*)cur; |
| ZipfileCDS *pCDS = &pCsr->pCurrent->cds; |
| int rc = SQLITE_OK; |
| switch( i ){ |
| case 0: /* name */ |
| sqlite3_result_text(ctx, pCDS->zFile, -1, SQLITE_TRANSIENT); |
| break; |
| case 1: /* mode */ |
| /* TODO: Whether or not the following is correct surely depends on |
| ** the platform on which the archive was created. */ |
| sqlite3_result_int(ctx, pCDS->iExternalAttr >> 16); |
| break; |
| case 2: { /* mtime */ |
| sqlite3_result_int64(ctx, pCsr->pCurrent->mUnixTime); |
| break; |
| } |
| case 3: { /* sz */ |
| if( sqlite3_vtab_nochange(ctx)==0 ){ |
| sqlite3_result_int64(ctx, pCDS->szUncompressed); |
| } |
| break; |
| } |
| case 4: /* rawdata */ |
| if( sqlite3_vtab_nochange(ctx) ) break; |
| case 5: { /* data */ |
| if( i==4 || pCDS->iCompression==0 || pCDS->iCompression==8 ){ |
| int sz = pCDS->szCompressed; |
| int szFinal = pCDS->szUncompressed; |
| if( szFinal>0 ){ |
| u8 *aBuf; |
| u8 *aFree = 0; |
| if( pCsr->pCurrent->aData ){ |
| aBuf = pCsr->pCurrent->aData; |
| }else{ |
| aBuf = aFree = sqlite3_malloc64(sz); |
| if( aBuf==0 ){ |
| rc = SQLITE_NOMEM; |
| }else{ |
| FILE *pFile = pCsr->pFile; |
| if( pFile==0 ){ |
| pFile = ((ZipfileTab*)(pCsr->base.pVtab))->pWriteFd; |
| } |
| rc = zipfileReadData(pFile, aBuf, sz, pCsr->pCurrent->iDataOff, |
| &pCsr->base.pVtab->zErrMsg |
| ); |
| } |
| } |
| if( rc==SQLITE_OK ){ |
| if( i==5 && pCDS->iCompression ){ |
| zipfileInflate(ctx, aBuf, sz, szFinal); |
| }else{ |
| sqlite3_result_blob(ctx, aBuf, sz, SQLITE_TRANSIENT); |
| } |
| } |
| sqlite3_free(aFree); |
| }else{ |
| /* Figure out if this is a directory or a zero-sized file. Consider |
| ** it to be a directory either if the mode suggests so, or if |
| ** the final character in the name is '/'. */ |
| u32 mode = pCDS->iExternalAttr >> 16; |
| if( !(mode & S_IFDIR) && pCDS->zFile[pCDS->nFile-1]!='/' ){ |
| sqlite3_result_blob(ctx, "", 0, SQLITE_STATIC); |
| } |
| } |
| } |
| break; |
| } |
| case 6: /* method */ |
| sqlite3_result_int(ctx, pCDS->iCompression); |
| break; |
| default: /* z */ |
| assert( i==7 ); |
| sqlite3_result_int64(ctx, pCsr->iId); |
| break; |
| } |
| |
| return rc; |
| } |
| |
| /* |
| ** Return TRUE if the cursor is at EOF. |
| */ |
| static int zipfileEof(sqlite3_vtab_cursor *cur){ |
| ZipfileCsr *pCsr = (ZipfileCsr*)cur; |
| return pCsr->bEof; |
| } |
| |
| /* |
| ** If aBlob is not NULL, then it points to a buffer nBlob bytes in size |
| ** containing an entire zip archive image. Or, if aBlob is NULL, then pFile |
| ** is guaranteed to be a file-handle open on a zip file. |
| ** |
| ** This function attempts to locate the EOCD record within the zip archive |
| ** and populate *pEOCD with the results of decoding it. SQLITE_OK is |
| ** returned if successful. Otherwise, an SQLite error code is returned and |
| ** an English language error message may be left in virtual-table pTab. |
| */ |
| static int zipfileReadEOCD( |
| ZipfileTab *pTab, /* Return errors here */ |
| const u8 *aBlob, /* Pointer to in-memory file image */ |
| int nBlob, /* Size of aBlob[] in bytes */ |
| FILE *pFile, /* Read from this file if aBlob==0 */ |
| ZipfileEOCD *pEOCD /* Object to populate */ |
| ){ |
| u8 *aRead = pTab->aBuffer; /* Temporary buffer */ |
| int nRead; /* Bytes to read from file */ |
| int rc = SQLITE_OK; |
| |
| if( aBlob==0 ){ |
| i64 iOff; /* Offset to read from */ |
| i64 szFile; /* Total size of file in bytes */ |
| fseek(pFile, 0, SEEK_END); |
| szFile = (i64)ftell(pFile); |
| if( szFile==0 ){ |
| memset(pEOCD, 0, sizeof(ZipfileEOCD)); |
| return SQLITE_OK; |
| } |
| nRead = (int)(MIN(szFile, ZIPFILE_BUFFER_SIZE)); |
| iOff = szFile - nRead; |
| rc = zipfileReadData(pFile, aRead, nRead, iOff, &pTab->base.zErrMsg); |
| }else{ |
| nRead = (int)(MIN(nBlob, ZIPFILE_BUFFER_SIZE)); |
| aRead = (u8*)&aBlob[nBlob-nRead]; |
| } |
| |
| if( rc==SQLITE_OK ){ |
| int i; |
| |
| /* Scan backwards looking for the signature bytes */ |
| for(i=nRead-20; i>=0; i--){ |
| if( aRead[i]==0x50 && aRead[i+1]==0x4b |
| && aRead[i+2]==0x05 && aRead[i+3]==0x06 |
| ){ |
| break; |
| } |
| } |
| if( i<0 ){ |
| pTab->base.zErrMsg = sqlite3_mprintf( |
| "cannot find end of central directory record" |
| ); |
| return SQLITE_ERROR; |
| } |
| |
| aRead += i+4; |
| pEOCD->iDisk = zipfileRead16(aRead); |
| pEOCD->iFirstDisk = zipfileRead16(aRead); |
| pEOCD->nEntry = zipfileRead16(aRead); |
| pEOCD->nEntryTotal = zipfileRead16(aRead); |
| pEOCD->nSize = zipfileRead32(aRead); |
| pEOCD->iOffset = zipfileRead32(aRead); |
| } |
| |
| return rc; |
| } |
| |
| /* |
| ** Add object pNew to the linked list that begins at ZipfileTab.pFirstEntry |
| ** and ends with pLastEntry. If argument pBefore is NULL, then pNew is added |
| ** to the end of the list. Otherwise, it is added to the list immediately |
| ** before pBefore (which is guaranteed to be a part of said list). |
| */ |
| static void zipfileAddEntry( |
| ZipfileTab *pTab, |
| ZipfileEntry *pBefore, |
| ZipfileEntry *pNew |
| ){ |
| assert( (pTab->pFirstEntry==0)==(pTab->pLastEntry==0) ); |
| assert( pNew->pNext==0 ); |
| if( pBefore==0 ){ |
| if( pTab->pFirstEntry==0 ){ |
| pTab->pFirstEntry = pTab->pLastEntry = pNew; |
| }else{ |
| assert( pTab->pLastEntry->pNext==0 ); |
| pTab->pLastEntry->pNext = pNew; |
| pTab->pLastEntry = pNew; |
| } |
| }else{ |
| ZipfileEntry **pp; |
| for(pp=&pTab->pFirstEntry; *pp!=pBefore; pp=&((*pp)->pNext)); |
| pNew->pNext = pBefore; |
| *pp = pNew; |
| } |
| } |
| |
| static int zipfileLoadDirectory(ZipfileTab *pTab, const u8 *aBlob, int nBlob){ |
| ZipfileEOCD eocd; |
| int rc; |
| int i; |
| i64 iOff; |
| |
| rc = zipfileReadEOCD(pTab, aBlob, nBlob, pTab->pWriteFd, &eocd); |
| iOff = eocd.iOffset; |
| for(i=0; rc==SQLITE_OK && i<eocd.nEntry; i++){ |
| ZipfileEntry *pNew = 0; |
| rc = zipfileGetEntry(pTab, aBlob, nBlob, pTab->pWriteFd, iOff, &pNew); |
| |
| if( rc==SQLITE_OK ){ |
| zipfileAddEntry(pTab, 0, pNew); |
| iOff += ZIPFILE_CDS_FIXED_SZ; |
| iOff += (int)pNew->cds.nExtra + pNew->cds.nFile + pNew->cds.nComment; |
| } |
| } |
| return rc; |
| } |
| |
| /* |
| ** xFilter callback. |
| */ |
| static int zipfileFilter( |
| sqlite3_vtab_cursor *cur, |
| int idxNum, const char *idxStr, |
| int argc, sqlite3_value **argv |
| ){ |
| ZipfileTab *pTab = (ZipfileTab*)cur->pVtab; |
| ZipfileCsr *pCsr = (ZipfileCsr*)cur; |
| const char *zFile = 0; /* Zip file to scan */ |
| int rc = SQLITE_OK; /* Return Code */ |
| int bInMemory = 0; /* True for an in-memory zipfile */ |
| |
| zipfileResetCursor(pCsr); |
| |
| if( pTab->zFile ){ |
| zFile = pTab->zFile; |
| }else if( idxNum==0 ){ |
| zipfileCursorErr(pCsr, "zipfile() function requires an argument"); |
| return SQLITE_ERROR; |
| }else if( sqlite3_value_type(argv[0])==SQLITE_BLOB ){ |
| const u8 *aBlob = (const u8*)sqlite3_value_blob(argv[0]); |
| int nBlob = sqlite3_value_bytes(argv[0]); |
| assert( pTab->pFirstEntry==0 ); |
| rc = zipfileLoadDirectory(pTab, aBlob, nBlob); |
| pCsr->pFreeEntry = pTab->pFirstEntry; |
| pTab->pFirstEntry = pTab->pLastEntry = 0; |
| if( rc!=SQLITE_OK ) return rc; |
| bInMemory = 1; |
| }else{ |
| zFile = (const char*)sqlite3_value_text(argv[0]); |
| } |
| |
| if( 0==pTab->pWriteFd && 0==bInMemory ){ |
| pCsr->pFile = fopen(zFile, "rb"); |
| if( pCsr->pFile==0 ){ |
| zipfileCursorErr(pCsr, "cannot open file: %s", zFile); |
| rc = SQLITE_ERROR; |
| }else{ |
| rc = zipfileReadEOCD(pTab, 0, 0, pCsr->pFile, &pCsr->eocd); |
| if( rc==SQLITE_OK ){ |
| if( pCsr->eocd.nEntry==0 ){ |
| pCsr->bEof = 1; |
| }else{ |
| pCsr->iNextOff = pCsr->eocd.iOffset; |
| rc = zipfileNext(cur); |
| } |
| } |
| } |
| }else{ |
| pCsr->bNoop = 1; |
| pCsr->pCurrent = pCsr->pFreeEntry ? pCsr->pFreeEntry : pTab->pFirstEntry; |
| rc = zipfileNext(cur); |
| } |
| |
| return rc; |
| } |
| |
| /* |
| ** xBestIndex callback. |
| */ |
| static int zipfileBestIndex( |
| sqlite3_vtab *tab, |
| sqlite3_index_info *pIdxInfo |
| ){ |
| int i; |
| int idx = -1; |
| int unusable = 0; |
| |
| for(i=0; i<pIdxInfo->nConstraint; i++){ |
| const struct sqlite3_index_constraint *pCons = &pIdxInfo->aConstraint[i]; |
| if( pCons->iColumn!=ZIPFILE_F_COLUMN_IDX ) continue; |
| if( pCons->usable==0 ){ |
| unusable = 1; |
| }else if( pCons->op==SQLITE_INDEX_CONSTRAINT_EQ ){ |
| idx = i; |
| } |
| } |
| if( idx>=0 ){ |
| pIdxInfo->aConstraintUsage[idx].argvIndex = 1; |
| pIdxInfo->aConstraintUsage[idx].omit = 1; |
| pIdxInfo->estimatedCost = 1000.0; |
| pIdxInfo->idxNum = 1; |
| }else if( unusable ){ |
| return SQLITE_CONSTRAINT; |
| } |
| return SQLITE_OK; |
| } |
| |
| static ZipfileEntry *zipfileNewEntry(const char *zPath){ |
| ZipfileEntry *pNew; |
| pNew = sqlite3_malloc(sizeof(ZipfileEntry)); |
| if( pNew ){ |
| memset(pNew, 0, sizeof(ZipfileEntry)); |
| pNew->cds.zFile = sqlite3_mprintf("%s", zPath); |
| if( pNew->cds.zFile==0 ){ |
| sqlite3_free(pNew); |
| pNew = 0; |
| } |
| } |
| return pNew; |
| } |
| |
| static int zipfileSerializeLFH(ZipfileEntry *pEntry, u8 *aBuf){ |
| ZipfileCDS *pCds = &pEntry->cds; |
| u8 *a = aBuf; |
| |
| pCds->nExtra = 9; |
| |
| /* Write the LFH itself */ |
| zipfileWrite32(a, ZIPFILE_SIGNATURE_LFH); |
| zipfileWrite16(a, pCds->iVersionExtract); |
| zipfileWrite16(a, pCds->flags); |
| zipfileWrite16(a, pCds->iCompression); |
| zipfileWrite16(a, pCds->mTime); |
| zipfileWrite16(a, pCds->mDate); |
| zipfileWrite32(a, pCds->crc32); |
| zipfileWrite32(a, pCds->szCompressed); |
| zipfileWrite32(a, pCds->szUncompressed); |
| zipfileWrite16(a, (u16)pCds->nFile); |
| zipfileWrite16(a, pCds->nExtra); |
| assert( a==&aBuf[ZIPFILE_LFH_FIXED_SZ] ); |
| |
| /* Add the file name */ |
| memcpy(a, pCds->zFile, (int)pCds->nFile); |
| a += (int)pCds->nFile; |
| |
| /* The "extra" data */ |
| zipfileWrite16(a, ZIPFILE_EXTRA_TIMESTAMP); |
| zipfileWrite16(a, 5); |
| *a++ = 0x01; |
| zipfileWrite32(a, pEntry->mUnixTime); |
| |
| return a-aBuf; |
| } |
| |
| static int zipfileAppendEntry( |
| ZipfileTab *pTab, |
| ZipfileEntry *pEntry, |
| const u8 *pData, |
| int nData |
| ){ |
| u8 *aBuf = pTab->aBuffer; |
| int nBuf; |
| int rc; |
| |
| nBuf = zipfileSerializeLFH(pEntry, aBuf); |
| rc = zipfileAppendData(pTab, aBuf, nBuf); |
| if( rc==SQLITE_OK ){ |
| pEntry->iDataOff = pTab->szCurrent; |
| rc = zipfileAppendData(pTab, pData, nData); |
| } |
| |
| return rc; |
| } |
| |
| static int zipfileGetMode( |
| sqlite3_value *pVal, |
| int bIsDir, /* If true, default to directory */ |
| u32 *pMode, /* OUT: Mode value */ |
| char **pzErr /* OUT: Error message */ |
| ){ |
| const char *z = (const char*)sqlite3_value_text(pVal); |
| u32 mode = 0; |
| if( z==0 ){ |
| mode = (bIsDir ? (S_IFDIR + 0755) : (S_IFREG + 0644)); |
| }else if( z[0]>='0' && z[0]<='9' ){ |
| mode = (unsigned int)sqlite3_value_int(pVal); |
| }else{ |
| const char zTemplate[11] = "-rwxrwxrwx"; |
| int i; |
| if( strlen(z)!=10 ) goto parse_error; |
| switch( z[0] ){ |
| case '-': mode |= S_IFREG; break; |
| case 'd': mode |= S_IFDIR; break; |
| case 'l': mode |= S_IFLNK; break; |
| default: goto parse_error; |
| } |
| for(i=1; i<10; i++){ |
| if( z[i]==zTemplate[i] ) mode |= 1 << (9-i); |
| else if( z[i]!='-' ) goto parse_error; |
| } |
| } |
| if( ((mode & S_IFDIR)==0)==bIsDir ){ |
| /* The "mode" attribute is a directory, but data has been specified. |
| ** Or vice-versa - no data but "mode" is a file or symlink. */ |
| *pzErr = sqlite3_mprintf("zipfile: mode does not match data"); |
| return SQLITE_CONSTRAINT; |
| } |
| *pMode = mode; |
| return SQLITE_OK; |
| |
| parse_error: |
| *pzErr = sqlite3_mprintf("zipfile: parse error in mode: %s", z); |
| return SQLITE_ERROR; |
| } |
| |
| /* |
| ** Both (const char*) arguments point to nul-terminated strings. Argument |
| ** nB is the value of strlen(zB). This function returns 0 if the strings are |
| ** identical, ignoring any trailing '/' character in either path. */ |
| static int zipfileComparePath(const char *zA, const char *zB, int nB){ |
| int nA = (int)strlen(zA); |
| if( zA[nA-1]=='/' ) nA--; |
| if( zB[nB-1]=='/' ) nB--; |
| if( nA==nB && memcmp(zA, zB, nA)==0 ) return 0; |
| return 1; |
| } |
| |
| static int zipfileBegin(sqlite3_vtab *pVtab){ |
| ZipfileTab *pTab = (ZipfileTab*)pVtab; |
| int rc = SQLITE_OK; |
| |
| assert( pTab->pWriteFd==0 ); |
| |
| /* Open a write fd on the file. Also load the entire central directory |
| ** structure into memory. During the transaction any new file data is |
| ** appended to the archive file, but the central directory is accumulated |
| ** in main-memory until the transaction is committed. */ |
| pTab->pWriteFd = fopen(pTab->zFile, "ab+"); |
| if( pTab->pWriteFd==0 ){ |
| pTab->base.zErrMsg = sqlite3_mprintf( |
| "zipfile: failed to open file %s for writing", pTab->zFile |
| ); |
| rc = SQLITE_ERROR; |
| }else{ |
| fseek(pTab->pWriteFd, 0, SEEK_END); |
| pTab->szCurrent = pTab->szOrig = (i64)ftell(pTab->pWriteFd); |
| rc = zipfileLoadDirectory(pTab, 0, 0); |
| } |
| |
| if( rc!=SQLITE_OK ){ |
| zipfileCleanupTransaction(pTab); |
| } |
| |
| return rc; |
| } |
| |
| /* |
| ** Return the current time as a 32-bit timestamp in UNIX epoch format (like |
| ** time(2)). |
| */ |
| static u32 zipfileTime(void){ |
| sqlite3_vfs *pVfs = sqlite3_vfs_find(0); |
| u32 ret; |
| if( pVfs->iVersion>=2 && pVfs->xCurrentTimeInt64 ){ |
| i64 ms; |
| pVfs->xCurrentTimeInt64(pVfs, &ms); |
| ret = (u32)((ms/1000) - ((i64)24405875 * 8640)); |
| }else{ |
| double day; |
| pVfs->xCurrentTime(pVfs, &day); |
| ret = (u32)((day - 2440587.5) * 86400); |
| } |
| return ret; |
| } |
| |
| /* |
| ** Return a 32-bit timestamp in UNIX epoch format. |
| ** |
| ** If the value passed as the only argument is either NULL or an SQL NULL, |
| ** return the current time. Otherwise, return the value stored in (*pVal) |
| ** cast to a 32-bit unsigned integer. |
| */ |
| static u32 zipfileGetTime(sqlite3_value *pVal){ |
| if( pVal==0 || sqlite3_value_type(pVal)==SQLITE_NULL ){ |
| return zipfileTime(); |
| } |
| return (u32)sqlite3_value_int64(pVal); |
| } |
| |
| /* |
| ** Unless it is NULL, entry pOld is currently part of the pTab->pFirstEntry |
| ** linked list. Remove it from the list and free the object. |
| */ |
| static void zipfileRemoveEntryFromList(ZipfileTab *pTab, ZipfileEntry *pOld){ |
| if( pOld ){ |
| ZipfileEntry **pp; |
| for(pp=&pTab->pFirstEntry; (*pp)!=pOld; pp=&((*pp)->pNext)); |
| *pp = (*pp)->pNext; |
| zipfileEntryFree(pOld); |
| } |
| } |
| |
| /* |
| ** xUpdate method. |
| */ |
| static int zipfileUpdate( |
| sqlite3_vtab *pVtab, |
| int nVal, |
| sqlite3_value **apVal, |
| sqlite_int64 *pRowid |
| ){ |
| ZipfileTab *pTab = (ZipfileTab*)pVtab; |
| int rc = SQLITE_OK; /* Return Code */ |
| ZipfileEntry *pNew = 0; /* New in-memory CDS entry */ |
| |
| u32 mode = 0; /* Mode for new entry */ |
| u32 mTime = 0; /* Modification time for new entry */ |
| i64 sz = 0; /* Uncompressed size */ |
| const char *zPath = 0; /* Path for new entry */ |
| int nPath = 0; /* strlen(zPath) */ |
| const u8 *pData = 0; /* Pointer to buffer containing content */ |
| int nData = 0; /* Size of pData buffer in bytes */ |
| int iMethod = 0; /* Compression method for new entry */ |
| u8 *pFree = 0; /* Free this */ |
| char *zFree = 0; /* Also free this */ |
| ZipfileEntry *pOld = 0; |
| ZipfileEntry *pOld2 = 0; |
| int bUpdate = 0; /* True for an update that modifies "name" */ |
| int bIsDir = 0; |
| u32 iCrc32 = 0; |
| |
| if( pTab->pWriteFd==0 ){ |
| rc = zipfileBegin(pVtab); |
| if( rc!=SQLITE_OK ) return rc; |
| } |
| |
| /* If this is a DELETE or UPDATE, find the archive entry to delete. */ |
| if( sqlite3_value_type(apVal[0])!=SQLITE_NULL ){ |
| const char *zDelete = (const char*)sqlite3_value_text(apVal[0]); |
| int nDelete = (int)strlen(zDelete); |
| if( nVal>1 ){ |
| const char *zUpdate = (const char*)sqlite3_value_text(apVal[1]); |
| if( zUpdate && zipfileComparePath(zUpdate, zDelete, nDelete)!=0 ){ |
| bUpdate = 1; |
| } |
| } |
| for(pOld=pTab->pFirstEntry; 1; pOld=pOld->pNext){ |
| if( zipfileComparePath(pOld->cds.zFile, zDelete, nDelete)==0 ){ |
| break; |
| } |
| assert( pOld->pNext ); |
| } |
| } |
| |
| if( nVal>1 ){ |
| /* Check that "sz" and "rawdata" are both NULL: */ |
| if( sqlite3_value_type(apVal[5])!=SQLITE_NULL ){ |
| zipfileTableErr(pTab, "sz must be NULL"); |
| rc = SQLITE_CONSTRAINT; |
| } |
| if( sqlite3_value_type(apVal[6])!=SQLITE_NULL ){ |
| zipfileTableErr(pTab, "rawdata must be NULL"); |
| rc = SQLITE_CONSTRAINT; |
| } |
| |
| if( rc==SQLITE_OK ){ |
| if( sqlite3_value_type(apVal[7])==SQLITE_NULL ){ |
| /* data=NULL. A directory */ |
| bIsDir = 1; |
| }else{ |
| /* Value specified for "data", and possibly "method". This must be |
| ** a regular file or a symlink. */ |
| const u8 *aIn = sqlite3_value_blob(apVal[7]); |
| int nIn = sqlite3_value_bytes(apVal[7]); |
| int bAuto = sqlite3_value_type(apVal[8])==SQLITE_NULL; |
| |
| iMethod = sqlite3_value_int(apVal[8]); |
| sz = nIn; |
| pData = aIn; |
| nData = nIn; |
| if( iMethod!=0 && iMethod!=8 ){ |
| zipfileTableErr(pTab, "unknown compression method: %d", iMethod); |
| rc = SQLITE_CONSTRAINT; |
| }else{ |
| if( bAuto || iMethod ){ |
| int nCmp; |
| rc = zipfileDeflate(aIn, nIn, &pFree, &nCmp, &pTab->base.zErrMsg); |
| if( rc==SQLITE_OK ){ |
| if( iMethod || nCmp<nIn ){ |
| iMethod = 8; |
| pData = pFree; |
| nData = nCmp; |
| } |
| } |
| } |
| iCrc32 = crc32(0, aIn, nIn); |
| } |
| } |
| } |
| |
| if( rc==SQLITE_OK ){ |
| rc = zipfileGetMode(apVal[3], bIsDir, &mode, &pTab->base.zErrMsg); |
| } |
| |
| if( rc==SQLITE_OK ){ |
| zPath = (const char*)sqlite3_value_text(apVal[2]); |
| nPath = (int)strlen(zPath); |
| mTime = zipfileGetTime(apVal[4]); |
| } |
| |
| if( rc==SQLITE_OK && bIsDir ){ |
| /* For a directory, check that the last character in the path is a |
| ** '/'. This appears to be required for compatibility with info-zip |
| ** (the unzip command on unix). It does not create directories |
| ** otherwise. */ |
| if( zPath[nPath-1]!='/' ){ |
| zFree = sqlite3_mprintf("%s/", zPath); |
| if( zFree==0 ){ rc = SQLITE_NOMEM; } |
| zPath = (const char*)zFree; |
| nPath++; |
| } |
| } |
| |
| /* Check that we're not inserting a duplicate entry -OR- updating an |
| ** entry with a path, thereby making it into a duplicate. */ |
| if( (pOld==0 || bUpdate) && rc==SQLITE_OK ){ |
| ZipfileEntry *p; |
| for(p=pTab->pFirstEntry; p; p=p->pNext){ |
| if( zipfileComparePath(p->cds.zFile, zPath, nPath)==0 ){ |
| switch( sqlite3_vtab_on_conflict(pTab->db) ){ |
| case SQLITE_IGNORE: { |
| goto zipfile_update_done; |
| } |
| case SQLITE_REPLACE: { |
| pOld2 = p; |
| break; |
| } |
| default: { |
| zipfileTableErr(pTab, "duplicate name: \"%s\"", zPath); |
| rc = SQLITE_CONSTRAINT; |
| break; |
| } |
| } |
| break; |
| } |
| } |
| } |
| |
| if( rc==SQLITE_OK ){ |
| /* Create the new CDS record. */ |
| pNew = zipfileNewEntry(zPath); |
| if( pNew==0 ){ |
| rc = SQLITE_NOMEM; |
| }else{ |
| pNew->cds.iVersionMadeBy = ZIPFILE_NEWENTRY_MADEBY; |
| pNew->cds.iVersionExtract = ZIPFILE_NEWENTRY_REQUIRED; |
| pNew->cds.flags = ZIPFILE_NEWENTRY_FLAGS; |
| pNew->cds.iCompression = (u16)iMethod; |
| zipfileMtimeToDos(&pNew->cds, mTime); |
| pNew->cds.crc32 = iCrc32; |
| pNew->cds.szCompressed = nData; |
| pNew->cds.szUncompressed = (u32)sz; |
| pNew->cds.iExternalAttr = (mode<<16); |
| pNew->cds.iOffset = (u32)pTab->szCurrent; |
| pNew->cds.nFile = (u16)nPath; |
| pNew->mUnixTime = (u32)mTime; |
| rc = zipfileAppendEntry(pTab, pNew, pData, nData); |
| zipfileAddEntry(pTab, pOld, pNew); |
| } |
| } |
| } |
| |
| if( rc==SQLITE_OK && (pOld || pOld2) ){ |
| ZipfileCsr *pCsr; |
| for(pCsr=pTab->pCsrList; pCsr; pCsr=pCsr->pCsrNext){ |
| if( pCsr->pCurrent && (pCsr->pCurrent==pOld || pCsr->pCurrent==pOld2) ){ |
| pCsr->pCurrent = pCsr->pCurrent->pNext; |
| pCsr->bNoop = 1; |
| } |
| } |
| |
| zipfileRemoveEntryFromList(pTab, pOld); |
| zipfileRemoveEntryFromList(pTab, pOld2); |
| } |
| |
| zipfile_update_done: |
| sqlite3_free(pFree); |
| sqlite3_free(zFree); |
| return rc; |
| } |
| |
| static int zipfileSerializeEOCD(ZipfileEOCD *p, u8 *aBuf){ |
| u8 *a = aBuf; |
| zipfileWrite32(a, ZIPFILE_SIGNATURE_EOCD); |
| zipfileWrite16(a, p->iDisk); |
| zipfileWrite16(a, p->iFirstDisk); |
| zipfileWrite16(a, p->nEntry); |
| zipfileWrite16(a, p->nEntryTotal); |
| zipfileWrite32(a, p->nSize); |
| zipfileWrite32(a, p->iOffset); |
| zipfileWrite16(a, 0); /* Size of trailing comment in bytes*/ |
| |
| return a-aBuf; |
| } |
| |
| static int zipfileAppendEOCD(ZipfileTab *pTab, ZipfileEOCD *p){ |
| int nBuf = zipfileSerializeEOCD(p, pTab->aBuffer); |
| assert( nBuf==ZIPFILE_EOCD_FIXED_SZ ); |
| return zipfileAppendData(pTab, pTab->aBuffer, nBuf); |
| } |
| |
| /* |
| ** Serialize the CDS structure into buffer aBuf[]. Return the number |
| ** of bytes written. |
| */ |
| static int zipfileSerializeCDS(ZipfileEntry *pEntry, u8 *aBuf){ |
| u8 *a = aBuf; |
| ZipfileCDS *pCDS = &pEntry->cds; |
| |
| if( pEntry->aExtra==0 ){ |
| pCDS->nExtra = 9; |
| } |
| |
| zipfileWrite32(a, ZIPFILE_SIGNATURE_CDS); |
| zipfileWrite16(a, pCDS->iVersionMadeBy); |
| zipfileWrite16(a, pCDS->iVersionExtract); |
| zipfileWrite16(a, pCDS->flags); |
| zipfileWrite16(a, pCDS->iCompression); |
| zipfileWrite16(a, pCDS->mTime); |
| zipfileWrite16(a, pCDS->mDate); |
| zipfileWrite32(a, pCDS->crc32); |
| zipfileWrite32(a, pCDS->szCompressed); |
| zipfileWrite32(a, pCDS->szUncompressed); |
| assert( a==&aBuf[ZIPFILE_CDS_NFILE_OFF] ); |
| zipfileWrite16(a, pCDS->nFile); |
| zipfileWrite16(a, pCDS->nExtra); |
| zipfileWrite16(a, pCDS->nComment); |
| zipfileWrite16(a, pCDS->iDiskStart); |
| zipfileWrite16(a, pCDS->iInternalAttr); |
| zipfileWrite32(a, pCDS->iExternalAttr); |
| zipfileWrite32(a, pCDS->iOffset); |
| |
| memcpy(a, pCDS->zFile, pCDS->nFile); |
| a += pCDS->nFile; |
| |
| if( pEntry->aExtra ){ |
| int n = (int)pCDS->nExtra + (int)pCDS->nComment; |
| memcpy(a, pEntry->aExtra, n); |
| a += n; |
| }else{ |
| assert( pCDS->nExtra==9 ); |
| zipfileWrite16(a, ZIPFILE_EXTRA_TIMESTAMP); |
| zipfileWrite16(a, 5); |
| *a++ = 0x01; |
| zipfileWrite32(a, pEntry->mUnixTime); |
| } |
| |
| return a-aBuf; |
| } |
| |
| static int zipfileCommit(sqlite3_vtab *pVtab){ |
| ZipfileTab *pTab = (ZipfileTab*)pVtab; |
| int rc = SQLITE_OK; |
| if( pTab->pWriteFd ){ |
| i64 iOffset = pTab->szCurrent; |
| ZipfileEntry *p; |
| ZipfileEOCD eocd; |
| int nEntry = 0; |
| |
| /* Write out all entries */ |
| for(p=pTab->pFirstEntry; rc==SQLITE_OK && p; p=p->pNext){ |
| int n = zipfileSerializeCDS(p, pTab->aBuffer); |
| rc = zipfileAppendData(pTab, pTab->aBuffer, n); |
| nEntry++; |
| } |
| |
| /* Write out the EOCD record */ |
| eocd.iDisk = 0; |
| eocd.iFirstDisk = 0; |
| eocd.nEntry = (u16)nEntry; |
| eocd.nEntryTotal = (u16)nEntry; |
| eocd.nSize = (u32)(pTab->szCurrent - iOffset); |
| eocd.iOffset = (u32)iOffset; |
| rc = zipfileAppendEOCD(pTab, &eocd); |
| |
| zipfileCleanupTransaction(pTab); |
| } |
| return rc; |
| } |
| |
| static int zipfileRollback(sqlite3_vtab *pVtab){ |
| return zipfileCommit(pVtab); |
| } |
| |
| static ZipfileCsr *zipfileFindCursor(ZipfileTab *pTab, i64 iId){ |
| ZipfileCsr *pCsr; |
| for(pCsr=pTab->pCsrList; pCsr; pCsr=pCsr->pCsrNext){ |
| if( iId==pCsr->iId ) break; |
| } |
| return pCsr; |
| } |
| |
| static void zipfileFunctionCds( |
| sqlite3_context *context, |
| int argc, |
| sqlite3_value **argv |
| ){ |
| ZipfileCsr *pCsr; |
| ZipfileTab *pTab = (ZipfileTab*)sqlite3_user_data(context); |
| assert( argc>0 ); |
| |
| pCsr = zipfileFindCursor(pTab, sqlite3_value_int64(argv[0])); |
| if( pCsr ){ |
| ZipfileCDS *p = &pCsr->pCurrent->cds; |
| char *zRes = sqlite3_mprintf("{" |
| "\"version-made-by\" : %u, " |
| "\"version-to-extract\" : %u, " |
| "\"flags\" : %u, " |
| "\"compression\" : %u, " |
| "\"time\" : %u, " |
| "\"date\" : %u, " |
| "\"crc32\" : %u, " |
| "\"compressed-size\" : %u, " |
| "\"uncompressed-size\" : %u, " |
| "\"file-name-length\" : %u, " |
| "\"extra-field-length\" : %u, " |
| "\"file-comment-length\" : %u, " |
| "\"disk-number-start\" : %u, " |
| "\"internal-attr\" : %u, " |
| "\"external-attr\" : %u, " |
| "\"offset\" : %u }", |
| (u32)p->iVersionMadeBy, (u32)p->iVersionExtract, |
| (u32)p->flags, (u32)p->iCompression, |
| (u32)p->mTime, (u32)p->mDate, |
| (u32)p->crc32, (u32)p->szCompressed, |
| (u32)p->szUncompressed, (u32)p->nFile, |
| (u32)p->nExtra, (u32)p->nComment, |
| (u32)p->iDiskStart, (u32)p->iInternalAttr, |
| (u32)p->iExternalAttr, (u32)p->iOffset |
| ); |
| |
| if( zRes==0 ){ |
| sqlite3_result_error_nomem(context); |
| }else{ |
| sqlite3_result_text(context, zRes, -1, SQLITE_TRANSIENT); |
| sqlite3_free(zRes); |
| } |
| } |
| } |
| |
| /* |
| ** xFindFunction method. |
| */ |
| static int zipfileFindFunction( |
| sqlite3_vtab *pVtab, /* Virtual table handle */ |
| int nArg, /* Number of SQL function arguments */ |
| const char *zName, /* Name of SQL function */ |
| void (**pxFunc)(sqlite3_context*,int,sqlite3_value**), /* OUT: Result */ |
| void **ppArg /* OUT: User data for *pxFunc */ |
| ){ |
| if( sqlite3_stricmp("zipfile_cds", zName)==0 ){ |
| *pxFunc = zipfileFunctionCds; |
| *ppArg = (void*)pVtab; |
| return 1; |
| } |
| return 0; |
| } |
| |
| typedef struct ZipfileBuffer ZipfileBuffer; |
| struct ZipfileBuffer { |
| u8 *a; /* Pointer to buffer */ |
| int n; /* Size of buffer in bytes */ |
| int nAlloc; /* Byte allocated at a[] */ |
| }; |
| |
| typedef struct ZipfileCtx ZipfileCtx; |
| struct ZipfileCtx { |
| int nEntry; |
| ZipfileBuffer body; |
| ZipfileBuffer cds; |
| }; |
| |
| static int zipfileBufferGrow(ZipfileBuffer *pBuf, int nByte){ |
| if( pBuf->n+nByte>pBuf->nAlloc ){ |
| u8 *aNew; |
| sqlite3_int64 nNew = pBuf->n ? pBuf->n*2 : 512; |
| int nReq = pBuf->n + nByte; |
| |
| while( nNew<nReq ) nNew = nNew*2; |
| aNew = sqlite3_realloc64(pBuf->a, nNew); |
| if( aNew==0 ) return SQLITE_NOMEM; |
| pBuf->a = aNew; |
| pBuf->nAlloc = (int)nNew; |
| } |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** xStep() callback for the zipfile() aggregate. This can be called in |
| ** any of the following ways: |
| ** |
| ** SELECT zipfile(name,data) ... |
| ** SELECT zipfile(name,mode,mtime,data) ... |
| ** SELECT zipfile(name,mode,mtime,data,method) ... |
| */ |
| void zipfileStep(sqlite3_context *pCtx, int nVal, sqlite3_value **apVal){ |
| ZipfileCtx *p; /* Aggregate function context */ |
| ZipfileEntry e; /* New entry to add to zip archive */ |
| |
| sqlite3_value *pName = 0; |
| sqlite3_value *pMode = 0; |
| sqlite3_value *pMtime = 0; |
| sqlite3_value *pData = 0; |
| sqlite3_value *pMethod = 0; |
| |
| int bIsDir = 0; |
| u32 mode; |
| int rc = SQLITE_OK; |
| char *zErr = 0; |
| |
| int iMethod = -1; /* Compression method to use (0 or 8) */ |
| |
| const u8 *aData = 0; /* Possibly compressed data for new entry */ |
| int nData = 0; /* Size of aData[] in bytes */ |
| int szUncompressed = 0; /* Size of data before compression */ |
| u8 *aFree = 0; /* Free this before returning */ |
| u32 iCrc32 = 0; /* crc32 of uncompressed data */ |
| |
| char *zName = 0; /* Path (name) of new entry */ |
| int nName = 0; /* Size of zName in bytes */ |
| char *zFree = 0; /* Free this before returning */ |
| int nByte; |
| |
| memset(&e, 0, sizeof(e)); |
| p = (ZipfileCtx*)sqlite3_aggregate_context(pCtx, sizeof(ZipfileCtx)); |
| if( p==0 ) return; |
| |
| /* Martial the arguments into stack variables */ |
| if( nVal!=2 && nVal!=4 && nVal!=5 ){ |
| zErr = sqlite3_mprintf("wrong number of arguments to function zipfile()"); |
| rc = SQLITE_ERROR; |
| goto zipfile_step_out; |
| } |
| pName = apVal[0]; |
| if( nVal==2 ){ |
| pData = apVal[1]; |
| }else{ |
| pMode = apVal[1]; |
| pMtime = apVal[2]; |
| pData = apVal[3]; |
| if( nVal==5 ){ |
| pMethod = apVal[4]; |
| } |
| } |
| |
| /* Check that the 'name' parameter looks ok. */ |
| zName = (char*)sqlite3_value_text(pName); |
| nName = sqlite3_value_bytes(pName); |
| if( zName==0 ){ |
| zErr = sqlite3_mprintf("first argument to zipfile() must be non-NULL"); |
| rc = SQLITE_ERROR; |
| goto zipfile_step_out; |
| } |
| |
| /* Inspect the 'method' parameter. This must be either 0 (store), 8 (use |
| ** deflate compression) or NULL (choose automatically). */ |
| if( pMethod && SQLITE_NULL!=sqlite3_value_type(pMethod) ){ |
| iMethod = (int)sqlite3_value_int64(pMethod); |
| if( iMethod!=0 && iMethod!=8 ){ |
| zErr = sqlite3_mprintf("illegal method value: %d", iMethod); |
| rc = SQLITE_ERROR; |
| goto zipfile_step_out; |
| } |
| } |
| |
| /* Now inspect the data. If this is NULL, then the new entry must be a |
| ** directory. Otherwise, figure out whether or not the data should |
| ** be deflated or simply stored in the zip archive. */ |
| if( sqlite3_value_type(pData)==SQLITE_NULL ){ |
| bIsDir = 1; |
| iMethod = 0; |
| }else{ |
| aData = sqlite3_value_blob(pData); |
| szUncompressed = nData = sqlite3_value_bytes(pData); |
| iCrc32 = crc32(0, aData, nData); |
| if( iMethod<0 || iMethod==8 ){ |
| int nOut = 0; |
| rc = zipfileDeflate(aData, nData, &aFree, &nOut, &zErr); |
| if( rc!=SQLITE_OK ){ |
| goto zipfile_step_out; |
| } |
| if( iMethod==8 || nOut<nData ){ |
| aData = aFree; |
| nData = nOut; |
| iMethod = 8; |
| }else{ |
| iMethod = 0; |
| } |
| } |
| } |
| |
| /* Decode the "mode" argument. */ |
| rc = zipfileGetMode(pMode, bIsDir, &mode, &zErr); |
| if( rc ) goto zipfile_step_out; |
| |
| /* Decode the "mtime" argument. */ |
| e.mUnixTime = zipfileGetTime(pMtime); |
| |
| /* If this is a directory entry, ensure that there is exactly one '/' |
| ** at the end of the path. Or, if this is not a directory and the path |
| ** ends in '/' it is an error. */ |
| if( bIsDir==0 ){ |
| if( zName[nName-1]=='/' ){ |
| zErr = sqlite3_mprintf("non-directory name must not end with /"); |
| rc = SQLITE_ERROR; |
| goto zipfile_step_out; |
| } |
| }else{ |
| if( zName[nName-1]!='/' ){ |
| zName = zFree = sqlite3_mprintf("%s/", zName); |
| nName++; |
| if( zName==0 ){ |
| rc = SQLITE_NOMEM; |
| goto zipfile_step_out; |
| } |
| }else{ |
| while( nName>1 && zName[nName-2]=='/' ) nName--; |
| } |
| } |
| |
| /* Assemble the ZipfileEntry object for the new zip archive entry */ |
| e.cds.iVersionMadeBy = ZIPFILE_NEWENTRY_MADEBY; |
| e.cds.iVersionExtract = ZIPFILE_NEWENTRY_REQUIRED; |
| e.cds.flags = ZIPFILE_NEWENTRY_FLAGS; |
| e.cds.iCompression = (u16)iMethod; |
| zipfileMtimeToDos(&e.cds, (u32)e.mUnixTime); |
| e.cds.crc32 = iCrc32; |
| e.cds.szCompressed = nData; |
| e.cds.szUncompressed = szUncompressed; |
| e.cds.iExternalAttr = (mode<<16); |
| e.cds.iOffset = p->body.n; |
| e.cds.nFile = (u16)nName; |
| e.cds.zFile = zName; |
| |
| /* Append the LFH to the body of the new archive */ |
| nByte = ZIPFILE_LFH_FIXED_SZ + e.cds.nFile + 9; |
| if( (rc = zipfileBufferGrow(&p->body, nByte)) ) goto zipfile_step_out; |
| p->body.n += zipfileSerializeLFH(&e, &p->body.a[p->body.n]); |
| |
| /* Append the data to the body of the new archive */ |
| if( nData>0 ){ |
| if( (rc = zipfileBufferGrow(&p->body, nData)) ) goto zipfile_step_out; |
| memcpy(&p->body.a[p->body.n], aData, nData); |
| p->body.n += nData; |
| } |
| |
| /* Append the CDS record to the directory of the new archive */ |
| nByte = ZIPFILE_CDS_FIXED_SZ + e.cds.nFile + 9; |
| if( (rc = zipfileBufferGrow(&p->cds, nByte)) ) goto zipfile_step_out; |
| p->cds.n += zipfileSerializeCDS(&e, &p->cds.a[p->cds.n]); |
| |
| /* Increment the count of entries in the archive */ |
| p->nEntry++; |
| |
| zipfile_step_out: |
| sqlite3_free(aFree); |
| sqlite3_free(zFree); |
| if( rc ){ |
| if( zErr ){ |
| sqlite3_result_error(pCtx, zErr, -1); |
| }else{ |
| sqlite3_result_error_code(pCtx, rc); |
| } |
| } |
| sqlite3_free(zErr); |
| } |
| |
| /* |
| ** xFinalize() callback for zipfile aggregate function. |
| */ |
| void zipfileFinal(sqlite3_context *pCtx){ |
| ZipfileCtx *p; |
| ZipfileEOCD eocd; |
| sqlite3_int64 nZip; |
| u8 *aZip; |
| |
| p = (ZipfileCtx*)sqlite3_aggregate_context(pCtx, sizeof(ZipfileCtx)); |
| if( p==0 ) return; |
| if( p->nEntry>0 ){ |
| memset(&eocd, 0, sizeof(eocd)); |
| eocd.nEntry = (u16)p->nEntry; |
| eocd.nEntryTotal = (u16)p->nEntry; |
| eocd.nSize = p->cds.n; |
| eocd.iOffset = p->body.n; |
| |
| nZip = p->body.n + p->cds.n + ZIPFILE_EOCD_FIXED_SZ; |
| aZip = (u8*)sqlite3_malloc64(nZip); |
| if( aZip==0 ){ |
| sqlite3_result_error_nomem(pCtx); |
| }else{ |
| memcpy(aZip, p->body.a, p->body.n); |
| memcpy(&aZip[p->body.n], p->cds.a, p->cds.n); |
| zipfileSerializeEOCD(&eocd, &aZip[p->body.n + p->cds.n]); |
| sqlite3_result_blob(pCtx, aZip, (int)nZip, zipfileFree); |
| } |
| } |
| |
| sqlite3_free(p->body.a); |
| sqlite3_free(p->cds.a); |
| } |
| |
| |
| /* |
| ** Register the "zipfile" virtual table. |
| */ |
| static int zipfileRegister(sqlite3 *db){ |
| static sqlite3_module zipfileModule = { |
| 1, /* iVersion */ |
| zipfileConnect, /* xCreate */ |
| zipfileConnect, /* xConnect */ |
| zipfileBestIndex, /* xBestIndex */ |
| zipfileDisconnect, /* xDisconnect */ |
| zipfileDisconnect, /* xDestroy */ |
| zipfileOpen, /* xOpen - open a cursor */ |
| zipfileClose, /* xClose - close a cursor */ |
| zipfileFilter, /* xFilter - configure scan constraints */ |
| zipfileNext, /* xNext - advance a cursor */ |
| zipfileEof, /* xEof - check for end of scan */ |
| zipfileColumn, /* xColumn - read data */ |
| 0, /* xRowid - read data */ |
| zipfileUpdate, /* xUpdate */ |
| zipfileBegin, /* xBegin */ |
| 0, /* xSync */ |
| zipfileCommit, /* xCommit */ |
| zipfileRollback, /* xRollback */ |
| zipfileFindFunction, /* xFindMethod */ |
| 0, /* xRename */ |
| }; |
| |
| int rc = sqlite3_create_module(db, "zipfile" , &zipfileModule, 0); |
| if( rc==SQLITE_OK ) rc = sqlite3_overload_function(db, "zipfile_cds", -1); |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_create_function(db, "zipfile", -1, SQLITE_UTF8, 0, 0, |
| zipfileStep, zipfileFinal |
| ); |
| } |
| return rc; |
| } |
| #else /* SQLITE_OMIT_VIRTUALTABLE */ |
| # define zipfileRegister(x) SQLITE_OK |
| #endif |
| |
| #ifdef _WIN32 |
| |
| #endif |
| int sqlite3_zipfile_init( |
| sqlite3 *db, |
| char **pzErrMsg, |
| const sqlite3_api_routines *pApi |
| ){ |
| SQLITE_EXTENSION_INIT2(pApi); |
| (void)pzErrMsg; /* Unused parameter */ |
| return zipfileRegister(db); |
| } |
| |
| /************************* End ../ext/misc/zipfile.c ********************/ |
| /************************* Begin ../ext/misc/sqlar.c ******************/ |
| /* |
| ** 2017-12-17 |
| ** |
| ** The author disclaims copyright to this source code. In place of |
| ** a legal notice, here is a blessing: |
| ** |
| ** May you do good and not evil. |
| ** May you find forgiveness for yourself and forgive others. |
| ** May you share freely, never taking more than you give. |
| ** |
| ****************************************************************************** |
| ** |
| ** Utility functions sqlar_compress() and sqlar_uncompress(). Useful |
| ** for working with sqlar archives and used by the shell tool's built-in |
| ** sqlar support. |
| */ |
| SQLITE_EXTENSION_INIT1 |
| #include <zlib.h> |
| |
| /* |
| ** Implementation of the "sqlar_compress(X)" SQL function. |
| ** |
| ** If the type of X is SQLITE_BLOB, and compressing that blob using |
| ** zlib utility function compress() yields a smaller blob, return the |
| ** compressed blob. Otherwise, return a copy of X. |
| ** |
| ** SQLar uses the "zlib format" for compressed content. The zlib format |
| ** contains a two-byte identification header and a four-byte checksum at |
| ** the end. This is different from ZIP which uses the raw deflate format. |
| ** |
| ** Future enhancements to SQLar might add support for new compression formats. |
| ** If so, those new formats will be identified by alternative headers in the |
| ** compressed data. |
| */ |
| static void sqlarCompressFunc( |
| sqlite3_context *context, |
| int argc, |
| sqlite3_value **argv |
| ){ |
| assert( argc==1 ); |
| if( sqlite3_value_type(argv[0])==SQLITE_BLOB ){ |
| const Bytef *pData = sqlite3_value_blob(argv[0]); |
| uLong nData = sqlite3_value_bytes(argv[0]); |
| uLongf nOut = compressBound(nData); |
| Bytef *pOut; |
| |
| pOut = (Bytef*)sqlite3_malloc(nOut); |
| if( pOut==0 ){ |
| sqlite3_result_error_nomem(context); |
| return; |
| }else{ |
| if( Z_OK!=compress(pOut, &nOut, pData, nData) ){ |
| sqlite3_result_error(context, "error in compress()", -1); |
| }else if( nOut<nData ){ |
| sqlite3_result_blob(context, pOut, nOut, SQLITE_TRANSIENT); |
| }else{ |
| sqlite3_result_value(context, argv[0]); |
| } |
| sqlite3_free(pOut); |
| } |
| }else{ |
| sqlite3_result_value(context, argv[0]); |
| } |
| } |
| |
| /* |
| ** Implementation of the "sqlar_uncompress(X,SZ)" SQL function |
| ** |
| ** Parameter SZ is interpreted as an integer. If it is less than or |
| ** equal to zero, then this function returns a copy of X. Or, if |
| ** SZ is equal to the size of X when interpreted as a blob, also |
| ** return a copy of X. Otherwise, decompress blob X using zlib |
| ** utility function uncompress() and return the results (another |
| ** blob). |
| */ |
| static void sqlarUncompressFunc( |
| sqlite3_context *context, |
| int argc, |
| sqlite3_value **argv |
| ){ |
| uLong nData; |
| uLongf sz; |
| |
| assert( argc==2 ); |
| sz = sqlite3_value_int(argv[1]); |
| |
| if( sz<=0 || sz==(nData = sqlite3_value_bytes(argv[0])) ){ |
| sqlite3_result_value(context, argv[0]); |
| }else{ |
| const Bytef *pData= sqlite3_value_blob(argv[0]); |
| Bytef *pOut = sqlite3_malloc(sz); |
| if( Z_OK!=uncompress(pOut, &sz, pData, nData) ){ |
| sqlite3_result_error(context, "error in uncompress()", -1); |
| }else{ |
| sqlite3_result_blob(context, pOut, sz, SQLITE_TRANSIENT); |
| } |
| sqlite3_free(pOut); |
| } |
| } |
| |
| |
| #ifdef _WIN32 |
| |
| #endif |
| int sqlite3_sqlar_init( |
| sqlite3 *db, |
| char **pzErrMsg, |
| const sqlite3_api_routines *pApi |
| ){ |
| int rc = SQLITE_OK; |
| SQLITE_EXTENSION_INIT2(pApi); |
| (void)pzErrMsg; /* Unused parameter */ |
| rc = sqlite3_create_function(db, "sqlar_compress", 1, SQLITE_UTF8, 0, |
| sqlarCompressFunc, 0, 0); |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_create_function(db, "sqlar_uncompress", 2, SQLITE_UTF8, 0, |
| sqlarUncompressFunc, 0, 0); |
| } |
| return rc; |
| } |
| |
| /************************* End ../ext/misc/sqlar.c ********************/ |
| #endif |
| /************************* Begin ../ext/expert/sqlite3expert.h ******************/ |
| /* |
| ** 2017 April 07 |
| ** |
| ** The author disclaims copyright to this source code. In place of |
| ** a legal notice, here is a blessing: |
| ** |
| ** May you do good and not evil. |
| ** May you find forgiveness for yourself and forgive others. |
| ** May you share freely, never taking more than you give. |
| ** |
| ************************************************************************* |
| */ |
| |
| |
| |
| typedef struct sqlite3expert sqlite3expert; |
| |
| /* |
| ** Create a new sqlite3expert object. |
| ** |
| ** If successful, a pointer to the new object is returned and (*pzErr) set |
| ** to NULL. Or, if an error occurs, NULL is returned and (*pzErr) set to |
| ** an English-language error message. In this case it is the responsibility |
| ** of the caller to eventually free the error message buffer using |
| ** sqlite3_free(). |
| */ |
| sqlite3expert *sqlite3_expert_new(sqlite3 *db, char **pzErr); |
| |
| /* |
| ** Configure an sqlite3expert object. |
| ** |
| ** EXPERT_CONFIG_SAMPLE: |
| ** By default, sqlite3_expert_analyze() generates sqlite_stat1 data for |
| ** each candidate index. This involves scanning and sorting the entire |
| ** contents of each user database table once for each candidate index |
| ** associated with the table. For large databases, this can be |
| ** prohibitively slow. This option allows the sqlite3expert object to |
| ** be configured so that sqlite_stat1 data is instead generated based on a |
| ** subset of each table, or so that no sqlite_stat1 data is used at all. |
| ** |
| ** A single integer argument is passed to this option. If the value is less |
| ** than or equal to zero, then no sqlite_stat1 data is generated or used by |
| ** the analysis - indexes are recommended based on the database schema only. |
| ** Or, if the value is 100 or greater, complete sqlite_stat1 data is |
| ** generated for each candidate index (this is the default). Finally, if the |
| ** value falls between 0 and 100, then it represents the percentage of user |
| ** table rows that should be considered when generating sqlite_stat1 data. |
| ** |
| ** Examples: |
| ** |
| ** // Do not generate any sqlite_stat1 data |
| ** sqlite3_expert_config(pExpert, EXPERT_CONFIG_SAMPLE, 0); |
| ** |
| ** // Generate sqlite_stat1 data based on 10% of the rows in each table. |
| ** sqlite3_expert_config(pExpert, EXPERT_CONFIG_SAMPLE, 10); |
| */ |
| int sqlite3_expert_config(sqlite3expert *p, int op, ...); |
| |
| #define EXPERT_CONFIG_SAMPLE 1 /* int */ |
| |
| /* |
| ** Specify zero or more SQL statements to be included in the analysis. |
| ** |
| ** Buffer zSql must contain zero or more complete SQL statements. This |
| ** function parses all statements contained in the buffer and adds them |
| ** to the internal list of statements to analyze. If successful, SQLITE_OK |
| ** is returned and (*pzErr) set to NULL. Or, if an error occurs - for example |
| ** due to a error in the SQL - an SQLite error code is returned and (*pzErr) |
| ** may be set to point to an English language error message. In this case |
| ** the caller is responsible for eventually freeing the error message buffer |
| ** using sqlite3_free(). |
| ** |
| ** If an error does occur while processing one of the statements in the |
| ** buffer passed as the second argument, none of the statements in the |
| ** buffer are added to the analysis. |
| ** |
| ** This function must be called before sqlite3_expert_analyze(). If a call |
| ** to this function is made on an sqlite3expert object that has already |
| ** been passed to sqlite3_expert_analyze() SQLITE_MISUSE is returned |
| ** immediately and no statements are added to the analysis. |
| */ |
| int sqlite3_expert_sql( |
| sqlite3expert *p, /* From a successful sqlite3_expert_new() */ |
| const char *zSql, /* SQL statement(s) to add */ |
| char **pzErr /* OUT: Error message (if any) */ |
| ); |
| |
| |
| /* |
| ** This function is called after the sqlite3expert object has been configured |
| ** with all SQL statements using sqlite3_expert_sql() to actually perform |
| ** the analysis. Once this function has been called, it is not possible to |
| ** add further SQL statements to the analysis. |
| ** |
| ** If successful, SQLITE_OK is returned and (*pzErr) is set to NULL. Or, if |
| ** an error occurs, an SQLite error code is returned and (*pzErr) set to |
| ** point to a buffer containing an English language error message. In this |
| ** case it is the responsibility of the caller to eventually free the buffer |
| ** using sqlite3_free(). |
| ** |
| ** If an error does occur within this function, the sqlite3expert object |
| ** is no longer useful for any purpose. At that point it is no longer |
| ** possible to add further SQL statements to the object or to re-attempt |
| ** the analysis. The sqlite3expert object must still be freed using a call |
| ** sqlite3_expert_destroy(). |
| */ |
| int sqlite3_expert_analyze(sqlite3expert *p, char **pzErr); |
| |
| /* |
| ** Return the total number of statements loaded using sqlite3_expert_sql(). |
| ** The total number of SQL statements may be different from the total number |
| ** to calls to sqlite3_expert_sql(). |
| */ |
| int sqlite3_expert_count(sqlite3expert*); |
| |
| /* |
| ** Return a component of the report. |
| ** |
| ** This function is called after sqlite3_expert_analyze() to extract the |
| ** results of the analysis. Each call to this function returns either a |
| ** NULL pointer or a pointer to a buffer containing a nul-terminated string. |
| ** The value passed as the third argument must be one of the EXPERT_REPORT_* |
| ** #define constants defined below. |
| ** |
| ** For some EXPERT_REPORT_* parameters, the buffer returned contains |
| ** information relating to a specific SQL statement. In these cases that |
| ** SQL statement is identified by the value passed as the second argument. |
| ** SQL statements are numbered from 0 in the order in which they are parsed. |
| ** If an out-of-range value (less than zero or equal to or greater than the |
| ** value returned by sqlite3_expert_count()) is passed as the second argument |
| ** along with such an EXPERT_REPORT_* parameter, NULL is always returned. |
| ** |
| ** EXPERT_REPORT_SQL: |
| ** Return the text of SQL statement iStmt. |
| ** |
| ** EXPERT_REPORT_INDEXES: |
| ** Return a buffer containing the CREATE INDEX statements for all recommended |
| ** indexes for statement iStmt. If there are no new recommeded indexes, NULL |
| ** is returned. |
| ** |
| ** EXPERT_REPORT_PLAN: |
| ** Return a buffer containing the EXPLAIN QUERY PLAN output for SQL query |
| ** iStmt after the proposed indexes have been added to the database schema. |
| ** |
| ** EXPERT_REPORT_CANDIDATES: |
| ** Return a pointer to a buffer containing the CREATE INDEX statements |
| ** for all indexes that were tested (for all SQL statements). The iStmt |
| ** parameter is ignored for EXPERT_REPORT_CANDIDATES calls. |
| */ |
| const char *sqlite3_expert_report(sqlite3expert*, int iStmt, int eReport); |
| |
| /* |
| ** Values for the third argument passed to sqlite3_expert_report(). |
| */ |
| #define EXPERT_REPORT_SQL 1 |
| #define EXPERT_REPORT_INDEXES 2 |
| #define EXPERT_REPORT_PLAN 3 |
| #define EXPERT_REPORT_CANDIDATES 4 |
| |
| /* |
| ** Free an (sqlite3expert*) handle and all associated resources. There |
| ** should be one call to this function for each successful call to |
| ** sqlite3-expert_new(). |
| */ |
| void sqlite3_expert_destroy(sqlite3expert*); |
| |
| |
| |
| /************************* End ../ext/expert/sqlite3expert.h ********************/ |
| /************************* Begin ../ext/expert/sqlite3expert.c ******************/ |
| /* |
| ** 2017 April 09 |
| ** |
| ** The author disclaims copyright to this source code. In place of |
| ** a legal notice, here is a blessing: |
| ** |
| ** May you do good and not evil. |
| ** May you find forgiveness for yourself and forgive others. |
| ** May you share freely, never taking more than you give. |
| ** |
| ************************************************************************* |
| */ |
| #include <assert.h> |
| #include <string.h> |
| #include <stdio.h> |
| |
| #ifndef SQLITE_OMIT_VIRTUALTABLE |
| |
| /* typedef sqlite3_int64 i64; */ |
| /* typedef sqlite3_uint64 u64; */ |
| |
| typedef struct IdxColumn IdxColumn; |
| typedef struct IdxConstraint IdxConstraint; |
| typedef struct IdxScan IdxScan; |
| typedef struct IdxStatement IdxStatement; |
| typedef struct IdxTable IdxTable; |
| typedef struct IdxWrite IdxWrite; |
| |
| #define STRLEN (int)strlen |
| |
| /* |
| ** A temp table name that we assume no user database will actually use. |
| ** If this assumption proves incorrect triggers on the table with the |
| ** conflicting name will be ignored. |
| */ |
| #define UNIQUE_TABLE_NAME "t592690916721053953805701627921227776" |
| |
| /* |
| ** A single constraint. Equivalent to either "col = ?" or "col < ?" (or |
| ** any other type of single-ended range constraint on a column). |
| ** |
| ** pLink: |
| ** Used to temporarily link IdxConstraint objects into lists while |
| ** creating candidate indexes. |
| */ |
| struct IdxConstraint { |
| char *zColl; /* Collation sequence */ |
| int bRange; /* True for range, false for eq */ |
| int iCol; /* Constrained table column */ |
| int bFlag; /* Used by idxFindCompatible() */ |
| int bDesc; /* True if ORDER BY <expr> DESC */ |
| IdxConstraint *pNext; /* Next constraint in pEq or pRange list */ |
| IdxConstraint *pLink; /* See above */ |
| }; |
| |
| /* |
| ** A single scan of a single table. |
| */ |
| struct IdxScan { |
| IdxTable *pTab; /* Associated table object */ |
| int iDb; /* Database containing table zTable */ |
| i64 covering; /* Mask of columns required for cov. index */ |
| IdxConstraint *pOrder; /* ORDER BY columns */ |
| IdxConstraint *pEq; /* List of == constraints */ |
| IdxConstraint *pRange; /* List of < constraints */ |
| IdxScan *pNextScan; /* Next IdxScan object for same analysis */ |
| }; |
| |
| /* |
| ** Information regarding a single database table. Extracted from |
| ** "PRAGMA table_info" by function idxGetTableInfo(). |
| */ |
| struct IdxColumn { |
| char *zName; |
| char *zColl; |
| int iPk; |
| }; |
| struct IdxTable { |
| int nCol; |
| char *zName; /* Table name */ |
| IdxColumn *aCol; |
| IdxTable *pNext; /* Next table in linked list of all tables */ |
| }; |
| |
| /* |
| ** An object of the following type is created for each unique table/write-op |
| ** seen. The objects are stored in a singly-linked list beginning at |
| ** sqlite3expert.pWrite. |
| */ |
| struct IdxWrite { |
| IdxTable *pTab; |
| int eOp; /* SQLITE_UPDATE, DELETE or INSERT */ |
| IdxWrite *pNext; |
| }; |
| |
| /* |
| ** Each statement being analyzed is represented by an instance of this |
| ** structure. |
| */ |
| struct IdxStatement { |
| int iId; /* Statement number */ |
| char *zSql; /* SQL statement */ |
| char *zIdx; /* Indexes */ |
| char *zEQP; /* Plan */ |
| IdxStatement *pNext; |
| }; |
| |
| |
| /* |
| ** A hash table for storing strings. With space for a payload string |
| ** with each entry. Methods are: |
| ** |
| ** idxHashInit() |
| ** idxHashClear() |
| ** idxHashAdd() |
| ** idxHashSearch() |
| */ |
| #define IDX_HASH_SIZE 1023 |
| typedef struct IdxHashEntry IdxHashEntry; |
| typedef struct IdxHash IdxHash; |
| struct IdxHashEntry { |
| char *zKey; /* nul-terminated key */ |
| char *zVal; /* nul-terminated value string */ |
| char *zVal2; /* nul-terminated value string 2 */ |
| IdxHashEntry *pHashNext; /* Next entry in same hash bucket */ |
| IdxHashEntry *pNext; /* Next entry in hash */ |
| }; |
| struct IdxHash { |
| IdxHashEntry *pFirst; |
| IdxHashEntry *aHash[IDX_HASH_SIZE]; |
| }; |
| |
| /* |
| ** sqlite3expert object. |
| */ |
| struct sqlite3expert { |
| int iSample; /* Percentage of tables to sample for stat1 */ |
| sqlite3 *db; /* User database */ |
| sqlite3 *dbm; /* In-memory db for this analysis */ |
| sqlite3 *dbv; /* Vtab schema for this analysis */ |
| IdxTable *pTable; /* List of all IdxTable objects */ |
| IdxScan *pScan; /* List of scan objects */ |
| IdxWrite *pWrite; /* List of write objects */ |
| IdxStatement *pStatement; /* List of IdxStatement objects */ |
| int bRun; /* True once analysis has run */ |
| char **pzErrmsg; |
| int rc; /* Error code from whereinfo hook */ |
| IdxHash hIdx; /* Hash containing all candidate indexes */ |
| char *zCandidates; /* For EXPERT_REPORT_CANDIDATES */ |
| }; |
| |
| |
| /* |
| ** Allocate and return nByte bytes of zeroed memory using sqlite3_malloc(). |
| ** If the allocation fails, set *pRc to SQLITE_NOMEM and return NULL. |
| */ |
| static void *idxMalloc(int *pRc, int nByte){ |
| void *pRet; |
| assert( *pRc==SQLITE_OK ); |
| assert( nByte>0 ); |
| pRet = sqlite3_malloc(nByte); |
| if( pRet ){ |
| memset(pRet, 0, nByte); |
| }else{ |
| *pRc = SQLITE_NOMEM; |
| } |
| return pRet; |
| } |
| |
| /* |
| ** Initialize an IdxHash hash table. |
| */ |
| static void idxHashInit(IdxHash *pHash){ |
| memset(pHash, 0, sizeof(IdxHash)); |
| } |
| |
| /* |
| ** Reset an IdxHash hash table. |
| */ |
| static void idxHashClear(IdxHash *pHash){ |
| int i; |
| for(i=0; i<IDX_HASH_SIZE; i++){ |
| IdxHashEntry *pEntry; |
| IdxHashEntry *pNext; |
| for(pEntry=pHash->aHash[i]; pEntry; pEntry=pNext){ |
| pNext = pEntry->pHashNext; |
| sqlite3_free(pEntry->zVal2); |
| sqlite3_free(pEntry); |
| } |
| } |
| memset(pHash, 0, sizeof(IdxHash)); |
| } |
| |
| /* |
| ** Return the index of the hash bucket that the string specified by the |
| ** arguments to this function belongs. |
| */ |
| static int idxHashString(const char *z, int n){ |
| unsigned int ret = 0; |
| int i; |
| for(i=0; i<n; i++){ |
| ret += (ret<<3) + (unsigned char)(z[i]); |
| } |
| return (int)(ret % IDX_HASH_SIZE); |
| } |
| |
| /* |
| ** If zKey is already present in the hash table, return non-zero and do |
| ** nothing. Otherwise, add an entry with key zKey and payload string zVal to |
| ** the hash table passed as the second argument. |
| */ |
| static int idxHashAdd( |
| int *pRc, |
| IdxHash *pHash, |
| const char *zKey, |
| const char *zVal |
| ){ |
| int nKey = STRLEN(zKey); |
| int iHash = idxHashString(zKey, nKey); |
| int nVal = (zVal ? STRLEN(zVal) : 0); |
| IdxHashEntry *pEntry; |
| assert( iHash>=0 ); |
| for(pEntry=pHash->aHash[iHash]; pEntry; pEntry=pEntry->pHashNext){ |
| if( STRLEN(pEntry->zKey)==nKey && 0==memcmp(pEntry->zKey, zKey, nKey) ){ |
| return 1; |
| } |
| } |
| pEntry = idxMalloc(pRc, sizeof(IdxHashEntry) + nKey+1 + nVal+1); |
| if( pEntry ){ |
| pEntry->zKey = (char*)&pEntry[1]; |
| memcpy(pEntry->zKey, zKey, nKey); |
| if( zVal ){ |
| pEntry->zVal = &pEntry->zKey[nKey+1]; |
| memcpy(pEntry->zVal, zVal, nVal); |
| } |
| pEntry->pHashNext = pHash->aHash[iHash]; |
| pHash->aHash[iHash] = pEntry; |
| |
| pEntry->pNext = pHash->pFirst; |
| pHash->pFirst = pEntry; |
| } |
| return 0; |
| } |
| |
| /* |
| ** If zKey/nKey is present in the hash table, return a pointer to the |
| ** hash-entry object. |
| */ |
| static IdxHashEntry *idxHashFind(IdxHash *pHash, const char *zKey, int nKey){ |
| int iHash; |
| IdxHashEntry *pEntry; |
| if( nKey<0 ) nKey = STRLEN(zKey); |
| iHash = idxHashString(zKey, nKey); |
| assert( iHash>=0 ); |
| for(pEntry=pHash->aHash[iHash]; pEntry; pEntry=pEntry->pHashNext){ |
| if( STRLEN(pEntry->zKey)==nKey && 0==memcmp(pEntry->zKey, zKey, nKey) ){ |
| return pEntry; |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| ** If the hash table contains an entry with a key equal to the string |
| ** passed as the final two arguments to this function, return a pointer |
| ** to the payload string. Otherwise, if zKey/nKey is not present in the |
| ** hash table, return NULL. |
| */ |
| static const char *idxHashSearch(IdxHash *pHash, const char *zKey, int nKey){ |
| IdxHashEntry *pEntry = idxHashFind(pHash, zKey, nKey); |
| if( pEntry ) return pEntry->zVal; |
| return 0; |
| } |
| |
| /* |
| ** Allocate and return a new IdxConstraint object. Set the IdxConstraint.zColl |
| ** variable to point to a copy of nul-terminated string zColl. |
| */ |
| static IdxConstraint *idxNewConstraint(int *pRc, const char *zColl){ |
| IdxConstraint *pNew; |
| int nColl = STRLEN(zColl); |
| |
| assert( *pRc==SQLITE_OK ); |
| pNew = (IdxConstraint*)idxMalloc(pRc, sizeof(IdxConstraint) * nColl + 1); |
| if( pNew ){ |
| pNew->zColl = (char*)&pNew[1]; |
| memcpy(pNew->zColl, zColl, nColl+1); |
| } |
| return pNew; |
| } |
| |
| /* |
| ** An error associated with database handle db has just occurred. Pass |
| ** the error message to callback function xOut. |
| */ |
| static void idxDatabaseError( |
| sqlite3 *db, /* Database handle */ |
| char **pzErrmsg /* Write error here */ |
| ){ |
| *pzErrmsg = sqlite3_mprintf("%s", sqlite3_errmsg(db)); |
| } |
| |
| /* |
| ** Prepare an SQL statement. |
| */ |
| static int idxPrepareStmt( |
| sqlite3 *db, /* Database handle to compile against */ |
| sqlite3_stmt **ppStmt, /* OUT: Compiled SQL statement */ |
| char **pzErrmsg, /* OUT: sqlite3_malloc()ed error message */ |
| const char *zSql /* SQL statement to compile */ |
| ){ |
| int rc = sqlite3_prepare_v2(db, zSql, -1, ppStmt, 0); |
| if( rc!=SQLITE_OK ){ |
| *ppStmt = 0; |
| idxDatabaseError(db, pzErrmsg); |
| } |
| return rc; |
| } |
| |
| /* |
| ** Prepare an SQL statement using the results of a printf() formatting. |
| */ |
| static int idxPrintfPrepareStmt( |
| sqlite3 *db, /* Database handle to compile against */ |
| sqlite3_stmt **ppStmt, /* OUT: Compiled SQL statement */ |
| char **pzErrmsg, /* OUT: sqlite3_malloc()ed error message */ |
| const char *zFmt, /* printf() format of SQL statement */ |
| ... /* Trailing printf() arguments */ |
| ){ |
| va_list ap; |
| int rc; |
| char *zSql; |
| va_start(ap, zFmt); |
| zSql = sqlite3_vmprintf(zFmt, ap); |
| if( zSql==0 ){ |
| rc = SQLITE_NOMEM; |
| }else{ |
| rc = idxPrepareStmt(db, ppStmt, pzErrmsg, zSql); |
| sqlite3_free(zSql); |
| } |
| va_end(ap); |
| return rc; |
| } |
| |
| |
| /************************************************************************* |
| ** Beginning of virtual table implementation. |
| */ |
| typedef struct ExpertVtab ExpertVtab; |
| struct ExpertVtab { |
| sqlite3_vtab base; |
| IdxTable *pTab; |
| sqlite3expert *pExpert; |
| }; |
| |
| typedef struct ExpertCsr ExpertCsr; |
| struct ExpertCsr { |
| sqlite3_vtab_cursor base; |
| sqlite3_stmt *pData; |
| }; |
| |
| static char *expertDequote(const char *zIn){ |
| int n = STRLEN(zIn); |
| char *zRet = sqlite3_malloc(n); |
| |
| assert( zIn[0]=='\'' ); |
| assert( zIn[n-1]=='\'' ); |
| |
| if( zRet ){ |
| int iOut = 0; |
| int iIn = 0; |
| for(iIn=1; iIn<(n-1); iIn++){ |
| if( zIn[iIn]=='\'' ){ |
| assert( zIn[iIn+1]=='\'' ); |
| iIn++; |
| } |
| zRet[iOut++] = zIn[iIn]; |
| } |
| zRet[iOut] = '\0'; |
| } |
| |
| return zRet; |
| } |
| |
| /* |
| ** This function is the implementation of both the xConnect and xCreate |
| ** methods of the r-tree virtual table. |
| ** |
| ** argv[0] -> module name |
| ** argv[1] -> database name |
| ** argv[2] -> table name |
| ** argv[...] -> column names... |
| */ |
| static int expertConnect( |
| sqlite3 *db, |
| void *pAux, |
| int argc, const char *const*argv, |
| sqlite3_vtab **ppVtab, |
| char **pzErr |
| ){ |
| sqlite3expert *pExpert = (sqlite3expert*)pAux; |
| ExpertVtab *p = 0; |
| int rc; |
| |
| if( argc!=4 ){ |
| *pzErr = sqlite3_mprintf("internal error!"); |
| rc = SQLITE_ERROR; |
| }else{ |
| char *zCreateTable = expertDequote(argv[3]); |
| if( zCreateTable ){ |
| rc = sqlite3_declare_vtab(db, zCreateTable); |
| if( rc==SQLITE_OK ){ |
| p = idxMalloc(&rc, sizeof(ExpertVtab)); |
| } |
| if( rc==SQLITE_OK ){ |
| p->pExpert = pExpert; |
| p->pTab = pExpert->pTable; |
| assert( sqlite3_stricmp(p->pTab->zName, argv[2])==0 ); |
| } |
| sqlite3_free(zCreateTable); |
| }else{ |
| rc = SQLITE_NOMEM; |
| } |
| } |
| |
| *ppVtab = (sqlite3_vtab*)p; |
| return rc; |
| } |
| |
| static int expertDisconnect(sqlite3_vtab *pVtab){ |
| ExpertVtab *p = (ExpertVtab*)pVtab; |
| sqlite3_free(p); |
| return SQLITE_OK; |
| } |
| |
| static int expertBestIndex(sqlite3_vtab *pVtab, sqlite3_index_info *pIdxInfo){ |
| ExpertVtab *p = (ExpertVtab*)pVtab; |
| int rc = SQLITE_OK; |
| int n = 0; |
| IdxScan *pScan; |
| const int opmask = |
| SQLITE_INDEX_CONSTRAINT_EQ | SQLITE_INDEX_CONSTRAINT_GT | |
| SQLITE_INDEX_CONSTRAINT_LT | SQLITE_INDEX_CONSTRAINT_GE | |
| SQLITE_INDEX_CONSTRAINT_LE; |
| |
| pScan = idxMalloc(&rc, sizeof(IdxScan)); |
| if( pScan ){ |
| int i; |
| |
| /* Link the new scan object into the list */ |
| pScan->pTab = p->pTab; |
| pScan->pNextScan = p->pExpert->pScan; |
| p->pExpert->pScan = pScan; |
| |
| /* Add the constraints to the IdxScan object */ |
| for(i=0; i<pIdxInfo->nConstraint; i++){ |
| struct sqlite3_index_constraint *pCons = &pIdxInfo->aConstraint[i]; |
| if( pCons->usable |
| && pCons->iColumn>=0 |
| && p->pTab->aCol[pCons->iColumn].iPk==0 |
| && (pCons->op & opmask) |
| ){ |
| IdxConstraint *pNew; |
| const char *zColl = sqlite3_vtab_collation(pIdxInfo, i); |
| pNew = idxNewConstraint(&rc, zColl); |
| if( pNew ){ |
| pNew->iCol = pCons->iColumn; |
| if( pCons->op==SQLITE_INDEX_CONSTRAINT_EQ ){ |
| pNew->pNext = pScan->pEq; |
| pScan->pEq = pNew; |
| }else{ |
| pNew->bRange = 1; |
| pNew->pNext = pScan->pRange; |
| pScan->pRange = pNew; |
| } |
| } |
| n++; |
| pIdxInfo->aConstraintUsage[i].argvIndex = n; |
| } |
| } |
| |
| /* Add the ORDER BY to the IdxScan object */ |
| for(i=pIdxInfo->nOrderBy-1; i>=0; i--){ |
| int iCol = pIdxInfo->aOrderBy[i].iColumn; |
| if( iCol>=0 ){ |
| IdxConstraint *pNew = idxNewConstraint(&rc, p->pTab->aCol[iCol].zColl); |
| if( pNew ){ |
| pNew->iCol = iCol; |
| pNew->bDesc = pIdxInfo->aOrderBy[i].desc; |
| pNew->pNext = pScan->pOrder; |
| pNew->pLink = pScan->pOrder; |
| pScan->pOrder = pNew; |
| n++; |
| } |
| } |
| } |
| } |
| |
| pIdxInfo->estimatedCost = 1000000.0 / (n+1); |
| return rc; |
| } |
| |
| static int expertUpdate( |
| sqlite3_vtab *pVtab, |
| int nData, |
| sqlite3_value **azData, |
| sqlite_int64 *pRowid |
| ){ |
| (void)pVtab; |
| (void)nData; |
| (void)azData; |
| (void)pRowid; |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Virtual table module xOpen method. |
| */ |
| static int expertOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){ |
| int rc = SQLITE_OK; |
| ExpertCsr *pCsr; |
| (void)pVTab; |
| pCsr = idxMalloc(&rc, sizeof(ExpertCsr)); |
| *ppCursor = (sqlite3_vtab_cursor*)pCsr; |
| return rc; |
| } |
| |
| /* |
| ** Virtual table module xClose method. |
| */ |
| static int expertClose(sqlite3_vtab_cursor *cur){ |
| ExpertCsr *pCsr = (ExpertCsr*)cur; |
| sqlite3_finalize(pCsr->pData); |
| sqlite3_free(pCsr); |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Virtual table module xEof method. |
| ** |
| ** Return non-zero if the cursor does not currently point to a valid |
| ** record (i.e if the scan has finished), or zero otherwise. |
| */ |
| static int expertEof(sqlite3_vtab_cursor *cur){ |
| ExpertCsr *pCsr = (ExpertCsr*)cur; |
| return pCsr->pData==0; |
| } |
| |
| /* |
| ** Virtual table module xNext method. |
| */ |
| static int expertNext(sqlite3_vtab_cursor *cur){ |
| ExpertCsr *pCsr = (ExpertCsr*)cur; |
| int rc = SQLITE_OK; |
| |
| assert( pCsr->pData ); |
| rc = sqlite3_step(pCsr->pData); |
| if( rc!=SQLITE_ROW ){ |
| rc = sqlite3_finalize(pCsr->pData); |
| pCsr->pData = 0; |
| }else{ |
| rc = SQLITE_OK; |
| } |
| |
| return rc; |
| } |
| |
| /* |
| ** Virtual table module xRowid method. |
| */ |
| static int expertRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){ |
| (void)cur; |
| *pRowid = 0; |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Virtual table module xColumn method. |
| */ |
| static int expertColumn(sqlite3_vtab_cursor *cur, sqlite3_context *ctx, int i){ |
| ExpertCsr *pCsr = (ExpertCsr*)cur; |
| sqlite3_value *pVal; |
| pVal = sqlite3_column_value(pCsr->pData, i); |
| if( pVal ){ |
| sqlite3_result_value(ctx, pVal); |
| } |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Virtual table module xFilter method. |
| */ |
| static int expertFilter( |
| sqlite3_vtab_cursor *cur, |
| int idxNum, const char *idxStr, |
| int argc, sqlite3_value **argv |
| ){ |
| ExpertCsr *pCsr = (ExpertCsr*)cur; |
| ExpertVtab *pVtab = (ExpertVtab*)(cur->pVtab); |
| sqlite3expert *pExpert = pVtab->pExpert; |
| int rc; |
| |
| (void)idxNum; |
| (void)idxStr; |
| (void)argc; |
| (void)argv; |
| rc = sqlite3_finalize(pCsr->pData); |
| pCsr->pData = 0; |
| if( rc==SQLITE_OK ){ |
| rc = idxPrintfPrepareStmt(pExpert->db, &pCsr->pData, &pVtab->base.zErrMsg, |
| "SELECT * FROM main.%Q WHERE sample()", pVtab->pTab->zName |
| ); |
| } |
| |
| if( rc==SQLITE_OK ){ |
| rc = expertNext(cur); |
| } |
| return rc; |
| } |
| |
| static int idxRegisterVtab(sqlite3expert *p){ |
| static sqlite3_module expertModule = { |
| 2, /* iVersion */ |
| expertConnect, /* xCreate - create a table */ |
| expertConnect, /* xConnect - connect to an existing table */ |
| expertBestIndex, /* xBestIndex - Determine search strategy */ |
| expertDisconnect, /* xDisconnect - Disconnect from a table */ |
| expertDisconnect, /* xDestroy - Drop a table */ |
| expertOpen, /* xOpen - open a cursor */ |
| expertClose, /* xClose - close a cursor */ |
| expertFilter, /* xFilter - configure scan constraints */ |
| expertNext, /* xNext - advance a cursor */ |
| expertEof, /* xEof */ |
| expertColumn, /* xColumn - read data */ |
| expertRowid, /* xRowid - read data */ |
| expertUpdate, /* xUpdate - write data */ |
| 0, /* xBegin - begin transaction */ |
| 0, /* xSync - sync transaction */ |
| 0, /* xCommit - commit transaction */ |
| 0, /* xRollback - rollback transaction */ |
| 0, /* xFindFunction - function overloading */ |
| 0, /* xRename - rename the table */ |
| 0, /* xSavepoint */ |
| 0, /* xRelease */ |
| 0, /* xRollbackTo */ |
| 0, /* xShadowName */ |
| }; |
| |
| return sqlite3_create_module(p->dbv, "expert", &expertModule, (void*)p); |
| } |
| /* |
| ** End of virtual table implementation. |
| *************************************************************************/ |
| /* |
| ** Finalize SQL statement pStmt. If (*pRc) is SQLITE_OK when this function |
| ** is called, set it to the return value of sqlite3_finalize() before |
| ** returning. Otherwise, discard the sqlite3_finalize() return value. |
| */ |
| static void idxFinalize(int *pRc, sqlite3_stmt *pStmt){ |
| int rc = sqlite3_finalize(pStmt); |
| if( *pRc==SQLITE_OK ) *pRc = rc; |
| } |
| |
| /* |
| ** Attempt to allocate an IdxTable structure corresponding to table zTab |
| ** in the main database of connection db. If successful, set (*ppOut) to |
| ** point to the new object and return SQLITE_OK. Otherwise, return an |
| ** SQLite error code and set (*ppOut) to NULL. In this case *pzErrmsg may be |
| ** set to point to an error string. |
| ** |
| ** It is the responsibility of the caller to eventually free either the |
| ** IdxTable object or error message using sqlite3_free(). |
| */ |
| static int idxGetTableInfo( |
| sqlite3 *db, /* Database connection to read details from */ |
| const char *zTab, /* Table name */ |
| IdxTable **ppOut, /* OUT: New object (if successful) */ |
| char **pzErrmsg /* OUT: Error message (if not) */ |
| ){ |
| sqlite3_stmt *p1 = 0; |
| int nCol = 0; |
| int nTab = STRLEN(zTab); |
| int nByte = sizeof(IdxTable) + nTab + 1; |
| IdxTable *pNew = 0; |
| int rc, rc2; |
| char *pCsr = 0; |
| |
| rc = idxPrintfPrepareStmt(db, &p1, pzErrmsg, "PRAGMA table_info=%Q", zTab); |
| while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(p1) ){ |
| const char *zCol = (const char*)sqlite3_column_text(p1, 1); |
| nByte += 1 + STRLEN(zCol); |
| rc = sqlite3_table_column_metadata( |
| db, "main", zTab, zCol, 0, &zCol, 0, 0, 0 |
| ); |
| nByte += 1 + STRLEN(zCol); |
| nCol++; |
| } |
| rc2 = sqlite3_reset(p1); |
| if( rc==SQLITE_OK ) rc = rc2; |
| |
| nByte += sizeof(IdxColumn) * nCol; |
| if( rc==SQLITE_OK ){ |
| pNew = idxMalloc(&rc, nByte); |
| } |
| if( rc==SQLITE_OK ){ |
| pNew->aCol = (IdxColumn*)&pNew[1]; |
| pNew->nCol = nCol; |
| pCsr = (char*)&pNew->aCol[nCol]; |
| } |
| |
| nCol = 0; |
| while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(p1) ){ |
| const char *zCol = (const char*)sqlite3_column_text(p1, 1); |
| int nCopy = STRLEN(zCol) + 1; |
| pNew->aCol[nCol].zName = pCsr; |
| pNew->aCol[nCol].iPk = sqlite3_column_int(p1, 5); |
| memcpy(pCsr, zCol, nCopy); |
| pCsr += nCopy; |
| |
| rc = sqlite3_table_column_metadata( |
| db, "main", zTab, zCol, 0, &zCol, 0, 0, 0 |
| ); |
| if( rc==SQLITE_OK ){ |
| nCopy = STRLEN(zCol) + 1; |
| pNew->aCol[nCol].zColl = pCsr; |
| memcpy(pCsr, zCol, nCopy); |
| pCsr += nCopy; |
| } |
| |
| nCol++; |
| } |
| idxFinalize(&rc, p1); |
| |
| if( rc!=SQLITE_OK ){ |
| sqlite3_free(pNew); |
| pNew = 0; |
| }else{ |
| pNew->zName = pCsr; |
| memcpy(pNew->zName, zTab, nTab+1); |
| } |
| |
| *ppOut = pNew; |
| return rc; |
| } |
| |
| /* |
| ** This function is a no-op if *pRc is set to anything other than |
| ** SQLITE_OK when it is called. |
| ** |
| ** If *pRc is initially set to SQLITE_OK, then the text specified by |
| ** the printf() style arguments is appended to zIn and the result returned |
| ** in a buffer allocated by sqlite3_malloc(). sqlite3_free() is called on |
| ** zIn before returning. |
| */ |
| static char *idxAppendText(int *pRc, char *zIn, const char *zFmt, ...){ |
| va_list ap; |
| char *zAppend = 0; |
| char *zRet = 0; |
| int nIn = zIn ? STRLEN(zIn) : 0; |
| int nAppend = 0; |
| va_start(ap, zFmt); |
| if( *pRc==SQLITE_OK ){ |
| zAppend = sqlite3_vmprintf(zFmt, ap); |
| if( zAppend ){ |
| nAppend = STRLEN(zAppend); |
| zRet = (char*)sqlite3_malloc(nIn + nAppend + 1); |
| } |
| if( zAppend && zRet ){ |
| if( nIn ) memcpy(zRet, zIn, nIn); |
| memcpy(&zRet[nIn], zAppend, nAppend+1); |
| }else{ |
| sqlite3_free(zRet); |
| zRet = 0; |
| *pRc = SQLITE_NOMEM; |
| } |
| sqlite3_free(zAppend); |
| sqlite3_free(zIn); |
| } |
| va_end(ap); |
| return zRet; |
| } |
| |
| /* |
| ** Return true if zId must be quoted in order to use it as an SQL |
| ** identifier, or false otherwise. |
| */ |
| static int idxIdentifierRequiresQuotes(const char *zId){ |
| int i; |
| for(i=0; zId[i]; i++){ |
| if( !(zId[i]=='_') |
| && !(zId[i]>='0' && zId[i]<='9') |
| && !(zId[i]>='a' && zId[i]<='z') |
| && !(zId[i]>='A' && zId[i]<='Z') |
| ){ |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| ** This function appends an index column definition suitable for constraint |
| ** pCons to the string passed as zIn and returns the result. |
| */ |
| static char *idxAppendColDefn( |
| int *pRc, /* IN/OUT: Error code */ |
| char *zIn, /* Column defn accumulated so far */ |
| IdxTable *pTab, /* Table index will be created on */ |
| IdxConstraint *pCons |
| ){ |
| char *zRet = zIn; |
| IdxColumn *p = &pTab->aCol[pCons->iCol]; |
| if( zRet ) zRet = idxAppendText(pRc, zRet, ", "); |
| |
| if( idxIdentifierRequiresQuotes(p->zName) ){ |
| zRet = idxAppendText(pRc, zRet, "%Q", p->zName); |
| }else{ |
| zRet = idxAppendText(pRc, zRet, "%s", p->zName); |
| } |
| |
| if( sqlite3_stricmp(p->zColl, pCons->zColl) ){ |
| if( idxIdentifierRequiresQuotes(pCons->zColl) ){ |
| zRet = idxAppendText(pRc, zRet, " COLLATE %Q", pCons->zColl); |
| }else{ |
| zRet = idxAppendText(pRc, zRet, " COLLATE %s", pCons->zColl); |
| } |
| } |
| |
| if( pCons->bDesc ){ |
| zRet = idxAppendText(pRc, zRet, " DESC"); |
| } |
| return zRet; |
| } |
| |
| /* |
| ** Search database dbm for an index compatible with the one idxCreateFromCons() |
| ** would create from arguments pScan, pEq and pTail. If no error occurs and |
| ** such an index is found, return non-zero. Or, if no such index is found, |
| ** return zero. |
| ** |
| ** If an error occurs, set *pRc to an SQLite error code and return zero. |
| */ |
| static int idxFindCompatible( |
| int *pRc, /* OUT: Error code */ |
| sqlite3* dbm, /* Database to search */ |
| IdxScan *pScan, /* Scan for table to search for index on */ |
| IdxConstraint *pEq, /* List of == constraints */ |
| IdxConstraint *pTail /* List of range constraints */ |
| ){ |
| const char *zTbl = pScan->pTab->zName; |
| sqlite3_stmt *pIdxList = 0; |
| IdxConstraint *pIter; |
| int nEq = 0; /* Number of elements in pEq */ |
| int rc; |
| |
| /* Count the elements in list pEq */ |
| for(pIter=pEq; pIter; pIter=pIter->pLink) nEq++; |
| |
| rc = idxPrintfPrepareStmt(dbm, &pIdxList, 0, "PRAGMA index_list=%Q", zTbl); |
| while( rc==SQLITE_OK && sqlite3_step(pIdxList)==SQLITE_ROW ){ |
| int bMatch = 1; |
| IdxConstraint *pT = pTail; |
| sqlite3_stmt *pInfo = 0; |
| const char *zIdx = (const char*)sqlite3_column_text(pIdxList, 1); |
| |
| /* Zero the IdxConstraint.bFlag values in the pEq list */ |
| for(pIter=pEq; pIter; pIter=pIter->pLink) pIter->bFlag = 0; |
| |
| rc = idxPrintfPrepareStmt(dbm, &pInfo, 0, "PRAGMA index_xInfo=%Q", zIdx); |
| while( rc==SQLITE_OK && sqlite3_step(pInfo)==SQLITE_ROW ){ |
| int iIdx = sqlite3_column_int(pInfo, 0); |
| int iCol = sqlite3_column_int(pInfo, 1); |
| const char *zColl = (const char*)sqlite3_column_text(pInfo, 4); |
| |
| if( iIdx<nEq ){ |
| for(pIter=pEq; pIter; pIter=pIter->pLink){ |
| if( pIter->bFlag ) continue; |
| if( pIter->iCol!=iCol ) continue; |
| if( sqlite3_stricmp(pIter->zColl, zColl) ) continue; |
| pIter->bFlag = 1; |
| break; |
| } |
| if( pIter==0 ){ |
| bMatch = 0; |
| break; |
| } |
| }else{ |
| if( pT ){ |
| if( pT->iCol!=iCol || sqlite3_stricmp(pT->zColl, zColl) ){ |
| bMatch = 0; |
| break; |
| } |
| pT = pT->pLink; |
| } |
| } |
| } |
| idxFinalize(&rc, pInfo); |
| |
| if( rc==SQLITE_OK && bMatch ){ |
| sqlite3_finalize(pIdxList); |
| return 1; |
| } |
| } |
| idxFinalize(&rc, pIdxList); |
| |
| *pRc = rc; |
| return 0; |
| } |
| |
| static int idxCreateFromCons( |
| sqlite3expert *p, |
| IdxScan *pScan, |
| IdxConstraint *pEq, |
| IdxConstraint *pTail |
| ){ |
| sqlite3 *dbm = p->dbm; |
| int rc = SQLITE_OK; |
| if( (pEq || pTail) && 0==idxFindCompatible(&rc, dbm, pScan, pEq, pTail) ){ |
| IdxTable *pTab = pScan->pTab; |
| char *zCols = 0; |
| char *zIdx = 0; |
| IdxConstraint *pCons; |
| unsigned int h = 0; |
| const char *zFmt; |
| |
| for(pCons=pEq; pCons; pCons=pCons->pLink){ |
| zCols = idxAppendColDefn(&rc, zCols, pTab, pCons); |
| } |
| for(pCons=pTail; pCons; pCons=pCons->pLink){ |
| zCols = idxAppendColDefn(&rc, zCols, pTab, pCons); |
| } |
| |
| if( rc==SQLITE_OK ){ |
| /* Hash the list of columns to come up with a name for the index */ |
| const char *zTable = pScan->pTab->zName; |
| char *zName; /* Index name */ |
| int i; |
| for(i=0; zCols[i]; i++){ |
| h += ((h<<3) + zCols[i]); |
| } |
| zName = sqlite3_mprintf("%s_idx_%08x", zTable, h); |
| if( zName==0 ){ |
| rc = SQLITE_NOMEM; |
| }else{ |
| if( idxIdentifierRequiresQuotes(zTable) ){ |
| zFmt = "CREATE INDEX '%q' ON %Q(%s)"; |
| }else{ |
| zFmt = "CREATE INDEX %s ON %s(%s)"; |
| } |
| zIdx = sqlite3_mprintf(zFmt, zName, zTable, zCols); |
| if( !zIdx ){ |
| rc = SQLITE_NOMEM; |
| }else{ |
| rc = sqlite3_exec(dbm, zIdx, 0, 0, p->pzErrmsg); |
| idxHashAdd(&rc, &p->hIdx, zName, zIdx); |
| } |
| sqlite3_free(zName); |
| sqlite3_free(zIdx); |
| } |
| } |
| |
| sqlite3_free(zCols); |
| } |
| return rc; |
| } |
| |
| /* |
| ** Return true if list pList (linked by IdxConstraint.pLink) contains |
| ** a constraint compatible with *p. Otherwise return false. |
| */ |
| static int idxFindConstraint(IdxConstraint *pList, IdxConstraint *p){ |
| IdxConstraint *pCmp; |
| for(pCmp=pList; pCmp; pCmp=pCmp->pLink){ |
| if( p->iCol==pCmp->iCol ) return 1; |
| } |
| return 0; |
| } |
| |
| static int idxCreateFromWhere( |
| sqlite3expert *p, |
| IdxScan *pScan, /* Create indexes for this scan */ |
| IdxConstraint *pTail /* range/ORDER BY constraints for inclusion */ |
| ){ |
| IdxConstraint *p1 = 0; |
| IdxConstraint *pCon; |
| int rc; |
| |
| /* Gather up all the == constraints. */ |
| for(pCon=pScan->pEq; pCon; pCon=pCon->pNext){ |
| if( !idxFindConstraint(p1, pCon) && !idxFindConstraint(pTail, pCon) ){ |
| pCon->pLink = p1; |
| p1 = pCon; |
| } |
| } |
| |
| /* Create an index using the == constraints collected above. And the |
| ** range constraint/ORDER BY terms passed in by the caller, if any. */ |
| rc = idxCreateFromCons(p, pScan, p1, pTail); |
| |
| /* If no range/ORDER BY passed by the caller, create a version of the |
| ** index for each range constraint. */ |
| if( pTail==0 ){ |
| for(pCon=pScan->pRange; rc==SQLITE_OK && pCon; pCon=pCon->pNext){ |
| assert( pCon->pLink==0 ); |
| if( !idxFindConstraint(p1, pCon) && !idxFindConstraint(pTail, pCon) ){ |
| rc = idxCreateFromCons(p, pScan, p1, pCon); |
| } |
| } |
| } |
| |
| return rc; |
| } |
| |
| /* |
| ** Create candidate indexes in database [dbm] based on the data in |
| ** linked-list pScan. |
| */ |
| static int idxCreateCandidates(sqlite3expert *p){ |
| int rc = SQLITE_OK; |
| IdxScan *pIter; |
| |
| for(pIter=p->pScan; pIter && rc==SQLITE_OK; pIter=pIter->pNextScan){ |
| rc = idxCreateFromWhere(p, pIter, 0); |
| if( rc==SQLITE_OK && pIter->pOrder ){ |
| rc = idxCreateFromWhere(p, pIter, pIter->pOrder); |
| } |
| } |
| |
| return rc; |
| } |
| |
| /* |
| ** Free all elements of the linked list starting at pConstraint. |
| */ |
| static void idxConstraintFree(IdxConstraint *pConstraint){ |
| IdxConstraint *pNext; |
| IdxConstraint *p; |
| |
| for(p=pConstraint; p; p=pNext){ |
| pNext = p->pNext; |
| sqlite3_free(p); |
| } |
| } |
| |
| /* |
| ** Free all elements of the linked list starting from pScan up until pLast |
| ** (pLast is not freed). |
| */ |
| static void idxScanFree(IdxScan *pScan, IdxScan *pLast){ |
| IdxScan *p; |
| IdxScan *pNext; |
| for(p=pScan; p!=pLast; p=pNext){ |
| pNext = p->pNextScan; |
| idxConstraintFree(p->pOrder); |
| idxConstraintFree(p->pEq); |
| idxConstraintFree(p->pRange); |
| sqlite3_free(p); |
| } |
| } |
| |
| /* |
| ** Free all elements of the linked list starting from pStatement up |
| ** until pLast (pLast is not freed). |
| */ |
| static void idxStatementFree(IdxStatement *pStatement, IdxStatement *pLast){ |
| IdxStatement *p; |
| IdxStatement *pNext; |
| for(p=pStatement; p!=pLast; p=pNext){ |
| pNext = p->pNext; |
| sqlite3_free(p->zEQP); |
| sqlite3_free(p->zIdx); |
| sqlite3_free(p); |
| } |
| } |
| |
| /* |
| ** Free the linked list of IdxTable objects starting at pTab. |
| */ |
| static void idxTableFree(IdxTable *pTab){ |
| IdxTable *pIter; |
| IdxTable *pNext; |
| for(pIter=pTab; pIter; pIter=pNext){ |
| pNext = pIter->pNext; |
| sqlite3_free(pIter); |
| } |
| } |
| |
| /* |
| ** Free the linked list of IdxWrite objects starting at pTab. |
| */ |
| static void idxWriteFree(IdxWrite *pTab){ |
| IdxWrite *pIter; |
| IdxWrite *pNext; |
| for(pIter=pTab; pIter; pIter=pNext){ |
| pNext = pIter->pNext; |
| sqlite3_free(pIter); |
| } |
| } |
| |
| |
| |
| /* |
| ** This function is called after candidate indexes have been created. It |
| ** runs all the queries to see which indexes they prefer, and populates |
| ** IdxStatement.zIdx and IdxStatement.zEQP with the results. |
| */ |
| int idxFindIndexes( |
| sqlite3expert *p, |
| char **pzErr /* OUT: Error message (sqlite3_malloc) */ |
| ){ |
| IdxStatement *pStmt; |
| sqlite3 *dbm = p->dbm; |
| int rc = SQLITE_OK; |
| |
| IdxHash hIdx; |
| idxHashInit(&hIdx); |
| |
| for(pStmt=p->pStatement; rc==SQLITE_OK && pStmt; pStmt=pStmt->pNext){ |
| IdxHashEntry *pEntry; |
| sqlite3_stmt *pExplain = 0; |
| idxHashClear(&hIdx); |
| rc = idxPrintfPrepareStmt(dbm, &pExplain, pzErr, |
| "EXPLAIN QUERY PLAN %s", pStmt->zSql |
| ); |
| while( rc==SQLITE_OK && sqlite3_step(pExplain)==SQLITE_ROW ){ |
| /* int iId = sqlite3_column_int(pExplain, 0); */ |
| /* int iParent = sqlite3_column_int(pExplain, 1); */ |
| /* int iNotUsed = sqlite3_column_int(pExplain, 2); */ |
| const char *zDetail = (const char*)sqlite3_column_text(pExplain, 3); |
| int nDetail = STRLEN(zDetail); |
| int i; |
| |
| for(i=0; i<nDetail; i++){ |
| const char *zIdx = 0; |
| if( memcmp(&zDetail[i], " USING INDEX ", 13)==0 ){ |
| zIdx = &zDetail[i+13]; |
| }else if( memcmp(&zDetail[i], " USING COVERING INDEX ", 22)==0 ){ |
| zIdx = &zDetail[i+22]; |
| } |
| if( zIdx ){ |
| const char *zSql; |
| int nIdx = 0; |
| while( zIdx[nIdx]!='\0' && (zIdx[nIdx]!=' ' || zIdx[nIdx+1]!='(') ){ |
| nIdx++; |
| } |
| zSql = idxHashSearch(&p->hIdx, zIdx, nIdx); |
| if( zSql ){ |
| idxHashAdd(&rc, &hIdx, zSql, 0); |
| if( rc ) goto find_indexes_out; |
| } |
| break; |
| } |
| } |
| |
| if( zDetail[0]!='-' ){ |
| pStmt->zEQP = idxAppendText(&rc, pStmt->zEQP, "%s\n", zDetail); |
| } |
| } |
| |
| for(pEntry=hIdx.pFirst; pEntry; pEntry=pEntry->pNext){ |
| pStmt->zIdx = idxAppendText(&rc, pStmt->zIdx, "%s;\n", pEntry->zKey); |
| } |
| |
| idxFinalize(&rc, pExplain); |
| } |
| |
| find_indexes_out: |
| idxHashClear(&hIdx); |
| return rc; |
| } |
| |
| static int idxAuthCallback( |
| void *pCtx, |
| int eOp, |
| const char *z3, |
| const char *z4, |
| const char *zDb, |
| const char *zTrigger |
| ){ |
| int rc = SQLITE_OK; |
| (void)z4; |
| (void)zTrigger; |
| if( eOp==SQLITE_INSERT || eOp==SQLITE_UPDATE || eOp==SQLITE_DELETE ){ |
| if( sqlite3_stricmp(zDb, "main")==0 ){ |
| sqlite3expert *p = (sqlite3expert*)pCtx; |
| IdxTable *pTab; |
| for(pTab=p->pTable; pTab; pTab=pTab->pNext){ |
| if( 0==sqlite3_stricmp(z3, pTab->zName) ) break; |
| } |
| if( pTab ){ |
| IdxWrite *pWrite; |
| for(pWrite=p->pWrite; pWrite; pWrite=pWrite->pNext){ |
| if( pWrite->pTab==pTab && pWrite->eOp==eOp ) break; |
| } |
| if( pWrite==0 ){ |
| pWrite = idxMalloc(&rc, sizeof(IdxWrite)); |
| if( rc==SQLITE_OK ){ |
| pWrite->pTab = pTab; |
| pWrite->eOp = eOp; |
| pWrite->pNext = p->pWrite; |
| p->pWrite = pWrite; |
| } |
| } |
| } |
| } |
| } |
| return rc; |
| } |
| |
| static int idxProcessOneTrigger( |
| sqlite3expert *p, |
| IdxWrite *pWrite, |
| char **pzErr |
| ){ |
| static const char *zInt = UNIQUE_TABLE_NAME; |
| static const char *zDrop = "DROP TABLE " UNIQUE_TABLE_NAME; |
| IdxTable *pTab = pWrite->pTab; |
| const char *zTab = pTab->zName; |
| const char *zSql = |
| "SELECT 'CREATE TEMP' || substr(sql, 7) FROM sqlite_master " |
| "WHERE tbl_name = %Q AND type IN ('table', 'trigger') " |
| "ORDER BY type;"; |
| sqlite3_stmt *pSelect = 0; |
| int rc = SQLITE_OK; |
| char *zWrite = 0; |
| |
| /* Create the table and its triggers in the temp schema */ |
| rc = idxPrintfPrepareStmt(p->db, &pSelect, pzErr, zSql, zTab, zTab); |
| while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSelect) ){ |
| const char *zCreate = (const char*)sqlite3_column_text(pSelect, 0); |
| rc = sqlite3_exec(p->dbv, zCreate, 0, 0, pzErr); |
| } |
| idxFinalize(&rc, pSelect); |
| |
| /* Rename the table in the temp schema to zInt */ |
| if( rc==SQLITE_OK ){ |
| char *z = sqlite3_mprintf("ALTER TABLE temp.%Q RENAME TO %Q", zTab, zInt); |
| if( z==0 ){ |
| rc = SQLITE_NOMEM; |
| }else{ |
| rc = sqlite3_exec(p->dbv, z, 0, 0, pzErr); |
| sqlite3_free(z); |
| } |
| } |
| |
| switch( pWrite->eOp ){ |
| case SQLITE_INSERT: { |
| int i; |
| zWrite = idxAppendText(&rc, zWrite, "INSERT INTO %Q VALUES(", zInt); |
| for(i=0; i<pTab->nCol; i++){ |
| zWrite = idxAppendText(&rc, zWrite, "%s?", i==0 ? "" : ", "); |
| } |
| zWrite = idxAppendText(&rc, zWrite, ")"); |
| break; |
| } |
| case SQLITE_UPDATE: { |
| int i; |
| zWrite = idxAppendText(&rc, zWrite, "UPDATE %Q SET ", zInt); |
| for(i=0; i<pTab->nCol; i++){ |
| zWrite = idxAppendText(&rc, zWrite, "%s%Q=?", i==0 ? "" : ", ", |
| pTab->aCol[i].zName |
| ); |
| } |
| break; |
| } |
| default: { |
| assert( pWrite->eOp==SQLITE_DELETE ); |
| if( rc==SQLITE_OK ){ |
| zWrite = sqlite3_mprintf("DELETE FROM %Q", zInt); |
| if( zWrite==0 ) rc = SQLITE_NOMEM; |
| } |
| } |
| } |
| |
| if( rc==SQLITE_OK ){ |
| sqlite3_stmt *pX = 0; |
| rc = sqlite3_prepare_v2(p->dbv, zWrite, -1, &pX, 0); |
| idxFinalize(&rc, pX); |
| if( rc!=SQLITE_OK ){ |
| idxDatabaseError(p->dbv, pzErr); |
| } |
| } |
| sqlite3_free(zWrite); |
| |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_exec(p->dbv, zDrop, 0, 0, pzErr); |
| } |
| |
| return rc; |
| } |
| |
| static int idxProcessTriggers(sqlite3expert *p, char **pzErr){ |
| int rc = SQLITE_OK; |
| IdxWrite *pEnd = 0; |
| IdxWrite *pFirst = p->pWrite; |
| |
| while( rc==SQLITE_OK && pFirst!=pEnd ){ |
| IdxWrite *pIter; |
| for(pIter=pFirst; rc==SQLITE_OK && pIter!=pEnd; pIter=pIter->pNext){ |
| rc = idxProcessOneTrigger(p, pIter, pzErr); |
| } |
| pEnd = pFirst; |
| pFirst = p->pWrite; |
| } |
| |
| return rc; |
| } |
| |
| |
| static int idxCreateVtabSchema(sqlite3expert *p, char **pzErrmsg){ |
| int rc = idxRegisterVtab(p); |
| sqlite3_stmt *pSchema = 0; |
| |
| /* For each table in the main db schema: |
| ** |
| ** 1) Add an entry to the p->pTable list, and |
| ** 2) Create the equivalent virtual table in dbv. |
| */ |
| rc = idxPrepareStmt(p->db, &pSchema, pzErrmsg, |
| "SELECT type, name, sql, 1 FROM sqlite_master " |
| "WHERE type IN ('table','view') AND name NOT LIKE 'sqlite_%%' " |
| " UNION ALL " |
| "SELECT type, name, sql, 2 FROM sqlite_master " |
| "WHERE type = 'trigger'" |
| " AND tbl_name IN(SELECT name FROM sqlite_master WHERE type = 'view') " |
| "ORDER BY 4, 1" |
| ); |
| while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSchema) ){ |
| const char *zType = (const char*)sqlite3_column_text(pSchema, 0); |
| const char *zName = (const char*)sqlite3_column_text(pSchema, 1); |
| const char *zSql = (const char*)sqlite3_column_text(pSchema, 2); |
| |
| if( zType[0]=='v' || zType[1]=='r' ){ |
| rc = sqlite3_exec(p->dbv, zSql, 0, 0, pzErrmsg); |
| }else{ |
| IdxTable *pTab; |
| rc = idxGetTableInfo(p->db, zName, &pTab, pzErrmsg); |
| if( rc==SQLITE_OK ){ |
| int i; |
| char *zInner = 0; |
| char *zOuter = 0; |
| pTab->pNext = p->pTable; |
| p->pTable = pTab; |
| |
| /* The statement the vtab will pass to sqlite3_declare_vtab() */ |
| zInner = idxAppendText(&rc, 0, "CREATE TABLE x("); |
| for(i=0; i<pTab->nCol; i++){ |
| zInner = idxAppendText(&rc, zInner, "%s%Q COLLATE %s", |
| (i==0 ? "" : ", "), pTab->aCol[i].zName, pTab->aCol[i].zColl |
| ); |
| } |
| zInner = idxAppendText(&rc, zInner, ")"); |
| |
| /* The CVT statement to create the vtab */ |
| zOuter = idxAppendText(&rc, 0, |
| "CREATE VIRTUAL TABLE %Q USING expert(%Q)", zName, zInner |
| ); |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_exec(p->dbv, zOuter, 0, 0, pzErrmsg); |
| } |
| sqlite3_free(zInner); |
| sqlite3_free(zOuter); |
| } |
| } |
| } |
| idxFinalize(&rc, pSchema); |
| return rc; |
| } |
| |
| struct IdxSampleCtx { |
| int iTarget; |
| double target; /* Target nRet/nRow value */ |
| double nRow; /* Number of rows seen */ |
| double nRet; /* Number of rows returned */ |
| }; |
| |
| static void idxSampleFunc( |
| sqlite3_context *pCtx, |
| int argc, |
| sqlite3_value **argv |
| ){ |
| struct IdxSampleCtx *p = (struct IdxSampleCtx*)sqlite3_user_data(pCtx); |
| int bRet; |
| |
| (void)argv; |
| assert( argc==0 ); |
| if( p->nRow==0.0 ){ |
| bRet = 1; |
| }else{ |
| bRet = (p->nRet / p->nRow) <= p->target; |
| if( bRet==0 ){ |
| unsigned short rnd; |
| sqlite3_randomness(2, (void*)&rnd); |
| bRet = ((int)rnd % 100) <= p->iTarget; |
| } |
| } |
| |
| sqlite3_result_int(pCtx, bRet); |
| p->nRow += 1.0; |
| p->nRet += (double)bRet; |
| } |
| |
| struct IdxRemCtx { |
| int nSlot; |
| struct IdxRemSlot { |
| int eType; /* SQLITE_NULL, INTEGER, REAL, TEXT, BLOB */ |
| i64 iVal; /* SQLITE_INTEGER value */ |
| double rVal; /* SQLITE_FLOAT value */ |
| int nByte; /* Bytes of space allocated at z */ |
| int n; /* Size of buffer z */ |
| char *z; /* SQLITE_TEXT/BLOB value */ |
| } aSlot[1]; |
| }; |
| |
| /* |
| ** Implementation of scalar function rem(). |
| */ |
| static void idxRemFunc( |
| sqlite3_context *pCtx, |
| int argc, |
| sqlite3_value **argv |
| ){ |
| struct IdxRemCtx *p = (struct IdxRemCtx*)sqlite3_user_data(pCtx); |
| struct IdxRemSlot *pSlot; |
| int iSlot; |
| assert( argc==2 ); |
| |
| iSlot = sqlite3_value_int(argv[0]); |
| assert( iSlot<=p->nSlot ); |
| pSlot = &p->aSlot[iSlot]; |
| |
| switch( pSlot->eType ){ |
| case SQLITE_NULL: |
| /* no-op */ |
| break; |
| |
| case SQLITE_INTEGER: |
| sqlite3_result_int64(pCtx, pSlot->iVal); |
| break; |
| |
| case SQLITE_FLOAT: |
| sqlite3_result_double(pCtx, pSlot->rVal); |
| break; |
| |
| case SQLITE_BLOB: |
| sqlite3_result_blob(pCtx, pSlot->z, pSlot->n, SQLITE_TRANSIENT); |
| break; |
| |
| case SQLITE_TEXT: |
| sqlite3_result_text(pCtx, pSlot->z, pSlot->n, SQLITE_TRANSIENT); |
| break; |
| } |
| |
| pSlot->eType = sqlite3_value_type(argv[1]); |
| switch( pSlot->eType ){ |
| case SQLITE_NULL: |
| /* no-op */ |
| break; |
| |
| case SQLITE_INTEGER: |
| pSlot->iVal = sqlite3_value_int64(argv[1]); |
| break; |
| |
| case SQLITE_FLOAT: |
| pSlot->rVal = sqlite3_value_double(argv[1]); |
| break; |
| |
| case SQLITE_BLOB: |
| case SQLITE_TEXT: { |
| int nByte = sqlite3_value_bytes(argv[1]); |
| if( nByte>pSlot->nByte ){ |
| char *zNew = (char*)sqlite3_realloc(pSlot->z, nByte*2); |
| if( zNew==0 ){ |
| sqlite3_result_error_nomem(pCtx); |
| return; |
| } |
| pSlot->nByte = nByte*2; |
| pSlot->z = zNew; |
| } |
| pSlot->n = nByte; |
| if( pSlot->eType==SQLITE_BLOB ){ |
| memcpy(pSlot->z, sqlite3_value_blob(argv[1]), nByte); |
| }else{ |
| memcpy(pSlot->z, sqlite3_value_text(argv[1]), nByte); |
| } |
| break; |
| } |
| } |
| } |
| |
| static int idxLargestIndex(sqlite3 *db, int *pnMax, char **pzErr){ |
| int rc = SQLITE_OK; |
| const char *zMax = |
| "SELECT max(i.seqno) FROM " |
| " sqlite_master AS s, " |
| " pragma_index_list(s.name) AS l, " |
| " pragma_index_info(l.name) AS i " |
| "WHERE s.type = 'table'"; |
| sqlite3_stmt *pMax = 0; |
| |
| *pnMax = 0; |
| rc = idxPrepareStmt(db, &pMax, pzErr, zMax); |
| if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pMax) ){ |
| *pnMax = sqlite3_column_int(pMax, 0) + 1; |
| } |
| idxFinalize(&rc, pMax); |
| |
| return rc; |
| } |
| |
| static int idxPopulateOneStat1( |
| sqlite3expert *p, |
| sqlite3_stmt *pIndexXInfo, |
| sqlite3_stmt *pWriteStat, |
| const char *zTab, |
| const char *zIdx, |
| char **pzErr |
| ){ |
| char *zCols = 0; |
| char *zOrder = 0; |
| char *zQuery = 0; |
| int nCol = 0; |
| int i; |
| sqlite3_stmt *pQuery = 0; |
| int *aStat = 0; |
| int rc = SQLITE_OK; |
| |
| assert( p->iSample>0 ); |
| |
| /* Formulate the query text */ |
| sqlite3_bind_text(pIndexXInfo, 1, zIdx, -1, SQLITE_STATIC); |
| while( SQLITE_OK==rc && SQLITE_ROW==sqlite3_step(pIndexXInfo) ){ |
| const char *zComma = zCols==0 ? "" : ", "; |
| const char *zName = (const char*)sqlite3_column_text(pIndexXInfo, 0); |
| const char *zColl = (const char*)sqlite3_column_text(pIndexXInfo, 1); |
| zCols = idxAppendText(&rc, zCols, |
| "%sx.%Q IS rem(%d, x.%Q) COLLATE %s", zComma, zName, nCol, zName, zColl |
| ); |
| zOrder = idxAppendText(&rc, zOrder, "%s%d", zComma, ++nCol); |
| } |
| sqlite3_reset(pIndexXInfo); |
| if( rc==SQLITE_OK ){ |
| if( p->iSample==100 ){ |
| zQuery = sqlite3_mprintf( |
| "SELECT %s FROM %Q x ORDER BY %s", zCols, zTab, zOrder |
| ); |
| }else{ |
| zQuery = sqlite3_mprintf( |
| "SELECT %s FROM temp."UNIQUE_TABLE_NAME" x ORDER BY %s", zCols, zOrder |
| ); |
| } |
| } |
| sqlite3_free(zCols); |
| sqlite3_free(zOrder); |
| |
| /* Formulate the query text */ |
| if( rc==SQLITE_OK ){ |
| sqlite3 *dbrem = (p->iSample==100 ? p->db : p->dbv); |
| rc = idxPrepareStmt(dbrem, &pQuery, pzErr, zQuery); |
| } |
| sqlite3_free(zQuery); |
| |
| if( rc==SQLITE_OK ){ |
| aStat = (int*)idxMalloc(&rc, sizeof(int)*(nCol+1)); |
| } |
| if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pQuery) ){ |
| IdxHashEntry *pEntry; |
| char *zStat = 0; |
| for(i=0; i<=nCol; i++) aStat[i] = 1; |
| while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pQuery) ){ |
| aStat[0]++; |
| for(i=0; i<nCol; i++){ |
| if( sqlite3_column_int(pQuery, i)==0 ) break; |
| } |
| for(/*no-op*/; i<nCol; i++){ |
| aStat[i+1]++; |
| } |
| } |
| |
| if( rc==SQLITE_OK ){ |
| int s0 = aStat[0]; |
| zStat = sqlite3_mprintf("%d", s0); |
| if( zStat==0 ) rc = SQLITE_NOMEM; |
| for(i=1; rc==SQLITE_OK && i<=nCol; i++){ |
| zStat = idxAppendText(&rc, zStat, " %d", (s0+aStat[i]/2) / aStat[i]); |
| } |
| } |
| |
| if( rc==SQLITE_OK ){ |
| sqlite3_bind_text(pWriteStat, 1, zTab, -1, SQLITE_STATIC); |
| sqlite3_bind_text(pWriteStat, 2, zIdx, -1, SQLITE_STATIC); |
| sqlite3_bind_text(pWriteStat, 3, zStat, -1, SQLITE_STATIC); |
| sqlite3_step(pWriteStat); |
| rc = sqlite3_reset(pWriteStat); |
| } |
| |
| pEntry = idxHashFind(&p->hIdx, zIdx, STRLEN(zIdx)); |
| if( pEntry ){ |
| assert( pEntry->zVal2==0 ); |
| pEntry->zVal2 = zStat; |
| }else{ |
| sqlite3_free(zStat); |
| } |
| } |
| sqlite3_free(aStat); |
| idxFinalize(&rc, pQuery); |
| |
| return rc; |
| } |
| |
| static int idxBuildSampleTable(sqlite3expert *p, const char *zTab){ |
| int rc; |
| char *zSql; |
| |
| rc = sqlite3_exec(p->dbv,"DROP TABLE IF EXISTS temp."UNIQUE_TABLE_NAME,0,0,0); |
| if( rc!=SQLITE_OK ) return rc; |
| |
| zSql = sqlite3_mprintf( |
| "CREATE TABLE temp." UNIQUE_TABLE_NAME " AS SELECT * FROM %Q", zTab |
| ); |
| if( zSql==0 ) return SQLITE_NOMEM; |
| rc = sqlite3_exec(p->dbv, zSql, 0, 0, 0); |
| sqlite3_free(zSql); |
| |
| return rc; |
| } |
| |
| /* |
| ** This function is called as part of sqlite3_expert_analyze(). Candidate |
| ** indexes have already been created in database sqlite3expert.dbm, this |
| ** function populates sqlite_stat1 table in the same database. |
| ** |
| ** The stat1 data is generated by querying the |
| */ |
| static int idxPopulateStat1(sqlite3expert *p, char **pzErr){ |
| int rc = SQLITE_OK; |
| int nMax =0; |
| struct IdxRemCtx *pCtx = 0; |
| struct IdxSampleCtx samplectx; |
| int i; |
| i64 iPrev = -100000; |
| sqlite3_stmt *pAllIndex = 0; |
| sqlite3_stmt *pIndexXInfo = 0; |
| sqlite3_stmt *pWrite = 0; |
| |
| const char *zAllIndex = |
| "SELECT s.rowid, s.name, l.name FROM " |
| " sqlite_master AS s, " |
| " pragma_index_list(s.name) AS l " |
| "WHERE s.type = 'table'"; |
| const char *zIndexXInfo = |
| "SELECT name, coll FROM pragma_index_xinfo(?) WHERE key"; |
| const char *zWrite = "INSERT INTO sqlite_stat1 VALUES(?, ?, ?)"; |
| |
| /* If iSample==0, no sqlite_stat1 data is required. */ |
| if( p->iSample==0 ) return SQLITE_OK; |
| |
| rc = idxLargestIndex(p->dbm, &nMax, pzErr); |
| if( nMax<=0 || rc!=SQLITE_OK ) return rc; |
| |
| rc = sqlite3_exec(p->dbm, "ANALYZE; PRAGMA writable_schema=1", 0, 0, 0); |
| |
| if( rc==SQLITE_OK ){ |
| int nByte = sizeof(struct IdxRemCtx) + (sizeof(struct IdxRemSlot) * nMax); |
| pCtx = (struct IdxRemCtx*)idxMalloc(&rc, nByte); |
| } |
| |
| if( rc==SQLITE_OK ){ |
| sqlite3 *dbrem = (p->iSample==100 ? p->db : p->dbv); |
| rc = sqlite3_create_function( |
| dbrem, "rem", 2, SQLITE_UTF8, (void*)pCtx, idxRemFunc, 0, 0 |
| ); |
| } |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_create_function( |
| p->db, "sample", 0, SQLITE_UTF8, (void*)&samplectx, idxSampleFunc, 0, 0 |
| ); |
| } |
| |
| if( rc==SQLITE_OK ){ |
| pCtx->nSlot = nMax+1; |
| rc = idxPrepareStmt(p->dbm, &pAllIndex, pzErr, zAllIndex); |
| } |
| if( rc==SQLITE_OK ){ |
| rc = idxPrepareStmt(p->dbm, &pIndexXInfo, pzErr, zIndexXInfo); |
| } |
| if( rc==SQLITE_OK ){ |
| rc = idxPrepareStmt(p->dbm, &pWrite, pzErr, zWrite); |
| } |
| |
| while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pAllIndex) ){ |
| i64 iRowid = sqlite3_column_int64(pAllIndex, 0); |
| const char *zTab = (const char*)sqlite3_column_text(pAllIndex, 1); |
| const char *zIdx = (const char*)sqlite3_column_text(pAllIndex, 2); |
| if( p->iSample<100 && iPrev!=iRowid ){ |
| samplectx.target = (double)p->iSample / 100.0; |
| samplectx.iTarget = p->iSample; |
| samplectx.nRow = 0.0; |
| samplectx.nRet = 0.0; |
| rc = idxBuildSampleTable(p, zTab); |
| if( rc!=SQLITE_OK ) break; |
| } |
| rc = idxPopulateOneStat1(p, pIndexXInfo, pWrite, zTab, zIdx, pzErr); |
| iPrev = iRowid; |
| } |
| if( rc==SQLITE_OK && p->iSample<100 ){ |
| rc = sqlite3_exec(p->dbv, |
| "DROP TABLE IF EXISTS temp." UNIQUE_TABLE_NAME, 0,0,0 |
| ); |
| } |
| |
| idxFinalize(&rc, pAllIndex); |
| idxFinalize(&rc, pIndexXInfo); |
| idxFinalize(&rc, pWrite); |
| |
| for(i=0; i<pCtx->nSlot; i++){ |
| sqlite3_free(pCtx->aSlot[i].z); |
| } |
| sqlite3_free(pCtx); |
| |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_exec(p->dbm, "ANALYZE sqlite_master", 0, 0, 0); |
| } |
| |
| sqlite3_exec(p->db, "DROP TABLE IF EXISTS temp."UNIQUE_TABLE_NAME,0,0,0); |
| return rc; |
| } |
| |
| /* |
| ** Allocate a new sqlite3expert object. |
| */ |
| sqlite3expert *sqlite3_expert_new(sqlite3 *db, char **pzErrmsg){ |
| int rc = SQLITE_OK; |
| sqlite3expert *pNew; |
| |
| pNew = (sqlite3expert*)idxMalloc(&rc, sizeof(sqlite3expert)); |
| |
| /* Open two in-memory databases to work with. The "vtab database" (dbv) |
| ** will contain a virtual table corresponding to each real table in |
| ** the user database schema, and a copy of each view. It is used to |
| ** collect information regarding the WHERE, ORDER BY and other clauses |
| ** of the user's query. |
| */ |
| if( rc==SQLITE_OK ){ |
| pNew->db = db; |
| pNew->iSample = 100; |
| rc = sqlite3_open(":memory:", &pNew->dbv); |
| } |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_open(":memory:", &pNew->dbm); |
| if( rc==SQLITE_OK ){ |
| sqlite3_db_config(pNew->dbm, SQLITE_DBCONFIG_TRIGGER_EQP, 1, (int*)0); |
| } |
| } |
| |
| |
| /* Copy the entire schema of database [db] into [dbm]. */ |
| if( rc==SQLITE_OK ){ |
| sqlite3_stmt *pSql; |
| rc = idxPrintfPrepareStmt(pNew->db, &pSql, pzErrmsg, |
| "SELECT sql FROM sqlite_master WHERE name NOT LIKE 'sqlite_%%'" |
| " AND sql NOT LIKE 'CREATE VIRTUAL %%'" |
| ); |
| while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSql) ){ |
| const char *zSql = (const char*)sqlite3_column_text(pSql, 0); |
| rc = sqlite3_exec(pNew->dbm, zSql, 0, 0, pzErrmsg); |
| } |
| idxFinalize(&rc, pSql); |
| } |
| |
| /* Create the vtab schema */ |
| if( rc==SQLITE_OK ){ |
| rc = idxCreateVtabSchema(pNew, pzErrmsg); |
| } |
| |
| /* Register the auth callback with dbv */ |
| if( rc==SQLITE_OK ){ |
| sqlite3_set_authorizer(pNew->dbv, idxAuthCallback, (void*)pNew); |
| } |
| |
| /* If an error has occurred, free the new object and reutrn NULL. Otherwise, |
| ** return the new sqlite3expert handle. */ |
| if( rc!=SQLITE_OK ){ |
| sqlite3_expert_destroy(pNew); |
| pNew = 0; |
| } |
| return pNew; |
| } |
| |
| /* |
| ** Configure an sqlite3expert object. |
| */ |
| int sqlite3_expert_config(sqlite3expert *p, int op, ...){ |
| int rc = SQLITE_OK; |
| va_list ap; |
| va_start(ap, op); |
| switch( op ){ |
| case EXPERT_CONFIG_SAMPLE: { |
| int iVal = va_arg(ap, int); |
| if( iVal<0 ) iVal = 0; |
| if( iVal>100 ) iVal = 100; |
| p->iSample = iVal; |
| break; |
| } |
| default: |
| rc = SQLITE_NOTFOUND; |
| break; |
| } |
| |
| va_end(ap); |
| return rc; |
| } |
| |
| /* |
| ** Add an SQL statement to the analysis. |
| */ |
| int sqlite3_expert_sql( |
| sqlite3expert *p, /* From sqlite3_expert_new() */ |
| const char *zSql, /* SQL statement to add */ |
| char **pzErr /* OUT: Error message (if any) */ |
| ){ |
| IdxScan *pScanOrig = p->pScan; |
| IdxStatement *pStmtOrig = p->pStatement; |
| int rc = SQLITE_OK; |
| const char *zStmt = zSql; |
| |
| if( p->bRun ) return SQLITE_MISUSE; |
| |
| while( rc==SQLITE_OK && zStmt && zStmt[0] ){ |
| sqlite3_stmt *pStmt = 0; |
| rc = sqlite3_prepare_v2(p->dbv, zStmt, -1, &pStmt, &zStmt); |
| if( rc==SQLITE_OK ){ |
| if( pStmt ){ |
| IdxStatement *pNew; |
| const char *z = sqlite3_sql(pStmt); |
| int n = STRLEN(z); |
| pNew = (IdxStatement*)idxMalloc(&rc, sizeof(IdxStatement) + n+1); |
| if( rc==SQLITE_OK ){ |
| pNew->zSql = (char*)&pNew[1]; |
| memcpy(pNew->zSql, z, n+1); |
| pNew->pNext = p->pStatement; |
| if( p->pStatement ) pNew->iId = p->pStatement->iId+1; |
| p->pStatement = pNew; |
| } |
| sqlite3_finalize(pStmt); |
| } |
| }else{ |
| idxDatabaseError(p->dbv, pzErr); |
| } |
| } |
| |
| if( rc!=SQLITE_OK ){ |
| idxScanFree(p->pScan, pScanOrig); |
| idxStatementFree(p->pStatement, pStmtOrig); |
| p->pScan = pScanOrig; |
| p->pStatement = pStmtOrig; |
| } |
| |
| return rc; |
| } |
| |
| int sqlite3_expert_analyze(sqlite3expert *p, char **pzErr){ |
| int rc; |
| IdxHashEntry *pEntry; |
| |
| /* Do trigger processing to collect any extra IdxScan structures */ |
| rc = idxProcessTriggers(p, pzErr); |
| |
| /* Create candidate indexes within the in-memory database file */ |
| if( rc==SQLITE_OK ){ |
| rc = idxCreateCandidates(p); |
| } |
| |
| /* Generate the stat1 data */ |
| if( rc==SQLITE_OK ){ |
| rc = idxPopulateStat1(p, pzErr); |
| } |
| |
| /* Formulate the EXPERT_REPORT_CANDIDATES text */ |
| for(pEntry=p->hIdx.pFirst; pEntry; pEntry=pEntry->pNext){ |
| p->zCandidates = idxAppendText(&rc, p->zCandidates, |
| "%s;%s%s\n", pEntry->zVal, |
| pEntry->zVal2 ? " -- stat1: " : "", pEntry->zVal2 |
| ); |
| } |
| |
| /* Figure out which of the candidate indexes are preferred by the query |
| ** planner and report the results to the user. */ |
| if( rc==SQLITE_OK ){ |
| rc = idxFindIndexes(p, pzErr); |
| } |
| |
| if( rc==SQLITE_OK ){ |
| p->bRun = 1; |
| } |
| return rc; |
| } |
| |
| /* |
| ** Return the total number of statements that have been added to this |
| ** sqlite3expert using sqlite3_expert_sql(). |
| */ |
| int sqlite3_expert_count(sqlite3expert *p){ |
| int nRet = 0; |
| if( p->pStatement ) nRet = p->pStatement->iId+1; |
| return nRet; |
| } |
| |
| /* |
| ** Return a component of the report. |
| */ |
| const char *sqlite3_expert_report(sqlite3expert *p, int iStmt, int eReport){ |
| const char *zRet = 0; |
| IdxStatement *pStmt; |
| |
| if( p->bRun==0 ) return 0; |
| for(pStmt=p->pStatement; pStmt && pStmt->iId!=iStmt; pStmt=pStmt->pNext); |
| switch( eReport ){ |
| case EXPERT_REPORT_SQL: |
| if( pStmt ) zRet = pStmt->zSql; |
| break; |
| case EXPERT_REPORT_INDEXES: |
| if( pStmt ) zRet = pStmt->zIdx; |
| break; |
| case EXPERT_REPORT_PLAN: |
| if( pStmt ) zRet = pStmt->zEQP; |
| break; |
| case EXPERT_REPORT_CANDIDATES: |
| zRet = p->zCandidates; |
| break; |
| } |
| return zRet; |
| } |
| |
| /* |
| ** Free an sqlite3expert object. |
| */ |
| void sqlite3_expert_destroy(sqlite3expert *p){ |
| if( p ){ |
| sqlite3_close(p->dbm); |
| sqlite3_close(p->dbv); |
| idxScanFree(p->pScan, 0); |
| idxStatementFree(p->pStatement, 0); |
| idxTableFree(p->pTable); |
| idxWriteFree(p->pWrite); |
| idxHashClear(&p->hIdx); |
| sqlite3_free(p->zCandidates); |
| sqlite3_free(p); |
| } |
| } |
| |
| #endif /* ifndef SQLITE_OMIT_VIRTUAL_TABLE */ |
| |
| /************************* End ../ext/expert/sqlite3expert.c ********************/ |
| |
| #if defined(SQLITE_ENABLE_SESSION) |
| /* |
| ** State information for a single open session |
| */ |
| typedef struct OpenSession OpenSession; |
| struct OpenSession { |
| char *zName; /* Symbolic name for this session */ |
| int nFilter; /* Number of xFilter rejection GLOB patterns */ |
| char **azFilter; /* Array of xFilter rejection GLOB patterns */ |
| sqlite3_session *p; /* The open session */ |
| }; |
| #endif |
| |
| /* |
| ** Shell output mode information from before ".explain on", |
| ** saved so that it can be restored by ".explain off" |
| */ |
| typedef struct SavedModeInfo SavedModeInfo; |
| struct SavedModeInfo { |
| int valid; /* Is there legit data in here? */ |
| int mode; /* Mode prior to ".explain on" */ |
| int showHeader; /* The ".header" setting prior to ".explain on" */ |
| int colWidth[100]; /* Column widths prior to ".explain on" */ |
| }; |
| |
| typedef struct ExpertInfo ExpertInfo; |
| struct ExpertInfo { |
| sqlite3expert *pExpert; |
| int bVerbose; |
| }; |
| |
| /* A single line in the EQP output */ |
| typedef struct EQPGraphRow EQPGraphRow; |
| struct EQPGraphRow { |
| int iEqpId; /* ID for this row */ |
| int iParentId; /* ID of the parent row */ |
| EQPGraphRow *pNext; /* Next row in sequence */ |
| char zText[1]; /* Text to display for this row */ |
| }; |
| |
| /* All EQP output is collected into an instance of the following */ |
| typedef struct EQPGraph EQPGraph; |
| struct EQPGraph { |
| EQPGraphRow *pRow; /* Linked list of all rows of the EQP output */ |
| EQPGraphRow *pLast; /* Last element of the pRow list */ |
| char zPrefix[100]; /* Graph prefix */ |
| }; |
| |
| /* |
| ** State information about the database connection is contained in an |
| ** instance of the following structure. |
| */ |
| typedef struct ShellState ShellState; |
| struct ShellState { |
| sqlite3 *db; /* The database */ |
| u8 autoExplain; /* Automatically turn on .explain mode */ |
| u8 autoEQP; /* Run EXPLAIN QUERY PLAN prior to seach SQL stmt */ |
| u8 autoEQPtest; /* autoEQP is in test mode */ |
| u8 autoEQPtrace; /* autoEQP is in trace mode */ |
| u8 statsOn; /* True to display memory stats before each finalize */ |
| u8 scanstatsOn; /* True to display scan stats before each finalize */ |
| u8 openMode; /* SHELL_OPEN_NORMAL, _APPENDVFS, or _ZIPFILE */ |
| u8 doXdgOpen; /* Invoke start/open/xdg-open in output_reset() */ |
| u8 nEqpLevel; /* Depth of the EQP output graph */ |
| u8 eTraceType; /* SHELL_TRACE_* value for type of trace */ |
| unsigned mEqpLines; /* Mask of veritical lines in the EQP output graph */ |
| int outCount; /* Revert to stdout when reaching zero */ |
| int cnt; /* Number of records displayed so far */ |
| int lineno; /* Line number of last line read from in */ |
| FILE *in; /* Read commands from this stream */ |
| FILE *out; /* Write results here */ |
| FILE *traceOut; /* Output for sqlite3_trace() */ |
| int nErr; /* Number of errors seen */ |
| int mode; /* An output mode setting */ |
| int modePrior; /* Saved mode */ |
| int cMode; /* temporary output mode for the current query */ |
| int normalMode; /* Output mode before ".explain on" */ |
| int writableSchema; /* True if PRAGMA writable_schema=ON */ |
| int showHeader; /* True to show column names in List or Column mode */ |
| int nCheck; /* Number of ".check" commands run */ |
| unsigned nProgress; /* Number of progress callbacks encountered */ |
| unsigned mxProgress; /* Maximum progress callbacks before failing */ |
| unsigned flgProgress; /* Flags for the progress callback */ |
| unsigned shellFlgs; /* Various flags */ |
| sqlite3_int64 szMax; /* --maxsize argument to .open */ |
| char *zDestTable; /* Name of destination table when MODE_Insert */ |
| char *zTempFile; /* Temporary file that might need deleting */ |
| char zTestcase[30]; /* Name of current test case */ |
| char colSeparator[20]; /* Column separator character for several modes */ |
| char rowSeparator[20]; /* Row separator character for MODE_Ascii */ |
| char colSepPrior[20]; /* Saved column separator */ |
| char rowSepPrior[20]; /* Saved row separator */ |
| int colWidth[100]; /* Requested width of each column when in column mode*/ |
| int actualWidth[100]; /* Actual width of each column */ |
| char nullValue[20]; /* The text to print when a NULL comes back from |
| ** the database */ |
| char outfile[FILENAME_MAX]; /* Filename for *out */ |
| const char *zDbFilename; /* name of the database file */ |
| char *zFreeOnClose; /* Filename to free when closing */ |
| const char *zVfs; /* Name of VFS to use */ |
| sqlite3_stmt *pStmt; /* Current statement if any. */ |
| FILE *pLog; /* Write log output here */ |
| int *aiIndent; /* Array of indents used in MODE_Explain */ |
| int nIndent; /* Size of array aiIndent[] */ |
| int iIndent; /* Index of current op in aiIndent[] */ |
| EQPGraph sGraph; /* Information for the graphical EXPLAIN QUERY PLAN */ |
| #if defined(SQLITE_ENABLE_SESSION) |
| int nSession; /* Number of active sessions */ |
| OpenSession aSession[4]; /* Array of sessions. [0] is in focus. */ |
| #endif |
| ExpertInfo expert; /* Valid if previous command was ".expert OPT..." */ |
| }; |
| |
| |
| /* Allowed values for ShellState.autoEQP |
| */ |
| #define AUTOEQP_off 0 /* Automatic EXPLAIN QUERY PLAN is off */ |
| #define AUTOEQP_on 1 /* Automatic EQP is on */ |
| #define AUTOEQP_trigger 2 /* On and also show plans for triggers */ |
| #define AUTOEQP_full 3 /* Show full EXPLAIN */ |
| |
| /* Allowed values for ShellState.openMode |
| */ |
| #define SHELL_OPEN_UNSPEC 0 /* No open-mode specified */ |
| #define SHELL_OPEN_NORMAL 1 /* Normal database file */ |
| #define SHELL_OPEN_APPENDVFS 2 /* Use appendvfs */ |
| #define SHELL_OPEN_ZIPFILE 3 /* Use the zipfile virtual table */ |
| #define SHELL_OPEN_READONLY 4 /* Open a normal database read-only */ |
| #define SHELL_OPEN_DESERIALIZE 5 /* Open using sqlite3_deserialize() */ |
| #define SHELL_OPEN_HEXDB 6 /* Use "dbtotxt" output as data source */ |
| |
| /* Allowed values for ShellState.eTraceType |
| */ |
| #define SHELL_TRACE_PLAIN 0 /* Show input SQL text */ |
| #define SHELL_TRACE_EXPANDED 1 /* Show expanded SQL text */ |
| #define SHELL_TRACE_NORMALIZED 2 /* Show normalized SQL text */ |
| |
| /* Bits in the ShellState.flgProgress variable */ |
| #define SHELL_PROGRESS_QUIET 0x01 /* Omit announcing every progress callback */ |
| #define SHELL_PROGRESS_RESET 0x02 /* Reset the count when the progres |
| ** callback limit is reached, and for each |
| ** top-level SQL statement */ |
| #define SHELL_PROGRESS_ONCE 0x04 /* Cancel the --limit after firing once */ |
| |
| /* |
| ** These are the allowed shellFlgs values |
| */ |
| #define SHFLG_Pagecache 0x00000001 /* The --pagecache option is used */ |
| #define SHFLG_Lookaside 0x00000002 /* Lookaside memory is used */ |
| #define SHFLG_Backslash 0x00000004 /* The --backslash option is used */ |
| #define SHFLG_PreserveRowid 0x00000008 /* .dump preserves rowid values */ |
| #define SHFLG_Newlines 0x00000010 /* .dump --newline flag */ |
| #define SHFLG_CountChanges 0x00000020 /* .changes setting */ |
| #define SHFLG_Echo 0x00000040 /* .echo or --echo setting */ |
| |
| /* |
| ** Macros for testing and setting shellFlgs |
| */ |
| #define ShellHasFlag(P,X) (((P)->shellFlgs & (X))!=0) |
| #define ShellSetFlag(P,X) ((P)->shellFlgs|=(X)) |
| #define ShellClearFlag(P,X) ((P)->shellFlgs&=(~(X))) |
| |
| /* |
| ** These are the allowed modes. |
| */ |
| #define MODE_Line 0 /* One column per line. Blank line between records */ |
| #define MODE_Column 1 /* One record per line in neat columns */ |
| #define MODE_List 2 /* One record per line with a separator */ |
| #define MODE_Semi 3 /* Same as MODE_List but append ";" to each line */ |
| #define MODE_Html 4 /* Generate an XHTML table */ |
| #define MODE_Insert 5 /* Generate SQL "insert" statements */ |
| #define MODE_Quote 6 /* Quote values as for SQL */ |
| #define MODE_Tcl 7 /* Generate ANSI-C or TCL quoted elements */ |
| #define MODE_Csv 8 /* Quote strings, numbers are plain */ |
| #define MODE_Explain 9 /* Like MODE_Column, but do not truncate data */ |
| #define MODE_Ascii 10 /* Use ASCII unit and record separators (0x1F/0x1E) */ |
| #define MODE_Pretty 11 /* Pretty-print schemas */ |
| #define MODE_EQP 12 /* Converts EXPLAIN QUERY PLAN output into a graph */ |
| |
| static const char *modeDescr[] = { |
| "line", |
| "column", |
| "list", |
| "semi", |
| "html", |
| "insert", |
| "quote", |
| "tcl", |
| "csv", |
| "explain", |
| "ascii", |
| "prettyprint", |
| "eqp" |
| }; |
| |
| /* |
| ** These are the column/row/line separators used by the various |
| ** import/export modes. |
| */ |
| #define SEP_Column "|" |
| #define SEP_Row "\n" |
| #define SEP_Tab "\t" |
| #define SEP_Space " " |
| #define SEP_Comma "," |
| #define SEP_CrLf "\r\n" |
| #define SEP_Unit "\x1F" |
| #define SEP_Record "\x1E" |
| |
| /* |
| ** A callback for the sqlite3_log() interface. |
| */ |
| static void shellLog(void *pArg, int iErrCode, const char *zMsg){ |
| ShellState *p = (ShellState*)pArg; |
| if( p->pLog==0 ) return; |
| utf8_printf(p->pLog, "(%d) %s\n", iErrCode, zMsg); |
| fflush(p->pLog); |
| } |
| |
| /* |
| ** SQL function: shell_putsnl(X) |
| ** |
| ** Write the text X to the screen (or whatever output is being directed) |
| ** adding a newline at the end, and then return X. |
| */ |
| static void shellPutsFunc( |
| sqlite3_context *pCtx, |
| int nVal, |
| sqlite3_value **apVal |
| ){ |
| ShellState *p = (ShellState*)sqlite3_user_data(pCtx); |
| (void)nVal; |
| utf8_printf(p->out, "%s\n", sqlite3_value_text(apVal[0])); |
| sqlite3_result_value(pCtx, apVal[0]); |
| } |
| |
| /* |
| ** SQL function: edit(VALUE) |
| ** edit(VALUE,EDITOR) |
| ** |
| ** These steps: |
| ** |
| ** (1) Write VALUE into a temporary file. |
| ** (2) Run program EDITOR on that temporary file. |
| ** (3) Read the temporary file back and return its content as the result. |
| ** (4) Delete the temporary file |
| ** |
| ** If the EDITOR argument is omitted, use the value in the VISUAL |
| ** environment variable. If still there is no EDITOR, through an error. |
| ** |
| ** Also throw an error if the EDITOR program returns a non-zero exit code. |
| */ |
| #ifndef SQLITE_NOHAVE_SYSTEM |
| static void editFunc( |
| sqlite3_context *context, |
| int argc, |
| sqlite3_value **argv |
| ){ |
| const char *zEditor; |
| char *zTempFile = 0; |
| sqlite3 *db; |
| char *zCmd = 0; |
| int bBin; |
| int rc; |
| int hasCRNL = 0; |
| FILE *f = 0; |
| sqlite3_int64 sz; |
| sqlite3_int64 x; |
| unsigned char *p = 0; |
| |
| if( argc==2 ){ |
| zEditor = (const char*)sqlite3_value_text(argv[1]); |
| }else{ |
| zEditor = getenv("VISUAL"); |
| } |
| if( zEditor==0 ){ |
| sqlite3_result_error(context, "no editor for edit()", -1); |
| return; |
| } |
| if( sqlite3_value_type(argv[0])==SQLITE_NULL ){ |
| sqlite3_result_error(context, "NULL input to edit()", -1); |
| return; |
| } |
| db = sqlite3_context_db_handle(context); |
| zTempFile = 0; |
| sqlite3_file_control(db, 0, SQLITE_FCNTL_TEMPFILENAME, &zTempFile); |
| if( zTempFile==0 ){ |
| sqlite3_uint64 r = 0; |
| sqlite3_randomness(sizeof(r), &r); |
| zTempFile = sqlite3_mprintf("temp%llx", r); |
| if( zTempFile==0 ){ |
| sqlite3_result_error_nomem(context); |
| return; |
| } |
| } |
| bBin = sqlite3_value_type(argv[0])==SQLITE_BLOB; |
| /* When writing the file to be edited, do \n to \r\n conversions on systems |
| ** that want \r\n line endings */ |
| f = fopen(zTempFile, bBin ? "wb" : "w"); |
| if( f==0 ){ |
| sqlite3_result_error(context, "edit() cannot open temp file", -1); |
| goto edit_func_end; |
| } |
| sz = sqlite3_value_bytes(argv[0]); |
| if( bBin ){ |
| x = fwrite(sqlite3_value_blob(argv[0]), 1, sz, f); |
| }else{ |
| const char *z = (const char*)sqlite3_value_text(argv[0]); |
| /* Remember whether or not the value originally contained \r\n */ |
| if( z && strstr(z,"\r\n")!=0 ) hasCRNL = 1; |
| x = fwrite(sqlite3_value_text(argv[0]), 1, sz, f); |
| } |
| fclose(f); |
| f = 0; |
| if( x!=sz ){ |
| sqlite3_result_error(context, "edit() could not write the whole file", -1); |
| goto edit_func_end; |
| } |
| zCmd = sqlite3_mprintf("%s \"%s\"", zEditor, zTempFile); |
| if( zCmd==0 ){ |
| sqlite3_result_error_nomem(context); |
| goto edit_func_end; |
| } |
| rc = system(zCmd); |
| sqlite3_free(zCmd); |
| if( rc ){ |
| sqlite3_result_error(context, "EDITOR returned non-zero", -1); |
| goto edit_func_end; |
| } |
| f = fopen(zTempFile, "rb"); |
| if( f==0 ){ |
| sqlite3_result_error(context, |
| "edit() cannot reopen temp file after edit", -1); |
| goto edit_func_end; |
| } |
| fseek(f, 0, SEEK_END); |
| sz = ftell(f); |
| rewind(f); |
| p = sqlite3_malloc64( sz+(bBin==0) ); |
| if( p==0 ){ |
| sqlite3_result_error_nomem(context); |
| goto edit_func_end; |
| } |
| x = fread(p, 1, sz, f); |
| fclose(f); |
| f = 0; |
| if( x!=sz ){ |
| sqlite3_result_error(context, "could not read back the whole file", -1); |
| goto edit_func_end; |
| } |
| if( bBin ){ |
| sqlite3_result_blob64(context, p, sz, sqlite3_free); |
| }else{ |
| sqlite3_int64 i, j; |
| if( hasCRNL ){ |
| /* If the original contains \r\n then do no conversions back to \n */ |
| j = sz; |
| }else{ |
| /* If the file did not originally contain \r\n then convert any new |
| ** \r\n back into \n */ |
| for(i=j=0; i<sz; i++){ |
| if( p[i]=='\r' && p[i+1]=='\n' ) i++; |
| p[j++] = p[i]; |
| } |
| sz = j; |
| p[sz] = 0; |
| } |
| sqlite3_result_text64(context, (const char*)p, sz, |
| sqlite3_free, SQLITE_UTF8); |
| } |
| p = 0; |
| |
| edit_func_end: |
| if( f ) fclose(f); |
| unlink(zTempFile); |
| sqlite3_free(zTempFile); |
| sqlite3_free(p); |
| } |
| #endif /* SQLITE_NOHAVE_SYSTEM */ |
| |
| /* |
| ** Save or restore the current output mode |
| */ |
| static void outputModePush(ShellState *p){ |
| p->modePrior = p->mode; |
| memcpy(p->colSepPrior, p->colSeparator, sizeof(p->colSeparator)); |
| memcpy(p->rowSepPrior, p->rowSeparator, sizeof(p->rowSeparator)); |
| } |
| static void outputModePop(ShellState *p){ |
| p->mode = p->modePrior; |
| memcpy(p->colSeparator, p->colSepPrior, sizeof(p->colSeparator)); |
| memcpy(p->rowSeparator, p->rowSepPrior, sizeof(p->rowSeparator)); |
| } |
| |
| /* |
| ** Output the given string as a hex-encoded blob (eg. X'1234' ) |
| */ |
| static void output_hex_blob(FILE *out, const void *pBlob, int nBlob){ |
| int i; |
| char *zBlob = (char *)pBlob; |
| raw_printf(out,"X'"); |
| for(i=0; i<nBlob; i++){ raw_printf(out,"%02x",zBlob[i]&0xff); } |
| raw_printf(out,"'"); |
| } |
| |
| /* |
| ** Find a string that is not found anywhere in z[]. Return a pointer |
| ** to that string. |
| ** |
| ** Try to use zA and zB first. If both of those are already found in z[] |
| ** then make up some string and store it in the buffer zBuf. |
| */ |
| static const char *unused_string( |
| const char *z, /* Result must not appear anywhere in z */ |
| const char *zA, const char *zB, /* Try these first */ |
| char *zBuf /* Space to store a generated string */ |
| ){ |
| unsigned i = 0; |
| if( strstr(z, zA)==0 ) return zA; |
| if( strstr(z, zB)==0 ) return zB; |
| do{ |
| sqlite3_snprintf(20,zBuf,"(%s%u)", zA, i++); |
| }while( strstr(z,zBuf)!=0 ); |
| return zBuf; |
| } |
| |
| /* |
| ** Output the given string as a quoted string using SQL quoting conventions. |
| ** |
| ** See also: output_quoted_escaped_string() |
| */ |
| static void output_quoted_string(FILE *out, const char *z){ |
| int i; |
| char c; |
| setBinaryMode(out, 1); |
| for(i=0; (c = z[i])!=0 && c!='\''; i++){} |
| if( c==0 ){ |
| utf8_printf(out,"'%s'",z); |
| }else{ |
| raw_printf(out, "'"); |
| while( *z ){ |
| for(i=0; (c = z[i])!=0 && c!='\''; i++){} |
| if( c=='\'' ) i++; |
| if( i ){ |
| utf8_printf(out, "%.*s", i, z); |
| z += i; |
| } |
| if( c=='\'' ){ |
| raw_printf(out, "'"); |
| continue; |
| } |
| if( c==0 ){ |
| break; |
| } |
| z++; |
| } |
| raw_printf(out, "'"); |
| } |
| setTextMode(out, 1); |
| } |
| |
| /* |
| ** Output the given string as a quoted string using SQL quoting conventions. |
| ** Additionallly , escape the "\n" and "\r" characters so that they do not |
| ** get corrupted by end-of-line translation facilities in some operating |
| ** systems. |
| ** |
| ** This is like output_quoted_string() but with the addition of the \r\n |
| ** escape mechanism. |
| */ |
| static void output_quoted_escaped_string(FILE *out, const char *z){ |
| int i; |
| char c; |
| setBinaryMode(out, 1); |
| for(i=0; (c = z[i])!=0 && c!='\'' && c!='\n' && c!='\r'; i++){} |
| if( c==0 ){ |
| utf8_printf(out,"'%s'",z); |
| }else{ |
| const char *zNL = 0; |
| const char *zCR = 0; |
| int nNL = 0; |
| int nCR = 0; |
| char zBuf1[20], zBuf2[20]; |
| for(i=0; z[i]; i++){ |
| if( z[i]=='\n' ) nNL++; |
| if( z[i]=='\r' ) nCR++; |
| } |
| if( nNL ){ |
| raw_printf(out, "replace("); |
| zNL = unused_string(z, "\\n", "\\012", zBuf1); |
| } |
| if( nCR ){ |
| raw_printf(out, "replace("); |
| zCR = unused_string(z, "\\r", "\\015", zBuf2); |
| } |
| raw_printf(out, "'"); |
| while( *z ){ |
| for(i=0; (c = z[i])!=0 && c!='\n' && c!='\r' && c!='\''; i++){} |
| if( c=='\'' ) i++; |
| if( i ){ |
| utf8_printf(out, "%.*s", i, z); |
| z += i; |
| } |
| if( c=='\'' ){ |
| raw_printf(out, "'"); |
| continue; |
| } |
| if( c==0 ){ |
| break; |
| } |
| z++; |
| if( c=='\n' ){ |
| raw_printf(out, "%s", zNL); |
| continue; |
| } |
| raw_printf(out, "%s", zCR); |
| } |
| raw_printf(out, "'"); |
| if( nCR ){ |
| raw_printf(out, ",'%s',char(13))", zCR); |
| } |
| if( nNL ){ |
| raw_printf(out, ",'%s',char(10))", zNL); |
| } |
| } |
| setTextMode(out, 1); |
| } |
| |
| /* |
| ** Output the given string as a quoted according to C or TCL quoting rules. |
| */ |
| static void output_c_string(FILE *out, const char *z){ |
| unsigned int c; |
| fputc('"', out); |
| while( (c = *(z++))!=0 ){ |
| if( c=='\\' ){ |
| fputc(c, out); |
| fputc(c, out); |
| }else if( c=='"' ){ |
| fputc('\\', out); |
| fputc('"', out); |
| }else if( c=='\t' ){ |
| fputc('\\', out); |
| fputc('t', out); |
| }else if( c=='\n' ){ |
| fputc('\\', out); |
| fputc('n', out); |
| }else if( c=='\r' ){ |
| fputc('\\', out); |
| fputc('r', out); |
| }else if( !isprint(c&0xff) ){ |
| raw_printf(out, "\\%03o", c&0xff); |
| }else{ |
| fputc(c, out); |
| } |
| } |
| fputc('"', out); |
| } |
| |
| /* |
| ** Output the given string with characters that are special to |
| ** HTML escaped. |
| */ |
| static void output_html_string(FILE *out, const char *z){ |
| int i; |
| if( z==0 ) z = ""; |
| while( *z ){ |
| for(i=0; z[i] |
| && z[i]!='<' |
| && z[i]!='&' |
| && z[i]!='>' |
| && z[i]!='\"' |
| && z[i]!='\''; |
| i++){} |
| if( i>0 ){ |
| utf8_printf(out,"%.*s",i,z); |
| } |
| if( z[i]=='<' ){ |
| raw_printf(out,"<"); |
| }else if( z[i]=='&' ){ |
| raw_printf(out,"&"); |
| }else if( z[i]=='>' ){ |
| raw_printf(out,">"); |
| }else if( z[i]=='\"' ){ |
| raw_printf(out,"""); |
| }else if( z[i]=='\'' ){ |
| raw_printf(out,"'"); |
| }else{ |
| break; |
| } |
| z += i + 1; |
| } |
| } |
| |
| /* |
| ** If a field contains any character identified by a 1 in the following |
| ** array, then the string must be quoted for CSV. |
| */ |
| static const char needCsvQuote[] = { |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| }; |
| |
| /* |
| ** Output a single term of CSV. Actually, p->colSeparator is used for |
| ** the separator, which may or may not be a comma. p->nullValue is |
| ** the null value. Strings are quoted if necessary. The separator |
| ** is only issued if bSep is true. |
| */ |
| static void output_csv(ShellState *p, const char *z, int bSep){ |
| FILE *out = p->out; |
| if( z==0 ){ |
| utf8_printf(out,"%s",p->nullValue); |
| }else{ |
| int i; |
| int nSep = strlen30(p->colSeparator); |
| for(i=0; z[i]; i++){ |
| if( needCsvQuote[((unsigned char*)z)[i]] |
| || (z[i]==p->colSeparator[0] && |
| (nSep==1 || memcmp(z, p->colSeparator, nSep)==0)) ){ |
| i = 0; |
| break; |
| } |
| } |
| if( i==0 ){ |
| char *zQuoted = sqlite3_mprintf("\"%w\"", z); |
| utf8_printf(out, "%s", zQuoted); |
| sqlite3_free(zQuoted); |
| }else{ |
| utf8_printf(out, "%s", z); |
| } |
| } |
| if( bSep ){ |
| utf8_printf(p->out, "%s", p->colSeparator); |
| } |
| } |
| |
| /* |
| ** This routine runs when the user presses Ctrl-C |
| */ |
| static void interrupt_handler(int NotUsed){ |
| UNUSED_PARAMETER(NotUsed); |
| seenInterrupt++; |
| if( seenInterrupt>2 ) exit(1); |
| if( globalDb ) sqlite3_interrupt(globalDb); |
| } |
| |
| #if (defined(_WIN32) || defined(WIN32)) && !defined(_WIN32_WCE) |
| /* |
| ** This routine runs for console events (e.g. Ctrl-C) on Win32 |
| */ |
| static BOOL WINAPI ConsoleCtrlHandler( |
| DWORD dwCtrlType /* One of the CTRL_*_EVENT constants */ |
| ){ |
| if( dwCtrlType==CTRL_C_EVENT ){ |
| interrupt_handler(0); |
| return TRUE; |
| } |
| return FALSE; |
| } |
| #endif |
| |
| #ifndef SQLITE_OMIT_AUTHORIZATION |
| /* |
| ** When the ".auth ON" is set, the following authorizer callback is |
| ** invoked. It always returns SQLITE_OK. |
| */ |
| static int shellAuth( |
| void *pClientData, |
| int op, |
| const char *zA1, |
| const char *zA2, |
| const char *zA3, |
| const char *zA4 |
| ){ |
| ShellState *p = (ShellState*)pClientData; |
| static const char *azAction[] = { 0, |
| "CREATE_INDEX", "CREATE_TABLE", "CREATE_TEMP_INDEX", |
| "CREATE_TEMP_TABLE", "CREATE_TEMP_TRIGGER", "CREATE_TEMP_VIEW", |
| "CREATE_TRIGGER", "CREATE_VIEW", "DELETE", |
| "DROP_INDEX", "DROP_TABLE", "DROP_TEMP_INDEX", |
| "DROP_TEMP_TABLE", "DROP_TEMP_TRIGGER", "DROP_TEMP_VIEW", |
| "DROP_TRIGGER", "DROP_VIEW", "INSERT", |
| "PRAGMA", "READ", "SELECT", |
| "TRANSACTION", "UPDATE", "ATTACH", |
| "DETACH", "ALTER_TABLE", "REINDEX", |
| "ANALYZE", "CREATE_VTABLE", "DROP_VTABLE", |
| "FUNCTION", "SAVEPOINT", "RECURSIVE" |
| }; |
| int i; |
| const char *az[4]; |
| az[0] = zA1; |
| az[1] = zA2; |
| az[2] = zA3; |
| az[3] = zA4; |
| utf8_printf(p->out, "authorizer: %s", azAction[op]); |
| for(i=0; i<4; i++){ |
| raw_printf(p->out, " "); |
| if( az[i] ){ |
| output_c_string(p->out, az[i]); |
| }else{ |
| raw_printf(p->out, "NULL"); |
| } |
| } |
| raw_printf(p->out, "\n"); |
| return SQLITE_OK; |
| } |
| #endif |
| |
| /* |
| ** Print a schema statement. Part of MODE_Semi and MODE_Pretty output. |
| ** |
| ** This routine converts some CREATE TABLE statements for shadow tables |
| ** in FTS3/4/5 into CREATE TABLE IF NOT EXISTS statements. |
| */ |
| static void printSchemaLine(FILE *out, const char *z, const char *zTail){ |
| if( sqlite3_strglob("CREATE TABLE ['\"]*", z)==0 ){ |
| utf8_printf(out, "CREATE TABLE IF NOT EXISTS %s%s", z+13, zTail); |
| }else{ |
| utf8_printf(out, "%s%s", z, zTail); |
| } |
| } |
| static void printSchemaLineN(FILE *out, char *z, int n, const char *zTail){ |
| char c = z[n]; |
| z[n] = 0; |
| printSchemaLine(out, z, zTail); |
| z[n] = c; |
| } |
| |
| /* |
| ** Return true if string z[] has nothing but whitespace and comments to the |
| ** end of the first line. |
| */ |
| static int wsToEol(const char *z){ |
| int i; |
| for(i=0; z[i]; i++){ |
| if( z[i]=='\n' ) return 1; |
| if( IsSpace(z[i]) ) continue; |
| if( z[i]=='-' && z[i+1]=='-' ) return 1; |
| return 0; |
| } |
| return 1; |
| } |
| |
| /* |
| ** Add a new entry to the EXPLAIN QUERY PLAN data |
| */ |
| static void eqp_append(ShellState *p, int iEqpId, int p2, const char *zText){ |
| EQPGraphRow *pNew; |
| int nText = strlen30(zText); |
| if( p->autoEQPtest ){ |
| utf8_printf(p->out, "%d,%d,%s\n", iEqpId, p2, zText); |
| } |
| pNew = sqlite3_malloc64( sizeof(*pNew) + nText ); |
| if( pNew==0 ) shell_out_of_memory(); |
| pNew->iEqpId = iEqpId; |
| pNew->iParentId = p2; |
| memcpy(pNew->zText, zText, nText+1); |
| pNew->pNext = 0; |
| if( p->sGraph.pLast ){ |
| p->sGraph.pLast->pNext = pNew; |
| }else{ |
| p->sGraph.pRow = pNew; |
| } |
| p->sGraph.pLast = pNew; |
| } |
| |
| /* |
| ** Free and reset the EXPLAIN QUERY PLAN data that has been collected |
| ** in p->sGraph. |
| */ |
| static void eqp_reset(ShellState *p){ |
| EQPGraphRow *pRow, *pNext; |
| for(pRow = p->sGraph.pRow; pRow; pRow = pNext){ |
| pNext = pRow->pNext; |
| sqlite3_free(pRow); |
| } |
| memset(&p->sGraph, 0, sizeof(p->sGraph)); |
| } |
| |
| /* Return the next EXPLAIN QUERY PLAN line with iEqpId that occurs after |
| ** pOld, or return the first such line if pOld is NULL |
| */ |
| static EQPGraphRow *eqp_next_row(ShellState *p, int iEqpId, EQPGraphRow *pOld){ |
| EQPGraphRow *pRow = pOld ? pOld->pNext : p->sGraph.pRow; |
| while( pRow && pRow->iParentId!=iEqpId ) pRow = pRow->pNext; |
| return pRow; |
| } |
| |
| /* Render a single level of the graph that has iEqpId as its parent. Called |
| ** recursively to render sublevels. |
| */ |
| static void eqp_render_level(ShellState *p, int iEqpId){ |
| EQPGraphRow *pRow, *pNext; |
| int n = strlen30(p->sGraph.zPrefix); |
| char *z; |
| for(pRow = eqp_next_row(p, iEqpId, 0); pRow; pRow = pNext){ |
| pNext = eqp_next_row(p, iEqpId, pRow); |
| z = pRow->zText; |
| utf8_printf(p->out, "%s%s%s\n", p->sGraph.zPrefix, pNext ? "|--" : "`--", z); |
| if( n<(int)sizeof(p->sGraph.zPrefix)-7 ){ |
| memcpy(&p->sGraph.zPrefix[n], pNext ? "| " : " ", 4); |
| eqp_render_level(p, pRow->iEqpId); |
| p->sGraph.zPrefix[n] = 0; |
| } |
| } |
| } |
| |
| /* |
| ** Display and reset the EXPLAIN QUERY PLAN data |
| */ |
| static void eqp_render(ShellState *p){ |
| EQPGraphRow *pRow = p->sGraph.pRow; |
| if( pRow ){ |
| if( pRow->zText[0]=='-' ){ |
| if( pRow->pNext==0 ){ |
| eqp_reset(p); |
| return; |
| } |
| utf8_printf(p->out, "%s\n", pRow->zText+3); |
| p->sGraph.pRow = pRow->pNext; |
| sqlite3_free(pRow); |
| }else{ |
| utf8_printf(p->out, "QUERY PLAN\n"); |
| } |
| p->sGraph.zPrefix[0] = 0; |
| eqp_render_level(p, 0); |
| eqp_reset(p); |
| } |
| } |
| |
| #ifndef SQLITE_OMIT_PROGRESS_CALLBACK |
| /* |
| ** Progress handler callback. |
| */ |
| static int progress_handler(void *pClientData) { |
| ShellState *p = (ShellState*)pClientData; |
| p->nProgress++; |
| if( p->nProgress>=p->mxProgress && p->mxProgress>0 ){ |
| raw_printf(p->out, "Progress limit reached (%u)\n", p->nProgress); |
| if( p->flgProgress & SHELL_PROGRESS_RESET ) p->nProgress = 0; |
| if( p->flgProgress & SHELL_PROGRESS_ONCE ) p->mxProgress = 0; |
| return 1; |
| } |
| if( (p->flgProgress & SHELL_PROGRESS_QUIET)==0 ){ |
| raw_printf(p->out, "Progress %u\n", p->nProgress); |
| } |
| return 0; |
| } |
| #endif /* SQLITE_OMIT_PROGRESS_CALLBACK */ |
| |
| /* |
| ** This is the callback routine that the shell |
| ** invokes for each row of a query result. |
| */ |
| static int shell_callback( |
| void *pArg, |
| int nArg, /* Number of result columns */ |
| char **azArg, /* Text of each result column */ |
| char **azCol, /* Column names */ |
| int *aiType /* Column types */ |
| ){ |
| int i; |
| ShellState *p = (ShellState*)pArg; |
| |
| if( azArg==0 ) return 0; |
| switch( p->cMode ){ |
| case MODE_Line: { |
| int w = 5; |
| if( azArg==0 ) break; |
| for(i=0; i<nArg; i++){ |
| int len = strlen30(azCol[i] ? azCol[i] : ""); |
| if( len>w ) w = len; |
| } |
| if( p->cnt++>0 ) utf8_printf(p->out, "%s", p->rowSeparator); |
| for(i=0; i<nArg; i++){ |
| utf8_printf(p->out,"%*s = %s%s", w, azCol[i], |
| azArg[i] ? azArg[i] : p->nullValue, p->rowSeparator); |
| } |
| break; |
| } |
| case MODE_Explain: |
| case MODE_Column: { |
| static const int aExplainWidths[] = {4, 13, 4, 4, 4, 13, 2, 13}; |
| const int *colWidth; |
| int showHdr; |
| char *rowSep; |
| if( p->cMode==MODE_Column ){ |
| colWidth = p->colWidth; |
| showHdr = p->showHeader; |
| rowSep = p->rowSeparator; |
| }else{ |
| colWidth = aExplainWidths; |
| showHdr = 1; |
| rowSep = SEP_Row; |
| } |
| if( p->cnt++==0 ){ |
| for(i=0; i<nArg; i++){ |
| int w, n; |
| if( i<ArraySize(p->colWidth) ){ |
| w = colWidth[i]; |
| }else{ |
| w = 0; |
| } |
| if( w==0 ){ |
| w = strlenChar(azCol[i] ? azCol[i] : ""); |
| if( w<10 ) w = 10; |
| n = strlenChar(azArg && azArg[i] ? azArg[i] : p->nullValue); |
| if( w<n ) w = n; |
| } |
| if( i<ArraySize(p->actualWidth) ){ |
| p->actualWidth[i] = w; |
| } |
| if( showHdr ){ |
| utf8_width_print(p->out, w, azCol[i]); |
| utf8_printf(p->out, "%s", i==nArg-1 ? rowSep : " "); |
| } |
| } |
| if( showHdr ){ |
| for(i=0; i<nArg; i++){ |
| int w; |
| if( i<ArraySize(p->actualWidth) ){ |
| w = p->actualWidth[i]; |
| if( w<0 ) w = -w; |
| }else{ |
| w = 10; |
| } |
| utf8_printf(p->out,"%-*.*s%s",w,w, |
| "----------------------------------------------------------" |
| "----------------------------------------------------------", |
| i==nArg-1 ? rowSep : " "); |
| } |
| } |
| } |
| if( azArg==0 ) break; |
| for(i=0; i<nArg; i++){ |
| int w; |
| if( i<ArraySize(p->actualWidth) ){ |
| w = p->actualWidth[i]; |
| }else{ |
| w = 10; |
| } |
| if( p->cMode==MODE_Explain && azArg[i] && strlenChar(azArg[i])>w ){ |
| w = strlenChar(azArg[i]); |
| } |
| if( i==1 && p->aiIndent && p->pStmt ){ |
| if( p->iIndent<p->nIndent ){ |
| utf8_printf(p->out, "%*.s", p->aiIndent[p->iIndent], ""); |
| } |
| p->iIndent++; |
| } |
| utf8_width_print(p->out, w, azArg[i] ? azArg[i] : p->nullValue); |
| utf8_printf(p->out, "%s", i==nArg-1 ? rowSep : " "); |
| } |
| break; |
| } |
| case MODE_Semi: { /* .schema and .fullschema output */ |
| printSchemaLine(p->out, azArg[0], ";\n"); |
| break; |
| } |
| case MODE_Pretty: { /* .schema and .fullschema with --indent */ |
| char *z; |
| int j; |
| int nParen = 0; |
| char cEnd = 0; |
| char c; |
| int nLine = 0; |
| assert( nArg==1 ); |
| if( azArg[0]==0 ) break; |
| if( sqlite3_strlike("CREATE VIEW%", azArg[0], 0)==0 |
| || sqlite3_strlike("CREATE TRIG%", azArg[0], 0)==0 |
| ){ |
| utf8_printf(p->out, "%s;\n", azArg[0]); |
| break; |
| } |
| z = sqlite3_mprintf("%s", azArg[0]); |
| j = 0; |
| for(i=0; IsSpace(z[i]); i++){} |
| for(; (c = z[i])!=0; i++){ |
| if( IsSpace(c) ){ |
| if( z[j-1]=='\r' ) z[j-1] = '\n'; |
| if( IsSpace(z[j-1]) || z[j-1]=='(' ) continue; |
| }else if( (c=='(' || c==')') && j>0 && IsSpace(z[j-1]) ){ |
| j--; |
| } |
| z[j++] = c; |
| } |
| while( j>0 && IsSpace(z[j-1]) ){ j--; } |
| z[j] = 0; |
| if( strlen30(z)>=79 ){ |
| for(i=j=0; (c = z[i])!=0; i++){ /* Copy changes from z[i] back to z[j] */ |
| if( c==cEnd ){ |
| cEnd = 0; |
| }else if( c=='"' || c=='\'' || c=='`' ){ |
| cEnd = c; |
| }else if( c=='[' ){ |
| cEnd = ']'; |
| }else if( c=='-' && z[i+1]=='-' ){ |
| cEnd = '\n'; |
| }else if( c=='(' ){ |
| nParen++; |
| }else if( c==')' ){ |
| nParen--; |
| if( nLine>0 && nParen==0 && j>0 ){ |
| printSchemaLineN(p->out, z, j, "\n"); |
| j = 0; |
| } |
| } |
| z[j++] = c; |
| if( nParen==1 && cEnd==0 |
| && (c=='(' || c=='\n' || (c==',' && !wsToEol(z+i+1))) |
| ){ |
| if( c=='\n' ) j--; |
| printSchemaLineN(p->out, z, j, "\n "); |
| j = 0; |
| nLine++; |
| while( IsSpace(z[i+1]) ){ i++; } |
| } |
| } |
| z[j] = 0; |
| } |
| printSchemaLine(p->out, z, ";\n"); |
| sqlite3_free(z); |
| break; |
| } |
| case MODE_List: { |
| if( p->cnt++==0 && p->showHeader ){ |
| for(i=0; i<nArg; i++){ |
| utf8_printf(p->out,"%s%s",azCol[i], |
| i==nArg-1 ? p->rowSeparator : p->colSeparator); |
| } |
| } |
| if( azArg==0 ) break; |
| for(i=0; i<nArg; i++){ |
| char *z = azArg[i]; |
| if( z==0 ) z = p->nullValue; |
| utf8_printf(p->out, "%s", z); |
| if( i<nArg-1 ){ |
| utf8_printf(p->out, "%s", p->colSeparator); |
| }else{ |
| utf8_printf(p->out, "%s", p->rowSeparator); |
| } |
| } |
| break; |
| } |
| case MODE_Html: { |
| if( p->cnt++==0 && p->showHeader ){ |
| raw_printf(p->out,"<TR>"); |
| for(i=0; i<nArg; i++){ |
| raw_printf(p->out,"<TH>"); |
| output_html_string(p->out, azCol[i]); |
| raw_printf(p->out,"</TH>\n"); |
| } |
| raw_printf(p->out,"</TR>\n"); |
| } |
| if( azArg==0 ) break; |
| raw_printf(p->out,"<TR>"); |
| for(i=0; i<nArg; i++){ |
| raw_printf(p->out,"<TD>"); |
| output_html_string(p->out, azArg[i] ? azArg[i] : p->nullValue); |
| raw_printf(p->out,"</TD>\n"); |
| } |
| raw_printf(p->out,"</TR>\n"); |
| break; |
| } |
| case MODE_Tcl: { |
| if( p->cnt++==0 && p->showHeader ){ |
| for(i=0; i<nArg; i++){ |
| output_c_string(p->out,azCol[i] ? azCol[i] : ""); |
| if(i<nArg-1) utf8_printf(p->out, "%s", p->colSeparator); |
| } |
| utf8_printf(p->out, "%s", p->rowSeparator); |
| } |
| if( azArg==0 ) break; |
| for(i=0; i<nArg; i++){ |
| output_c_string(p->out, azArg[i] ? azArg[i] : p->nullValue); |
| if(i<nArg-1) utf8_printf(p->out, "%s", p->colSeparator); |
| } |
| utf8_printf(p->out, "%s", p->rowSeparator); |
| break; |
| } |
| case MODE_Csv: { |
| setBinaryMode(p->out, 1); |
| if( p->cnt++==0 && p->showHeader ){ |
| for(i=0; i<nArg; i++){ |
| output_csv(p, azCol[i] ? azCol[i] : "", i<nArg-1); |
| } |
| utf8_printf(p->out, "%s", p->rowSeparator); |
| } |
| if( nArg>0 ){ |
| for(i=0; i<nArg; i++){ |
| output_csv(p, azArg[i], i<nArg-1); |
| } |
| utf8_printf(p->out, "%s", p->rowSeparator); |
| } |
| setTextMode(p->out, 1); |
| break; |
| } |
| case MODE_Insert: { |
| if( azArg==0 ) break; |
| utf8_printf(p->out,"INSERT INTO %s",p->zDestTable); |
| if( p->showHeader ){ |
| raw_printf(p->out,"("); |
| for(i=0; i<nArg; i++){ |
| if( i>0 ) raw_printf(p->out, ","); |
| if( quoteChar(azCol[i]) ){ |
| char *z = sqlite3_mprintf("\"%w\"", azCol[i]); |
| utf8_printf(p->out, "%s", z); |
| sqlite3_free(z); |
| }else{ |
| raw_printf(p->out, "%s", azCol[i]); |
| } |
| } |
| raw_printf(p->out,")"); |
| } |
| p->cnt++; |
| for(i=0; i<nArg; i++){ |
| raw_printf(p->out, i>0 ? "," : " VALUES("); |
| if( (azArg[i]==0) || (aiType && aiType[i]==SQLITE_NULL) ){ |
| utf8_printf(p->out,"NULL"); |
| }else if( aiType && aiType[i]==SQLITE_TEXT ){ |
| if( ShellHasFlag(p, SHFLG_Newlines) ){ |
| output_quoted_string(p->out, azArg[i]); |
| }else{ |
| output_quoted_escaped_string(p->out, azArg[i]); |
| } |
| }else if( aiType && aiType[i]==SQLITE_INTEGER ){ |
| utf8_printf(p->out,"%s", azArg[i]); |
| }else if( aiType && aiType[i]==SQLITE_FLOAT ){ |
| char z[50]; |
| double r = sqlite3_column_double(p->pStmt, i); |
| sqlite3_uint64 ur; |
| memcpy(&ur,&r,sizeof(r)); |
| if( ur==0x7ff0000000000000LL ){ |
| raw_printf(p->out, "1e999"); |
| }else if( ur==0xfff0000000000000LL ){ |
| raw_printf(p->out, "-1e999"); |
| }else{ |
| sqlite3_snprintf(50,z,"%!.20g", r); |
| raw_printf(p->out, "%s", z); |
| } |
| }else if( aiType && aiType[i]==SQLITE_BLOB && p->pStmt ){ |
| const void *pBlob = sqlite3_column_blob(p->pStmt, i); |
| int nBlob = sqlite3_column_bytes(p->pStmt, i); |
| output_hex_blob(p->out, pBlob, nBlob); |
| }else if( isNumber(azArg[i], 0) ){ |
| utf8_printf(p->out,"%s", azArg[i]); |
| }else if( ShellHasFlag(p, SHFLG_Newlines) ){ |
| output_quoted_string(p->out, azArg[i]); |
| }else{ |
| output_quoted_escaped_string(p->out, azArg[i]); |
| } |
| } |
| raw_printf(p->out,");\n"); |
| break; |
| } |
| case MODE_Quote: { |
| if( azArg==0 ) break; |
| if( p->cnt==0 && p->showHeader ){ |
| for(i=0; i<nArg; i++){ |
| if( i>0 ) raw_printf(p->out, ","); |
| output_quoted_string(p->out, azCol[i]); |
| } |
| raw_printf(p->out,"\n"); |
| } |
| p->cnt++; |
| for(i=0; i<nArg; i++){ |
| if( i>0 ) raw_printf(p->out, ","); |
| if( (azArg[i]==0) || (aiType && aiType[i]==SQLITE_NULL) ){ |
| utf8_printf(p->out,"NULL"); |
| }else if( aiType && aiType[i]==SQLITE_TEXT ){ |
| output_quoted_string(p->out, azArg[i]); |
| }else if( aiType && aiType[i]==SQLITE_INTEGER ){ |
| utf8_printf(p->out,"%s", azArg[i]); |
| }else if( aiType && aiType[i]==SQLITE_FLOAT ){ |
| char z[50]; |
| double r = sqlite3_column_double(p->pStmt, i); |
| sqlite3_snprintf(50,z,"%!.20g", r); |
| raw_printf(p->out, "%s", z); |
| }else if( aiType && aiType[i]==SQLITE_BLOB && p->pStmt ){ |
| const void *pBlob = sqlite3_column_blob(p->pStmt, i); |
| int nBlob = sqlite3_column_bytes(p->pStmt, i); |
| output_hex_blob(p->out, pBlob, nBlob); |
| }else if( isNumber(azArg[i], 0) ){ |
| utf8_printf(p->out,"%s", azArg[i]); |
| }else{ |
| output_quoted_string(p->out, azArg[i]); |
| } |
| } |
| raw_printf(p->out,"\n"); |
| break; |
| } |
| case MODE_Ascii: { |
| if( p->cnt++==0 && p->showHeader ){ |
| for(i=0; i<nArg; i++){ |
| if( i>0 ) utf8_printf(p->out, "%s", p->colSeparator); |
| utf8_printf(p->out,"%s",azCol[i] ? azCol[i] : ""); |
| } |
| utf8_printf(p->out, "%s", p->rowSeparator); |
| } |
| if( azArg==0 ) break; |
| for(i=0; i<nArg; i++){ |
| if( i>0 ) utf8_printf(p->out, "%s", p->colSeparator); |
| utf8_printf(p->out,"%s",azArg[i] ? azArg[i] : p->nullValue); |
| } |
| utf8_printf(p->out, "%s", p->rowSeparator); |
| break; |
| } |
| case MODE_EQP: { |
| eqp_append(p, atoi(azArg[0]), atoi(azArg[1]), azArg[3]); |
| break; |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| ** This is the callback routine that the SQLite library |
| ** invokes for each row of a query result. |
| */ |
| static int callback(void *pArg, int nArg, char **azArg, char **azCol){ |
| /* since we don't have type info, call the shell_callback with a NULL value */ |
| return shell_callback(pArg, nArg, azArg, azCol, NULL); |
| } |
| |
| /* |
| ** This is the callback routine from sqlite3_exec() that appends all |
| ** output onto the end of a ShellText object. |
| */ |
| static int captureOutputCallback(void *pArg, int nArg, char **azArg, char **az){ |
| ShellText *p = (ShellText*)pArg; |
| int i; |
| UNUSED_PARAMETER(az); |
| if( azArg==0 ) return 0; |
| if( p->n ) appendText(p, "|", 0); |
| for(i=0; i<nArg; i++){ |
| if( i ) appendText(p, ",", 0); |
| if( azArg[i] ) appendText(p, azArg[i], 0); |
| } |
| return 0; |
| } |
| |
| /* |
| ** Generate an appropriate SELFTEST table in the main database. |
| */ |
| static void createSelftestTable(ShellState *p){ |
| char *zErrMsg = 0; |
| sqlite3_exec(p->db, |
| "SAVEPOINT selftest_init;\n" |
| "CREATE TABLE IF NOT EXISTS selftest(\n" |
| " tno INTEGER PRIMARY KEY,\n" /* Test number */ |
| " op TEXT,\n" /* Operator: memo run */ |
| " cmd TEXT,\n" /* Command text */ |
| " ans TEXT\n" /* Desired answer */ |
| ");" |
| "CREATE TEMP TABLE [_shell$self](op,cmd,ans);\n" |
| "INSERT INTO [_shell$self](rowid,op,cmd)\n" |
| " VALUES(coalesce((SELECT (max(tno)+100)/10 FROM selftest),10),\n" |
| " 'memo','Tests generated by --init');\n" |
| "INSERT INTO [_shell$self]\n" |
| " SELECT 'run',\n" |
| " 'SELECT hex(sha3_query(''SELECT type,name,tbl_name,sql " |
| "FROM sqlite_master ORDER BY 2'',224))',\n" |
| " hex(sha3_query('SELECT type,name,tbl_name,sql " |
| "FROM sqlite_master ORDER BY 2',224));\n" |
| "INSERT INTO [_shell$self]\n" |
| " SELECT 'run'," |
| " 'SELECT hex(sha3_query(''SELECT * FROM \"' ||" |
| " printf('%w',name) || '\" NOT INDEXED'',224))',\n" |
| " hex(sha3_query(printf('SELECT * FROM \"%w\" NOT INDEXED',name),224))\n" |
| " FROM (\n" |
| " SELECT name FROM sqlite_master\n" |
| " WHERE type='table'\n" |
| " AND name<>'selftest'\n" |
| " AND coalesce(rootpage,0)>0\n" |
| " )\n" |
| " ORDER BY name;\n" |
| "INSERT INTO [_shell$self]\n" |
| " VALUES('run','PRAGMA integrity_check','ok');\n" |
| "INSERT INTO selftest(tno,op,cmd,ans)" |
| " SELECT rowid*10,op,cmd,ans FROM [_shell$self];\n" |
| "DROP TABLE [_shell$self];" |
| ,0,0,&zErrMsg); |
| if( zErrMsg ){ |
| utf8_printf(stderr, "SELFTEST initialization failure: %s\n", zErrMsg); |
| sqlite3_free(zErrMsg); |
| } |
| sqlite3_exec(p->db, "RELEASE selftest_init",0,0,0); |
| } |
| |
| |
| /* |
| ** Set the destination table field of the ShellState structure to |
| ** the name of the table given. Escape any quote characters in the |
| ** table name. |
| */ |
| static void set_table_name(ShellState *p, const char *zName){ |
| int i, n; |
| char cQuote; |
| char *z; |
| |
| if( p->zDestTable ){ |
| free(p->zDestTable); |
| p->zDestTable = 0; |
| } |
| if( zName==0 ) return; |
| cQuote = quoteChar(zName); |
| n = strlen30(zName); |
| if( cQuote ) n += n+2; |
| z = p->zDestTable = malloc( n+1 ); |
| if( z==0 ) shell_out_of_memory(); |
| n = 0; |
| if( cQuote ) z[n++] = cQuote; |
| for(i=0; zName[i]; i++){ |
| z[n++] = zName[i]; |
| if( zName[i]==cQuote ) z[n++] = cQuote; |
| } |
| if( cQuote ) z[n++] = cQuote; |
| z[n] = 0; |
| } |
| |
| |
| /* |
| ** Execute a query statement that will generate SQL output. Print |
| ** the result columns, comma-separated, on a line and then add a |
| ** semicolon terminator to the end of that line. |
| ** |
| ** If the number of columns is 1 and that column contains text "--" |
| ** then write the semicolon on a separate line. That way, if a |
| ** "--" comment occurs at the end of the statement, the comment |
| ** won't consume the semicolon terminator. |
| */ |
| static int run_table_dump_query( |
| ShellState *p, /* Query context */ |
| const char *zSelect, /* SELECT statement to extract content */ |
| const char *zFirstRow /* Print before first row, if not NULL */ |
| ){ |
| sqlite3_stmt *pSelect; |
| int rc; |
| int nResult; |
| int i; |
| const char *z; |
| rc = sqlite3_prepare_v2(p->db, zSelect, -1, &pSelect, 0); |
| if( rc!=SQLITE_OK || !pSelect ){ |
| utf8_printf(p->out, "/**** ERROR: (%d) %s *****/\n", rc, |
| sqlite3_errmsg(p->db)); |
| if( (rc&0xff)!=SQLITE_CORRUPT ) p->nErr++; |
| return rc; |
| } |
| rc = sqlite3_step(pSelect); |
| nResult = sqlite3_column_count(pSelect); |
| while( rc==SQLITE_ROW ){ |
| if( zFirstRow ){ |
| utf8_printf(p->out, "%s", zFirstRow); |
| zFirstRow = 0; |
| } |
| z = (const char*)sqlite3_column_text(pSelect, 0); |
| utf8_printf(p->out, "%s", z); |
| for(i=1; i<nResult; i++){ |
| utf8_printf(p->out, ",%s", sqlite3_column_text(pSelect, i)); |
| } |
| if( z==0 ) z = ""; |
| while( z[0] && (z[0]!='-' || z[1]!='-') ) z++; |
| if( z[0] ){ |
| raw_printf(p->out, "\n;\n"); |
| }else{ |
| raw_printf(p->out, ";\n"); |
| } |
| rc = sqlite3_step(pSelect); |
| } |
| rc = sqlite3_finalize(pSelect); |
| if( rc!=SQLITE_OK ){ |
| utf8_printf(p->out, "/**** ERROR: (%d) %s *****/\n", rc, |
| sqlite3_errmsg(p->db)); |
| if( (rc&0xff)!=SQLITE_CORRUPT ) p->nErr++; |
| } |
| return rc; |
| } |
| |
| /* |
| ** Allocate space and save off current error string. |
| */ |
| static char *save_err_msg( |
| sqlite3 *db /* Database to query */ |
| ){ |
| int nErrMsg = 1+strlen30(sqlite3_errmsg(db)); |
| char *zErrMsg = sqlite3_malloc64(nErrMsg); |
| if( zErrMsg ){ |
| memcpy(zErrMsg, sqlite3_errmsg(db), nErrMsg); |
| } |
| return zErrMsg; |
| } |
| |
| #ifdef __linux__ |
| /* |
| ** Attempt to display I/O stats on Linux using /proc/PID/io |
| */ |
| static void displayLinuxIoStats(FILE *out){ |
| FILE *in; |
| char z[200]; |
| sqlite3_snprintf(sizeof(z), z, "/proc/%d/io", getpid()); |
| in = fopen(z, "rb"); |
| if( in==0 ) return; |
| while( fgets(z, sizeof(z), in)!=0 ){ |
| static const struct { |
| const char *zPattern; |
| const char *zDesc; |
| } aTrans[] = { |
| { "rchar: ", "Bytes received by read():" }, |
| { "wchar: ", "Bytes sent to write():" }, |
| { "syscr: ", "Read() system calls:" }, |
| { "syscw: ", "Write() system calls:" }, |
| { "read_bytes: ", "Bytes read from storage:" }, |
| { "write_bytes: ", "Bytes written to storage:" }, |
| { "cancelled_write_bytes: ", "Cancelled write bytes:" }, |
| }; |
| int i; |
| for(i=0; i<ArraySize(aTrans); i++){ |
| int n = strlen30(aTrans[i].zPattern); |
| if( strncmp(aTrans[i].zPattern, z, n)==0 ){ |
| utf8_printf(out, "%-36s %s", aTrans[i].zDesc, &z[n]); |
| break; |
| } |
| } |
| } |
| fclose(in); |
| } |
| #endif |
| |
| /* |
| ** Display a single line of status using 64-bit values. |
| */ |
| static void displayStatLine( |
| ShellState *p, /* The shell context */ |
| char *zLabel, /* Label for this one line */ |
| char *zFormat, /* Format for the result */ |
| int iStatusCtrl, /* Which status to display */ |
| int bReset /* True to reset the stats */ |
| ){ |
| sqlite3_int64 iCur = -1; |
| sqlite3_int64 iHiwtr = -1; |
| int i, nPercent; |
| char zLine[200]; |
| sqlite3_status64(iStatusCtrl, &iCur, &iHiwtr, bReset); |
| for(i=0, nPercent=0; zFormat[i]; i++){ |
| if( zFormat[i]=='%' ) nPercent++; |
| } |
| if( nPercent>1 ){ |
| sqlite3_snprintf(sizeof(zLine), zLine, zFormat, iCur, iHiwtr); |
| }else{ |
| sqlite3_snprintf(sizeof(zLine), zLine, zFormat, iHiwtr); |
| } |
| raw_printf(p->out, "%-36s %s\n", zLabel, zLine); |
| } |
| |
| /* |
| ** Display memory stats. |
| */ |
| static int display_stats( |
| sqlite3 *db, /* Database to query */ |
| ShellState *pArg, /* Pointer to ShellState */ |
| int bReset /* True to reset the stats */ |
| ){ |
| int iCur; |
| int iHiwtr; |
| FILE *out; |
| if( pArg==0 || pArg->out==0 ) return 0; |
| out = pArg->out; |
| |
| if( pArg->pStmt && (pArg->statsOn & 2) ){ |
| int nCol, i, x; |
| sqlite3_stmt *pStmt = pArg->pStmt; |
| char z[100]; |
| nCol = sqlite3_column_count(pStmt); |
| raw_printf(out, "%-36s %d\n", "Number of output columns:", nCol); |
| for(i=0; i<nCol; i++){ |
| sqlite3_snprintf(sizeof(z),z,"Column %d %nname:", i, &x); |
| utf8_printf(out, "%-36s %s\n", z, sqlite3_column_name(pStmt,i)); |
| #ifndef SQLITE_OMIT_DECLTYPE |
| sqlite3_snprintf(30, z+x, "declared type:"); |
| utf8_printf(out, "%-36s %s\n", z, sqlite3_column_decltype(pStmt, i)); |
| #endif |
| #ifdef SQLITE_ENABLE_COLUMN_METADATA |
| sqlite3_snprintf(30, z+x, "database name:"); |
| utf8_printf(out, "%-36s %s\n", z, sqlite3_column_database_name(pStmt,i)); |
| sqlite3_snprintf(30, z+x, "table name:"); |
| utf8_printf(out, "%-36s %s\n", z, sqlite3_column_table_name(pStmt,i)); |
| sqlite3_snprintf(30, z+x, "origin name:"); |
| utf8_printf(out, "%-36s %s\n", z, sqlite3_column_origin_name(pStmt,i)); |
| #endif |
| } |
| } |
| |
| displayStatLine(pArg, "Memory Used:", |
| "%lld (max %lld) bytes", SQLITE_STATUS_MEMORY_USED, bReset); |
| displayStatLine(pArg, "Number of Outstanding Allocations:", |
| "%lld (max %lld)", SQLITE_STATUS_MALLOC_COUNT, bReset); |
| if( pArg->shellFlgs & SHFLG_Pagecache ){ |
| displayStatLine(pArg, "Number of Pcache Pages Used:", |
| "%lld (max %lld) pages", SQLITE_STATUS_PAGECACHE_USED, bReset); |
| } |
| displayStatLine(pArg, "Number of Pcache Overflow Bytes:", |
| "%lld (max %lld) bytes", SQLITE_STATUS_PAGECACHE_OVERFLOW, bReset); |
| displayStatLine(pArg, "Largest Allocation:", |
| "%lld bytes", SQLITE_STATUS_MALLOC_SIZE, bReset); |
| displayStatLine(pArg, "Largest Pcache Allocation:", |
| "%lld bytes", SQLITE_STATUS_PAGECACHE_SIZE, bReset); |
| #ifdef YYTRACKMAXSTACKDEPTH |
| displayStatLine(pArg, "Deepest Parser Stack:", |
| "%lld (max %lld)", SQLITE_STATUS_PARSER_STACK, bReset); |
| #endif |
| |
| if( db ){ |
| if( pArg->shellFlgs & SHFLG_Lookaside ){ |
| iHiwtr = iCur = -1; |
| sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_USED, |
| &iCur, &iHiwtr, bReset); |
| raw_printf(pArg->out, |
| "Lookaside Slots Used: %d (max %d)\n", |
| iCur, iHiwtr); |
| sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_HIT, |
| &iCur, &iHiwtr, bReset); |
| raw_printf(pArg->out, "Successful lookaside attempts: %d\n", |
| iHiwtr); |
| sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE, |
| &iCur, &iHiwtr, bReset); |
| raw_printf(pArg->out, "Lookaside failures due to size: %d\n", |
| iHiwtr); |
| sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL, |
| &iCur, &iHiwtr, bReset); |
| raw_printf(pArg->out, "Lookaside failures due to OOM: %d\n", |
| iHiwtr); |
| } |
| iHiwtr = iCur = -1; |
| sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_USED, &iCur, &iHiwtr, bReset); |
| raw_printf(pArg->out, "Pager Heap Usage: %d bytes\n", |
| iCur); |
| iHiwtr = iCur = -1; |
| sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_HIT, &iCur, &iHiwtr, 1); |
| raw_printf(pArg->out, "Page cache hits: %d\n", iCur); |
| iHiwtr = iCur = -1; |
| sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_MISS, &iCur, &iHiwtr, 1); |
| raw_printf(pArg->out, "Page cache misses: %d\n", iCur); |
| iHiwtr = iCur = -1; |
| sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_WRITE, &iCur, &iHiwtr, 1); |
| raw_printf(pArg->out, "Page cache writes: %d\n", iCur); |
| iHiwtr = iCur = -1; |
| sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_SPILL, &iCur, &iHiwtr, 1); |
| raw_printf(pArg->out, "Page cache spills: %d\n", iCur); |
| iHiwtr = iCur = -1; |
| sqlite3_db_status(db, SQLITE_DBSTATUS_SCHEMA_USED, &iCur, &iHiwtr, bReset); |
| raw_printf(pArg->out, "Schema Heap Usage: %d bytes\n", |
| iCur); |
| iHiwtr = iCur = -1; |
| sqlite3_db_status(db, SQLITE_DBSTATUS_STMT_USED, &iCur, &iHiwtr, bReset); |
| raw_printf(pArg->out, "Statement Heap/Lookaside Usage: %d bytes\n", |
| iCur); |
| } |
| |
| if( pArg->pStmt ){ |
| iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_FULLSCAN_STEP, |
| bReset); |
| raw_printf(pArg->out, "Fullscan Steps: %d\n", iCur); |
| iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_SORT, bReset); |
| raw_printf(pArg->out, "Sort Operations: %d\n", iCur); |
| iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_AUTOINDEX,bReset); |
| raw_printf(pArg->out, "Autoindex Inserts: %d\n", iCur); |
| iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_VM_STEP, bReset); |
| raw_printf(pArg->out, "Virtual Machine Steps: %d\n", iCur); |
| iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_REPREPARE, bReset); |
| raw_printf(pArg->out, "Reprepare operations: %d\n", iCur); |
| iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_RUN, bReset); |
| raw_printf(pArg->out, "Number of times run: %d\n", iCur); |
| iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_MEMUSED, bReset); |
| raw_printf(pArg->out, "Memory used by prepared stmt: %d\n", iCur); |
| } |
| |
| #ifdef __linux__ |
| displayLinuxIoStats(pArg->out); |
| #endif |
| |
| /* Do not remove this machine readable comment: extra-stats-output-here */ |
| |
| return 0; |
| } |
| |
| /* |
| ** Display scan stats. |
| */ |
| static void display_scanstats( |
| sqlite3 *db, /* Database to query */ |
| ShellState *pArg /* Pointer to ShellState */ |
| ){ |
| #ifndef SQLITE_ENABLE_STMT_SCANSTATUS |
| UNUSED_PARAMETER(db); |
| UNUSED_PARAMETER(pArg); |
| #else |
| int i, k, n, mx; |
| raw_printf(pArg->out, "-------- scanstats --------\n"); |
| mx = 0; |
| for(k=0; k<=mx; k++){ |
| double rEstLoop = 1.0; |
| for(i=n=0; 1; i++){ |
| sqlite3_stmt *p = pArg->pStmt; |
| sqlite3_int64 nLoop, nVisit; |
| double rEst; |
| int iSid; |
| const char *zExplain; |
| if( sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_NLOOP, (void*)&nLoop) ){ |
| break; |
| } |
| sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_SELECTID, (void*)&iSid); |
| if( iSid>mx ) mx = iSid; |
| if( iSid!=k ) continue; |
| if( n==0 ){ |
| rEstLoop = (double)nLoop; |
| if( k>0 ) raw_printf(pArg->out, "-------- subquery %d -------\n", k); |
| } |
| n++; |
| sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_NVISIT, (void*)&nVisit); |
| sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_EST, (void*)&rEst); |
| sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_EXPLAIN, (void*)&zExplain); |
| utf8_printf(pArg->out, "Loop %2d: %s\n", n, zExplain); |
| rEstLoop *= rEst; |
| raw_printf(pArg->out, |
| " nLoop=%-8lld nRow=%-8lld estRow=%-8lld estRow/Loop=%-8g\n", |
| nLoop, nVisit, (sqlite3_int64)(rEstLoop+0.5), rEst |
| ); |
| } |
| } |
| raw_printf(pArg->out, "---------------------------\n"); |
| #endif |
| } |
| |
| /* |
| ** Parameter azArray points to a zero-terminated array of strings. zStr |
| ** points to a single nul-terminated string. Return non-zero if zStr |
| ** is equal, according to strcmp(), to any of the strings in the array. |
| ** Otherwise, return zero. |
| */ |
| static int str_in_array(const char *zStr, const char **azArray){ |
| int i; |
| for(i=0; azArray[i]; i++){ |
| if( 0==strcmp(zStr, azArray[i]) ) return 1; |
| } |
| return 0; |
| } |
| |
| /* |
| ** If compiled statement pSql appears to be an EXPLAIN statement, allocate |
| ** and populate the ShellState.aiIndent[] array with the number of |
| ** spaces each opcode should be indented before it is output. |
| ** |
| ** The indenting rules are: |
| ** |
| ** * For each "Next", "Prev", "VNext" or "VPrev" instruction, indent |
| ** all opcodes that occur between the p2 jump destination and the opcode |
| ** itself by 2 spaces. |
| ** |
| ** * For each "Goto", if the jump destination is earlier in the program |
| ** and ends on one of: |
| ** Yield SeekGt SeekLt RowSetRead Rewind |
| ** or if the P1 parameter is one instead of zero, |
| ** then indent all opcodes between the earlier instruction |
| ** and "Goto" by 2 spaces. |
| */ |
| static void explain_data_prepare(ShellState *p, sqlite3_stmt *pSql){ |
| const char *zSql; /* The text of the SQL statement */ |
| const char *z; /* Used to check if this is an EXPLAIN */ |
| int *abYield = 0; /* True if op is an OP_Yield */ |
| int nAlloc = 0; /* Allocated size of p->aiIndent[], abYield */ |
| int iOp; /* Index of operation in p->aiIndent[] */ |
| |
| const char *azNext[] = { "Next", "Prev", "VPrev", "VNext", "SorterNext", 0 }; |
| const char *azYield[] = { "Yield", "SeekLT", "SeekGT", "RowSetRead", |
| "Rewind", 0 }; |
| const char *azGoto[] = { "Goto", 0 }; |
| |
| /* Try to figure out if this is really an EXPLAIN statement. If this |
| ** cannot be verified, return early. */ |
| if( sqlite3_column_count(pSql)!=8 ){ |
| p->cMode = p->mode; |
| return; |
| } |
| zSql = sqlite3_sql(pSql); |
| if( zSql==0 ) return; |
| for(z=zSql; *z==' ' || *z=='\t' || *z=='\n' || *z=='\f' || *z=='\r'; z++); |
| if( sqlite3_strnicmp(z, "explain", 7) ){ |
| p->cMode = p->mode; |
| return; |
| } |
| |
| for(iOp=0; SQLITE_ROW==sqlite3_step(pSql); iOp++){ |
| int i; |
| int iAddr = sqlite3_column_int(pSql, 0); |
| const char *zOp = (const char*)sqlite3_column_text(pSql, 1); |
| |
| /* Set p2 to the P2 field of the current opcode. Then, assuming that |
| ** p2 is an instruction address, set variable p2op to the index of that |
| ** instruction in the aiIndent[] array. p2 and p2op may be different if |
| ** the current instruction is part of a sub-program generated by an |
| ** SQL trigger or foreign key. */ |
| int p2 = sqlite3_column_int(pSql, 3); |
| int p2op = (p2 + (iOp-iAddr)); |
| |
| /* Grow the p->aiIndent array as required */ |
| if( iOp>=nAlloc ){ |
| if( iOp==0 ){ |
| /* Do further verfication that this is explain output. Abort if |
| ** it is not */ |
| static const char *explainCols[] = { |
| "addr", "opcode", "p1", "p2", "p3", "p4", "p5", "comment" }; |
| int jj; |
| for(jj=0; jj<ArraySize(explainCols); jj++){ |
| if( strcmp(sqlite3_column_name(pSql,jj),explainCols[jj])!=0 ){ |
| p->cMode = p->mode; |
| sqlite3_reset(pSql); |
| return; |
| } |
| } |
| } |
| nAlloc += 100; |
| p->aiIndent = (int*)sqlite3_realloc64(p->aiIndent, nAlloc*sizeof(int)); |
| if( p->aiIndent==0 ) shell_out_of_memory(); |
| abYield = (int*)sqlite3_realloc64(abYield, nAlloc*sizeof(int)); |
| if( abYield==0 ) shell_out_of_memory(); |
| } |
| abYield[iOp] = str_in_array(zOp, azYield); |
| p->aiIndent[iOp] = 0; |
| p->nIndent = iOp+1; |
| |
| if( str_in_array(zOp, azNext) ){ |
| for(i=p2op; i<iOp; i++) p->aiIndent[i] += 2; |
| } |
| if( str_in_array(zOp, azGoto) && p2op<p->nIndent |
| && (abYield[p2op] || sqlite3_column_int(pSql, 2)) |
| ){ |
| for(i=p2op; i<iOp; i++) p->aiIndent[i] += 2; |
| } |
| } |
| |
| p->iIndent = 0; |
| sqlite3_free(abYield); |
| sqlite3_reset(pSql); |
| } |
| |
| /* |
| ** Free the array allocated by explain_data_prepare(). |
| */ |
| static void explain_data_delete(ShellState *p){ |
| sqlite3_free(p->aiIndent); |
| p->aiIndent = 0; |
| p->nIndent = 0; |
| p->iIndent = 0; |
| } |
| |
| /* |
| ** Disable and restore .wheretrace and .selecttrace settings. |
| */ |
| #if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_SELECTTRACE) |
| extern int sqlite3SelectTrace; |
| static int savedSelectTrace; |
| #endif |
| #if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE) |
| extern int sqlite3WhereTrace; |
| static int savedWhereTrace; |
| #endif |
| static void disable_debug_trace_modes(void){ |
| #if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_SELECTTRACE) |
| savedSelectTrace = sqlite3SelectTrace; |
| sqlite3SelectTrace = 0; |
| #endif |
| #if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE) |
| savedWhereTrace = sqlite3WhereTrace; |
| sqlite3WhereTrace = 0; |
| #endif |
| } |
| static void restore_debug_trace_modes(void){ |
| #if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_SELECTTRACE) |
| sqlite3SelectTrace = savedSelectTrace; |
| #endif |
| #if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE) |
| sqlite3WhereTrace = savedWhereTrace; |
| #endif |
| } |
| |
| /* Create the TEMP table used to store parameter bindings */ |
| static void bind_table_init(ShellState *p){ |
| int wrSchema = 0; |
| sqlite3_db_config(p->db, SQLITE_DBCONFIG_WRITABLE_SCHEMA, -1, &wrSchema); |
| sqlite3_db_config(p->db, SQLITE_DBCONFIG_WRITABLE_SCHEMA, 1, 0); |
| sqlite3_exec(p->db, |
| "CREATE TABLE IF NOT EXISTS temp.sqlite_parameters(\n" |
| " key TEXT PRIMARY KEY,\n" |
| " value ANY\n" |
| ") WITHOUT ROWID;", |
| 0, 0, 0); |
| sqlite3_db_config(p->db, SQLITE_DBCONFIG_WRITABLE_SCHEMA, wrSchema, 0); |
| } |
| |
| /* |
| ** Bind parameters on a prepared statement. |
| ** |
| ** Parameter bindings are taken from a TEMP table of the form: |
| ** |
| ** CREATE TEMP TABLE sqlite_parameters(key TEXT PRIMARY KEY, value) |
| ** WITHOUT ROWID; |
| ** |
| ** No bindings occur if this table does not exist. The special character '$' |
| ** is included in the table name to help prevent collisions with actual tables. |
| ** The table must be in the TEMP schema. |
| */ |
| static void bind_prepared_stmt(ShellState *pArg, sqlite3_stmt *pStmt){ |
| int nVar; |
| int i; |
| int rc; |
| sqlite3_stmt *pQ = 0; |
| |
| nVar = sqlite3_bind_parameter_count(pStmt); |
| if( nVar==0 ) return; /* Nothing to do */ |
| if( sqlite3_table_column_metadata(pArg->db, "TEMP", "sqlite_parameters", |
| "key", 0, 0, 0, 0, 0)!=SQLITE_OK ){ |
| return; /* Parameter table does not exist */ |
| } |
| rc = sqlite3_prepare_v2(pArg->db, |
| "SELECT value FROM temp.sqlite_parameters" |
| " WHERE key=?1", -1, &pQ, 0); |
| if( rc || pQ==0 ) return; |
| for(i=1; i<=nVar; i++){ |
| char zNum[30]; |
| const char *zVar = sqlite3_bind_parameter_name(pStmt, i); |
| if( zVar==0 ){ |
| sqlite3_snprintf(sizeof(zNum),zNum,"?%d",i); |
| zVar = zNum; |
| } |
| sqlite3_bind_text(pQ, 1, zVar, -1, SQLITE_STATIC); |
| if( sqlite3_step(pQ)==SQLITE_ROW ){ |
| sqlite3_bind_value(pStmt, i, sqlite3_column_value(pQ, 0)); |
| }else{ |
| sqlite3_bind_null(pStmt, i); |
| } |
| sqlite3_reset(pQ); |
| } |
| sqlite3_finalize(pQ); |
| } |
| |
| /* |
| ** Run a prepared statement |
| */ |
| static void exec_prepared_stmt( |
| ShellState *pArg, /* Pointer to ShellState */ |
| sqlite3_stmt *pStmt /* Statment to run */ |
| ){ |
| int rc; |
| |
| /* perform the first step. this will tell us if we |
| ** have a result set or not and how wide it is. |
| */ |
| rc = sqlite3_step(pStmt); |
| /* if we have a result set... */ |
| if( SQLITE_ROW == rc ){ |
| /* allocate space for col name ptr, value ptr, and type */ |
| int nCol = sqlite3_column_count(pStmt); |
| void *pData = sqlite3_malloc64(3*nCol*sizeof(const char*) + 1); |
| if( !pData ){ |
| rc = SQLITE_NOMEM; |
| }else{ |
| char **azCols = (char **)pData; /* Names of result columns */ |
| char **azVals = &azCols[nCol]; /* Results */ |
| int *aiTypes = (int *)&azVals[nCol]; /* Result types */ |
| int i, x; |
| assert(sizeof(int) <= sizeof(char *)); |
| /* save off ptrs to column names */ |
| for(i=0; i<nCol; i++){ |
| azCols[i] = (char *)sqlite3_column_name(pStmt, i); |
| } |
| do{ |
| /* extract the data and data types */ |
| for(i=0; i<nCol; i++){ |
| aiTypes[i] = x = sqlite3_column_type(pStmt, i); |
| if( x==SQLITE_BLOB && pArg && pArg->cMode==MODE_Insert ){ |
| azVals[i] = ""; |
| }else{ |
| azVals[i] = (char*)sqlite3_column_text(pStmt, i); |
| } |
| if( !azVals[i] && (aiTypes[i]!=SQLITE_NULL) ){ |
| rc = SQLITE_NOMEM; |
| break; /* from for */ |
| } |
| } /* end for */ |
| |
| /* if data and types extracted successfully... */ |
| if( SQLITE_ROW == rc ){ |
| /* call the supplied callback with the result row data */ |
| if( shell_callback(pArg, nCol, azVals, azCols, aiTypes) ){ |
| rc = SQLITE_ABORT; |
| }else{ |
| rc = sqlite3_step(pStmt); |
| } |
| } |
| } while( SQLITE_ROW == rc ); |
| sqlite3_free(pData); |
| } |
| } |
| } |
| |
| #ifndef SQLITE_OMIT_VIRTUALTABLE |
| /* |
| ** This function is called to process SQL if the previous shell command |
| ** was ".expert". It passes the SQL in the second argument directly to |
| ** the sqlite3expert object. |
| ** |
| ** If successful, SQLITE_OK is returned. Otherwise, an SQLite error |
| ** code. In this case, (*pzErr) may be set to point to a buffer containing |
| ** an English language error message. It is the responsibility of the |
| ** caller to eventually free this buffer using sqlite3_free(). |
| */ |
| static int expertHandleSQL( |
| ShellState *pState, |
| const char *zSql, |
| char **pzErr |
| ){ |
| assert( pState->expert.pExpert ); |
| assert( pzErr==0 || *pzErr==0 ); |
| return sqlite3_expert_sql(pState->expert.pExpert, zSql, pzErr); |
| } |
| |
| /* |
| ** This function is called either to silently clean up the object |
| ** created by the ".expert" command (if bCancel==1), or to generate a |
| ** report from it and then clean it up (if bCancel==0). |
| ** |
| ** If successful, SQLITE_OK is returned. Otherwise, an SQLite error |
| ** code. In this case, (*pzErr) may be set to point to a buffer containing |
| ** an English language error message. It is the responsibility of the |
| ** caller to eventually free this buffer using sqlite3_free(). |
| */ |
| static int expertFinish( |
| ShellState *pState, |
| int bCancel, |
| char **pzErr |
| ){ |
| int rc = SQLITE_OK; |
| sqlite3expert *p = pState->expert.pExpert; |
| assert( p ); |
| assert( bCancel || pzErr==0 || *pzErr==0 ); |
| if( bCancel==0 ){ |
| FILE *out = pState->out; |
| int bVerbose = pState->expert.bVerbose; |
| |
| rc = sqlite3_expert_analyze(p, pzErr); |
| if( rc==SQLITE_OK ){ |
| int nQuery = sqlite3_expert_count(p); |
| int i; |
| |
| if( bVerbose ){ |
| const char *zCand = sqlite3_expert_report(p,0,EXPERT_REPORT_CANDIDATES); |
| raw_printf(out, "-- Candidates -----------------------------\n"); |
| raw_printf(out, "%s\n", zCand); |
| } |
| for(i=0; i<nQuery; i++){ |
| const char *zSql = sqlite3_expert_report(p, i, EXPERT_REPORT_SQL); |
| const char *zIdx = sqlite3_expert_report(p, i, EXPERT_REPORT_INDEXES); |
| const char *zEQP = sqlite3_expert_report(p, i, EXPERT_REPORT_PLAN); |
| if( zIdx==0 ) zIdx = "(no new indexes)\n"; |
| if( bVerbose ){ |
| raw_printf(out, "-- Query %d --------------------------------\n",i+1); |
| raw_printf(out, "%s\n\n", zSql); |
| } |
| raw_printf(out, "%s\n", zIdx); |
| raw_printf(out, "%s\n", zEQP); |
| } |
| } |
| } |
| sqlite3_expert_destroy(p); |
| pState->expert.pExpert = 0; |
| return rc; |
| } |
| |
| /* |
| ** Implementation of ".expert" dot command. |
| */ |
| static int expertDotCommand( |
| ShellState *pState, /* Current shell tool state */ |
| char **azArg, /* Array of arguments passed to dot command */ |
| int nArg /* Number of entries in azArg[] */ |
| ){ |
| int rc = SQLITE_OK; |
| char *zErr = 0; |
| int i; |
| int iSample = 0; |
| |
| assert( pState->expert.pExpert==0 ); |
| memset(&pState->expert, 0, sizeof(ExpertInfo)); |
| |
| for(i=1; rc==SQLITE_OK && i<nArg; i++){ |
| char *z = azArg[i]; |
| int n; |
| if( z[0]=='-' && z[1]=='-' ) z++; |
| n = strlen30(z); |
| if( n>=2 && 0==strncmp(z, "-verbose", n) ){ |
| pState->expert.bVerbose = 1; |
| } |
| else if( n>=2 && 0==strncmp(z, "-sample", n) ){ |
| if( i==(nArg-1) ){ |
| raw_printf(stderr, "option requires an argument: %s\n", z); |
| rc = SQLITE_ERROR; |
| }else{ |
| iSample = (int)integerValue(azArg[++i]); |
| if( iSample<0 || iSample>100 ){ |
| raw_printf(stderr, "value out of range: %s\n", azArg[i]); |
| rc = SQLITE_ERROR; |
| } |
| } |
| } |
| else{ |
| raw_printf(stderr, "unknown option: %s\n", z); |
| rc = SQLITE_ERROR; |
| } |
| } |
| |
| if( rc==SQLITE_OK ){ |
| pState->expert.pExpert = sqlite3_expert_new(pState->db, &zErr); |
| if( pState->expert.pExpert==0 ){ |
| raw_printf(stderr, "sqlite3_expert_new: %s\n", zErr); |
| rc = SQLITE_ERROR; |
| }else{ |
| sqlite3_expert_config( |
| pState->expert.pExpert, EXPERT_CONFIG_SAMPLE, iSample |
| ); |
| } |
| } |
| |
| return rc; |
| } |
| #endif /* ifndef SQLITE_OMIT_VIRTUALTABLE */ |
| |
| /* |
| ** Execute a statement or set of statements. Print |
| ** any result rows/columns depending on the current mode |
| ** set via the supplied callback. |
| ** |
| ** This is very similar to SQLite's built-in sqlite3_exec() |
| ** function except it takes a slightly different callback |
| ** and callback data argument. |
| */ |
| static int shell_exec( |
| ShellState *pArg, /* Pointer to ShellState */ |
| const char *zSql, /* SQL to be evaluated */ |
| char **pzErrMsg /* Error msg written here */ |
| ){ |
| sqlite3_stmt *pStmt = NULL; /* Statement to execute. */ |
| int rc = SQLITE_OK; /* Return Code */ |
| int rc2; |
| const char *zLeftover; /* Tail of unprocessed SQL */ |
| sqlite3 *db = pArg->db; |
| |
| if( pzErrMsg ){ |
| *pzErrMsg = NULL; |
| } |
| |
| #ifndef SQLITE_OMIT_VIRTUALTABLE |
| if( pArg->expert.pExpert ){ |
| rc = expertHandleSQL(pArg, zSql, pzErrMsg); |
| return expertFinish(pArg, (rc!=SQLITE_OK), pzErrMsg); |
| } |
| #endif |
| |
| while( zSql[0] && (SQLITE_OK == rc) ){ |
| static const char *zStmtSql; |
| rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, &zLeftover); |
| if( SQLITE_OK != rc ){ |
| if( pzErrMsg ){ |
| *pzErrMsg = save_err_msg(db); |
| } |
| }else{ |
| if( !pStmt ){ |
| /* this happens for a comment or white-space */ |
| zSql = zLeftover; |
| while( IsSpace(zSql[0]) ) zSql++; |
| continue; |
| } |
| zStmtSql = sqlite3_sql(pStmt); |
| if( zStmtSql==0 ) zStmtSql = ""; |
| while( IsSpace(zStmtSql[0]) ) zStmtSql++; |
| |
| /* save off the prepared statment handle and reset row count */ |
| if( pArg ){ |
| pArg->pStmt = pStmt; |
| pArg->cnt = 0; |
| } |
| |
| /* echo the sql statement if echo on */ |
| if( pArg && ShellHasFlag(pArg, SHFLG_Echo) ){ |
| utf8_printf(pArg->out, "%s\n", zStmtSql ? zStmtSql : zSql); |
| } |
| |
| /* Show the EXPLAIN QUERY PLAN if .eqp is on */ |
| if( pArg && pArg->autoEQP && sqlite3_stmt_isexplain(pStmt)==0 ){ |
| sqlite3_stmt *pExplain; |
| char *zEQP; |
| int triggerEQP = 0; |
| disable_debug_trace_modes(); |
| sqlite3_db_config(db, SQLITE_DBCONFIG_TRIGGER_EQP, -1, &triggerEQP); |
| if( pArg->autoEQP>=AUTOEQP_trigger ){ |
| sqlite3_db_config(db, SQLITE_DBCONFIG_TRIGGER_EQP, 1, 0); |
| } |
| zEQP = sqlite3_mprintf("EXPLAIN QUERY PLAN %s", zStmtSql); |
| rc = sqlite3_prepare_v2(db, zEQP, -1, &pExplain, 0); |
| if( rc==SQLITE_OK ){ |
| while( sqlite3_step(pExplain)==SQLITE_ROW ){ |
| const char *zEQPLine = (const char*)sqlite3_column_text(pExplain,3); |
| int iEqpId = sqlite3_column_int(pExplain, 0); |
| int iParentId = sqlite3_column_int(pExplain, 1); |
| if( zEQPLine[0]=='-' ) eqp_render(pArg); |
| eqp_append(pArg, iEqpId, iParentId, zEQPLine); |
| } |
| eqp_render(pArg); |
| } |
| sqlite3_finalize(pExplain); |
| sqlite3_free(zEQP); |
| if( pArg->autoEQP>=AUTOEQP_full ){ |
| /* Also do an EXPLAIN for ".eqp full" mode */ |
| zEQP = sqlite3_mprintf("EXPLAIN %s", zStmtSql); |
| rc = sqlite3_prepare_v2(db, zEQP, -1, &pExplain, 0); |
| if( rc==SQLITE_OK ){ |
| pArg->cMode = MODE_Explain; |
| explain_data_prepare(pArg, pExplain); |
| exec_prepared_stmt(pArg, pExplain); |
| explain_data_delete(pArg); |
| } |
| sqlite3_finalize(pExplain); |
| sqlite3_free(zEQP); |
| } |
| if( pArg->autoEQP>=AUTOEQP_trigger && triggerEQP==0 ){ |
| sqlite3_db_config(db, SQLITE_DBCONFIG_TRIGGER_EQP, 0, 0); |
| /* Reprepare pStmt before reactiving trace modes */ |
| sqlite3_finalize(pStmt); |
| sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0); |
| if( pArg ) pArg->pStmt = pStmt; |
| } |
| restore_debug_trace_modes(); |
| } |
| |
| if( pArg ){ |
| pArg->cMode = pArg->mode; |
| if( pArg->autoExplain ){ |
| if( sqlite3_stmt_isexplain(pStmt)==1 ){ |
| pArg->cMode = MODE_Explain; |
| } |
| if( sqlite3_stmt_isexplain(pStmt)==2 ){ |
| pArg->cMode = MODE_EQP; |
| } |
| } |
| |
| /* If the shell is currently in ".explain" mode, gather the extra |
| ** data required to add indents to the output.*/ |
| if( pArg->cMode==MODE_Explain ){ |
| explain_data_prepare(pArg, pStmt); |
| } |
| } |
| |
| bind_prepared_stmt(pArg, pStmt); |
| exec_prepared_stmt(pArg, pStmt); |
| explain_data_delete(pArg); |
| eqp_render(pArg); |
| |
| /* print usage stats if stats on */ |
| if( pArg && pArg->statsOn ){ |
| display_stats(db, pArg, 0); |
| } |
| |
| /* print loop-counters if required */ |
| if( pArg && pArg->scanstatsOn ){ |
| display_scanstats(db, pArg); |
| } |
| |
| /* Finalize the statement just executed. If this fails, save a |
| ** copy of the error message. Otherwise, set zSql to point to the |
| ** next statement to execute. */ |
| rc2 = sqlite3_finalize(pStmt); |
| if( rc!=SQLITE_NOMEM ) rc = rc2; |
| if( rc==SQLITE_OK ){ |
| zSql = zLeftover; |
| while( IsSpace(zSql[0]) ) zSql++; |
| }else if( pzErrMsg ){ |
| *pzErrMsg = save_err_msg(db); |
| } |
| |
| /* clear saved stmt handle */ |
| if( pArg ){ |
| pArg->pStmt = NULL; |
| } |
| } |
| } /* end while */ |
| |
| return rc; |
| } |
| |
| /* |
| ** Release memory previously allocated by tableColumnList(). |
| */ |
| static void freeColumnList(char **azCol){ |
| int i; |
| for(i=1; azCol[i]; i++){ |
| sqlite3_free(azCol[i]); |
| } |
| /* azCol[0] is a static string */ |
| sqlite3_free(azCol); |
| } |
| |
| /* |
| ** Return a list of pointers to strings which are the names of all |
| ** columns in table zTab. The memory to hold the names is dynamically |
| ** allocated and must be released by the caller using a subsequent call |
| ** to freeColumnList(). |
| ** |
| ** The azCol[0] entry is usually NULL. However, if zTab contains a rowid |
| ** value that needs to be preserved, then azCol[0] is filled in with the |
| ** name of the rowid column. |
| ** |
| ** The first regular column in the table is azCol[1]. The list is terminated |
| ** by an entry with azCol[i]==0. |
| */ |
| static char **tableColumnList(ShellState *p, const char *zTab){ |
| char **azCol = 0; |
| sqlite3_stmt *pStmt; |
| char *zSql; |
| int nCol = 0; |
| int nAlloc = 0; |
| int nPK = 0; /* Number of PRIMARY KEY columns seen */ |
| int isIPK = 0; /* True if one PRIMARY KEY column of type INTEGER */ |
| int preserveRowid = ShellHasFlag(p, SHFLG_PreserveRowid); |
| int rc; |
| |
| zSql = sqlite3_mprintf("PRAGMA table_info=%Q", zTab); |
| rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0); |
| sqlite3_free(zSql); |
| if( rc ) return 0; |
| while( sqlite3_step(pStmt)==SQLITE_ROW ){ |
| if( nCol>=nAlloc-2 ){ |
| nAlloc = nAlloc*2 + nCol + 10; |
| azCol = sqlite3_realloc(azCol, nAlloc*sizeof(azCol[0])); |
| if( azCol==0 ) shell_out_of_memory(); |
| } |
| azCol[++nCol] = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 1)); |
| if( sqlite3_column_int(pStmt, 5) ){ |
| nPK++; |
| if( nPK==1 |
| && sqlite3_stricmp((const char*)sqlite3_column_text(pStmt,2), |
| "INTEGER")==0 |
| ){ |
| isIPK = 1; |
| }else{ |
| isIPK = 0; |
| } |
| } |
| } |
| sqlite3_finalize(pStmt); |
| if( azCol==0 ) return 0; |
| azCol[0] = 0; |
| azCol[nCol+1] = 0; |
| |
| /* The decision of whether or not a rowid really needs to be preserved |
| ** is tricky. We never need to preserve a rowid for a WITHOUT ROWID table |
| ** or a table with an INTEGER PRIMARY KEY. We are unable to preserve |
| ** rowids on tables where the rowid is inaccessible because there are other |
| ** columns in the table named "rowid", "_rowid_", and "oid". |
| */ |
| if( preserveRowid && isIPK ){ |
| /* If a single PRIMARY KEY column with type INTEGER was seen, then it |
| ** might be an alise for the ROWID. But it might also be a WITHOUT ROWID |
| ** table or a INTEGER PRIMARY KEY DESC column, neither of which are |
| ** ROWID aliases. To distinguish these cases, check to see if |
| ** there is a "pk" entry in "PRAGMA index_list". There will be |
| ** no "pk" index if the PRIMARY KEY really is an alias for the ROWID. |
| */ |
| zSql = sqlite3_mprintf("SELECT 1 FROM pragma_index_list(%Q)" |
| " WHERE origin='pk'", zTab); |
| rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0); |
| sqlite3_free(zSql); |
| if( rc ){ |
| freeColumnList(azCol); |
| return 0; |
| } |
| rc = sqlite3_step(pStmt); |
| sqlite3_finalize(pStmt); |
| preserveRowid = rc==SQLITE_ROW; |
| } |
| if( preserveRowid ){ |
| /* Only preserve the rowid if we can find a name to use for the |
| ** rowid */ |
| static char *azRowid[] = { "rowid", "_rowid_", "oid" }; |
| int i, j; |
| for(j=0; j<3; j++){ |
| for(i=1; i<=nCol; i++){ |
| if( sqlite3_stricmp(azRowid[j],azCol[i])==0 ) break; |
| } |
| if( i>nCol ){ |
| /* At this point, we know that azRowid[j] is not the name of any |
| ** ordinary column in the table. Verify that azRowid[j] is a valid |
| ** name for the rowid before adding it to azCol[0]. WITHOUT ROWID |
| ** tables will fail this last check */ |
| rc = sqlite3_table_column_metadata(p->db,0,zTab,azRowid[j],0,0,0,0,0); |
| if( rc==SQLITE_OK ) azCol[0] = azRowid[j]; |
| break; |
| } |
| } |
| } |
| return azCol; |
| } |
| |
| /* |
| ** Toggle the reverse_unordered_selects setting. |
| */ |
| static void toggleSelectOrder(sqlite3 *db){ |
| sqlite3_stmt *pStmt = 0; |
| int iSetting = 0; |
| char zStmt[100]; |
| sqlite3_prepare_v2(db, "PRAGMA reverse_unordered_selects", -1, &pStmt, 0); |
| if( sqlite3_step(pStmt)==SQLITE_ROW ){ |
| iSetting = sqlite3_column_int(pStmt, 0); |
| } |
| sqlite3_finalize(pStmt); |
| sqlite3_snprintf(sizeof(zStmt), zStmt, |
| "PRAGMA reverse_unordered_selects(%d)", !iSetting); |
| sqlite3_exec(db, zStmt, 0, 0, 0); |
| } |
| |
| /* |
| ** This is a different callback routine used for dumping the database. |
| ** Each row received by this callback consists of a table name, |
| ** the table type ("index" or "table") and SQL to create the table. |
| ** This routine should print text sufficient to recreate the table. |
| */ |
| static int dump_callback(void *pArg, int nArg, char **azArg, char **azNotUsed){ |
| int rc; |
| const char *zTable; |
| const char *zType; |
| const char *zSql; |
| ShellState *p = (ShellState *)pArg; |
| |
| UNUSED_PARAMETER(azNotUsed); |
| if( nArg!=3 || azArg==0 ) return 0; |
| zTable = azArg[0]; |
| zType = azArg[1]; |
| zSql = azArg[2]; |
| |
| if( strcmp(zTable, "sqlite_sequence")==0 ){ |
| raw_printf(p->out, "DELETE FROM sqlite_sequence;\n"); |
| }else if( sqlite3_strglob("sqlite_stat?", zTable)==0 ){ |
| raw_printf(p->out, "ANALYZE sqlite_master;\n"); |
| }else if( strncmp(zTable, "sqlite_", 7)==0 ){ |
| return 0; |
| }else if( strncmp(zSql, "CREATE VIRTUAL TABLE", 20)==0 ){ |
| char *zIns; |
| if( !p->writableSchema ){ |
| raw_printf(p->out, "PRAGMA writable_schema=ON;\n"); |
| p->writableSchema = 1; |
| } |
| zIns = sqlite3_mprintf( |
| "INSERT INTO sqlite_master(type,name,tbl_name,rootpage,sql)" |
| "VALUES('table','%q','%q',0,'%q');", |
| zTable, zTable, zSql); |
| utf8_printf(p->out, "%s\n", zIns); |
| sqlite3_free(zIns); |
| return 0; |
| }else{ |
| printSchemaLine(p->out, zSql, ";\n"); |
| } |
| |
| if( strcmp(zType, "table")==0 ){ |
| ShellText sSelect; |
| ShellText sTable; |
| char **azCol; |
| int i; |
| char *savedDestTable; |
| int savedMode; |
| |
| azCol = tableColumnList(p, zTable); |
| if( azCol==0 ){ |
| p->nErr++; |
| return 0; |
| } |
| |
| /* Always quote the table name, even if it appears to be pure ascii, |
| ** in case it is a keyword. Ex: INSERT INTO "table" ... */ |
| initText(&sTable); |
| appendText(&sTable, zTable, quoteChar(zTable)); |
| /* If preserving the rowid, add a column list after the table name. |
| ** In other words: "INSERT INTO tab(rowid,a,b,c,...) VALUES(...)" |
| ** instead of the usual "INSERT INTO tab VALUES(...)". |
| */ |
| if( azCol[0] ){ |
| appendText(&sTable, "(", 0); |
| appendText(&sTable, azCol[0], 0); |
| for(i=1; azCol[i]; i++){ |
| appendText(&sTable, ",", 0); |
| appendText(&sTable, azCol[i], quoteChar(azCol[i])); |
| } |
| appendText(&sTable, ")", 0); |
| } |
| |
| /* Build an appropriate SELECT statement */ |
| initText(&sSelect); |
| appendText(&sSelect, "SELECT ", 0); |
| if( azCol[0] ){ |
| appendText(&sSelect, azCol[0], 0); |
| appendText(&sSelect, ",", 0); |
| } |
| for(i=1; azCol[i]; i++){ |
| appendText(&sSelect, azCol[i], quoteChar(azCol[i])); |
| if( azCol[i+1] ){ |
| appendText(&sSelect, ",", 0); |
| } |
| } |
| freeColumnList(azCol); |
| appendText(&sSelect, " FROM ", 0); |
| appendText(&sSelect, zTable, quoteChar(zTable)); |
| |
| savedDestTable = p->zDestTable; |
| savedMode = p->mode; |
| p->zDestTable = sTable.z; |
| p->mode = p->cMode = MODE_Insert; |
| rc = shell_exec(p, sSelect.z, 0); |
| if( (rc&0xff)==SQLITE_CORRUPT ){ |
| raw_printf(p->out, "/****** CORRUPTION ERROR *******/\n"); |
| toggleSelectOrder(p->db); |
| shell_exec(p, sSelect.z, 0); |
| toggleSelectOrder(p->db); |
| } |
| p->zDestTable = savedDestTable; |
| p->mode = savedMode; |
| freeText(&sTable); |
| freeText(&sSelect); |
| if( rc ) p->nErr++; |
| } |
| return 0; |
| } |
| |
| /* |
| ** Run zQuery. Use dump_callback() as the callback routine so that |
| ** the contents of the query are output as SQL statements. |
| ** |
| ** If we get a SQLITE_CORRUPT error, rerun the query after appending |
| ** "ORDER BY rowid DESC" to the end. |
| */ |
| static int run_schema_dump_query( |
| ShellState *p, |
| const char *zQuery |
| ){ |
| int rc; |
| char *zErr = 0; |
| rc = sqlite3_exec(p->db, zQuery, dump_callback, p, &zErr); |
| if( rc==SQLITE_CORRUPT ){ |
| char *zQ2; |
| int len = strlen30(zQuery); |
| raw_printf(p->out, "/****** CORRUPTION ERROR *******/\n"); |
| if( zErr ){ |
| utf8_printf(p->out, "/****** %s ******/\n", zErr); |
| sqlite3_free(zErr); |
| zErr = 0; |
| } |
| zQ2 = malloc( len+100 ); |
| if( zQ2==0 ) return rc; |
| sqlite3_snprintf(len+100, zQ2, "%s ORDER BY rowid DESC", zQuery); |
| rc = sqlite3_exec(p->db, zQ2, dump_callback, p, &zErr); |
| if( rc ){ |
| utf8_printf(p->out, "/****** ERROR: %s ******/\n", zErr); |
| }else{ |
| rc = SQLITE_CORRUPT; |
| } |
| sqlite3_free(zErr); |
| free(zQ2); |
| } |
| return rc; |
| } |
| |
| /* |
| ** Text of help messages. |
| ** |
| ** The help text for each individual command begins with a line that starts |
| ** with ".". Subsequent lines are supplimental information. |
| ** |
| ** There must be two or more spaces between the end of the command and the |
| ** start of the description of what that command does. |
| */ |
| static const char *(azHelp[]) = { |
| #if defined(SQLITE_HAVE_ZLIB) && !defined(SQLITE_OMIT_VIRTUALTABLE) |
| ".archive ... Manage SQL archives", |
| " Each command must have exactly one of the following options:", |
| " -c, --create Create a new archive", |
| " -u, --update Add files or update files with changed mtime", |
| " -i, --insert Like -u but always add even if mtime unchanged", |
| " -t, --list List contents of archive", |
| " -x, --extract Extract files from archive", |
| " Optional arguments:", |
| " -v, --verbose Print each filename as it is processed", |
| " -f FILE, --file FILE Operate on archive FILE (default is current db)", |
| " -a FILE, --append FILE Operate on FILE opened using the apndvfs VFS", |
| " -C DIR, --directory DIR Change to directory DIR to read/extract files", |
| " -n, --dryrun Show the SQL that would have occurred", |
| " Examples:", |
| " .ar -cf archive.sar foo bar # Create archive.sar from files foo and bar", |
| " .ar -tf archive.sar # List members of archive.sar", |
| " .ar -xvf archive.sar # Verbosely extract files from archive.sar", |
| " See also:", |
| " http://sqlite.org/cli.html#sqlar_archive_support", |
| #endif |
| #ifndef SQLITE_OMIT_AUTHORIZATION |
| ".auth ON|OFF Show authorizer callbacks", |
| #endif |
| ".backup ?DB? FILE Backup DB (default \"main\") to FILE", |
| " --append Use the appendvfs", |
| " --async Write to FILE without a journal and without fsync()", |
| ".bail on|off Stop after hitting an error. Default OFF", |
| ".binary on|off Turn binary output on or off. Default OFF", |
| ".cd DIRECTORY Change the working directory to DIRECTORY", |
| ".changes on|off Show number of rows changed by SQL", |
| ".check GLOB Fail if output since .testcase does not match", |
| ".clone NEWDB Clone data into NEWDB from the existing database", |
| ".databases List names and files of attached databases", |
| ".dbconfig ?op? ?val? List or change sqlite3_db_config() options", |
| ".dbinfo ?DB? Show status information about the database", |
| ".dump ?TABLE? ... Render all database content as SQL", |
| " Options:", |
| " --preserve-rowids Include ROWID values in the output", |
| " --newlines Allow unescaped newline characters in output", |
| " TABLE is LIKE pattern for the tables to dump", |
| ".echo on|off Turn command echo on or off", |
| ".eqp on|off|full|... Enable or disable automatic EXPLAIN QUERY PLAN", |
| " Other Modes:", |
| #ifdef SQLITE_DEBUG |
| " test Show raw EXPLAIN QUERY PLAN output", |
| " trace Like \"full\" but also enable \"PRAGMA vdbe_trace\"", |
| #endif |
| " trigger Like \"full\" but also show trigger bytecode", |
| ".excel Display the output of next command in a spreadsheet", |
| ".exit ?CODE? Exit this program with return-code CODE", |
| ".expert EXPERIMENTAL. Suggest indexes for specified queries", |
| /* Because explain mode comes on automatically now, the ".explain" mode |
| ** is removed from the help screen. It is still supported for legacy, however */ |
| /*".explain ?on|off|auto? Turn EXPLAIN output mode on or off or to automatic",*/ |
| ".fullschema ?--indent? Show schema and the content of sqlite_stat tables", |
| ".headers on|off Turn display of headers on or off", |
| ".help ?-all? ?PATTERN? Show help text for PATTERN", |
| ".import FILE TABLE Import data from FILE into TABLE", |
| #ifndef SQLITE_OMIT_TEST_CONTROL |
| ".imposter INDEX TABLE Create imposter table TABLE on index INDEX", |
| #endif |
| ".indexes ?TABLE? Show names of indexes", |
| " If TABLE is specified, only show indexes for", |
| " tables matching TABLE using the LIKE operator.", |
| #ifdef SQLITE_ENABLE_IOTRACE |
| ".iotrace FILE Enable I/O diagnostic logging to FILE", |
| #endif |
| ".limit ?LIMIT? ?VAL? Display or change the value of an SQLITE_LIMIT", |
| ".lint OPTIONS Report potential schema issues.", |
| " Options:", |
| " fkey-indexes Find missing foreign key indexes", |
| #ifndef SQLITE_OMIT_LOAD_EXTENSION |
| ".load FILE ?ENTRY? Load an extension library", |
| #endif |
| ".log FILE|off Turn logging on or off. FILE can be stderr/stdout", |
| ".mode MODE ?TABLE? Set output mode", |
| " MODE is one of:", |
| " ascii Columns/rows delimited by 0x1F and 0x1E", |
| " csv Comma-separated values", |
| " column Left-aligned columns. (See .width)", |
| " html HTML <table> code", |
| " insert SQL insert statements for TABLE", |
| " line One value per line", |
| " list Values delimited by \"|\"", |
| " quote Escape answers as for SQL", |
| " tabs Tab-separated values", |
| " tcl TCL list elements", |
| ".nullvalue STRING Use STRING in place of NULL values", |
| ".once (-e|-x|FILE) Output for the next SQL command only to FILE", |
| " If FILE begins with '|' then open as a pipe", |
| " Other options:", |
| " -e Invoke system text editor", |
| " -x Open in a spreadsheet", |
| ".open ?OPTIONS? ?FILE? Close existing database and reopen FILE", |
| " Options:", |
| " --append Use appendvfs to append database to the end of FILE", |
| #ifdef SQLITE_ENABLE_DESERIALIZE |
| " --deserialize Load into memory useing sqlite3_deserialize()", |
| " --hexdb Load the output of \"dbtotxt\" as an in-memory database", |
| " --maxsize N Maximum size for --hexdb or --deserialized database", |
| #endif |
| " --new Initialize FILE to an empty database", |
| " --readonly Open FILE readonly", |
| " --zip FILE is a ZIP archive", |
| ".output ?FILE? Send output to FILE or stdout if FILE is omitted", |
| " If FILE begins with '|' then open it as a pipe.", |
| ".parameter CMD ... Manage SQL parameter bindings", |
| " clear Erase all bindings", |
| " init Initialize the TEMP table that holds bindings", |
| " list List the current parameter bindings", |
| " set PARAMETER VALUE Given SQL parameter PARAMETER a value of VALUE", |
| " PARAMETER should start with '$', ':', '@', or '?'", |
| " unset PARAMETER Remove PARAMETER from the binding table", |
| ".print STRING... Print literal STRING", |
| #ifndef SQLITE_OMIT_PROGRESS_CALLBACK |
| ".progress N Invoke progress handler after every N opcodes", |
| " --limit N Interrupt after N progress callbacks", |
| " --once Do no more than one progress interrupt", |
| " --quiet|-q No output except at interrupts", |
| " --reset Reset the count for each input and interrupt", |
| #endif |
| ".prompt MAIN CONTINUE Replace the standard prompts", |
| ".quit Exit this program", |
| ".read FILE Read input from FILE", |
| ".restore ?DB? FILE Restore content of DB (default \"main\") from FILE", |
| ".save FILE Write in-memory database into FILE", |
| ".scanstats on|off Turn sqlite3_stmt_scanstatus() metrics on or off", |
| ".schema ?PATTERN? Show the CREATE statements matching PATTERN", |
| " Options:", |
| " --indent Try to pretty-print the schema", |
| ".selftest ?OPTIONS? Run tests defined in the SELFTEST table", |
| " Options:", |
| " --init Create a new SELFTEST table", |
| " -v Verbose output", |
| ".separator COL ?ROW? Change the column and row separators", |
| #if defined(SQLITE_ENABLE_SESSION) |
| ".session ?NAME? CMD ... Create or control sessions", |
| " Subcommands:", |
| " attach TABLE Attach TABLE", |
| " changeset FILE Write a changeset into FILE", |
| " close Close one session", |
| " enable ?BOOLEAN? Set or query the enable bit", |
| " filter GLOB... Reject tables matching GLOBs", |
| " indirect ?BOOLEAN? Mark or query the indirect status", |
| " isempty Query whether the session is empty", |
| " list List currently open session names", |
| " open DB NAME Open a new session on DB", |
| " patchset FILE Write a patchset into FILE", |
| " If ?NAME? is omitted, the first defined session is used.", |
| #endif |
| ".sha3sum ... Compute a SHA3 hash of database content", |
| " Options:", |
| " --schema Also hash the sqlite_master table", |
| " --sha3-224 Use the sha3-224 algorithm", |
| " --sha3-256 Use the sha3-256 algorithm. This is the default.", |
| " --sha3-384 Use the sha3-384 algorithm", |
| " --sha3-512 Use the sha3-512 algorithm", |
| " Any other argument is a LIKE pattern for tables to hash", |
| #ifndef SQLITE_NOHAVE_SYSTEM |
| ".shell CMD ARGS... Run CMD ARGS... in a system shell", |
| #endif |
| ".show Show the current values for various settings", |
| ".stats ?on|off? Show stats or turn stats on or off", |
| #ifndef SQLITE_NOHAVE_SYSTEM |
| ".system CMD ARGS... Run CMD ARGS... in a system shell", |
| #endif |
| ".tables ?TABLE? List names of tables matching LIKE pattern TABLE", |
| ".testcase NAME Begin redirecting output to 'testcase-out.txt'", |
| ".timeout MS Try opening locked tables for MS milliseconds", |
| ".timer on|off Turn SQL timer on or off", |
| #ifndef SQLITE_OMIT_TRACE |
| ".trace ?OPTIONS? Output each SQL statement as it is run", |
| " FILE Send output to FILE", |
| " stdout Send output to stdout", |
| " stderr Send output to stderr", |
| " off Disable tracing", |
| " --expanded Expand query parameters", |
| #ifdef SQLITE_ENABLE_NORMALIZE |
| " --normalized Normal the SQL statements", |
| #endif |
| " --plain Show SQL as it is input", |
| " --stmt Trace statement execution (SQLITE_TRACE_STMT)", |
| " --profile Profile statements (SQLITE_TRACE_PROFILE)", |
| " --row Trace each row (SQLITE_TRACE_ROW)", |
| " --close Trace connection close (SQLITE_TRACE_CLOSE)", |
| #endif /* SQLITE_OMIT_TRACE */ |
| ".vfsinfo ?AUX? Information about the top-level VFS", |
| ".vfslist List all available VFSes", |
| ".vfsname ?AUX? Print the name of the VFS stack", |
| ".width NUM1 NUM2 ... Set column widths for \"column\" mode", |
| " Negative values right-justify", |
| }; |
| |
| /* |
| ** Output help text. |
| ** |
| ** zPattern describes the set of commands for which help text is provided. |
| ** If zPattern is NULL, then show all commands, but only give a one-line |
| ** description of each. |
| ** |
| ** Return the number of matches. |
| */ |
| static int showHelp(FILE *out, const char *zPattern){ |
| int i = 0; |
| int j = 0; |
| int n = 0; |
| char *zPat; |
| if( zPattern==0 |
| || zPattern[0]=='0' |
| || strcmp(zPattern,"-a")==0 |
| || strcmp(zPattern,"-all")==0 |
| ){ |
| /* Show all commands, but only one line per command */ |
| if( zPattern==0 ) zPattern = ""; |
| for(i=0; i<ArraySize(azHelp); i++){ |
| if( azHelp[i][0]=='.' || zPattern[0] ){ |
| utf8_printf(out, "%s\n", azHelp[i]); |
| n++; |
| } |
| } |
| }else{ |
| /* Look for commands that for which zPattern is an exact prefix */ |
| zPat = sqlite3_mprintf(".%s*", zPattern); |
| for(i=0; i<ArraySize(azHelp); i++){ |
| if( sqlite3_strglob(zPat, azHelp[i])==0 ){ |
| utf8_printf(out, "%s\n", azHelp[i]); |
| j = i+1; |
| n++; |
| } |
| } |
| sqlite3_free(zPat); |
| if( n ){ |
| if( n==1 ){ |
| /* when zPattern is a prefix of exactly one command, then include the |
| ** details of that command, which should begin at offset j */ |
| while( j<ArraySize(azHelp)-1 && azHelp[j][0]!='.' ){ |
| utf8_printf(out, "%s\n", azHelp[j]); |
| j++; |
| } |
| } |
| return n; |
| } |
| /* Look for commands that contain zPattern anywhere. Show the complete |
| ** text of all commands that match. */ |
| zPat = sqlite3_mprintf("%%%s%%", zPattern); |
| for(i=0; i<ArraySize(azHelp); i++){ |
| if( azHelp[i][0]=='.' ) j = i; |
| if( sqlite3_strlike(zPat, azHelp[i], 0)==0 ){ |
| utf8_printf(out, "%s\n", azHelp[j]); |
| while( j<ArraySize(azHelp)-1 && azHelp[j+1][0]!='.' ){ |
| j++; |
| utf8_printf(out, "%s\n", azHelp[j]); |
| } |
| i = j; |
| n++; |
| } |
| } |
| sqlite3_free(zPat); |
| } |
| return n; |
| } |
| |
| /* Forward reference */ |
| static int process_input(ShellState *p); |
| |
| /* |
| ** Read the content of file zName into memory obtained from sqlite3_malloc64() |
| ** and return a pointer to the buffer. The caller is responsible for freeing |
| ** the memory. |
| ** |
| ** If parameter pnByte is not NULL, (*pnByte) is set to the number of bytes |
| ** read. |
| ** |
| ** For convenience, a nul-terminator byte is always appended to the data read |
| ** from the file before the buffer is returned. This byte is not included in |
| ** the final value of (*pnByte), if applicable. |
| ** |
| ** NULL is returned if any error is encountered. The final value of *pnByte |
| ** is undefined in this case. |
| */ |
| static char *readFile(const char *zName, int *pnByte){ |
| FILE *in = fopen(zName, "rb"); |
| long nIn; |
| size_t nRead; |
| char *pBuf; |
| if( in==0 ) return 0; |
| fseek(in, 0, SEEK_END); |
| nIn = ftell(in); |
| rewind(in); |
| pBuf = sqlite3_malloc64( nIn+1 ); |
| if( pBuf==0 ){ fclose(in); return 0; } |
| nRead = fread(pBuf, nIn, 1, in); |
| fclose(in); |
| if( nRead!=1 ){ |
| sqlite3_free(pBuf); |
| return 0; |
| } |
| pBuf[nIn] = 0; |
| if( pnByte ) *pnByte = nIn; |
| return pBuf; |
| } |
| |
| #if defined(SQLITE_ENABLE_SESSION) |
| /* |
| ** Close a single OpenSession object and release all of its associated |
| ** resources. |
| */ |
| static void session_close(OpenSession *pSession){ |
| int i; |
| sqlite3session_delete(pSession->p); |
| sqlite3_free(pSession->zName); |
| for(i=0; i<pSession->nFilter; i++){ |
| sqlite3_free(pSession->azFilter[i]); |
| } |
| sqlite3_free(pSession->azFilter); |
| memset(pSession, 0, sizeof(OpenSession)); |
| } |
| #endif |
| |
| /* |
| ** Close all OpenSession objects and release all associated resources. |
| */ |
| #if defined(SQLITE_ENABLE_SESSION) |
| static void session_close_all(ShellState *p){ |
| int i; |
| for(i=0; i<p->nSession; i++){ |
| session_close(&p->aSession[i]); |
| } |
| p->nSession = 0; |
| } |
| #else |
| # define session_close_all(X) |
| #endif |
| |
| /* |
| ** Implementation of the xFilter function for an open session. Omit |
| ** any tables named by ".session filter" but let all other table through. |
| */ |
| #if defined(SQLITE_ENABLE_SESSION) |
| static int session_filter(void *pCtx, const char *zTab){ |
| OpenSession *pSession = (OpenSession*)pCtx; |
| int i; |
| for(i=0; i<pSession->nFilter; i++){ |
| if( sqlite3_strglob(pSession->azFilter[i], zTab)==0 ) return 0; |
| } |
| return 1; |
| } |
| #endif |
| |
| /* |
| ** Try to deduce the type of file for zName based on its content. Return |
| ** one of the SHELL_OPEN_* constants. |
| ** |
| ** If the file does not exist or is empty but its name looks like a ZIP |
| ** archive and the dfltZip flag is true, then assume it is a ZIP archive. |
| ** Otherwise, assume an ordinary database regardless of the filename if |
| ** the type cannot be determined from content. |
| */ |
| int deduceDatabaseType(const char *zName, int dfltZip){ |
| FILE *f = fopen(zName, "rb"); |
| size_t n; |
| int rc = SHELL_OPEN_UNSPEC; |
| char zBuf[100]; |
| if( f==0 ){ |
| if( dfltZip && sqlite3_strlike("%.zip",zName,0)==0 ){ |
| return SHELL_OPEN_ZIPFILE; |
| }else{ |
| return SHELL_OPEN_NORMAL; |
| } |
| } |
| n = fread(zBuf, 16, 1, f); |
| if( n==1 && memcmp(zBuf, "SQLite format 3", 16)==0 ){ |
| fclose(f); |
| return SHELL_OPEN_NORMAL; |
| } |
| fseek(f, -25, SEEK_END); |
| n = fread(zBuf, 25, 1, f); |
| if( n==1 && memcmp(zBuf, "Start-Of-SQLite3-", 17)==0 ){ |
| rc = SHELL_OPEN_APPENDVFS; |
| }else{ |
| fseek(f, -22, SEEK_END); |
| n = fread(zBuf, 22, 1, f); |
| if( n==1 && zBuf[0]==0x50 && zBuf[1]==0x4b && zBuf[2]==0x05 |
| && zBuf[3]==0x06 ){ |
| rc = SHELL_OPEN_ZIPFILE; |
| }else if( n==0 && dfltZip && sqlite3_strlike("%.zip",zName,0)==0 ){ |
| rc = SHELL_OPEN_ZIPFILE; |
| } |
| } |
| fclose(f); |
| return rc; |
| } |
| |
| #ifdef SQLITE_ENABLE_DESERIALIZE |
| /* |
| ** Reconstruct an in-memory database using the output from the "dbtotxt" |
| ** program. Read content from the file in p->zDbFilename. If p->zDbFilename |
| ** is 0, then read from standard input. |
| */ |
| static unsigned char *readHexDb(ShellState *p, int *pnData){ |
| unsigned char *a = 0; |
| int nLine; |
| int n = 0; |
| int pgsz = 0; |
| int iOffset = 0; |
| int j, k; |
| int rc; |
| FILE *in; |
| unsigned char x[16]; |
| char zLine[1000]; |
| if( p->zDbFilename ){ |
| in = fopen(p->zDbFilename, "r"); |
| if( in==0 ){ |
| utf8_printf(stderr, "cannot open \"%s\" for reading\n", p->zDbFilename); |
| return 0; |
| } |
| nLine = 0; |
| }else{ |
| in = p->in; |
| nLine = p->lineno; |
| } |
| *pnData = 0; |
| nLine++; |
| if( fgets(zLine, sizeof(zLine), in)==0 ) goto readHexDb_error; |
| rc = sscanf(zLine, "| size %d pagesize %d", &n, &pgsz); |
| if( rc!=2 ) goto readHexDb_error; |
| if( n<=0 ) goto readHexDb_error; |
| a = sqlite3_malloc( n ); |
| if( a==0 ){ |
| utf8_printf(stderr, "Out of memory!\n"); |
| goto readHexDb_error; |
| } |
| memset(a, 0, n); |
| if( pgsz<512 || pgsz>65536 || (pgsz & (pgsz-1))!=0 ){ |
| utf8_printf(stderr, "invalid pagesize\n"); |
| goto readHexDb_error; |
| } |
| for(nLine++; fgets(zLine, sizeof(zLine), in)!=0; nLine++){ |
| rc = sscanf(zLine, "| page %d offset %d", &j, &k); |
| if( rc==2 ){ |
| iOffset = k; |
| continue; |
| } |
| if( strncmp(zLine, "| end ", 6)==0 ){ |
| break; |
| } |
| rc = sscanf(zLine,"| %d: %hhx %hhx %hhx %hhx %hhx %hhx %hhx %hhx" |
| " %hhx %hhx %hhx %hhx %hhx %hhx %hhx %hhx", |
| &j, &x[0], &x[1], &x[2], &x[3], &x[4], &x[5], &x[6], &x[7], |
| &x[8], &x[9], &x[10], &x[11], &x[12], &x[13], &x[14], &x[15]); |
| if( rc==17 ){ |
| k = iOffset+j; |
| if( k+16<=n ){ |
| memcpy(a+k, x, 16); |
| } |
| } |
| } |
| *pnData = n; |
| if( in!=p->in ){ |
| fclose(in); |
| }else{ |
| p->lineno = nLine; |
| } |
| return a; |
| |
| readHexDb_error: |
| if( in!=stdin ){ |
| fclose(in); |
| }else{ |
| while( fgets(zLine, sizeof(zLine), p->in)!=0 ){ |
| nLine++; |
| if(strncmp(zLine, "| end ", 6)==0 ) break; |
| } |
| p->lineno = nLine; |
| } |
| sqlite3_free(a); |
| utf8_printf(stderr,"Error on line %d of --hexdb input\n", nLine); |
| return 0; |
| } |
| #endif /* SQLITE_ENABLE_DESERIALIZE */ |
| |
| /* Flags for open_db(). |
| ** |
| ** The default behavior of open_db() is to exit(1) if the database fails to |
| ** open. The OPEN_DB_KEEPALIVE flag changes that so that it prints an error |
| ** but still returns without calling exit. |
| ** |
| ** The OPEN_DB_ZIPFILE flag causes open_db() to prefer to open files as a |
| ** ZIP archive if the file does not exist or is empty and its name matches |
| ** the *.zip pattern. |
| */ |
| #define OPEN_DB_KEEPALIVE 0x001 /* Return after error if true */ |
| #define OPEN_DB_ZIPFILE 0x002 /* Open as ZIP if name matches *.zip */ |
| |
| /* |
| ** Make sure the database is open. If it is not, then open it. If |
| ** the database fails to open, print an error message and exit. |
| */ |
| static void open_db(ShellState *p, int openFlags){ |
| if( p->db==0 ){ |
| if( p->openMode==SHELL_OPEN_UNSPEC ){ |
| if( p->zDbFilename==0 || p->zDbFilename[0]==0 ){ |
| p->openMode = SHELL_OPEN_NORMAL; |
| }else{ |
| p->openMode = (u8)deduceDatabaseType(p->zDbFilename, |
| (openFlags & OPEN_DB_ZIPFILE)!=0); |
| } |
| } |
| switch( p->openMode ){ |
| case SHELL_OPEN_APPENDVFS: { |
| sqlite3_open_v2(p->zDbFilename, &p->db, |
| SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE, "apndvfs"); |
| break; |
| } |
| case SHELL_OPEN_HEXDB: |
| case SHELL_OPEN_DESERIALIZE: { |
| sqlite3_open(0, &p->db); |
| break; |
| } |
| case SHELL_OPEN_ZIPFILE: { |
| sqlite3_open(":memory:", &p->db); |
| break; |
| } |
| case SHELL_OPEN_READONLY: { |
| sqlite3_open_v2(p->zDbFilename, &p->db, SQLITE_OPEN_READONLY, 0); |
| break; |
| } |
| case SHELL_OPEN_UNSPEC: |
| case SHELL_OPEN_NORMAL: { |
| sqlite3_open(p->zDbFilename, &p->db); |
| break; |
| } |
| } |
| globalDb = p->db; |
| if( p->db==0 || SQLITE_OK!=sqlite3_errcode(p->db) ){ |
| utf8_printf(stderr,"Error: unable to open database \"%s\": %s\n", |
| p->zDbFilename, sqlite3_errmsg(p->db)); |
| if( openFlags & OPEN_DB_KEEPALIVE ){ |
| sqlite3_open(":memory:", &p->db); |
| return; |
| } |
| exit(1); |
| } |
| #ifndef SQLITE_OMIT_LOAD_EXTENSION |
| sqlite3_enable_load_extension(p->db, 1); |
| #endif |
| sqlite3_fileio_init(p->db, 0, 0); |
| sqlite3_shathree_init(p->db, 0, 0); |
| sqlite3_completion_init(p->db, 0, 0); |
| #ifdef SQLITE_HAVE_ZLIB |
| sqlite3_zipfile_init(p->db, 0, 0); |
| sqlite3_sqlar_init(p->db, 0, 0); |
| #endif |
| sqlite3_create_function(p->db, "shell_add_schema", 3, SQLITE_UTF8, 0, |
| shellAddSchemaName, 0, 0); |
| sqlite3_create_function(p->db, "shell_module_schema", 1, SQLITE_UTF8, 0, |
| shellModuleSchema, 0, 0); |
| sqlite3_create_function(p->db, "shell_putsnl", 1, SQLITE_UTF8, p, |
| shellPutsFunc, 0, 0); |
| #ifndef SQLITE_NOHAVE_SYSTEM |
| sqlite3_create_function(p->db, "edit", 1, SQLITE_UTF8, 0, |
| editFunc, 0, 0); |
| sqlite3_create_function(p->db, "edit", 2, SQLITE_UTF8, 0, |
| editFunc, 0, 0); |
| #endif |
| |
| // Begin Android Add |
| #ifndef NO_ANDROID_FUNCS |
| AIcu_initializeIcuOrDie(); |
| int err = register_localized_collators(p->db, "en_US", 0); |
| if (err != SQLITE_OK) { |
| fprintf(stderr, "register_localized_collators() failed\n"); |
| exit(1); |
| } |
| err = register_android_functions(p->db, 0); |
| if (err != SQLITE_OK) { |
| fprintf(stderr, "register_android_functions() failed\n"); |
| exit(1); |
| } |
| #endif |
| // End Android Add |
| |
| if( p->openMode==SHELL_OPEN_ZIPFILE ){ |
| char *zSql = sqlite3_mprintf( |
| "CREATE VIRTUAL TABLE zip USING zipfile(%Q);", p->zDbFilename); |
| sqlite3_exec(p->db, zSql, 0, 0, 0); |
| sqlite3_free(zSql); |
| } |
| #ifdef SQLITE_ENABLE_DESERIALIZE |
| else |
| if( p->openMode==SHELL_OPEN_DESERIALIZE || p->openMode==SHELL_OPEN_HEXDB ){ |
| int rc; |
| int nData = 0; |
| unsigned char *aData; |
| if( p->openMode==SHELL_OPEN_DESERIALIZE ){ |
| aData = (unsigned char*)readFile(p->zDbFilename, &nData); |
| }else{ |
| aData = readHexDb(p, &nData); |
| if( aData==0 ){ |
| utf8_printf(stderr, "Error in hexdb input\n"); |
| return; |
| } |
| } |
| rc = sqlite3_deserialize(p->db, "main", aData, nData, nData, |
| SQLITE_DESERIALIZE_RESIZEABLE | |
| SQLITE_DESERIALIZE_FREEONCLOSE); |
| if( rc ){ |
| utf8_printf(stderr, "Error: sqlite3_deserialize() returns %d\n", rc); |
| } |
| if( p->szMax>0 ){ |
| sqlite3_file_control(p->db, "main", SQLITE_FCNTL_SIZE_LIMIT, &p->szMax); |
| } |
| } |
| #endif |
| } |
| } |
| |
| /* |
| ** Attempt to close the databaes connection. Report errors. |
| */ |
| void close_db(sqlite3 *db){ |
| int rc = sqlite3_close(db); |
| if( rc ){ |
| utf8_printf(stderr, "Error: sqlite3_close() returns %d: %s\n", |
| rc, sqlite3_errmsg(db)); |
| } |
| } |
| |
| #if HAVE_READLINE || HAVE_EDITLINE |
| /* |
| ** Readline completion callbacks |
| */ |
| static char *readline_completion_generator(const char *text, int state){ |
| static sqlite3_stmt *pStmt = 0; |
| char *zRet; |
| if( state==0 ){ |
| char *zSql; |
| sqlite3_finalize(pStmt); |
| zSql = sqlite3_mprintf("SELECT DISTINCT candidate COLLATE nocase" |
| " FROM completion(%Q) ORDER BY 1", text); |
| sqlite3_prepare_v2(globalDb, zSql, -1, &pStmt, 0); |
| sqlite3_free(zSql); |
| } |
| if( sqlite3_step(pStmt)==SQLITE_ROW ){ |
| zRet = strdup((const char*)sqlite3_column_text(pStmt, 0)); |
| }else{ |
| sqlite3_finalize(pStmt); |
| pStmt = 0; |
| zRet = 0; |
| } |
| return zRet; |
| } |
| static char **readline_completion(const char *zText, int iStart, int iEnd){ |
| rl_attempted_completion_over = 1; |
| return rl_completion_matches(zText, readline_completion_generator); |
| } |
| |
| #elif HAVE_LINENOISE |
| /* |
| ** Linenoise completion callback |
| */ |
| static void linenoise_completion(const char *zLine, linenoiseCompletions *lc){ |
| int nLine = strlen30(zLine); |
| int i, iStart; |
| sqlite3_stmt *pStmt = 0; |
| char *zSql; |
| char zBuf[1000]; |
| |
| if( nLine>sizeof(zBuf)-30 ) return; |
| if( zLine[0]=='.' || zLine[0]=='#') return; |
| for(i=nLine-1; i>=0 && (isalnum(zLine[i]) || zLine[i]=='_'); i--){} |
| if( i==nLine-1 ) return; |
| iStart = i+1; |
| memcpy(zBuf, zLine, iStart); |
| zSql = sqlite3_mprintf("SELECT DISTINCT candidate COLLATE nocase" |
| " FROM completion(%Q,%Q) ORDER BY 1", |
| &zLine[iStart], zLine); |
| sqlite3_prepare_v2(globalDb, zSql, -1, &pStmt, 0); |
| sqlite3_free(zSql); |
| sqlite3_exec(globalDb, "PRAGMA page_count", 0, 0, 0); /* Load the schema */ |
| while( sqlite3_step(pStmt)==SQLITE_ROW ){ |
| const char *zCompletion = (const char*)sqlite3_column_text(pStmt, 0); |
| int nCompletion = sqlite3_column_bytes(pStmt, 0); |
| if( iStart+nCompletion < sizeof(zBuf)-1 ){ |
| memcpy(zBuf+iStart, zCompletion, nCompletion+1); |
| linenoiseAddCompletion(lc, zBuf); |
| } |
| } |
| sqlite3_finalize(pStmt); |
| } |
| #endif |
| |
| /* |
| ** Do C-language style dequoting. |
| ** |
| ** \a -> alarm |
| ** \b -> backspace |
| ** \t -> tab |
| ** \n -> newline |
| ** \v -> vertical tab |
| ** \f -> form feed |
| ** \r -> carriage return |
| ** \s -> space |
| ** \" -> " |
| ** \' -> ' |
| ** \\ -> backslash |
| ** \NNN -> ascii character NNN in octal |
| */ |
| static void resolve_backslashes(char *z){ |
| int i, j; |
| char c; |
| while( *z && *z!='\\' ) z++; |
| for(i=j=0; (c = z[i])!=0; i++, j++){ |
| if( c=='\\' && z[i+1]!=0 ){ |
| c = z[++i]; |
| if( c=='a' ){ |
| c = '\a'; |
| }else if( c=='b' ){ |
| c = '\b'; |
| }else if( c=='t' ){ |
| c = '\t'; |
| }else if( c=='n' ){ |
| c = '\n'; |
| }else if( c=='v' ){ |
| c = '\v'; |
| }else if( c=='f' ){ |
| c = '\f'; |
| }else if( c=='r' ){ |
| c = '\r'; |
| }else if( c=='"' ){ |
| c = '"'; |
| }else if( c=='\'' ){ |
| c = '\''; |
| }else if( c=='\\' ){ |
| c = '\\'; |
| }else if( c>='0' && c<='7' ){ |
| c -= '0'; |
| if( z[i+1]>='0' && z[i+1]<='7' ){ |
| i++; |
| c = (c<<3) + z[i] - '0'; |
| if( z[i+1]>='0' && z[i+1]<='7' ){ |
| i++; |
| c = (c<<3) + z[i] - '0'; |
| } |
| } |
| } |
| } |
| z[j] = c; |
| } |
| if( j<i ) z[j] = 0; |
| } |
| |
| /* |
| ** Interpret zArg as either an integer or a boolean value. Return 1 or 0 |
| ** for TRUE and FALSE. Return the integer value if appropriate. |
| */ |
| static int booleanValue(const char *zArg){ |
| int i; |
| if( zArg[0]=='0' && zArg[1]=='x' ){ |
| for(i=2; hexDigitValue(zArg[i])>=0; i++){} |
| }else{ |
| for(i=0; zArg[i]>='0' && zArg[i]<='9'; i++){} |
| } |
| if( i>0 && zArg[i]==0 ) return (int)(integerValue(zArg) & 0xffffffff); |
| if( sqlite3_stricmp(zArg, "on")==0 || sqlite3_stricmp(zArg,"yes")==0 ){ |
| return 1; |
| } |
| if( sqlite3_stricmp(zArg, "off")==0 || sqlite3_stricmp(zArg,"no")==0 ){ |
| return 0; |
| } |
| utf8_printf(stderr, "ERROR: Not a boolean value: \"%s\". Assuming \"no\".\n", |
| zArg); |
| return 0; |
| } |
| |
| /* |
| ** Set or clear a shell flag according to a boolean value. |
| */ |
| static void setOrClearFlag(ShellState *p, unsigned mFlag, const char *zArg){ |
| if( booleanValue(zArg) ){ |
| ShellSetFlag(p, mFlag); |
| }else{ |
| ShellClearFlag(p, mFlag); |
| } |
| } |
| |
| /* |
| ** Close an output file, assuming it is not stderr or stdout |
| */ |
| static void output_file_close(FILE *f){ |
| if( f && f!=stdout && f!=stderr ) fclose(f); |
| } |
| |
| /* |
| ** Try to open an output file. The names "stdout" and "stderr" are |
| ** recognized and do the right thing. NULL is returned if the output |
| ** filename is "off". |
| */ |
| static FILE *output_file_open(const char *zFile, int bTextMode){ |
| FILE *f; |
| if( strcmp(zFile,"stdout")==0 ){ |
| f = stdout; |
| }else if( strcmp(zFile, "stderr")==0 ){ |
| f = stderr; |
| }else if( strcmp(zFile, "off")==0 ){ |
| f = 0; |
| }else{ |
| f = fopen(zFile, bTextMode ? "w" : "wb"); |
| if( f==0 ){ |
| utf8_printf(stderr, "Error: cannot open \"%s\"\n", zFile); |
| } |
| } |
| return f; |
| } |
| |
| #ifndef SQLITE_OMIT_TRACE |
| /* |
| ** A routine for handling output from sqlite3_trace(). |
| */ |
| static int sql_trace_callback( |
| unsigned mType, /* The trace type */ |
| void *pArg, /* The ShellState pointer */ |
| void *pP, /* Usually a pointer to sqlite_stmt */ |
| void *pX /* Auxiliary output */ |
| ){ |
| ShellState *p = (ShellState*)pArg; |
| sqlite3_stmt *pStmt; |
| const char *zSql; |
| int nSql; |
| if( p->traceOut==0 ) return 0; |
| if( mType==SQLITE_TRACE_CLOSE ){ |
| utf8_printf(p->traceOut, "-- closing database connection\n"); |
| return 0; |
| } |
| if( mType!=SQLITE_TRACE_ROW && ((const char*)pX)[0]=='-' ){ |
| zSql = (const char*)pX; |
| }else{ |
| pStmt = (sqlite3_stmt*)pP; |
| switch( p->eTraceType ){ |
| case SHELL_TRACE_EXPANDED: { |
| zSql = sqlite3_expanded_sql(pStmt); |
| break; |
| } |
| #ifdef SQLITE_ENABLE_NORMALIZE |
| case SHELL_TRACE_NORMALIZED: { |
| zSql = sqlite3_normalized_sql(pStmt); |
| break; |
| } |
| #endif |
| default: { |
| zSql = sqlite3_sql(pStmt); |
| break; |
| } |
| } |
| } |
| if( zSql==0 ) return 0; |
| nSql = strlen30(zSql); |
| while( nSql>0 && zSql[nSql-1]==';' ){ nSql--; } |
| switch( mType ){ |
| case SQLITE_TRACE_ROW: |
| case SQLITE_TRACE_STMT: { |
| utf8_printf(p->traceOut, "%.*s;\n", nSql, zSql); |
| break; |
| } |
| case SQLITE_TRACE_PROFILE: { |
| sqlite3_int64 nNanosec = *(sqlite3_int64*)pX; |
| utf8_printf(p->traceOut, "%.*s; -- %lld ns\n", nSql, zSql, nNanosec); |
| break; |
| } |
| } |
| return 0; |
| } |
| #endif |
| |
| /* |
| ** A no-op routine that runs with the ".breakpoint" doc-command. This is |
| ** a useful spot to set a debugger breakpoint. |
| */ |
| static void test_breakpoint(void){ |
| static int nCall = 0; |
| nCall++; |
| } |
| |
| /* |
| ** An object used to read a CSV and other files for import. |
| */ |
| typedef struct ImportCtx ImportCtx; |
| struct ImportCtx { |
| const char *zFile; /* Name of the input file */ |
| FILE *in; /* Read the CSV text from this input stream */ |
| char *z; /* Accumulated text for a field */ |
| int n; /* Number of bytes in z */ |
| int nAlloc; /* Space allocated for z[] */ |
| int nLine; /* Current line number */ |
| int bNotFirst; /* True if one or more bytes already read */ |
| int cTerm; /* Character that terminated the most recent field */ |
| int cColSep; /* The column separator character. (Usually ",") */ |
| int cRowSep; /* The row separator character. (Usually "\n") */ |
| }; |
| |
| /* Append a single byte to z[] */ |
| static void import_append_char(ImportCtx *p, int c){ |
| if( p->n+1>=p->nAlloc ){ |
| p->nAlloc += p->nAlloc + 100; |
| p->z = sqlite3_realloc64(p->z, p->nAlloc); |
| if( p->z==0 ) shell_out_of_memory(); |
| } |
| p->z[p->n++] = (char)c; |
| } |
| |
| /* Read a single field of CSV text. Compatible with rfc4180 and extended |
| ** with the option of having a separator other than ",". |
| ** |
| ** + Input comes from p->in. |
| ** + Store results in p->z of length p->n. Space to hold p->z comes |
| ** from sqlite3_malloc64(). |
| ** + Use p->cSep as the column separator. The default is ",". |
| ** + Use p->rSep as the row separator. The default is "\n". |
| ** + Keep track of the line number in p->nLine. |
| ** + Store the character that terminates the field in p->cTerm. Store |
| ** EOF on end-of-file. |
| ** + Report syntax errors on stderr |
| */ |
| static char *SQLITE_CDECL csv_read_one_field(ImportCtx *p){ |
| int c; |
| int cSep = p->cColSep; |
| int rSep = p->cRowSep; |
| p->n = 0; |
| c = fgetc(p->in); |
| if( c==EOF || seenInterrupt ){ |
| p->cTerm = EOF; |
| return 0; |
| } |
| if( c=='"' ){ |
| int pc, ppc; |
| int startLine = p->nLine; |
| int cQuote = c; |
| pc = ppc = 0; |
| while( 1 ){ |
| c = fgetc(p->in); |
| if( c==rSep ) p->nLine++; |
| if( c==cQuote ){ |
| if( pc==cQuote ){ |
| pc = 0; |
| continue; |
| } |
| } |
| if( (c==cSep && pc==cQuote) |
| || (c==rSep && pc==cQuote) |
| || (c==rSep && pc=='\r' && ppc==cQuote) |
| || (c==EOF && pc==cQuote) |
| ){ |
| do{ p->n--; }while( p->z[p->n]!=cQuote ); |
| p->cTerm = c; |
| break; |
| } |
| if( pc==cQuote && c!='\r' ){ |
| utf8_printf(stderr, "%s:%d: unescaped %c character\n", |
| p->zFile, p->nLine, cQuote); |
| } |
| if( c==EOF ){ |
| utf8_printf(stderr, "%s:%d: unterminated %c-quoted field\n", |
| p->zFile, startLine, cQuote); |
| p->cTerm = c; |
| break; |
| } |
| import_append_char(p, c); |
| ppc = pc; |
| pc = c; |
| } |
| }else{ |
| /* If this is the first field being parsed and it begins with the |
| ** UTF-8 BOM (0xEF BB BF) then skip the BOM */ |
| if( (c&0xff)==0xef && p->bNotFirst==0 ){ |
| import_append_char(p, c); |
| c = fgetc(p->in); |
| if( (c&0xff)==0xbb ){ |
| import_append_char(p, c); |
| c = fgetc(p->in); |
| if( (c&0xff)==0xbf ){ |
| p->bNotFirst = 1; |
| p->n = 0; |
| return csv_read_one_field(p); |
| } |
| } |
| } |
| while( c!=EOF && c!=cSep && c!=rSep ){ |
| import_append_char(p, c); |
| c = fgetc(p->in); |
| } |
| if( c==rSep ){ |
| p->nLine++; |
| if( p->n>0 && p->z[p->n-1]=='\r' ) p->n--; |
| } |
| p->cTerm = c; |
| } |
| if( p->z ) p->z[p->n] = 0; |
| p->bNotFirst = 1; |
| return p->z; |
| } |
| |
| /* Read a single field of ASCII delimited text. |
| ** |
| ** + Input comes from p->in. |
| ** + Store results in p->z of length p->n. Space to hold p->z comes |
| ** from sqlite3_malloc64(). |
| ** + Use p->cSep as the column separator. The default is "\x1F". |
| ** + Use p->rSep as the row separator. The default is "\x1E". |
| ** + Keep track of the row number in p->nLine. |
| ** + Store the character that terminates the field in p->cTerm. Store |
| ** EOF on end-of-file. |
| ** + Report syntax errors on stderr |
| */ |
| static char *SQLITE_CDECL ascii_read_one_field(ImportCtx *p){ |
| int c; |
| int cSep = p->cColSep; |
| int rSep = p->cRowSep; |
| p->n = 0; |
| c = fgetc(p->in); |
| if( c==EOF || seenInterrupt ){ |
| p->cTerm = EOF; |
| return 0; |
| } |
| while( c!=EOF && c!=cSep && c!=rSep ){ |
| import_append_char(p, c); |
| c = fgetc(p->in); |
| } |
| if( c==rSep ){ |
| p->nLine++; |
| } |
| p->cTerm = c; |
| if( p->z ) p->z[p->n] = 0; |
| return p->z; |
| } |
| |
| /* |
| ** Try to transfer data for table zTable. If an error is seen while |
| ** moving forward, try to go backwards. The backwards movement won't |
| ** work for WITHOUT ROWID tables. |
| */ |
| static void tryToCloneData( |
| ShellState *p, |
| sqlite3 *newDb, |
| const char *zTable |
| ){ |
| sqlite3_stmt *pQuery = 0; |
| sqlite3_stmt *pInsert = 0; |
| char *zQuery = 0; |
| char *zInsert = 0; |
| int rc; |
| int i, j, n; |
| int nTable = strlen30(zTable); |
| int k = 0; |
| int cnt = 0; |
| const int spinRate = 10000; |
| |
| zQuery = sqlite3_mprintf("SELECT * FROM \"%w\"", zTable); |
| rc = sqlite3_prepare_v2(p->db, zQuery, -1, &pQuery, 0); |
| if( rc ){ |
| utf8_printf(stderr, "Error %d: %s on [%s]\n", |
| sqlite3_extended_errcode(p->db), sqlite3_errmsg(p->db), |
| zQuery); |
| goto end_data_xfer; |
| } |
| n = sqlite3_column_count(pQuery); |
| zInsert = sqlite3_malloc64(200 + nTable + n*3); |
| if( zInsert==0 ) shell_out_of_memory(); |
| sqlite3_snprintf(200+nTable,zInsert, |
| "INSERT OR IGNORE INTO \"%s\" VALUES(?", zTable); |
| i = strlen30(zInsert); |
| for(j=1; j<n; j++){ |
| memcpy(zInsert+i, ",?", 2); |
| i += 2; |
| } |
| memcpy(zInsert+i, ");", 3); |
| rc = sqlite3_prepare_v2(newDb, zInsert, -1, &pInsert, 0); |
| if( rc ){ |
| utf8_printf(stderr, "Error %d: %s on [%s]\n", |
| sqlite3_extended_errcode(newDb), sqlite3_errmsg(newDb), |
| zQuery); |
| goto end_data_xfer; |
| } |
| for(k=0; k<2; k++){ |
| while( (rc = sqlite3_step(pQuery))==SQLITE_ROW ){ |
| for(i=0; i<n; i++){ |
| switch( sqlite3_column_type(pQuery, i) ){ |
| case SQLITE_NULL: { |
| sqlite3_bind_null(pInsert, i+1); |
| break; |
| } |
| case SQLITE_INTEGER: { |
| sqlite3_bind_int64(pInsert, i+1, sqlite3_column_int64(pQuery,i)); |
| break; |
| } |
| case SQLITE_FLOAT: { |
| sqlite3_bind_double(pInsert, i+1, sqlite3_column_double(pQuery,i)); |
| break; |
| } |
| case SQLITE_TEXT: { |
| sqlite3_bind_text(pInsert, i+1, |
| (const char*)sqlite3_column_text(pQuery,i), |
| -1, SQLITE_STATIC); |
| break; |
| } |
| case SQLITE_BLOB: { |
| sqlite3_bind_blob(pInsert, i+1, sqlite3_column_blob(pQuery,i), |
| sqlite3_column_bytes(pQuery,i), |
| SQLITE_STATIC); |
| break; |
| } |
| } |
| } /* End for */ |
| rc = sqlite3_step(pInsert); |
| if( rc!=SQLITE_OK && rc!=SQLITE_ROW && rc!=SQLITE_DONE ){ |
| utf8_printf(stderr, "Error %d: %s\n", sqlite3_extended_errcode(newDb), |
| sqlite3_errmsg(newDb)); |
| } |
| sqlite3_reset(pInsert); |
| cnt++; |
| if( (cnt%spinRate)==0 ){ |
| printf("%c\b", "|/-\\"[(cnt/spinRate)%4]); |
| fflush(stdout); |
| } |
| } /* End while */ |
| if( rc==SQLITE_DONE ) break; |
| sqlite3_finalize(pQuery); |
| sqlite3_free(zQuery); |
| zQuery = sqlite3_mprintf("SELECT * FROM \"%w\" ORDER BY rowid DESC;", |
| zTable); |
| rc = sqlite3_prepare_v2(p->db, zQuery, -1, &pQuery, 0); |
| if( rc ){ |
| utf8_printf(stderr, "Warning: cannot step \"%s\" backwards", zTable); |
| break; |
| } |
| } /* End for(k=0...) */ |
| |
| end_data_xfer: |
| sqlite3_finalize(pQuery); |
| sqlite3_finalize(pInsert); |
| sqlite3_free(zQuery); |
| sqlite3_free(zInsert); |
| } |
| |
| |
| /* |
| ** Try to transfer all rows of the schema that match zWhere. For |
| ** each row, invoke xForEach() on the object defined by that row. |
| ** If an error is encountered while moving forward through the |
| ** sqlite_master table, try again moving backwards. |
| */ |
| static void tryToCloneSchema( |
| ShellState *p, |
| sqlite3 *newDb, |
| const char *zWhere, |
| void (*xForEach)(ShellState*,sqlite3*,const char*) |
| ){ |
| sqlite3_stmt *pQuery = 0; |
| char *zQuery = 0; |
| int rc; |
| const unsigned char *zName; |
| const unsigned char *zSql; |
| char *zErrMsg = 0; |
| |
| zQuery = sqlite3_mprintf("SELECT name, sql FROM sqlite_master" |
| " WHERE %s", zWhere); |
| rc = sqlite3_prepare_v2(p->db, zQuery, -1, &pQuery, 0); |
| if( rc ){ |
| utf8_printf(stderr, "Error: (%d) %s on [%s]\n", |
| sqlite3_extended_errcode(p->db), sqlite3_errmsg(p->db), |
| zQuery); |
| goto end_schema_xfer; |
| } |
| while( (rc = sqlite3_step(pQuery))==SQLITE_ROW ){ |
| zName = sqlite3_column_text(pQuery, 0); |
| zSql = sqlite3_column_text(pQuery, 1); |
| printf("%s... ", zName); fflush(stdout); |
| sqlite3_exec(newDb, (const char*)zSql, 0, 0, &zErrMsg); |
| if( zErrMsg ){ |
| utf8_printf(stderr, "Error: %s\nSQL: [%s]\n", zErrMsg, zSql); |
| sqlite3_free(zErrMsg); |
| zErrMsg = 0; |
| } |
| if( xForEach ){ |
| xForEach(p, newDb, (const char*)zName); |
| } |
| printf("done\n"); |
| } |
| if( rc!=SQLITE_DONE ){ |
| sqlite3_finalize(pQuery); |
| sqlite3_free(zQuery); |
| zQuery = sqlite3_mprintf("SELECT name, sql FROM sqlite_master" |
| " WHERE %s ORDER BY rowid DESC", zWhere); |
| rc = sqlite3_prepare_v2(p->db, zQuery, -1, &pQuery, 0); |
| if( rc ){ |
| utf8_printf(stderr, "Error: (%d) %s on [%s]\n", |
| sqlite3_extended_errcode(p->db), sqlite3_errmsg(p->db), |
| zQuery); |
| goto end_schema_xfer; |
| } |
| while( (rc = sqlite3_step(pQuery))==SQLITE_ROW ){ |
| zName = sqlite3_column_text(pQuery, 0); |
| zSql = sqlite3_column_text(pQuery, 1); |
| printf("%s... ", zName); fflush(stdout); |
| sqlite3_exec(newDb, (const char*)zSql, 0, 0, &zErrMsg); |
| if( zErrMsg ){ |
| utf8_printf(stderr, "Error: %s\nSQL: [%s]\n", zErrMsg, zSql); |
| sqlite3_free(zErrMsg); |
| zErrMsg = 0; |
| } |
| if( xForEach ){ |
| xForEach(p, newDb, (const char*)zName); |
| } |
| printf("done\n"); |
| } |
| } |
| end_schema_xfer: |
| sqlite3_finalize(pQuery); |
| sqlite3_free(zQuery); |
| } |
| |
| /* |
| ** Open a new database file named "zNewDb". Try to recover as much information |
| ** as possible out of the main database (which might be corrupt) and write it |
| ** into zNewDb. |
| */ |
| static void tryToClone(ShellState *p, const char *zNewDb){ |
| int rc; |
| sqlite3 *newDb = 0; |
| if( access(zNewDb,0)==0 ){ |
| utf8_printf(stderr, "File \"%s\" already exists.\n", zNewDb); |
| return; |
| } |
| rc = sqlite3_open(zNewDb, &newDb); |
| if( rc ){ |
| utf8_printf(stderr, "Cannot create output database: %s\n", |
| sqlite3_errmsg(newDb)); |
| }else{ |
| sqlite3_exec(p->db, "PRAGMA writable_schema=ON;", 0, 0, 0); |
| sqlite3_exec(newDb, "BEGIN EXCLUSIVE;", 0, 0, 0); |
| tryToCloneSchema(p, newDb, "type='table'", tryToCloneData); |
| tryToCloneSchema(p, newDb, "type!='table'", 0); |
| sqlite3_exec(newDb, "COMMIT;", 0, 0, 0); |
| sqlite3_exec(p->db, "PRAGMA writable_schema=OFF;", 0, 0, 0); |
| } |
| close_db(newDb); |
| } |
| |
| /* |
| ** Change the output file back to stdout. |
| ** |
| ** If the p->doXdgOpen flag is set, that means the output was being |
| ** redirected to a temporary file named by p->zTempFile. In that case, |
| ** launch start/open/xdg-open on that temporary file. |
| */ |
| static void output_reset(ShellState *p){ |
| if( p->outfile[0]=='|' ){ |
| #ifndef SQLITE_OMIT_POPEN |
| pclose(p->out); |
| #endif |
| }else{ |
| output_file_close(p->out); |
| #ifndef SQLITE_NOHAVE_SYSTEM |
| if( p->doXdgOpen ){ |
| const char *zXdgOpenCmd = |
| #if defined(_WIN32) |
| "start"; |
| #elif defined(__APPLE__) |
| "open"; |
| #else |
| "xdg-open"; |
| #endif |
| char *zCmd; |
| zCmd = sqlite3_mprintf("%s %s", zXdgOpenCmd, p->zTempFile); |
| if( system(zCmd) ){ |
| utf8_printf(stderr, "Failed: [%s]\n", zCmd); |
| } |
| sqlite3_free(zCmd); |
| outputModePop(p); |
| p->doXdgOpen = 0; |
| } |
| #endif /* !defined(SQLITE_NOHAVE_SYSTEM) */ |
| } |
| p->outfile[0] = 0; |
| p->out = stdout; |
| } |
| |
| /* |
| ** Run an SQL command and return the single integer result. |
| */ |
| static int db_int(ShellState *p, const char *zSql){ |
| sqlite3_stmt *pStmt; |
| int res = 0; |
| sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0); |
| if( pStmt && sqlite3_step(pStmt)==SQLITE_ROW ){ |
| res = sqlite3_column_int(pStmt,0); |
| } |
| sqlite3_finalize(pStmt); |
| return res; |
| } |
| |
| /* |
| ** Convert a 2-byte or 4-byte big-endian integer into a native integer |
| */ |
| static unsigned int get2byteInt(unsigned char *a){ |
| return (a[0]<<8) + a[1]; |
| } |
| static unsigned int get4byteInt(unsigned char *a){ |
| return (a[0]<<24) + (a[1]<<16) + (a[2]<<8) + a[3]; |
| } |
| |
| /* |
| ** Implementation of the ".info" command. |
| ** |
| ** Return 1 on error, 2 to exit, and 0 otherwise. |
| */ |
| static int shell_dbinfo_command(ShellState *p, int nArg, char **azArg){ |
| static const struct { const char *zName; int ofst; } aField[] = { |
| { "file change counter:", 24 }, |
| { "database page count:", 28 }, |
| { "freelist page count:", 36 }, |
| { "schema cookie:", 40 }, |
| { "schema format:", 44 }, |
| { "default cache size:", 48 }, |
| { "autovacuum top root:", 52 }, |
| { "incremental vacuum:", 64 }, |
| { "text encoding:", 56 }, |
| { "user version:", 60 }, |
| { "application id:", 68 }, |
| { "software version:", 96 }, |
| }; |
| static const struct { const char *zName; const char *zSql; } aQuery[] = { |
| { "number of tables:", |
| "SELECT count(*) FROM %s WHERE type='table'" }, |
| { "number of indexes:", |
| "SELECT count(*) FROM %s WHERE type='index'" }, |
| { "number of triggers:", |
| "SELECT count(*) FROM %s WHERE type='trigger'" }, |
| { "number of views:", |
| "SELECT count(*) FROM %s WHERE type='view'" }, |
| { "schema size:", |
| "SELECT total(length(sql)) FROM %s" }, |
| }; |
| int i, rc; |
| unsigned iDataVersion; |
| char *zSchemaTab; |
| char *zDb = nArg>=2 ? azArg[1] : "main"; |
| sqlite3_stmt *pStmt = 0; |
| unsigned char aHdr[100]; |
| open_db(p, 0); |
| if( p->db==0 ) return 1; |
| rc = sqlite3_prepare_v2(p->db, |
| "SELECT data FROM sqlite_dbpage(?1) WHERE pgno=1", |
| -1, &pStmt, 0); |
| if( rc ){ |
| if( !sqlite3_compileoption_used("ENABLE_DBPAGE_VTAB") ){ |
| utf8_printf(stderr, "the \".dbinfo\" command requires the " |
| "-DSQLITE_ENABLE_DBPAGE_VTAB compile-time options\n"); |
| }else{ |
| utf8_printf(stderr, "error: %s\n", sqlite3_errmsg(p->db)); |
| } |
| sqlite3_finalize(pStmt); |
| return 1; |
| } |
| sqlite3_bind_text(pStmt, 1, zDb, -1, SQLITE_STATIC); |
| if( sqlite3_step(pStmt)==SQLITE_ROW |
| && sqlite3_column_bytes(pStmt,0)>100 |
| ){ |
| memcpy(aHdr, sqlite3_column_blob(pStmt,0), 100); |
| sqlite3_finalize(pStmt); |
| }else{ |
| raw_printf(stderr, "unable to read database header\n"); |
| sqlite3_finalize(pStmt); |
| return 1; |
| } |
| i = get2byteInt(aHdr+16); |
| if( i==1 ) i = 65536; |
| utf8_printf(p->out, "%-20s %d\n", "database page size:", i); |
| utf8_printf(p->out, "%-20s %d\n", "write format:", aHdr[18]); |
| utf8_printf(p->out, "%-20s %d\n", "read format:", aHdr[19]); |
| utf8_printf(p->out, "%-20s %d\n", "reserved bytes:", aHdr[20]); |
| for(i=0; i<ArraySize(aField); i++){ |
| int ofst = aField[i].ofst; |
| unsigned int val = get4byteInt(aHdr + ofst); |
| utf8_printf(p->out, "%-20s %u", aField[i].zName, val); |
| switch( ofst ){ |
| case 56: { |
| if( val==1 ) raw_printf(p->out, " (utf8)"); |
| if( val==2 ) raw_printf(p->out, " (utf16le)"); |
| if( val==3 ) raw_printf(p->out, " (utf16be)"); |
| } |
| } |
| raw_printf(p->out, "\n"); |
| } |
| if( zDb==0 ){ |
| zSchemaTab = sqlite3_mprintf("main.sqlite_master"); |
| }else if( strcmp(zDb,"temp")==0 ){ |
| zSchemaTab = sqlite3_mprintf("%s", "sqlite_temp_master"); |
| }else{ |
| zSchemaTab = sqlite3_mprintf("\"%w\".sqlite_master", zDb); |
| } |
| for(i=0; i<ArraySize(aQuery); i++){ |
| char *zSql = sqlite3_mprintf(aQuery[i].zSql, zSchemaTab); |
| int val = db_int(p, zSql); |
| sqlite3_free(zSql); |
| utf8_printf(p->out, "%-20s %d\n", aQuery[i].zName, val); |
| } |
| sqlite3_free(zSchemaTab); |
| sqlite3_file_control(p->db, zDb, SQLITE_FCNTL_DATA_VERSION, &iDataVersion); |
| utf8_printf(p->out, "%-20s %u\n", "data version", iDataVersion); |
| return 0; |
| } |
| |
| /* |
| ** Print the current sqlite3_errmsg() value to stderr and return 1. |
| */ |
| static int shellDatabaseError(sqlite3 *db){ |
| const char *zErr = sqlite3_errmsg(db); |
| utf8_printf(stderr, "Error: %s\n", zErr); |
| return 1; |
| } |
| |
| /* |
| ** Compare the pattern in zGlob[] against the text in z[]. Return TRUE |
| ** if they match and FALSE (0) if they do not match. |
| ** |
| ** Globbing rules: |
| ** |
| ** '*' Matches any sequence of zero or more characters. |
| ** |
| ** '?' Matches exactly one character. |
| ** |
| ** [...] Matches one character from the enclosed list of |
| ** characters. |
| ** |
| ** [^...] Matches one character not in the enclosed list. |
| ** |
| ** '#' Matches any sequence of one or more digits with an |
| ** optional + or - sign in front |
| ** |
| ** ' ' Any span of whitespace matches any other span of |
| ** whitespace. |
| ** |
| ** Extra whitespace at the end of z[] is ignored. |
| */ |
| static int testcase_glob(const char *zGlob, const char *z){ |
| int c, c2; |
| int invert; |
| int seen; |
| |
| while( (c = (*(zGlob++)))!=0 ){ |
| if( IsSpace(c) ){ |
| if( !IsSpace(*z) ) return 0; |
| while( IsSpace(*zGlob) ) zGlob++; |
| while( IsSpace(*z) ) z++; |
| }else if( c=='*' ){ |
| while( (c=(*(zGlob++))) == '*' || c=='?' ){ |
| if( c=='?' && (*(z++))==0 ) return 0; |
| } |
| if( c==0 ){ |
| return 1; |
| }else if( c=='[' ){ |
| while( *z && testcase_glob(zGlob-1,z)==0 ){ |
| z++; |
| } |
| return (*z)!=0; |
| } |
| while( (c2 = (*(z++)))!=0 ){ |
| while( c2!=c ){ |
| c2 = *(z++); |
| if( c2==0 ) return 0; |
| } |
| if( testcase_glob(zGlob,z) ) return 1; |
| } |
| return 0; |
| }else if( c=='?' ){ |
| if( (*(z++))==0 ) return 0; |
| }else if( c=='[' ){ |
| int prior_c = 0; |
| seen = 0; |
| invert = 0; |
| c = *(z++); |
| if( c==0 ) return 0; |
| c2 = *(zGlob++); |
| if( c2=='^' ){ |
| invert = 1; |
| c2 = *(zGlob++); |
| } |
| if( c2==']' ){ |
| if( c==']' ) seen = 1; |
| c2 = *(zGlob++); |
| } |
| while( c2 && c2!=']' ){ |
| if( c2=='-' && zGlob[0]!=']' && zGlob[0]!=0 && prior_c>0 ){ |
| c2 = *(zGlob++); |
| if( c>=prior_c && c<=c2 ) seen = 1; |
| prior_c = 0; |
| }else{ |
| if( c==c2 ){ |
| seen = 1; |
| } |
| prior_c = c2; |
| } |
| c2 = *(zGlob++); |
| } |
| if( c2==0 || (seen ^ invert)==0 ) return 0; |
| }else if( c=='#' ){ |
| if( (z[0]=='-' || z[0]=='+') && IsDigit(z[1]) ) z++; |
| if( !IsDigit(z[0]) ) return 0; |
| z++; |
| while( IsDigit(z[0]) ){ z++; } |
| }else{ |
| if( c!=(*(z++)) ) return 0; |
| } |
| } |
| while( IsSpace(*z) ){ z++; } |
| return *z==0; |
| } |
| |
| |
| /* |
| ** Compare the string as a command-line option with either one or two |
| ** initial "-" characters. |
| */ |
| static int optionMatch(const char *zStr, const char *zOpt){ |
| if( zStr[0]!='-' ) return 0; |
| zStr++; |
| if( zStr[0]=='-' ) zStr++; |
| return strcmp(zStr, zOpt)==0; |
| } |
| |
| /* |
| ** Delete a file. |
| */ |
| int shellDeleteFile(const char *zFilename){ |
| int rc; |
| #ifdef _WIN32 |
| wchar_t *z = sqlite3_win32_utf8_to_unicode(zFilename); |
| rc = _wunlink(z); |
| sqlite3_free(z); |
| #else |
| rc = unlink(zFilename); |
| #endif |
| return rc; |
| } |
| |
| /* |
| ** Try to delete the temporary file (if there is one) and free the |
| ** memory used to hold the name of the temp file. |
| */ |
| static void clearTempFile(ShellState *p){ |
| if( p->zTempFile==0 ) return; |
| if( p->doXdgOpen ) return; |
| if( shellDeleteFile(p->zTempFile) ) return; |
| sqlite3_free(p->zTempFile); |
| p->zTempFile = 0; |
| } |
| |
| /* |
| ** Create a new temp file name with the given suffix. |
| */ |
| static void newTempFile(ShellState *p, const char *zSuffix){ |
| clearTempFile(p); |
| sqlite3_free(p->zTempFile); |
| p->zTempFile = 0; |
| if( p->db ){ |
| sqlite3_file_control(p->db, 0, SQLITE_FCNTL_TEMPFILENAME, &p->zTempFile); |
| } |
| if( p->zTempFile==0 ){ |
| sqlite3_uint64 r; |
| sqlite3_randomness(sizeof(r), &r); |
| p->zTempFile = sqlite3_mprintf("temp%llx.%s", r, zSuffix); |
| }else{ |
| p->zTempFile = sqlite3_mprintf("%z.%s", p->zTempFile, zSuffix); |
| } |
| if( p->zTempFile==0 ){ |
| raw_printf(stderr, "out of memory\n"); |
| exit(1); |
| } |
| } |
| |
| |
| /* |
| ** The implementation of SQL scalar function fkey_collate_clause(), used |
| ** by the ".lint fkey-indexes" command. This scalar function is always |
| ** called with four arguments - the parent table name, the parent column name, |
| ** the child table name and the child column name. |
| ** |
| ** fkey_collate_clause('parent-tab', 'parent-col', 'child-tab', 'child-col') |
| ** |
| ** If either of the named tables or columns do not exist, this function |
| ** returns an empty string. An empty string is also returned if both tables |
| ** and columns exist but have the same default collation sequence. Or, |
| ** if both exist but the default collation sequences are different, this |
| ** function returns the string " COLLATE <parent-collation>", where |
| ** <parent-collation> is the default collation sequence of the parent column. |
| */ |
| static void shellFkeyCollateClause( |
| sqlite3_context *pCtx, |
| int nVal, |
| sqlite3_value **apVal |
| ){ |
| sqlite3 *db = sqlite3_context_db_handle(pCtx); |
| const char *zParent; |
| const char *zParentCol; |
| const char *zParentSeq; |
| const char *zChild; |
| const char *zChildCol; |
| const char *zChildSeq = 0; /* Initialize to avoid false-positive warning */ |
| int rc; |
| |
| assert( nVal==4 ); |
| zParent = (const char*)sqlite3_value_text(apVal[0]); |
| zParentCol = (const char*)sqlite3_value_text(apVal[1]); |
| zChild = (const char*)sqlite3_value_text(apVal[2]); |
| zChildCol = (const char*)sqlite3_value_text(apVal[3]); |
| |
| sqlite3_result_text(pCtx, "", -1, SQLITE_STATIC); |
| rc = sqlite3_table_column_metadata( |
| db, "main", zParent, zParentCol, 0, &zParentSeq, 0, 0, 0 |
| ); |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_table_column_metadata( |
| db, "main", zChild, zChildCol, 0, &zChildSeq, 0, 0, 0 |
| ); |
| } |
| |
| if( rc==SQLITE_OK && sqlite3_stricmp(zParentSeq, zChildSeq) ){ |
| char *z = sqlite3_mprintf(" COLLATE %s", zParentSeq); |
| sqlite3_result_text(pCtx, z, -1, SQLITE_TRANSIENT); |
| sqlite3_free(z); |
| } |
| } |
| |
| |
| /* |
| ** The implementation of dot-command ".lint fkey-indexes". |
| */ |
| static int lintFkeyIndexes( |
| ShellState *pState, /* Current shell tool state */ |
| char **azArg, /* Array of arguments passed to dot command */ |
| int nArg /* Number of entries in azArg[] */ |
| ){ |
| sqlite3 *db = pState->db; /* Database handle to query "main" db of */ |
| FILE *out = pState->out; /* Stream to write non-error output to */ |
| int bVerbose = 0; /* If -verbose is present */ |
| int bGroupByParent = 0; /* If -groupbyparent is present */ |
| int i; /* To iterate through azArg[] */ |
| const char *zIndent = ""; /* How much to indent CREATE INDEX by */ |
| int rc; /* Return code */ |
| sqlite3_stmt *pSql = 0; /* Compiled version of SQL statement below */ |
| |
| /* |
| ** This SELECT statement returns one row for each foreign key constraint |
| ** in the schema of the main database. The column values are: |
| ** |
| ** 0. The text of an SQL statement similar to: |
| ** |
| ** "EXPLAIN QUERY PLAN SELECT 1 FROM child_table WHERE child_key=?" |
| ** |
| ** This SELECT is similar to the one that the foreign keys implementation |
| ** needs to run internally on child tables. If there is an index that can |
| ** be used to optimize this query, then it can also be used by the FK |
| ** implementation to optimize DELETE or UPDATE statements on the parent |
| ** table. |
| ** |
| ** 1. A GLOB pattern suitable for sqlite3_strglob(). If the plan output by |
| ** the EXPLAIN QUERY PLAN command matches this pattern, then the schema |
| ** contains an index that can be used to optimize the query. |
| ** |
| ** 2. Human readable text that describes the child table and columns. e.g. |
| ** |
| ** "child_table(child_key1, child_key2)" |
| ** |
| ** 3. Human readable text that describes the parent table and columns. e.g. |
| ** |
| ** "parent_table(parent_key1, parent_key2)" |
| ** |
| ** 4. A full CREATE INDEX statement for an index that could be used to |
| ** optimize DELETE or UPDATE statements on the parent table. e.g. |
| ** |
| ** "CREATE INDEX child_table_child_key ON child_table(child_key)" |
| ** |
| ** 5. The name of the parent table. |
| ** |
| ** These six values are used by the C logic below to generate the report. |
| */ |
| const char *zSql = |
| "SELECT " |
| " 'EXPLAIN QUERY PLAN SELECT 1 FROM ' || quote(s.name) || ' WHERE '" |
| " || group_concat(quote(s.name) || '.' || quote(f.[from]) || '=?' " |
| " || fkey_collate_clause(" |
| " f.[table], COALESCE(f.[to], p.[name]), s.name, f.[from]),' AND ')" |
| ", " |
| " 'SEARCH TABLE ' || s.name || ' USING COVERING INDEX*('" |
| " || group_concat('*=?', ' AND ') || ')'" |
| ", " |
| " s.name || '(' || group_concat(f.[from], ', ') || ')'" |
| ", " |
| " f.[table] || '(' || group_concat(COALESCE(f.[to], p.[name])) || ')'" |
| ", " |
| " 'CREATE INDEX ' || quote(s.name ||'_'|| group_concat(f.[from], '_'))" |
| " || ' ON ' || quote(s.name) || '('" |
| " || group_concat(quote(f.[from]) ||" |
| " fkey_collate_clause(" |
| " f.[table], COALESCE(f.[to], p.[name]), s.name, f.[from]), ', ')" |
| " || ');'" |
| ", " |
| " f.[table] " |
| "FROM sqlite_master AS s, pragma_foreign_key_list(s.name) AS f " |
| "LEFT JOIN pragma_table_info AS p ON (pk-1=seq AND p.arg=f.[table]) " |
| "GROUP BY s.name, f.id " |
| "ORDER BY (CASE WHEN ? THEN f.[table] ELSE s.name END)" |
| ; |
| const char *zGlobIPK = "SEARCH TABLE * USING INTEGER PRIMARY KEY (rowid=?)"; |
| |
| for(i=2; i<nArg; i++){ |
| int n = strlen30(azArg[i]); |
| if( n>1 && sqlite3_strnicmp("-verbose", azArg[i], n)==0 ){ |
| bVerbose = 1; |
| } |
| else if( n>1 && sqlite3_strnicmp("-groupbyparent", azArg[i], n)==0 ){ |
| bGroupByParent = 1; |
| zIndent = " "; |
| } |
| else{ |
| raw_printf(stderr, "Usage: %s %s ?-verbose? ?-groupbyparent?\n", |
| azArg[0], azArg[1] |
| ); |
| return SQLITE_ERROR; |
| } |
| } |
| |
| /* Register the fkey_collate_clause() SQL function */ |
| rc = sqlite3_create_function(db, "fkey_collate_clause", 4, SQLITE_UTF8, |
| 0, shellFkeyCollateClause, 0, 0 |
| ); |
| |
| |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_prepare_v2(db, zSql, -1, &pSql, 0); |
| } |
| if( rc==SQLITE_OK ){ |
| sqlite3_bind_int(pSql, 1, bGroupByParent); |
| } |
| |
| if( rc==SQLITE_OK ){ |
| int rc2; |
| char *zPrev = 0; |
| while( SQLITE_ROW==sqlite3_step(pSql) ){ |
| int res = -1; |
| sqlite3_stmt *pExplain = 0; |
| const char *zEQP = (const char*)sqlite3_column_text(pSql, 0); |
| const char *zGlob = (const char*)sqlite3_column_text(pSql, 1); |
| const char *zFrom = (const char*)sqlite3_column_text(pSql, 2); |
| const char *zTarget = (const char*)sqlite3_column_text(pSql, 3); |
| const char *zCI = (const char*)sqlite3_column_text(pSql, 4); |
| const char *zParent = (const char*)sqlite3_column_text(pSql, 5); |
| |
| rc = sqlite3_prepare_v2(db, zEQP, -1, &pExplain, 0); |
| if( rc!=SQLITE_OK ) break; |
| if( SQLITE_ROW==sqlite3_step(pExplain) ){ |
| const char *zPlan = (const char*)sqlite3_column_text(pExplain, 3); |
| res = ( |
| 0==sqlite3_strglob(zGlob, zPlan) |
| || 0==sqlite3_strglob(zGlobIPK, zPlan) |
| ); |
| } |
| rc = sqlite3_finalize(pExplain); |
| if( rc!=SQLITE_OK ) break; |
| |
| if( res<0 ){ |
| raw_printf(stderr, "Error: internal error"); |
| break; |
| }else{ |
| if( bGroupByParent |
| && (bVerbose || res==0) |
| && (zPrev==0 || sqlite3_stricmp(zParent, zPrev)) |
| ){ |
| raw_printf(out, "-- Parent table %s\n", zParent); |
| sqlite3_free(zPrev); |
| zPrev = sqlite3_mprintf("%s", zParent); |
| } |
| |
| if( res==0 ){ |
| raw_printf(out, "%s%s --> %s\n", zIndent, zCI, zTarget); |
| }else if( bVerbose ){ |
| raw_printf(out, "%s/* no extra indexes required for %s -> %s */\n", |
| zIndent, zFrom, zTarget |
| ); |
| } |
| } |
| } |
| sqlite3_free(zPrev); |
| |
| if( rc!=SQLITE_OK ){ |
| raw_printf(stderr, "%s\n", sqlite3_errmsg(db)); |
| } |
| |
| rc2 = sqlite3_finalize(pSql); |
| if( rc==SQLITE_OK && rc2!=SQLITE_OK ){ |
| rc = rc2; |
| raw_printf(stderr, "%s\n", sqlite3_errmsg(db)); |
| } |
| }else{ |
| raw_printf(stderr, "%s\n", sqlite3_errmsg(db)); |
| } |
| |
| return rc; |
| } |
| |
| /* |
| ** Implementation of ".lint" dot command. |
| */ |
| static int lintDotCommand( |
| ShellState *pState, /* Current shell tool state */ |
| char **azArg, /* Array of arguments passed to dot command */ |
| int nArg /* Number of entries in azArg[] */ |
| ){ |
| int n; |
| n = (nArg>=2 ? strlen30(azArg[1]) : 0); |
| if( n<1 || sqlite3_strnicmp(azArg[1], "fkey-indexes", n) ) goto usage; |
| return lintFkeyIndexes(pState, azArg, nArg); |
| |
| usage: |
| raw_printf(stderr, "Usage %s sub-command ?switches...?\n", azArg[0]); |
| raw_printf(stderr, "Where sub-commands are:\n"); |
| raw_printf(stderr, " fkey-indexes\n"); |
| return SQLITE_ERROR; |
| } |
| |
| #if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB) |
| /********************************************************************************* |
| ** The ".archive" or ".ar" command. |
| */ |
| static void shellPrepare( |
| sqlite3 *db, |
| int *pRc, |
| const char *zSql, |
| sqlite3_stmt **ppStmt |
| ){ |
| *ppStmt = 0; |
| if( *pRc==SQLITE_OK ){ |
| int rc = sqlite3_prepare_v2(db, zSql, -1, ppStmt, 0); |
| if( rc!=SQLITE_OK ){ |
| raw_printf(stderr, "sql error: %s (%d)\n", |
| sqlite3_errmsg(db), sqlite3_errcode(db) |
| ); |
| *pRc = rc; |
| } |
| } |
| } |
| |
| static void shellPreparePrintf( |
| sqlite3 *db, |
| int *pRc, |
| sqlite3_stmt **ppStmt, |
| const char *zFmt, |
| ... |
| ){ |
| *ppStmt = 0; |
| if( *pRc==SQLITE_OK ){ |
| va_list ap; |
| char *z; |
| va_start(ap, zFmt); |
| z = sqlite3_vmprintf(zFmt, ap); |
| va_end(ap); |
| if( z==0 ){ |
| *pRc = SQLITE_NOMEM; |
| }else{ |
| shellPrepare(db, pRc, z, ppStmt); |
| sqlite3_free(z); |
| } |
| } |
| } |
| |
| static void shellFinalize( |
| int *pRc, |
| sqlite3_stmt *pStmt |
| ){ |
| if( pStmt ){ |
| sqlite3 *db = sqlite3_db_handle(pStmt); |
| int rc = sqlite3_finalize(pStmt); |
| if( *pRc==SQLITE_OK ){ |
| if( rc!=SQLITE_OK ){ |
| raw_printf(stderr, "SQL error: %s\n", sqlite3_errmsg(db)); |
| } |
| *pRc = rc; |
| } |
| } |
| } |
| |
| static void shellReset( |
| int *pRc, |
| sqlite3_stmt *pStmt |
| ){ |
| int rc = sqlite3_reset(pStmt); |
| if( *pRc==SQLITE_OK ){ |
| if( rc!=SQLITE_OK ){ |
| sqlite3 *db = sqlite3_db_handle(pStmt); |
| raw_printf(stderr, "SQL error: %s\n", sqlite3_errmsg(db)); |
| } |
| *pRc = rc; |
| } |
| } |
| /* |
| ** Structure representing a single ".ar" command. |
| */ |
| typedef struct ArCommand ArCommand; |
| struct ArCommand { |
| u8 eCmd; /* An AR_CMD_* value */ |
| u8 bVerbose; /* True if --verbose */ |
| u8 bZip; /* True if the archive is a ZIP */ |
| u8 bDryRun; /* True if --dry-run */ |
| u8 bAppend; /* True if --append */ |
| u8 fromCmdLine; /* Run from -A instead of .archive */ |
| int nArg; /* Number of command arguments */ |
| char *zSrcTable; /* "sqlar", "zipfile($file)" or "zip" */ |
| const char *zFile; /* --file argument, or NULL */ |
| const char *zDir; /* --directory argument, or NULL */ |
| char **azArg; /* Array of command arguments */ |
| ShellState *p; /* Shell state */ |
| sqlite3 *db; /* Database containing the archive */ |
| }; |
| |
| /* |
| ** Print a usage message for the .ar command to stderr and return SQLITE_ERROR. |
| */ |
| static int arUsage(FILE *f){ |
| showHelp(f,"archive"); |
| return SQLITE_ERROR; |
| } |
| |
| /* |
| ** Print an error message for the .ar command to stderr and return |
| ** SQLITE_ERROR. |
| */ |
| static int arErrorMsg(ArCommand *pAr, const char *zFmt, ...){ |
| va_list ap; |
| char *z; |
| va_start(ap, zFmt); |
| z = sqlite3_vmprintf(zFmt, ap); |
| va_end(ap); |
| utf8_printf(stderr, "Error: %s\n", z); |
| if( pAr->fromCmdLine ){ |
| utf8_printf(stderr, "Use \"-A\" for more help\n"); |
| }else{ |
| utf8_printf(stderr, "Use \".archive --help\" for more help\n"); |
| } |
| sqlite3_free(z); |
| return SQLITE_ERROR; |
| } |
| |
| /* |
| ** Values for ArCommand.eCmd. |
| */ |
| #define AR_CMD_CREATE 1 |
| #define AR_CMD_UPDATE 2 |
| #define AR_CMD_INSERT 3 |
| #define AR_CMD_EXTRACT 4 |
| #define AR_CMD_LIST 5 |
| #define AR_CMD_HELP 6 |
| |
| /* |
| ** Other (non-command) switches. |
| */ |
| #define AR_SWITCH_VERBOSE 7 |
| #define AR_SWITCH_FILE 8 |
| #define AR_SWITCH_DIRECTORY 9 |
| #define AR_SWITCH_APPEND 10 |
| #define AR_SWITCH_DRYRUN 11 |
| |
| static int arProcessSwitch(ArCommand *pAr, int eSwitch, const char *zArg){ |
| switch( eSwitch ){ |
| case AR_CMD_CREATE: |
| case AR_CMD_EXTRACT: |
| case AR_CMD_LIST: |
| case AR_CMD_UPDATE: |
| case AR_CMD_INSERT: |
| case AR_CMD_HELP: |
| if( pAr->eCmd ){ |
| return arErrorMsg(pAr, "multiple command options"); |
| } |
| pAr->eCmd = eSwitch; |
| break; |
| |
| case AR_SWITCH_DRYRUN: |
| pAr->bDryRun = 1; |
| break; |
| case AR_SWITCH_VERBOSE: |
| pAr->bVerbose = 1; |
| break; |
| case AR_SWITCH_APPEND: |
| pAr->bAppend = 1; |
| /* Fall thru into --file */ |
| case AR_SWITCH_FILE: |
| pAr->zFile = zArg; |
| break; |
| case AR_SWITCH_DIRECTORY: |
| pAr->zDir = zArg; |
| break; |
| } |
| |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** Parse the command line for an ".ar" command. The results are written into |
| ** structure (*pAr). SQLITE_OK is returned if the command line is parsed |
| ** successfully, otherwise an error message is written to stderr and |
| ** SQLITE_ERROR returned. |
| */ |
| static int arParseCommand( |
| char **azArg, /* Array of arguments passed to dot command */ |
| int nArg, /* Number of entries in azArg[] */ |
| ArCommand *pAr /* Populate this object */ |
| ){ |
| struct ArSwitch { |
| const char *zLong; |
| char cShort; |
| u8 eSwitch; |
| u8 bArg; |
| } aSwitch[] = { |
| { "create", 'c', AR_CMD_CREATE, 0 }, |
| { "extract", 'x', AR_CMD_EXTRACT, 0 }, |
| { "insert", 'i', AR_CMD_INSERT, 0 }, |
| { "list", 't', AR_CMD_LIST, 0 }, |
| { "update", 'u', AR_CMD_UPDATE, 0 }, |
| { "help", 'h', AR_CMD_HELP, 0 }, |
| { "verbose", 'v', AR_SWITCH_VERBOSE, 0 }, |
| { "file", 'f', AR_SWITCH_FILE, 1 }, |
| { "append", 'a', AR_SWITCH_APPEND, 1 }, |
| { "directory", 'C', AR_SWITCH_DIRECTORY, 1 }, |
| { "dryrun", 'n', AR_SWITCH_DRYRUN, 0 }, |
| }; |
| int nSwitch = sizeof(aSwitch) / sizeof(struct ArSwitch); |
| struct ArSwitch *pEnd = &aSwitch[nSwitch]; |
| |
| if( nArg<=1 ){ |
| utf8_printf(stderr, "Wrong number of arguments. Usage:\n"); |
| return arUsage(stderr); |
| }else{ |
| char *z = azArg[1]; |
| if( z[0]!='-' ){ |
| /* Traditional style [tar] invocation */ |
| int i; |
| int iArg = 2; |
| for(i=0; z[i]; i++){ |
| const char *zArg = 0; |
| struct ArSwitch *pOpt; |
| for(pOpt=&aSwitch[0]; pOpt<pEnd; pOpt++){ |
| if( z[i]==pOpt->cShort ) break; |
| } |
| if( pOpt==pEnd ){ |
| return arErrorMsg(pAr, "unrecognized option: %c", z[i]); |
| } |
| if( pOpt->bArg ){ |
| if( iArg>=nArg ){ |
| return arErrorMsg(pAr, "option requires an argument: %c",z[i]); |
| } |
| zArg = azArg[iArg++]; |
| } |
| if( arProcessSwitch(pAr, pOpt->eSwitch, zArg) ) return SQLITE_ERROR; |
| } |
| pAr->nArg = nArg-iArg; |
| if( pAr->nArg>0 ){ |
| pAr->azArg = &azArg[iArg]; |
| } |
| }else{ |
| /* Non-traditional invocation */ |
| int iArg; |
| for(iArg=1; iArg<nArg; iArg++){ |
| int n; |
| z = azArg[iArg]; |
| if( z[0]!='-' ){ |
| /* All remaining command line words are command arguments. */ |
| pAr->azArg = &azArg[iArg]; |
| pAr->nArg = nArg-iArg; |
| break; |
| } |
| n = strlen30(z); |
| |
| if( z[1]!='-' ){ |
| int i; |
| /* One or more short options */ |
| for(i=1; i<n; i++){ |
| const char *zArg = 0; |
| struct ArSwitch *pOpt; |
| for(pOpt=&aSwitch[0]; pOpt<pEnd; pOpt++){ |
| if( z[i]==pOpt->cShort ) break; |
| } |
| if( pOpt==pEnd ){ |
| return arErrorMsg(pAr, "unrecognized option: %c", z[i]); |
| } |
| if( pOpt->bArg ){ |
| if( i<(n-1) ){ |
| zArg = &z[i+1]; |
| i = n; |
| }else{ |
| if( iArg>=(nArg-1) ){ |
| return arErrorMsg(pAr, "option requires an argument: %c",z[i]); |
| } |
| zArg = azArg[++iArg]; |
| } |
| } |
| if( arProcessSwitch(pAr, pOpt->eSwitch, zArg) ) return SQLITE_ERROR; |
| } |
| }else if( z[2]=='\0' ){ |
| /* A -- option, indicating that all remaining command line words |
| ** are command arguments. */ |
| pAr->azArg = &azArg[iArg+1]; |
| pAr->nArg = nArg-iArg-1; |
| break; |
| }else{ |
| /* A long option */ |
| const char *zArg = 0; /* Argument for option, if any */ |
| struct ArSwitch *pMatch = 0; /* Matching option */ |
| struct ArSwitch *pOpt; /* Iterator */ |
| for(pOpt=&aSwitch[0]; pOpt<pEnd; pOpt++){ |
| const char *zLong = pOpt->zLong; |
| if( (n-2)<=strlen30(zLong) && 0==memcmp(&z[2], zLong, n-2) ){ |
| if( pMatch ){ |
| return arErrorMsg(pAr, "ambiguous option: %s",z); |
| }else{ |
| pMatch = pOpt; |
| } |
| } |
| } |
| |
| if( pMatch==0 ){ |
| return arErrorMsg(pAr, "unrecognized option: %s", z); |
| } |
| if( pMatch->bArg ){ |
| if( iArg>=(nArg-1) ){ |
| return arErrorMsg(pAr, "option requires an argument: %s", z); |
| } |
| zArg = azArg[++iArg]; |
| } |
| if( arProcessSwitch(pAr, pMatch->eSwitch, zArg) ) return SQLITE_ERROR; |
| } |
| } |
| } |
| } |
| |
| return SQLITE_OK; |
| } |
| |
| /* |
| ** This function assumes that all arguments within the ArCommand.azArg[] |
| ** array refer to archive members, as for the --extract or --list commands. |
| ** It checks that each of them are present. If any specified file is not |
| ** present in the archive, an error is printed to stderr and an error |
| ** code returned. Otherwise, if all specified arguments are present in |
| ** the archive, SQLITE_OK is returned. |
| ** |
| ** This function strips any trailing '/' characters from each argument. |
| ** This is consistent with the way the [tar] command seems to work on |
| ** Linux. |
| */ |
| static int arCheckEntries(ArCommand *pAr){ |
| int rc = SQLITE_OK; |
| if( pAr->nArg ){ |
| int i, j; |
| sqlite3_stmt *pTest = 0; |
| |
| shellPreparePrintf(pAr->db, &rc, &pTest, |
| "SELECT name FROM %s WHERE name=$name", |
| pAr->zSrcTable |
| ); |
| j = sqlite3_bind_parameter_index(pTest, "$name"); |
| for(i=0; i<pAr->nArg && rc==SQLITE_OK; i++){ |
| char *z = pAr->azArg[i]; |
| int n = strlen30(z); |
| int bOk = 0; |
| while( n>0 && z[n-1]=='/' ) n--; |
| z[n] = '\0'; |
| sqlite3_bind_text(pTest, j, z, -1, SQLITE_STATIC); |
| if( SQLITE_ROW==sqlite3_step(pTest) ){ |
| bOk = 1; |
| } |
| shellReset(&rc, pTest); |
| if( rc==SQLITE_OK && bOk==0 ){ |
| utf8_printf(stderr, "not found in archive: %s\n", z); |
| rc = SQLITE_ERROR; |
| } |
| } |
| shellFinalize(&rc, pTest); |
| } |
| return rc; |
| } |
| |
| /* |
| ** Format a WHERE clause that can be used against the "sqlar" table to |
| ** identify all archive members that match the command arguments held |
| ** in (*pAr). Leave this WHERE clause in (*pzWhere) before returning. |
| ** The caller is responsible for eventually calling sqlite3_free() on |
| ** any non-NULL (*pzWhere) value. |
| */ |
| static void arWhereClause( |
| int *pRc, |
| ArCommand *pAr, |
| char **pzWhere /* OUT: New WHERE clause */ |
| ){ |
| char *zWhere = 0; |
| if( *pRc==SQLITE_OK ){ |
| if( pAr->nArg==0 ){ |
| zWhere = sqlite3_mprintf("1"); |
| }else{ |
| int i; |
| const char *zSep = ""; |
| for(i=0; i<pAr->nArg; i++){ |
| const char *z = pAr->azArg[i]; |
| zWhere = sqlite3_mprintf( |
| "%z%s name = '%q' OR substr(name,1,%d) = '%q/'", |
| zWhere, zSep, z, strlen30(z)+1, z |
| ); |
| if( zWhere==0 ){ |
| *pRc = SQLITE_NOMEM; |
| break; |
| } |
| zSep = " OR "; |
| } |
| } |
| } |
| *pzWhere = zWhere; |
| } |
| |
| /* |
| ** Implementation of .ar "lisT" command. |
| */ |
| static int arListCommand(ArCommand *pAr){ |
| const char *zSql = "SELECT %s FROM %s WHERE %s"; |
| const char *azCols[] = { |
| "name", |
| "lsmode(mode), sz, datetime(mtime, 'unixepoch'), name" |
| }; |
| |
| char *zWhere = 0; |
| sqlite3_stmt *pSql = 0; |
| int rc; |
| |
| rc = arCheckEntries(pAr); |
| arWhereClause(&rc, pAr, &zWhere); |
| |
| shellPreparePrintf(pAr->db, &rc, &pSql, zSql, azCols[pAr->bVerbose], |
| pAr->zSrcTable, zWhere); |
| if( pAr->bDryRun ){ |
| utf8_printf(pAr->p->out, "%s\n", sqlite3_sql(pSql)); |
| }else{ |
| while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSql) ){ |
| if( pAr->bVerbose ){ |
| utf8_printf(pAr->p->out, "%s % 10d %s %s\n", |
| sqlite3_column_text(pSql, 0), |
| sqlite3_column_int(pSql, 1), |
| sqlite3_column_text(pSql, 2), |
| sqlite3_column_text(pSql, 3) |
| ); |
| }else{ |
| utf8_printf(pAr->p->out, "%s\n", sqlite3_column_text(pSql, 0)); |
| } |
| } |
| } |
| shellFinalize(&rc, pSql); |
| sqlite3_free(zWhere); |
| return rc; |
| } |
| |
| |
| /* |
| ** Implementation of .ar "eXtract" command. |
| */ |
| static int arExtractCommand(ArCommand *pAr){ |
| const char *zSql1 = |
| "SELECT " |
| " ($dir || name)," |
| " writefile(($dir || name), %s, mode, mtime) " |
| "FROM %s WHERE (%s) AND (data IS NULL OR $dirOnly = 0)" |
| " AND name NOT GLOB '*..[/\\]*'"; |
| |
| const char *azExtraArg[] = { |
| "sqlar_uncompress(data, sz)", |
| "data" |
| }; |
| |
| sqlite3_stmt *pSql = 0; |
| int rc = SQLITE_OK; |
| char *zDir = 0; |
| char *zWhere = 0; |
| int i, j; |
| |
| /* If arguments are specified, check that they actually exist within |
| ** the archive before proceeding. And formulate a WHERE clause to |
| ** match them. */ |
| rc = arCheckEntries(pAr); |
| arWhereClause(&rc, pAr, &zWhere); |
| |
| if( rc==SQLITE_OK ){ |
| if( pAr->zDir ){ |
| zDir = sqlite3_mprintf("%s/", pAr->zDir); |
| }else{ |
| zDir = sqlite3_mprintf(""); |
| } |
| if( zDir==0 ) rc = SQLITE_NOMEM; |
| } |
| |
| shellPreparePrintf(pAr->db, &rc, &pSql, zSql1, |
| azExtraArg[pAr->bZip], pAr->zSrcTable, zWhere |
| ); |
| |
| if( rc==SQLITE_OK ){ |
| j = sqlite3_bind_parameter_index(pSql, "$dir"); |
| sqlite3_bind_text(pSql, j, zDir, -1, SQLITE_STATIC); |
| |
| /* Run the SELECT statement twice. The first time, writefile() is called |
| ** for all archive members that should be extracted. The second time, |
| ** only for the directories. This is because the timestamps for |
| ** extracted directories must be reset after they are populated (as |
| ** populating them changes the timestamp). */ |
| for(i=0; i<2; i++){ |
| j = sqlite3_bind_parameter_index(pSql, "$dirOnly"); |
| sqlite3_bind_int(pSql, j, i); |
| if( pAr->bDryRun ){ |
| utf8_printf(pAr->p->out, "%s\n", sqlite3_sql(pSql)); |
| }else{ |
| while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSql) ){ |
| if( i==0 && pAr->bVerbose ){ |
| utf8_printf(pAr->p->out, "%s\n", sqlite3_column_text(pSql, 0)); |
| } |
| } |
| } |
| shellReset(&rc, pSql); |
| } |
| shellFinalize(&rc, pSql); |
| } |
| |
| sqlite3_free(zDir); |
| sqlite3_free(zWhere); |
| return rc; |
| } |
| |
| /* |
| ** Run the SQL statement in zSql. Or if doing a --dryrun, merely print it out. |
| */ |
| static int arExecSql(ArCommand *pAr, const char *zSql){ |
| int rc; |
| if( pAr->bDryRun ){ |
| utf8_printf(pAr->p->out, "%s\n", zSql); |
| rc = SQLITE_OK; |
| }else{ |
| char *zErr = 0; |
| rc = sqlite3_exec(pAr->db, zSql, 0, 0, &zErr); |
| if( zErr ){ |
| utf8_printf(stdout, "ERROR: %s\n", zErr); |
| sqlite3_free(zErr); |
| } |
| } |
| return rc; |
| } |
| |
| |
| /* |
| ** Implementation of .ar "create", "insert", and "update" commands. |
| ** |
| ** create -> Create a new SQL archive |
| ** insert -> Insert or reinsert all files listed |
| ** update -> Insert files that have changed or that were not |
| ** previously in the archive |
| ** |
| ** Create the "sqlar" table in the database if it does not already exist. |
| ** Then add each file in the azFile[] array to the archive. Directories |
| ** are added recursively. If argument bVerbose is non-zero, a message is |
| ** printed on stdout for each file archived. |
| ** |
| ** The create command is the same as update, except that it drops |
| ** any existing "sqlar" table before beginning. The "insert" command |
| ** always overwrites every file named on the command-line, where as |
| ** "update" only overwrites if the size or mtime or mode has changed. |
| */ |
| static int arCreateOrUpdateCommand( |
| ArCommand *pAr, /* Command arguments and options */ |
| int bUpdate, /* true for a --create. */ |
| int bOnlyIfChanged /* Only update if file has changed */ |
| ){ |
| const char *zCreate = |
| "CREATE TABLE IF NOT EXISTS sqlar(\n" |
| " name TEXT PRIMARY KEY, -- name of the file\n" |
| " mode INT, -- access permissions\n" |
| " mtime INT, -- last modification time\n" |
| " sz INT, -- original file size\n" |
| " data BLOB -- compressed content\n" |
| ")"; |
| const char *zDrop = "DROP TABLE IF EXISTS sqlar"; |
| const char *zInsertFmt[2] = { |
| "REPLACE INTO %s(name,mode,mtime,sz,data)\n" |
| " SELECT\n" |
| " %s,\n" |
| " mode,\n" |
| " mtime,\n" |
| " CASE substr(lsmode(mode),1,1)\n" |
| " WHEN '-' THEN length(data)\n" |
| " WHEN 'd' THEN 0\n" |
| " ELSE -1 END,\n" |
| " sqlar_compress(data)\n" |
| " FROM fsdir(%Q,%Q) AS disk\n" |
| " WHERE lsmode(mode) NOT LIKE '?%%'%s;" |
| , |
| "REPLACE INTO %s(name,mode,mtime,data)\n" |
| " SELECT\n" |
| " %s,\n" |
| " mode,\n" |
| " mtime,\n" |
| " data\n" |
| " FROM fsdir(%Q,%Q) AS disk\n" |
| " WHERE lsmode(mode) NOT LIKE '?%%'%s;" |
| }; |
| int i; /* For iterating through azFile[] */ |
| int rc; /* Return code */ |
| const char *zTab = 0; /* SQL table into which to insert */ |
| char *zSql; |
| char zTemp[50]; |
| char *zExists = 0; |
| |
| arExecSql(pAr, "PRAGMA page_size=512"); |
| rc = arExecSql(pAr, "SAVEPOINT ar;"); |
| if( rc!=SQLITE_OK ) return rc; |
| zTemp[0] = 0; |
| if( pAr->bZip ){ |
| /* Initialize the zipfile virtual table, if necessary */ |
| if( pAr->zFile ){ |
| sqlite3_uint64 r; |
| sqlite3_randomness(sizeof(r),&r); |
| sqlite3_snprintf(sizeof(zTemp),zTemp,"zip%016llx",r); |
| zTab = zTemp; |
| zSql = sqlite3_mprintf( |
| "CREATE VIRTUAL TABLE temp.%s USING zipfile(%Q)", |
| zTab, pAr->zFile |
| ); |
| rc = arExecSql(pAr, zSql); |
| sqlite3_free(zSql); |
| }else{ |
| zTab = "zip"; |
| } |
| }else{ |
| /* Initialize the table for an SQLAR */ |
| zTab = "sqlar"; |
| if( bUpdate==0 ){ |
| rc = arExecSql(pAr, zDrop); |
| if( rc!=SQLITE_OK ) goto end_ar_transaction; |
| } |
| rc = arExecSql(pAr, zCreate); |
| } |
| if( bOnlyIfChanged ){ |
| zExists = sqlite3_mprintf( |
| " AND NOT EXISTS(" |
| "SELECT 1 FROM %s AS mem" |
| " WHERE mem.name=disk.name" |
| " AND mem.mtime=disk.mtime" |
| " AND mem.mode=disk.mode)", zTab); |
| }else{ |
| zExists = sqlite3_mprintf(""); |
| } |
| if( zExists==0 ) rc = SQLITE_NOMEM; |
| for(i=0; i<pAr->nArg && rc==SQLITE_OK; i++){ |
| char *zSql2 = sqlite3_mprintf(zInsertFmt[pAr->bZip], zTab, |
| pAr->bVerbose ? "shell_putsnl(name)" : "name", |
| pAr->azArg[i], pAr->zDir, zExists); |
| rc = arExecSql(pAr, zSql2); |
| sqlite3_free(zSql2); |
| } |
| end_ar_transaction: |
| if( rc!=SQLITE_OK ){ |
| sqlite3_exec(pAr->db, "ROLLBACK TO ar; RELEASE ar;", 0, 0, 0); |
| }else{ |
| rc = arExecSql(pAr, "RELEASE ar;"); |
| if( pAr->bZip && pAr->zFile ){ |
| zSql = sqlite3_mprintf("DROP TABLE %s", zTemp); |
| arExecSql(pAr, zSql); |
| sqlite3_free(zSql); |
| } |
| } |
| sqlite3_free(zExists); |
| return rc; |
| } |
| |
| /* |
| ** Implementation of ".ar" dot command. |
| */ |
| static int arDotCommand( |
| ShellState *pState, /* Current shell tool state */ |
| int fromCmdLine, /* True if -A command-line option, not .ar cmd */ |
| char **azArg, /* Array of arguments passed to dot command */ |
| int nArg /* Number of entries in azArg[] */ |
| ){ |
| ArCommand cmd; |
| int rc; |
| memset(&cmd, 0, sizeof(cmd)); |
| cmd.fromCmdLine = fromCmdLine; |
| rc = arParseCommand(azArg, nArg, &cmd); |
| if( rc==SQLITE_OK ){ |
| int eDbType = SHELL_OPEN_UNSPEC; |
| cmd.p = pState; |
| cmd.db = pState->db; |
| if( cmd.zFile ){ |
| eDbType = deduceDatabaseType(cmd.zFile, 1); |
| }else{ |
| eDbType = pState->openMode; |
| } |
| if( eDbType==SHELL_OPEN_ZIPFILE ){ |
| if( cmd.eCmd==AR_CMD_EXTRACT || cmd.eCmd==AR_CMD_LIST ){ |
| if( cmd.zFile==0 ){ |
| cmd.zSrcTable = sqlite3_mprintf("zip"); |
| }else{ |
| cmd.zSrcTable = sqlite3_mprintf("zipfile(%Q)", cmd.zFile); |
| } |
| } |
| cmd.bZip = 1; |
| }else if( cmd.zFile ){ |
| int flags; |
| if( cmd.bAppend ) eDbType = SHELL_OPEN_APPENDVFS; |
| if( cmd.eCmd==AR_CMD_CREATE || cmd.eCmd==AR_CMD_INSERT |
| || cmd.eCmd==AR_CMD_UPDATE ){ |
| flags = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE; |
| }else{ |
| flags = SQLITE_OPEN_READONLY; |
| } |
| cmd.db = 0; |
| if( cmd.bDryRun ){ |
| utf8_printf(pState->out, "-- open database '%s'%s\n", cmd.zFile, |
| eDbType==SHELL_OPEN_APPENDVFS ? " using 'apndvfs'" : ""); |
| } |
| rc = sqlite3_open_v2(cmd.zFile, &cmd.db, flags, |
| eDbType==SHELL_OPEN_APPENDVFS ? "apndvfs" : 0); |
| if( rc!=SQLITE_OK ){ |
| utf8_printf(stderr, "cannot open file: %s (%s)\n", |
| cmd.zFile, sqlite3_errmsg(cmd.db) |
| ); |
| goto end_ar_command; |
| } |
| sqlite3_fileio_init(cmd.db, 0, 0); |
| sqlite3_sqlar_init(cmd.db, 0, 0); |
| sqlite3_create_function(cmd.db, "shell_putsnl", 1, SQLITE_UTF8, cmd.p, |
| shellPutsFunc, 0, 0); |
| |
| } |
| if( cmd.zSrcTable==0 && cmd.bZip==0 && cmd.eCmd!=AR_CMD_HELP ){ |
| if( cmd.eCmd!=AR_CMD_CREATE |
| && sqlite3_table_column_metadata(cmd.db,0,"sqlar","name",0,0,0,0,0) |
| ){ |
| utf8_printf(stderr, "database does not contain an 'sqlar' table\n"); |
| rc = SQLITE_ERROR; |
| goto end_ar_command; |
| } |
| cmd.zSrcTable = sqlite3_mprintf("sqlar"); |
| } |
| |
| switch( cmd.eCmd ){ |
| case AR_CMD_CREATE: |
| rc = arCreateOrUpdateCommand(&cmd, 0, 0); |
| break; |
| |
| case AR_CMD_EXTRACT: |
| rc = arExtractCommand(&cmd); |
| break; |
| |
| case AR_CMD_LIST: |
| rc = arListCommand(&cmd); |
| break; |
| |
| case AR_CMD_HELP: |
| arUsage(pState->out); |
| break; |
| |
| case AR_CMD_INSERT: |
| rc = arCreateOrUpdateCommand(&cmd, 1, 0); |
| break; |
| |
| default: |
| assert( cmd.eCmd==AR_CMD_UPDATE ); |
| rc = arCreateOrUpdateCommand(&cmd, 1, 1); |
| break; |
| } |
| } |
| end_ar_command: |
| if( cmd.db!=pState->db ){ |
| close_db(cmd.db); |
| } |
| sqlite3_free(cmd.zSrcTable); |
| |
| return rc; |
| } |
| /* End of the ".archive" or ".ar" command logic |
| **********************************************************************************/ |
| #endif /* !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB) */ |
| |
| |
| /* |
| ** If an input line begins with "." then invoke this routine to |
| ** process that line. |
| ** |
| ** Return 1 on error, 2 to exit, and 0 otherwise. |
| */ |
| static int do_meta_command(char *zLine, ShellState *p){ |
| int h = 1; |
| int nArg = 0; |
| int n, c; |
| int rc = 0; |
| char *azArg[50]; |
| |
| #ifndef SQLITE_OMIT_VIRTUALTABLE |
| if( p->expert.pExpert ){ |
| expertFinish(p, 1, 0); |
| } |
| #endif |
| |
| /* Parse the input line into tokens. |
| */ |
| while( zLine[h] && nArg<ArraySize(azArg) ){ |
| while( IsSpace(zLine[h]) ){ h++; } |
| if( zLine[h]==0 ) break; |
| if( zLine[h]=='\'' || zLine[h]=='"' ){ |
| int delim = zLine[h++]; |
| azArg[nArg++] = &zLine[h]; |
| while( zLine[h] && zLine[h]!=delim ){ |
| if( zLine[h]=='\\' && delim=='"' && zLine[h+1]!=0 ) h++; |
| h++; |
| } |
| if( zLine[h]==delim ){ |
| zLine[h++] = 0; |
| } |
| if( delim=='"' ) resolve_backslashes(azArg[nArg-1]); |
| }else{ |
| azArg[nArg++] = &zLine[h]; |
| while( zLine[h] && !IsSpace(zLine[h]) ){ h++; } |
| if( zLine[h] ) zLine[h++] = 0; |
| resolve_backslashes(azArg[nArg-1]); |
| } |
| } |
| |
| /* Process the input line. |
| */ |
| if( nArg==0 ) return 0; /* no tokens, no error */ |
| n = strlen30(azArg[0]); |
| c = azArg[0][0]; |
| clearTempFile(p); |
| |
| #ifndef SQLITE_OMIT_AUTHORIZATION |
| if( c=='a' && strncmp(azArg[0], "auth", n)==0 ){ |
| if( nArg!=2 ){ |
| raw_printf(stderr, "Usage: .auth ON|OFF\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| open_db(p, 0); |
| if( booleanValue(azArg[1]) ){ |
| sqlite3_set_authorizer(p->db, shellAuth, p); |
| }else{ |
| sqlite3_set_authorizer(p->db, 0, 0); |
| } |
| }else |
| #endif |
| |
| #if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB) |
| if( c=='a' && strncmp(azArg[0], "archive", n)==0 ){ |
| open_db(p, 0); |
| rc = arDotCommand(p, 0, azArg, nArg); |
| }else |
| #endif |
| |
| if( (c=='b' && n>=3 && strncmp(azArg[0], "backup", n)==0) |
| || (c=='s' && n>=3 && strncmp(azArg[0], "save", n)==0) |
| ){ |
| const char *zDestFile = 0; |
| const char *zDb = 0; |
| sqlite3 *pDest; |
| sqlite3_backup *pBackup; |
| int j; |
| int bAsync = 0; |
| const char *zVfs = 0; |
| for(j=1; j<nArg; j++){ |
| const char *z = azArg[j]; |
| if( z[0]=='-' ){ |
| if( z[1]=='-' ) z++; |
| if( strcmp(z, "-append")==0 ){ |
| zVfs = "apndvfs"; |
| }else |
| if( strcmp(z, "-async")==0 ){ |
| bAsync = 1; |
| }else |
| { |
| utf8_printf(stderr, "unknown option: %s\n", azArg[j]); |
| return 1; |
| } |
| }else if( zDestFile==0 ){ |
| zDestFile = azArg[j]; |
| }else if( zDb==0 ){ |
| zDb = zDestFile; |
| zDestFile = azArg[j]; |
| }else{ |
| raw_printf(stderr, "Usage: .backup ?DB? ?OPTIONS? FILENAME\n"); |
| return 1; |
| } |
| } |
| if( zDestFile==0 ){ |
| raw_printf(stderr, "missing FILENAME argument on .backup\n"); |
| return 1; |
| } |
| if( zDb==0 ) zDb = "main"; |
| rc = sqlite3_open_v2(zDestFile, &pDest, |
| SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE, zVfs); |
| if( rc!=SQLITE_OK ){ |
| utf8_printf(stderr, "Error: cannot open \"%s\"\n", zDestFile); |
| close_db(pDest); |
| return 1; |
| } |
| if( bAsync ){ |
| sqlite3_exec(pDest, "PRAGMA synchronous=OFF; PRAGMA journal_mode=OFF;", |
| 0, 0, 0); |
| } |
| open_db(p, 0); |
| pBackup = sqlite3_backup_init(pDest, "main", p->db, zDb); |
| if( pBackup==0 ){ |
| utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(pDest)); |
| close_db(pDest); |
| return 1; |
| } |
| while( (rc = sqlite3_backup_step(pBackup,100))==SQLITE_OK ){} |
| sqlite3_backup_finish(pBackup); |
| if( rc==SQLITE_DONE ){ |
| rc = 0; |
| }else{ |
| utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(pDest)); |
| rc = 1; |
| } |
| close_db(pDest); |
| }else |
| |
| if( c=='b' && n>=3 && strncmp(azArg[0], "bail", n)==0 ){ |
| if( nArg==2 ){ |
| bail_on_error = booleanValue(azArg[1]); |
| }else{ |
| raw_printf(stderr, "Usage: .bail on|off\n"); |
| rc = 1; |
| } |
| }else |
| |
| if( c=='b' && n>=3 && strncmp(azArg[0], "binary", n)==0 ){ |
| if( nArg==2 ){ |
| if( booleanValue(azArg[1]) ){ |
| setBinaryMode(p->out, 1); |
| }else{ |
| setTextMode(p->out, 1); |
| } |
| }else{ |
| raw_printf(stderr, "Usage: .binary on|off\n"); |
| rc = 1; |
| } |
| }else |
| |
| if( c=='c' && strcmp(azArg[0],"cd")==0 ){ |
| if( nArg==2 ){ |
| #if defined(_WIN32) || defined(WIN32) |
| wchar_t *z = sqlite3_win32_utf8_to_unicode(azArg[1]); |
| rc = !SetCurrentDirectoryW(z); |
| sqlite3_free(z); |
| #else |
| rc = chdir(azArg[1]); |
| #endif |
| if( rc ){ |
| utf8_printf(stderr, "Cannot change to directory \"%s\"\n", azArg[1]); |
| rc = 1; |
| } |
| }else{ |
| raw_printf(stderr, "Usage: .cd DIRECTORY\n"); |
| rc = 1; |
| } |
| }else |
| |
| /* The undocumented ".breakpoint" command causes a call to the no-op |
| ** routine named test_breakpoint(). |
| */ |
| if( c=='b' && n>=3 && strncmp(azArg[0], "breakpoint", n)==0 ){ |
| test_breakpoint(); |
| }else |
| |
| if( c=='c' && n>=3 && strncmp(azArg[0], "changes", n)==0 ){ |
| if( nArg==2 ){ |
| setOrClearFlag(p, SHFLG_CountChanges, azArg[1]); |
| }else{ |
| raw_printf(stderr, "Usage: .changes on|off\n"); |
| rc = 1; |
| } |
| }else |
| |
| /* Cancel output redirection, if it is currently set (by .testcase) |
| ** Then read the content of the testcase-out.txt file and compare against |
| ** azArg[1]. If there are differences, report an error and exit. |
| */ |
| if( c=='c' && n>=3 && strncmp(azArg[0], "check", n)==0 ){ |
| char *zRes = 0; |
| output_reset(p); |
| if( nArg!=2 ){ |
| raw_printf(stderr, "Usage: .check GLOB-PATTERN\n"); |
| rc = 2; |
| }else if( (zRes = readFile("testcase-out.txt", 0))==0 ){ |
| raw_printf(stderr, "Error: cannot read 'testcase-out.txt'\n"); |
| rc = 2; |
| }else if( testcase_glob(azArg[1],zRes)==0 ){ |
| utf8_printf(stderr, |
| "testcase-%s FAILED\n Expected: [%s]\n Got: [%s]\n", |
| p->zTestcase, azArg[1], zRes); |
| rc = 1; |
| }else{ |
| utf8_printf(stdout, "testcase-%s ok\n", p->zTestcase); |
| p->nCheck++; |
| } |
| sqlite3_free(zRes); |
| }else |
| |
| if( c=='c' && strncmp(azArg[0], "clone", n)==0 ){ |
| if( nArg==2 ){ |
| tryToClone(p, azArg[1]); |
| }else{ |
| raw_printf(stderr, "Usage: .clone FILENAME\n"); |
| rc = 1; |
| } |
| }else |
| |
| if( c=='d' && n>1 && strncmp(azArg[0], "databases", n)==0 ){ |
| ShellState data; |
| char *zErrMsg = 0; |
| open_db(p, 0); |
| memcpy(&data, p, sizeof(data)); |
| data.showHeader = 0; |
| data.cMode = data.mode = MODE_List; |
| sqlite3_snprintf(sizeof(data.colSeparator),data.colSeparator,": "); |
| data.cnt = 0; |
| sqlite3_exec(p->db, "SELECT name, file FROM pragma_database_list", |
| callback, &data, &zErrMsg); |
| if( zErrMsg ){ |
| utf8_printf(stderr,"Error: %s\n", zErrMsg); |
| sqlite3_free(zErrMsg); |
| rc = 1; |
| } |
| }else |
| |
| if( c=='d' && n>=3 && strncmp(azArg[0], "dbconfig", n)==0 ){ |
| static const struct DbConfigChoices { |
| const char *zName; |
| int op; |
| } aDbConfig[] = { |
| { "enable_fkey", SQLITE_DBCONFIG_ENABLE_FKEY }, |
| { "enable_trigger", SQLITE_DBCONFIG_ENABLE_TRIGGER }, |
| { "fts3_tokenizer", SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER }, |
| { "load_extension", SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION }, |
| { "no_ckpt_on_close", SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE }, |
| { "enable_qpsg", SQLITE_DBCONFIG_ENABLE_QPSG }, |
| { "trigger_eqp", SQLITE_DBCONFIG_TRIGGER_EQP }, |
| { "reset_database", SQLITE_DBCONFIG_RESET_DATABASE }, |
| { "defensive", SQLITE_DBCONFIG_DEFENSIVE }, |
| }; |
| int ii, v; |
| open_db(p, 0); |
| for(ii=0; ii<ArraySize(aDbConfig); ii++){ |
| if( nArg>1 && strcmp(azArg[1], aDbConfig[ii].zName)!=0 ) continue; |
| if( nArg>=3 ){ |
| sqlite3_db_config(p->db, aDbConfig[ii].op, booleanValue(azArg[2]), 0); |
| } |
| sqlite3_db_config(p->db, aDbConfig[ii].op, -1, &v); |
| utf8_printf(p->out, "%18s %s\n", aDbConfig[ii].zName, v ? "on" : "off"); |
| if( nArg>1 ) break; |
| } |
| if( nArg>1 && ii==ArraySize(aDbConfig) ){ |
| utf8_printf(stderr, "Error: unknown dbconfig \"%s\"\n", azArg[1]); |
| utf8_printf(stderr, "Enter \".dbconfig\" with no arguments for a list\n"); |
| } |
| }else |
| |
| if( c=='d' && n>=3 && strncmp(azArg[0], "dbinfo", n)==0 ){ |
| rc = shell_dbinfo_command(p, nArg, azArg); |
| }else |
| |
| if( c=='d' && strncmp(azArg[0], "dump", n)==0 ){ |
| const char *zLike = 0; |
| int i; |
| int savedShowHeader = p->showHeader; |
| int savedShellFlags = p->shellFlgs; |
| ShellClearFlag(p, SHFLG_PreserveRowid|SHFLG_Newlines|SHFLG_Echo); |
| for(i=1; i<nArg; i++){ |
| if( azArg[i][0]=='-' ){ |
| const char *z = azArg[i]+1; |
| if( z[0]=='-' ) z++; |
| if( strcmp(z,"preserve-rowids")==0 ){ |
| #ifdef SQLITE_OMIT_VIRTUALTABLE |
| raw_printf(stderr, "The --preserve-rowids option is not compatible" |
| " with SQLITE_OMIT_VIRTUALTABLE\n"); |
| rc = 1; |
| goto meta_command_exit; |
| #else |
| ShellSetFlag(p, SHFLG_PreserveRowid); |
| #endif |
| }else |
| if( strcmp(z,"newlines")==0 ){ |
| ShellSetFlag(p, SHFLG_Newlines); |
| }else |
| { |
| raw_printf(stderr, "Unknown option \"%s\" on \".dump\"\n", azArg[i]); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| }else if( zLike ){ |
| raw_printf(stderr, "Usage: .dump ?--preserve-rowids? " |
| "?--newlines? ?LIKE-PATTERN?\n"); |
| rc = 1; |
| goto meta_command_exit; |
| }else{ |
| zLike = azArg[i]; |
| } |
| } |
| open_db(p, 0); |
| /* When playing back a "dump", the content might appear in an order |
| ** which causes immediate foreign key constraints to be violated. |
| ** So disable foreign-key constraint enforcement to prevent problems. */ |
| raw_printf(p->out, "PRAGMA foreign_keys=OFF;\n"); |
| raw_printf(p->out, "BEGIN TRANSACTION;\n"); |
| p->writableSchema = 0; |
| p->showHeader = 0; |
| /* Set writable_schema=ON since doing so forces SQLite to initialize |
| ** as much of the schema as it can even if the sqlite_master table is |
| ** corrupt. */ |
| sqlite3_exec(p->db, "SAVEPOINT dump; PRAGMA writable_schema=ON", 0, 0, 0); |
| p->nErr = 0; |
| if( zLike==0 ){ |
| run_schema_dump_query(p, |
| "SELECT name, type, sql FROM sqlite_master " |
| "WHERE sql NOT NULL AND type=='table' AND name!='sqlite_sequence'" |
| ); |
| run_schema_dump_query(p, |
| "SELECT name, type, sql FROM sqlite_master " |
| "WHERE name=='sqlite_sequence'" |
| ); |
| run_table_dump_query(p, |
| "SELECT sql FROM sqlite_master " |
| "WHERE sql NOT NULL AND type IN ('index','trigger','view')", 0 |
| ); |
| }else{ |
| char *zSql; |
| zSql = sqlite3_mprintf( |
| "SELECT name, type, sql FROM sqlite_master " |
| "WHERE tbl_name LIKE %Q AND type=='table'" |
| " AND sql NOT NULL", zLike); |
| run_schema_dump_query(p,zSql); |
| sqlite3_free(zSql); |
| zSql = sqlite3_mprintf( |
| "SELECT sql FROM sqlite_master " |
| "WHERE sql NOT NULL" |
| " AND type IN ('index','trigger','view')" |
| " AND tbl_name LIKE %Q", zLike); |
| run_table_dump_query(p, zSql, 0); |
| sqlite3_free(zSql); |
| } |
| if( p->writableSchema ){ |
| raw_printf(p->out, "PRAGMA writable_schema=OFF;\n"); |
| p->writableSchema = 0; |
| } |
| sqlite3_exec(p->db, "PRAGMA writable_schema=OFF;", 0, 0, 0); |
| sqlite3_exec(p->db, "RELEASE dump;", 0, 0, 0); |
| raw_printf(p->out, p->nErr ? "ROLLBACK; -- due to errors\n" : "COMMIT;\n"); |
| p->showHeader = savedShowHeader; |
| p->shellFlgs = savedShellFlags; |
| }else |
| |
| if( c=='e' && strncmp(azArg[0], "echo", n)==0 ){ |
| if( nArg==2 ){ |
| setOrClearFlag(p, SHFLG_Echo, azArg[1]); |
| }else{ |
| raw_printf(stderr, "Usage: .echo on|off\n"); |
| rc = 1; |
| } |
| }else |
| |
| if( c=='e' && strncmp(azArg[0], "eqp", n)==0 ){ |
| if( nArg==2 ){ |
| p->autoEQPtest = 0; |
| if( p->autoEQPtrace ){ |
| if( p->db ) sqlite3_exec(p->db, "PRAGMA vdbe_trace=OFF;", 0, 0, 0); |
| p->autoEQPtrace = 0; |
| } |
| if( strcmp(azArg[1],"full")==0 ){ |
| p->autoEQP = AUTOEQP_full; |
| }else if( strcmp(azArg[1],"trigger")==0 ){ |
| p->autoEQP = AUTOEQP_trigger; |
| #ifdef SQLITE_DEBUG |
| }else if( strcmp(azArg[1],"test")==0 ){ |
| p->autoEQP = AUTOEQP_on; |
| p->autoEQPtest = 1; |
| }else if( strcmp(azArg[1],"trace")==0 ){ |
| p->autoEQP = AUTOEQP_full; |
| p->autoEQPtrace = 1; |
| open_db(p, 0); |
| sqlite3_exec(p->db, "SELECT name FROM sqlite_master LIMIT 1", 0, 0, 0); |
| sqlite3_exec(p->db, "PRAGMA vdbe_trace=ON;", 0, 0, 0); |
| #endif |
| }else{ |
| p->autoEQP = (u8)booleanValue(azArg[1]); |
| } |
| }else{ |
| raw_printf(stderr, "Usage: .eqp off|on|trace|trigger|full\n"); |
| rc = 1; |
| } |
| }else |
| |
| if( c=='e' && strncmp(azArg[0], "exit", n)==0 ){ |
| if( nArg>1 && (rc = (int)integerValue(azArg[1]))!=0 ) exit(rc); |
| rc = 2; |
| }else |
| |
| /* The ".explain" command is automatic now. It is largely pointless. It |
| ** retained purely for backwards compatibility */ |
| if( c=='e' && strncmp(azArg[0], "explain", n)==0 ){ |
| int val = 1; |
| if( nArg>=2 ){ |
| if( strcmp(azArg[1],"auto")==0 ){ |
| val = 99; |
| }else{ |
| val = booleanValue(azArg[1]); |
| } |
| } |
| if( val==1 && p->mode!=MODE_Explain ){ |
| p->normalMode = p->mode; |
| p->mode = MODE_Explain; |
| p->autoExplain = 0; |
| }else if( val==0 ){ |
| if( p->mode==MODE_Explain ) p->mode = p->normalMode; |
| p->autoExplain = 0; |
| }else if( val==99 ){ |
| if( p->mode==MODE_Explain ) p->mode = p->normalMode; |
| p->autoExplain = 1; |
| } |
| }else |
| |
| #ifndef SQLITE_OMIT_VIRTUALTABLE |
| if( c=='e' && strncmp(azArg[0], "expert", n)==0 ){ |
| open_db(p, 0); |
| expertDotCommand(p, azArg, nArg); |
| }else |
| #endif |
| |
| if( c=='f' && strncmp(azArg[0], "fullschema", n)==0 ){ |
| ShellState data; |
| char *zErrMsg = 0; |
| int doStats = 0; |
| memcpy(&data, p, sizeof(data)); |
| data.showHeader = 0; |
| data.cMode = data.mode = MODE_Semi; |
| if( nArg==2 && optionMatch(azArg[1], "indent") ){ |
| data.cMode = data.mode = MODE_Pretty; |
| nArg = 1; |
| } |
| if( nArg!=1 ){ |
| raw_printf(stderr, "Usage: .fullschema ?--indent?\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| open_db(p, 0); |
| rc = sqlite3_exec(p->db, |
| "SELECT sql FROM" |
| " (SELECT sql sql, type type, tbl_name tbl_name, name name, rowid x" |
| " FROM sqlite_master UNION ALL" |
| " SELECT sql, type, tbl_name, name, rowid FROM sqlite_temp_master) " |
| "WHERE type!='meta' AND sql NOTNULL AND name NOT LIKE 'sqlite_%' " |
| "ORDER BY rowid", |
| callback, &data, &zErrMsg |
| ); |
| if( rc==SQLITE_OK ){ |
| sqlite3_stmt *pStmt; |
| rc = sqlite3_prepare_v2(p->db, |
| "SELECT rowid FROM sqlite_master" |
| " WHERE name GLOB 'sqlite_stat[134]'", |
| -1, &pStmt, 0); |
| doStats = sqlite3_step(pStmt)==SQLITE_ROW; |
| sqlite3_finalize(pStmt); |
| } |
| if( doStats==0 ){ |
| raw_printf(p->out, "/* No STAT tables available */\n"); |
| }else{ |
| raw_printf(p->out, "ANALYZE sqlite_master;\n"); |
| sqlite3_exec(p->db, "SELECT 'ANALYZE sqlite_master'", |
| callback, &data, &zErrMsg); |
| data.cMode = data.mode = MODE_Insert; |
| data.zDestTable = "sqlite_stat1"; |
| shell_exec(&data, "SELECT * FROM sqlite_stat1", &zErrMsg); |
| data.zDestTable = "sqlite_stat3"; |
| shell_exec(&data, "SELECT * FROM sqlite_stat3", &zErrMsg); |
| data.zDestTable = "sqlite_stat4"; |
| shell_exec(&data, "SELECT * FROM sqlite_stat4", &zErrMsg); |
| raw_printf(p->out, "ANALYZE sqlite_master;\n"); |
| } |
| }else |
| |
| if( c=='h' && strncmp(azArg[0], "headers", n)==0 ){ |
| if( nArg==2 ){ |
| p->showHeader = booleanValue(azArg[1]); |
| }else{ |
| raw_printf(stderr, "Usage: .headers on|off\n"); |
| rc = 1; |
| } |
| }else |
| |
| if( c=='h' && strncmp(azArg[0], "help", n)==0 ){ |
| if( nArg>=2 ){ |
| n = showHelp(p->out, azArg[1]); |
| if( n==0 ){ |
| utf8_printf(p->out, "Nothing matches '%s'\n", azArg[1]); |
| } |
| }else{ |
| showHelp(p->out, 0); |
| } |
| }else |
| |
| if( c=='i' && strncmp(azArg[0], "import", n)==0 ){ |
| char *zTable; /* Insert data into this table */ |
| char *zFile; /* Name of file to extra content from */ |
| sqlite3_stmt *pStmt = NULL; /* A statement */ |
| int nCol; /* Number of columns in the table */ |
| int nByte; /* Number of bytes in an SQL string */ |
| int i, j; /* Loop counters */ |
| int needCommit; /* True to COMMIT or ROLLBACK at end */ |
| int nSep; /* Number of bytes in p->colSeparator[] */ |
| char *zSql; /* An SQL statement */ |
| ImportCtx sCtx; /* Reader context */ |
| char *(SQLITE_CDECL *xRead)(ImportCtx*); /* Func to read one value */ |
| int (SQLITE_CDECL *xCloser)(FILE*); /* Func to close file */ |
| |
| if( nArg!=3 ){ |
| raw_printf(stderr, "Usage: .import FILE TABLE\n"); |
| goto meta_command_exit; |
| } |
| zFile = azArg[1]; |
| zTable = azArg[2]; |
| seenInterrupt = 0; |
| memset(&sCtx, 0, sizeof(sCtx)); |
| open_db(p, 0); |
| nSep = strlen30(p->colSeparator); |
| if( nSep==0 ){ |
| raw_printf(stderr, |
| "Error: non-null column separator required for import\n"); |
| return 1; |
| } |
| if( nSep>1 ){ |
| raw_printf(stderr, "Error: multi-character column separators not allowed" |
| " for import\n"); |
| return 1; |
| } |
| nSep = strlen30(p->rowSeparator); |
| if( nSep==0 ){ |
| raw_printf(stderr, "Error: non-null row separator required for import\n"); |
| return 1; |
| } |
| if( nSep==2 && p->mode==MODE_Csv && strcmp(p->rowSeparator, SEP_CrLf)==0 ){ |
| /* When importing CSV (only), if the row separator is set to the |
| ** default output row separator, change it to the default input |
| ** row separator. This avoids having to maintain different input |
| ** and output row separators. */ |
| sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row); |
| nSep = strlen30(p->rowSeparator); |
| } |
| if( nSep>1 ){ |
| raw_printf(stderr, "Error: multi-character row separators not allowed" |
| " for import\n"); |
| return 1; |
| } |
| sCtx.zFile = zFile; |
| sCtx.nLine = 1; |
| if( sCtx.zFile[0]=='|' ){ |
| #ifdef SQLITE_OMIT_POPEN |
| raw_printf(stderr, "Error: pipes are not supported in this OS\n"); |
| return 1; |
| #else |
| sCtx.in = popen(sCtx.zFile+1, "r"); |
| sCtx.zFile = "<pipe>"; |
| xCloser = pclose; |
| #endif |
| }else{ |
| sCtx.in = fopen(sCtx.zFile, "rb"); |
| xCloser = fclose; |
| } |
| if( p->mode==MODE_Ascii ){ |
| xRead = ascii_read_one_field; |
| }else{ |
| xRead = csv_read_one_field; |
| } |
| if( sCtx.in==0 ){ |
| utf8_printf(stderr, "Error: cannot open \"%s\"\n", zFile); |
| return 1; |
| } |
| sCtx.cColSep = p->colSeparator[0]; |
| sCtx.cRowSep = p->rowSeparator[0]; |
| zSql = sqlite3_mprintf("SELECT * FROM %s", zTable); |
| if( zSql==0 ){ |
| xCloser(sCtx.in); |
| shell_out_of_memory(); |
| } |
| nByte = strlen30(zSql); |
| rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0); |
| import_append_char(&sCtx, 0); /* To ensure sCtx.z is allocated */ |
| if( rc && sqlite3_strglob("no such table: *", sqlite3_errmsg(p->db))==0 ){ |
| char *zCreate = sqlite3_mprintf("CREATE TABLE %s", zTable); |
| char cSep = '('; |
| while( xRead(&sCtx) ){ |
| zCreate = sqlite3_mprintf("%z%c\n \"%w\" TEXT", zCreate, cSep, sCtx.z); |
| cSep = ','; |
| if( sCtx.cTerm!=sCtx.cColSep ) break; |
| } |
| if( cSep=='(' ){ |
| sqlite3_free(zCreate); |
| sqlite3_free(sCtx.z); |
| xCloser(sCtx.in); |
| utf8_printf(stderr,"%s: empty file\n", sCtx.zFile); |
| return 1; |
| } |
| zCreate = sqlite3_mprintf("%z\n)", zCreate); |
| rc = sqlite3_exec(p->db, zCreate, 0, 0, 0); |
| sqlite3_free(zCreate); |
| if( rc ){ |
| utf8_printf(stderr, "CREATE TABLE %s(...) failed: %s\n", zTable, |
| sqlite3_errmsg(p->db)); |
| sqlite3_free(sCtx.z); |
| xCloser(sCtx.in); |
| return 1; |
| } |
| rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0); |
| } |
| sqlite3_free(zSql); |
| if( rc ){ |
| if (pStmt) sqlite3_finalize(pStmt); |
| utf8_printf(stderr,"Error: %s\n", sqlite3_errmsg(p->db)); |
| xCloser(sCtx.in); |
| return 1; |
| } |
| nCol = sqlite3_column_count(pStmt); |
| sqlite3_finalize(pStmt); |
| pStmt = 0; |
| if( nCol==0 ) return 0; /* no columns, no error */ |
| zSql = sqlite3_malloc64( nByte*2 + 20 + nCol*2 ); |
| if( zSql==0 ){ |
| xCloser(sCtx.in); |
| shell_out_of_memory(); |
| } |
| sqlite3_snprintf(nByte+20, zSql, "INSERT INTO \"%w\" VALUES(?", zTable); |
| j = strlen30(zSql); |
| for(i=1; i<nCol; i++){ |
| zSql[j++] = ','; |
| zSql[j++] = '?'; |
| } |
| zSql[j++] = ')'; |
| zSql[j] = 0; |
| rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0); |
| sqlite3_free(zSql); |
| if( rc ){ |
| utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(p->db)); |
| if (pStmt) sqlite3_finalize(pStmt); |
| xCloser(sCtx.in); |
| return 1; |
| } |
| needCommit = sqlite3_get_autocommit(p->db); |
| if( needCommit ) sqlite3_exec(p->db, "BEGIN", 0, 0, 0); |
| do{ |
| int startLine = sCtx.nLine; |
| for(i=0; i<nCol; i++){ |
| char *z = xRead(&sCtx); |
| /* |
| ** Did we reach end-of-file before finding any columns? |
| ** If so, stop instead of NULL filling the remaining columns. |
| */ |
| if( z==0 && i==0 ) break; |
| /* |
| ** Did we reach end-of-file OR end-of-line before finding any |
| ** columns in ASCII mode? If so, stop instead of NULL filling |
| ** the remaining columns. |
| */ |
| if( p->mode==MODE_Ascii && (z==0 || z[0]==0) && i==0 ) break; |
| sqlite3_bind_text(pStmt, i+1, z, -1, SQLITE_TRANSIENT); |
| if( i<nCol-1 && sCtx.cTerm!=sCtx.cColSep ){ |
| utf8_printf(stderr, "%s:%d: expected %d columns but found %d - " |
| "filling the rest with NULL\n", |
| sCtx.zFile, startLine, nCol, i+1); |
| i += 2; |
| while( i<=nCol ){ sqlite3_bind_null(pStmt, i); i++; } |
| } |
| } |
| if( sCtx.cTerm==sCtx.cColSep ){ |
| do{ |
| xRead(&sCtx); |
| i++; |
| }while( sCtx.cTerm==sCtx.cColSep ); |
| utf8_printf(stderr, "%s:%d: expected %d columns but found %d - " |
| "extras ignored\n", |
| sCtx.zFile, startLine, nCol, i); |
| } |
| if( i>=nCol ){ |
| sqlite3_step(pStmt); |
| rc = sqlite3_reset(pStmt); |
| if( rc!=SQLITE_OK ){ |
| utf8_printf(stderr, "%s:%d: INSERT failed: %s\n", sCtx.zFile, |
| startLine, sqlite3_errmsg(p->db)); |
| } |
| } |
| }while( sCtx.cTerm!=EOF ); |
| |
| xCloser(sCtx.in); |
| sqlite3_free(sCtx.z); |
| sqlite3_finalize(pStmt); |
| if( needCommit ) sqlite3_exec(p->db, "COMMIT", 0, 0, 0); |
| }else |
| |
| #ifndef SQLITE_UNTESTABLE |
| if( c=='i' && strncmp(azArg[0], "imposter", n)==0 ){ |
| char *zSql; |
| char *zCollist = 0; |
| sqlite3_stmt *pStmt; |
| int tnum = 0; |
| int i; |
| if( !(nArg==3 || (nArg==2 && sqlite3_stricmp(azArg[1],"off")==0)) ){ |
| utf8_printf(stderr, "Usage: .imposter INDEX IMPOSTER\n" |
| " .imposter off\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| open_db(p, 0); |
| if( nArg==2 ){ |
| sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->db, "main", 0, 1); |
| goto meta_command_exit; |
| } |
| zSql = sqlite3_mprintf("SELECT rootpage FROM sqlite_master" |
| " WHERE name='%q' AND type='index'", azArg[1]); |
| sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0); |
| sqlite3_free(zSql); |
| if( sqlite3_step(pStmt)==SQLITE_ROW ){ |
| tnum = sqlite3_column_int(pStmt, 0); |
| } |
| sqlite3_finalize(pStmt); |
| if( tnum==0 ){ |
| utf8_printf(stderr, "no such index: \"%s\"\n", azArg[1]); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| zSql = sqlite3_mprintf("PRAGMA index_xinfo='%q'", azArg[1]); |
| rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0); |
| sqlite3_free(zSql); |
| i = 0; |
| while( sqlite3_step(pStmt)==SQLITE_ROW ){ |
| char zLabel[20]; |
| const char *zCol = (const char*)sqlite3_column_text(pStmt,2); |
| i++; |
| if( zCol==0 ){ |
| if( sqlite3_column_int(pStmt,1)==-1 ){ |
| zCol = "_ROWID_"; |
| }else{ |
| sqlite3_snprintf(sizeof(zLabel),zLabel,"expr%d",i); |
| zCol = zLabel; |
| } |
| } |
| if( zCollist==0 ){ |
| zCollist = sqlite3_mprintf("\"%w\"", zCol); |
| }else{ |
| zCollist = sqlite3_mprintf("%z,\"%w\"", zCollist, zCol); |
| } |
| } |
| sqlite3_finalize(pStmt); |
| zSql = sqlite3_mprintf( |
| "CREATE TABLE \"%w\"(%s,PRIMARY KEY(%s))WITHOUT ROWID", |
| azArg[2], zCollist, zCollist); |
| sqlite3_free(zCollist); |
| rc = sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->db, "main", 1, tnum); |
| if( rc==SQLITE_OK ){ |
| rc = sqlite3_exec(p->db, zSql, 0, 0, 0); |
| sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->db, "main", 0, 0); |
| if( rc ){ |
| utf8_printf(stderr, "Error in [%s]: %s\n", zSql, sqlite3_errmsg(p->db)); |
| }else{ |
| utf8_printf(stdout, "%s;\n", zSql); |
| raw_printf(stdout, |
| "WARNING: writing to an imposter table will corrupt the index!\n" |
| ); |
| } |
| }else{ |
| raw_printf(stderr, "SQLITE_TESTCTRL_IMPOSTER returns %d\n", rc); |
| rc = 1; |
| } |
| sqlite3_free(zSql); |
| }else |
| #endif /* !defined(SQLITE_OMIT_TEST_CONTROL) */ |
| |
| #ifdef SQLITE_ENABLE_IOTRACE |
| if( c=='i' && strncmp(azArg[0], "iotrace", n)==0 ){ |
| SQLITE_API extern void (SQLITE_CDECL *sqlite3IoTrace)(const char*, ...); |
| if( iotrace && iotrace!=stdout ) fclose(iotrace); |
| iotrace = 0; |
| if( nArg<2 ){ |
| sqlite3IoTrace = 0; |
| }else if( strcmp(azArg[1], "-")==0 ){ |
| sqlite3IoTrace = iotracePrintf; |
| iotrace = stdout; |
| }else{ |
| iotrace = fopen(azArg[1], "w"); |
| if( iotrace==0 ){ |
| utf8_printf(stderr, "Error: cannot open \"%s\"\n", azArg[1]); |
| sqlite3IoTrace = 0; |
| rc = 1; |
| }else{ |
| sqlite3IoTrace = iotracePrintf; |
| } |
| } |
| }else |
| #endif |
| |
| if( c=='l' && n>=5 && strncmp(azArg[0], "limits", n)==0 ){ |
| static const struct { |
| const char *zLimitName; /* Name of a limit */ |
| int limitCode; /* Integer code for that limit */ |
| } aLimit[] = { |
| { "length", SQLITE_LIMIT_LENGTH }, |
| { "sql_length", SQLITE_LIMIT_SQL_LENGTH }, |
| { "column", SQLITE_LIMIT_COLUMN }, |
| { "expr_depth", SQLITE_LIMIT_EXPR_DEPTH }, |
| { "compound_select", SQLITE_LIMIT_COMPOUND_SELECT }, |
| { "vdbe_op", SQLITE_LIMIT_VDBE_OP }, |
| { "function_arg", SQLITE_LIMIT_FUNCTION_ARG }, |
| { "attached", SQLITE_LIMIT_ATTACHED }, |
| { "like_pattern_length", SQLITE_LIMIT_LIKE_PATTERN_LENGTH }, |
| { "variable_number", SQLITE_LIMIT_VARIABLE_NUMBER }, |
| { "trigger_depth", SQLITE_LIMIT_TRIGGER_DEPTH }, |
| { "worker_threads", SQLITE_LIMIT_WORKER_THREADS }, |
| }; |
| int i, n2; |
| open_db(p, 0); |
| if( nArg==1 ){ |
| for(i=0; i<ArraySize(aLimit); i++){ |
| printf("%20s %d\n", aLimit[i].zLimitName, |
| sqlite3_limit(p->db, aLimit[i].limitCode, -1)); |
| } |
| }else if( nArg>3 ){ |
| raw_printf(stderr, "Usage: .limit NAME ?NEW-VALUE?\n"); |
| rc = 1; |
| goto meta_command_exit; |
| }else{ |
| int iLimit = -1; |
| n2 = strlen30(azArg[1]); |
| for(i=0; i<ArraySize(aLimit); i++){ |
| if( sqlite3_strnicmp(aLimit[i].zLimitName, azArg[1], n2)==0 ){ |
| if( iLimit<0 ){ |
| iLimit = i; |
| }else{ |
| utf8_printf(stderr, "ambiguous limit: \"%s\"\n", azArg[1]); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| } |
| } |
| if( iLimit<0 ){ |
| utf8_printf(stderr, "unknown limit: \"%s\"\n" |
| "enter \".limits\" with no arguments for a list.\n", |
| azArg[1]); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| if( nArg==3 ){ |
| sqlite3_limit(p->db, aLimit[iLimit].limitCode, |
| (int)integerValue(azArg[2])); |
| } |
| printf("%20s %d\n", aLimit[iLimit].zLimitName, |
| sqlite3_limit(p->db, aLimit[iLimit].limitCode, -1)); |
| } |
| }else |
| |
| if( c=='l' && n>2 && strncmp(azArg[0], "lint", n)==0 ){ |
| open_db(p, 0); |
| lintDotCommand(p, azArg, nArg); |
| }else |
| |
| #ifndef SQLITE_OMIT_LOAD_EXTENSION |
| if( c=='l' && strncmp(azArg[0], "load", n)==0 ){ |
| const char *zFile, *zProc; |
| char *zErrMsg = 0; |
| if( nArg<2 ){ |
| raw_printf(stderr, "Usage: .load FILE ?ENTRYPOINT?\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| zFile = azArg[1]; |
| zProc = nArg>=3 ? azArg[2] : 0; |
| open_db(p, 0); |
| rc = sqlite3_load_extension(p->db, zFile, zProc, &zErrMsg); |
| if( rc!=SQLITE_OK ){ |
| utf8_printf(stderr, "Error: %s\n", zErrMsg); |
| sqlite3_free(zErrMsg); |
| rc = 1; |
| } |
| }else |
| #endif |
| |
| if( c=='l' && strncmp(azArg[0], "log", n)==0 ){ |
| if( nArg!=2 ){ |
| raw_printf(stderr, "Usage: .log FILENAME\n"); |
| rc = 1; |
| }else{ |
| const char *zFile = azArg[1]; |
| output_file_close(p->pLog); |
| p->pLog = output_file_open(zFile, 0); |
| } |
| }else |
| |
| if( c=='m' && strncmp(azArg[0], "mode", n)==0 ){ |
| const char *zMode = nArg>=2 ? azArg[1] : ""; |
| int n2 = strlen30(zMode); |
| int c2 = zMode[0]; |
| if( c2=='l' && n2>2 && strncmp(azArg[1],"lines",n2)==0 ){ |
| p->mode = MODE_Line; |
| sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row); |
| }else if( c2=='c' && strncmp(azArg[1],"columns",n2)==0 ){ |
| p->mode = MODE_Column; |
| sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row); |
| }else if( c2=='l' && n2>2 && strncmp(azArg[1],"list",n2)==0 ){ |
| p->mode = MODE_List; |
| sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Column); |
| sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row); |
| }else if( c2=='h' && strncmp(azArg[1],"html",n2)==0 ){ |
| p->mode = MODE_Html; |
| }else if( c2=='t' && strncmp(azArg[1],"tcl",n2)==0 ){ |
| p->mode = MODE_Tcl; |
| sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Space); |
| sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row); |
| }else if( c2=='c' && strncmp(azArg[1],"csv",n2)==0 ){ |
| p->mode = MODE_Csv; |
| sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Comma); |
| sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_CrLf); |
| }else if( c2=='t' && strncmp(azArg[1],"tabs",n2)==0 ){ |
| p->mode = MODE_List; |
| sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Tab); |
| }else if( c2=='i' && strncmp(azArg[1],"insert",n2)==0 ){ |
| p->mode = MODE_Insert; |
| set_table_name(p, nArg>=3 ? azArg[2] : "table"); |
| }else if( c2=='q' && strncmp(azArg[1],"quote",n2)==0 ){ |
| p->mode = MODE_Quote; |
| }else if( c2=='a' && strncmp(azArg[1],"ascii",n2)==0 ){ |
| p->mode = MODE_Ascii; |
| sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Unit); |
| sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Record); |
| }else if( nArg==1 ){ |
| raw_printf(p->out, "current output mode: %s\n", modeDescr[p->mode]); |
| }else{ |
| raw_printf(stderr, "Error: mode should be one of: " |
| "ascii column csv html insert line list quote tabs tcl\n"); |
| rc = 1; |
| } |
| p->cMode = p->mode; |
| }else |
| |
| if( c=='n' && strncmp(azArg[0], "nullvalue", n)==0 ){ |
| if( nArg==2 ){ |
| sqlite3_snprintf(sizeof(p->nullValue), p->nullValue, |
| "%.*s", (int)ArraySize(p->nullValue)-1, azArg[1]); |
| }else{ |
| raw_printf(stderr, "Usage: .nullvalue STRING\n"); |
| rc = 1; |
| } |
| }else |
| |
| if( c=='o' && strncmp(azArg[0], "open", n)==0 && n>=2 ){ |
| char *zNewFilename; /* Name of the database file to open */ |
| int iName = 1; /* Index in azArg[] of the filename */ |
| int newFlag = 0; /* True to delete file before opening */ |
| /* Close the existing database */ |
| session_close_all(p); |
| close_db(p->db); |
| p->db = 0; |
| p->zDbFilename = 0; |
| sqlite3_free(p->zFreeOnClose); |
| p->zFreeOnClose = 0; |
| p->openMode = SHELL_OPEN_UNSPEC; |
| p->szMax = 0; |
| /* Check for command-line arguments */ |
| for(iName=1; iName<nArg && azArg[iName][0]=='-'; iName++){ |
| const char *z = azArg[iName]; |
| if( optionMatch(z,"new") ){ |
| newFlag = 1; |
| #ifdef SQLITE_HAVE_ZLIB |
| }else if( optionMatch(z, "zip") ){ |
| p->openMode = SHELL_OPEN_ZIPFILE; |
| #endif |
| }else if( optionMatch(z, "append") ){ |
| p->openMode = SHELL_OPEN_APPENDVFS; |
| }else if( optionMatch(z, "readonly") ){ |
| p->openMode = SHELL_OPEN_READONLY; |
| #ifdef SQLITE_ENABLE_DESERIALIZE |
| }else if( optionMatch(z, "deserialize") ){ |
| p->openMode = SHELL_OPEN_DESERIALIZE; |
| }else if( optionMatch(z, "hexdb") ){ |
| p->openMode = SHELL_OPEN_HEXDB; |
| }else if( optionMatch(z, "maxsize") && iName+1<nArg ){ |
| p->szMax = integerValue(azArg[++iName]); |
| #endif /* SQLITE_ENABLE_DESERIALIZE */ |
| }else if( z[0]=='-' ){ |
| utf8_printf(stderr, "unknown option: %s\n", z); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| } |
| /* If a filename is specified, try to open it first */ |
| zNewFilename = nArg>iName ? sqlite3_mprintf("%s", azArg[iName]) : 0; |
| if( zNewFilename || p->openMode==SHELL_OPEN_HEXDB ){ |
| if( newFlag ) shellDeleteFile(zNewFilename); |
| p->zDbFilename = zNewFilename; |
| open_db(p, OPEN_DB_KEEPALIVE); |
| if( p->db==0 ){ |
| utf8_printf(stderr, "Error: cannot open '%s'\n", zNewFilename); |
| sqlite3_free(zNewFilename); |
| }else{ |
| p->zFreeOnClose = zNewFilename; |
| } |
| } |
| if( p->db==0 ){ |
| /* As a fall-back open a TEMP database */ |
| p->zDbFilename = 0; |
| open_db(p, 0); |
| } |
| }else |
| |
| if( (c=='o' |
| && (strncmp(azArg[0], "output", n)==0||strncmp(azArg[0], "once", n)==0)) |
| || (c=='e' && n==5 && strcmp(azArg[0],"excel")==0) |
| ){ |
| const char *zFile = nArg>=2 ? azArg[1] : "stdout"; |
| int bTxtMode = 0; |
| if( azArg[0][0]=='e' ){ |
| /* Transform the ".excel" command into ".once -x" */ |
| nArg = 2; |
| azArg[0] = "once"; |
| zFile = azArg[1] = "-x"; |
| n = 4; |
| } |
| if( nArg>2 ){ |
| utf8_printf(stderr, "Usage: .%s [-e|-x|FILE]\n", azArg[0]); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| if( n>1 && strncmp(azArg[0], "once", n)==0 ){ |
| if( nArg<2 ){ |
| raw_printf(stderr, "Usage: .once (-e|-x|FILE)\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| p->outCount = 2; |
| }else{ |
| p->outCount = 0; |
| } |
| output_reset(p); |
| if( zFile[0]=='-' && zFile[1]=='-' ) zFile++; |
| #ifndef SQLITE_NOHAVE_SYSTEM |
| if( strcmp(zFile, "-e")==0 || strcmp(zFile, "-x")==0 ){ |
| p->doXdgOpen = 1; |
| outputModePush(p); |
| if( zFile[1]=='x' ){ |
| newTempFile(p, "csv"); |
| p->mode = MODE_Csv; |
| sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Comma); |
| sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_CrLf); |
| }else{ |
| newTempFile(p, "txt"); |
| bTxtMode = 1; |
| } |
| zFile = p->zTempFile; |
| } |
| #endif /* SQLITE_NOHAVE_SYSTEM */ |
| if( zFile[0]=='|' ){ |
| #ifdef SQLITE_OMIT_POPEN |
| raw_printf(stderr, "Error: pipes are not supported in this OS\n"); |
| rc = 1; |
| p->out = stdout; |
| #else |
| p->out = popen(zFile + 1, "w"); |
| if( p->out==0 ){ |
| utf8_printf(stderr,"Error: cannot open pipe \"%s\"\n", zFile + 1); |
| p->out = stdout; |
| rc = 1; |
| }else{ |
| sqlite3_snprintf(sizeof(p->outfile), p->outfile, "%s", zFile); |
| } |
| #endif |
| }else{ |
| p->out = output_file_open(zFile, bTxtMode); |
| if( p->out==0 ){ |
| if( strcmp(zFile,"off")!=0 ){ |
| utf8_printf(stderr,"Error: cannot write to \"%s\"\n", zFile); |
| } |
| p->out = stdout; |
| rc = 1; |
| } else { |
| sqlite3_snprintf(sizeof(p->outfile), p->outfile, "%s", zFile); |
| } |
| } |
| }else |
| |
| if( c=='p' && n>=3 && strncmp(azArg[0], "parameter", n)==0 ){ |
| open_db(p,0); |
| if( nArg<=1 ) goto parameter_syntax_error; |
| |
| /* .parameter clear |
| ** Clear all bind parameters by dropping the TEMP table that holds them. |
| */ |
| if( nArg==2 && strcmp(azArg[1],"clear")==0 ){ |
| int wrSchema = 0; |
| sqlite3_db_config(p->db, SQLITE_DBCONFIG_WRITABLE_SCHEMA, -1, &wrSchema); |
| sqlite3_db_config(p->db, SQLITE_DBCONFIG_WRITABLE_SCHEMA, 1, 0); |
| sqlite3_exec(p->db, "DROP TABLE IF EXISTS temp.sqlite_parameters;", |
| 0, 0, 0); |
| sqlite3_db_config(p->db, SQLITE_DBCONFIG_WRITABLE_SCHEMA, wrSchema, 0); |
| }else |
| |
| /* .parameter list |
| ** List all bind parameters. |
| */ |
| if( nArg==2 && strcmp(azArg[1],"list")==0 ){ |
| sqlite3_stmt *pStmt = 0; |
| int rx; |
| int len = 0; |
| rx = sqlite3_prepare_v2(p->db, |
| "SELECT max(length(key)) " |
| "FROM temp.sqlite_parameters;", -1, &pStmt, 0); |
| if( rx==SQLITE_OK && sqlite3_step(pStmt)==SQLITE_ROW ){ |
| len = sqlite3_column_int(pStmt, 0); |
| if( len>40 ) len = 40; |
| } |
| sqlite3_finalize(pStmt); |
| pStmt = 0; |
| if( len ){ |
| rx = sqlite3_prepare_v2(p->db, |
| "SELECT key, quote(value) " |
| "FROM temp.sqlite_parameters;", -1, &pStmt, 0); |
| while( sqlite3_step(pStmt)==SQLITE_ROW ){ |
| utf8_printf(p->out, "%-*s %s\n", len, sqlite3_column_text(pStmt,0), |
| sqlite3_column_text(pStmt,1)); |
| } |
| sqlite3_finalize(pStmt); |
| } |
| }else |
| |
| /* .parameter init |
| ** Make sure the TEMP table used to hold bind parameters exists. |
| ** Create it if necessary. |
| */ |
| if( nArg==2 && strcmp(azArg[1],"init")==0 ){ |
| bind_table_init(p); |
| }else |
| |
| /* .parameter set NAME VALUE |
| ** Set or reset a bind parameter. NAME should be the full parameter |
| ** name exactly as it appears in the query. (ex: $abc, @def). The |
| ** VALUE can be in either SQL literal notation, or if not it will be |
| ** understood to be a text string. |
| */ |
| if( nArg==4 && strcmp(azArg[1],"set")==0 ){ |
| int rx; |
| char *zSql; |
| sqlite3_stmt *pStmt; |
| const char *zKey = azArg[2]; |
| const char *zValue = azArg[3]; |
| bind_table_init(p); |
| zSql = sqlite3_mprintf( |
| "REPLACE INTO temp.sqlite_parameters(key,value)" |
| "VALUES(%Q,%s);", zKey, zValue); |
| if( zSql==0 ) shell_out_of_memory(); |
| pStmt = 0; |
| rx = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0); |
| sqlite3_free(zSql); |
| if( rx!=SQLITE_OK ){ |
| sqlite3_finalize(pStmt); |
| pStmt = 0; |
| zSql = sqlite3_mprintf( |
| "REPLACE INTO temp.sqlite_parameters(key,value)" |
| "VALUES(%Q,%Q);", zKey, zValue); |
| if( zSql==0 ) shell_out_of_memory(); |
| rx = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0); |
| sqlite3_free(zSql); |
| if( rx!=SQLITE_OK ){ |
| utf8_printf(p->out, "Error: %s\n", sqlite3_errmsg(p->db)); |
| sqlite3_finalize(pStmt); |
| pStmt = 0; |
| rc = 1; |
| } |
| } |
| sqlite3_step(pStmt); |
| sqlite3_finalize(pStmt); |
| }else |
| |
| /* .parameter unset NAME |
| ** Remove the NAME binding from the parameter binding table, if it |
| ** exists. |
| */ |
| if( nArg==3 && strcmp(azArg[1],"unset")==0 ){ |
| char *zSql = sqlite3_mprintf( |
| "DELETE FROM temp.sqlite_parameters WHERE key=%Q", azArg[2]); |
| if( zSql==0 ) shell_out_of_memory(); |
| sqlite3_exec(p->db, zSql, 0, 0, 0); |
| sqlite3_free(zSql); |
| }else |
| /* If no command name matches, show a syntax error */ |
| parameter_syntax_error: |
| showHelp(p->out, "parameter"); |
| }else |
| |
| if( c=='p' && n>=3 && strncmp(azArg[0], "print", n)==0 ){ |
| int i; |
| for(i=1; i<nArg; i++){ |
| if( i>1 ) raw_printf(p->out, " "); |
| utf8_printf(p->out, "%s", azArg[i]); |
| } |
| raw_printf(p->out, "\n"); |
| }else |
| |
| #ifndef SQLITE_OMIT_PROGRESS_CALLBACK |
| if( c=='p' && n>=3 && strncmp(azArg[0], "progress", n)==0 ){ |
| int i; |
| int nn = 0; |
| p->flgProgress = 0; |
| p->mxProgress = 0; |
| p->nProgress = 0; |
| for(i=1; i<nArg; i++){ |
| const char *z = azArg[i]; |
| if( z[0]=='-' ){ |
| z++; |
| if( z[0]=='-' ) z++; |
| if( strcmp(z,"quiet")==0 || strcmp(z,"q")==0 ){ |
| p->flgProgress |= SHELL_PROGRESS_QUIET; |
| continue; |
| } |
| if( strcmp(z,"reset")==0 ){ |
| p->flgProgress |= SHELL_PROGRESS_RESET; |
| continue; |
| } |
| if( strcmp(z,"once")==0 ){ |
| p->flgProgress |= SHELL_PROGRESS_ONCE; |
| continue; |
| } |
| if( strcmp(z,"limit")==0 ){ |
| if( i+1>=nArg ){ |
| utf8_printf(stderr, "Error: missing argument on --limit\n"); |
| rc = 1; |
| goto meta_command_exit; |
| }else{ |
| p->mxProgress = (int)integerValue(azArg[++i]); |
| } |
| continue; |
| } |
| utf8_printf(stderr, "Error: unknown option: \"%s\"\n", azArg[i]); |
| rc = 1; |
| goto meta_command_exit; |
| }else{ |
| nn = (int)integerValue(z); |
| } |
| } |
| open_db(p, 0); |
| sqlite3_progress_handler(p->db, nn, progress_handler, p); |
| }else |
| #endif /* SQLITE_OMIT_PROGRESS_CALLBACK */ |
| |
| if( c=='p' && strncmp(azArg[0], "prompt", n)==0 ){ |
| if( nArg >= 2) { |
| strncpy(mainPrompt,azArg[1],(int)ArraySize(mainPrompt)-1); |
| } |
| if( nArg >= 3) { |
| strncpy(continuePrompt,azArg[2],(int)ArraySize(continuePrompt)-1); |
| } |
| }else |
| |
| if( c=='q' && strncmp(azArg[0], "quit", n)==0 ){ |
| rc = 2; |
| }else |
| |
| if( c=='r' && n>=3 && strncmp(azArg[0], "read", n)==0 ){ |
| FILE *inSaved = p->in; |
| int savedLineno = p->lineno; |
| if( nArg!=2 ){ |
| raw_printf(stderr, "Usage: .read FILE\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| p->in = fopen(azArg[1], "rb"); |
| if( p->in==0 ){ |
| utf8_printf(stderr,"Error: cannot open \"%s\"\n", azArg[1]); |
| rc = 1; |
| }else{ |
| rc = process_input(p); |
| fclose(p->in); |
| } |
| p->in = inSaved; |
| p->lineno = savedLineno; |
| }else |
| |
| if( c=='r' && n>=3 && strncmp(azArg[0], "restore", n)==0 ){ |
| const char *zSrcFile; |
| const char *zDb; |
| sqlite3 *pSrc; |
| sqlite3_backup *pBackup; |
| int nTimeout = 0; |
| |
| if( nArg==2 ){ |
| zSrcFile = azArg[1]; |
| zDb = "main"; |
| }else if( nArg==3 ){ |
| zSrcFile = azArg[2]; |
| zDb = azArg[1]; |
| }else{ |
| raw_printf(stderr, "Usage: .restore ?DB? FILE\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| rc = sqlite3_open(zSrcFile, &pSrc); |
| if( rc!=SQLITE_OK ){ |
| utf8_printf(stderr, "Error: cannot open \"%s\"\n", zSrcFile); |
| close_db(pSrc); |
| return 1; |
| } |
| open_db(p, 0); |
| pBackup = sqlite3_backup_init(p->db, zDb, pSrc, "main"); |
| if( pBackup==0 ){ |
| utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(p->db)); |
| close_db(pSrc); |
| return 1; |
| } |
| while( (rc = sqlite3_backup_step(pBackup,100))==SQLITE_OK |
| || rc==SQLITE_BUSY ){ |
| if( rc==SQLITE_BUSY ){ |
| if( nTimeout++ >= 3 ) break; |
| sqlite3_sleep(100); |
| } |
| } |
| sqlite3_backup_finish(pBackup); |
| if( rc==SQLITE_DONE ){ |
| rc = 0; |
| }else if( rc==SQLITE_BUSY || rc==SQLITE_LOCKED ){ |
| raw_printf(stderr, "Error: source database is busy\n"); |
| rc = 1; |
| }else{ |
| utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(p->db)); |
| rc = 1; |
| } |
| close_db(pSrc); |
| }else |
| |
| if( c=='s' && strncmp(azArg[0], "scanstats", n)==0 ){ |
| if( nArg==2 ){ |
| p->scanstatsOn = (u8)booleanValue(azArg[1]); |
| #ifndef SQLITE_ENABLE_STMT_SCANSTATUS |
| raw_printf(stderr, "Warning: .scanstats not available in this build.\n"); |
| #endif |
| }else{ |
| raw_printf(stderr, "Usage: .scanstats on|off\n"); |
| rc = 1; |
| } |
| }else |
| |
| if( c=='s' && strncmp(azArg[0], "schema", n)==0 ){ |
| ShellText sSelect; |
| ShellState data; |
| char *zErrMsg = 0; |
| const char *zDiv = "("; |
| const char *zName = 0; |
| int iSchema = 0; |
| int bDebug = 0; |
| int ii; |
| |
| open_db(p, 0); |
| memcpy(&data, p, sizeof(data)); |
| data.showHeader = 0; |
| data.cMode = data.mode = MODE_Semi; |
| initText(&sSelect); |
| for(ii=1; ii<nArg; ii++){ |
| if( optionMatch(azArg[ii],"indent") ){ |
| data.cMode = data.mode = MODE_Pretty; |
| }else if( optionMatch(azArg[ii],"debug") ){ |
| bDebug = 1; |
| }else if( zName==0 ){ |
| zName = azArg[ii]; |
| }else{ |
| raw_printf(stderr, "Usage: .schema ?--indent? ?LIKE-PATTERN?\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| } |
| if( zName!=0 ){ |
| int isMaster = sqlite3_strlike(zName, "sqlite_master", '\\')==0; |
| if( isMaster || sqlite3_strlike(zName,"sqlite_temp_master", '\\')==0 ){ |
| char *new_argv[2], *new_colv[2]; |
| new_argv[0] = sqlite3_mprintf( |
| "CREATE TABLE %s (\n" |
| " type text,\n" |
| " name text,\n" |
| " tbl_name text,\n" |
| " rootpage integer,\n" |
| " sql text\n" |
| ")", isMaster ? "sqlite_master" : "sqlite_temp_master"); |
| new_argv[1] = 0; |
| new_colv[0] = "sql"; |
| new_colv[1] = 0; |
| callback(&data, 1, new_argv, new_colv); |
| sqlite3_free(new_argv[0]); |
| } |
| } |
| if( zDiv ){ |
| sqlite3_stmt *pStmt = 0; |
| rc = sqlite3_prepare_v2(p->db, "SELECT name FROM pragma_database_list", |
| -1, &pStmt, 0); |
| if( rc ){ |
| utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(p->db)); |
| sqlite3_finalize(pStmt); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| appendText(&sSelect, "SELECT sql FROM", 0); |
| iSchema = 0; |
| while( sqlite3_step(pStmt)==SQLITE_ROW ){ |
| const char *zDb = (const char*)sqlite3_column_text(pStmt, 0); |
| char zScNum[30]; |
| sqlite3_snprintf(sizeof(zScNum), zScNum, "%d", ++iSchema); |
| appendText(&sSelect, zDiv, 0); |
| zDiv = " UNION ALL "; |
| appendText(&sSelect, "SELECT shell_add_schema(sql,", 0); |
| if( sqlite3_stricmp(zDb, "main")!=0 ){ |
| appendText(&sSelect, zDb, '"'); |
| }else{ |
| appendText(&sSelect, "NULL", 0); |
| } |
| appendText(&sSelect, ",name) AS sql, type, tbl_name, name, rowid,", 0); |
| appendText(&sSelect, zScNum, 0); |
| appendText(&sSelect, " AS snum, ", 0); |
| appendText(&sSelect, zDb, '\''); |
| appendText(&sSelect, " AS sname FROM ", 0); |
| appendText(&sSelect, zDb, '"'); |
| appendText(&sSelect, ".sqlite_master", 0); |
| } |
| sqlite3_finalize(pStmt); |
| #ifdef SQLITE_INTROSPECTION_PRAGMAS |
| if( zName ){ |
| appendText(&sSelect, |
| " UNION ALL SELECT shell_module_schema(name)," |
| " 'table', name, name, name, 9e+99, 'main' FROM pragma_module_list", 0); |
| } |
| #endif |
| appendText(&sSelect, ") WHERE ", 0); |
| if( zName ){ |
| char *zQarg = sqlite3_mprintf("%Q", zName); |
| int bGlob = strchr(zName, '*') != 0 || strchr(zName, '?') != 0 || |
| strchr(zName, '[') != 0; |
| if( strchr(zName, '.') ){ |
| appendText(&sSelect, "lower(printf('%s.%s',sname,tbl_name))", 0); |
| }else{ |
| appendText(&sSelect, "lower(tbl_name)", 0); |
| } |
| appendText(&sSelect, bGlob ? " GLOB " : " LIKE ", 0); |
| appendText(&sSelect, zQarg, 0); |
| if( !bGlob ){ |
| appendText(&sSelect, " ESCAPE '\\' ", 0); |
| } |
| appendText(&sSelect, " AND ", 0); |
| sqlite3_free(zQarg); |
| } |
| appendText(&sSelect, "type!='meta' AND sql IS NOT NULL" |
| " ORDER BY snum, rowid", 0); |
| if( bDebug ){ |
| utf8_printf(p->out, "SQL: %s;\n", sSelect.z); |
| }else{ |
| rc = sqlite3_exec(p->db, sSelect.z, callback, &data, &zErrMsg); |
| } |
| freeText(&sSelect); |
| } |
| if( zErrMsg ){ |
| utf8_printf(stderr,"Error: %s\n", zErrMsg); |
| sqlite3_free(zErrMsg); |
| rc = 1; |
| }else if( rc != SQLITE_OK ){ |
| raw_printf(stderr,"Error: querying schema information\n"); |
| rc = 1; |
| }else{ |
| rc = 0; |
| } |
| }else |
| |
| #if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_SELECTTRACE) |
| if( c=='s' && n==11 && strncmp(azArg[0], "selecttrace", n)==0 ){ |
| sqlite3SelectTrace = (int)integerValue(azArg[1]); |
| }else |
| #endif |
| |
| #if defined(SQLITE_ENABLE_SESSION) |
| if( c=='s' && strncmp(azArg[0],"session",n)==0 && n>=3 ){ |
| OpenSession *pSession = &p->aSession[0]; |
| char **azCmd = &azArg[1]; |
| int iSes = 0; |
| int nCmd = nArg - 1; |
| int i; |
| if( nArg<=1 ) goto session_syntax_error; |
| open_db(p, 0); |
| if( nArg>=3 ){ |
| for(iSes=0; iSes<p->nSession; iSes++){ |
| if( strcmp(p->aSession[iSes].zName, azArg[1])==0 ) break; |
| } |
| if( iSes<p->nSession ){ |
| pSession = &p->aSession[iSes]; |
| azCmd++; |
| nCmd--; |
| }else{ |
| pSession = &p->aSession[0]; |
| iSes = 0; |
| } |
| } |
| |
| /* .session attach TABLE |
| ** Invoke the sqlite3session_attach() interface to attach a particular |
| ** table so that it is never filtered. |
| */ |
| if( strcmp(azCmd[0],"attach")==0 ){ |
| if( nCmd!=2 ) goto session_syntax_error; |
| if( pSession->p==0 ){ |
| session_not_open: |
| raw_printf(stderr, "ERROR: No sessions are open\n"); |
| }else{ |
| rc = sqlite3session_attach(pSession->p, azCmd[1]); |
| if( rc ){ |
| raw_printf(stderr, "ERROR: sqlite3session_attach() returns %d\n", rc); |
| rc = 0; |
| } |
| } |
| }else |
| |
| /* .session changeset FILE |
| ** .session patchset FILE |
| ** Write a changeset or patchset into a file. The file is overwritten. |
| */ |
| if( strcmp(azCmd[0],"changeset")==0 || strcmp(azCmd[0],"patchset")==0 ){ |
| FILE *out = 0; |
| if( nCmd!=2 ) goto session_syntax_error; |
| if( pSession->p==0 ) goto session_not_open; |
| out = fopen(azCmd[1], "wb"); |
| if( out==0 ){ |
| utf8_printf(stderr, "ERROR: cannot open \"%s\" for writing\n", azCmd[1]); |
| }else{ |
| int szChng; |
| void *pChng; |
| if( azCmd[0][0]=='c' ){ |
| rc = sqlite3session_changeset(pSession->p, &szChng, &pChng); |
| }else{ |
| rc = sqlite3session_patchset(pSession->p, &szChng, &pChng); |
| } |
| if( rc ){ |
| printf("Error: error code %d\n", rc); |
| rc = 0; |
| } |
| if( pChng |
| && fwrite(pChng, szChng, 1, out)!=1 ){ |
| raw_printf(stderr, "ERROR: Failed to write entire %d-byte output\n", |
| szChng); |
| } |
| sqlite3_free(pChng); |
| fclose(out); |
| } |
| }else |
| |
| /* .session close |
| ** Close the identified session |
| */ |
| if( strcmp(azCmd[0], "close")==0 ){ |
| if( nCmd!=1 ) goto session_syntax_error; |
| if( p->nSession ){ |
| session_close(pSession); |
| p->aSession[iSes] = p->aSession[--p->nSession]; |
| } |
| }else |
| |
| /* .session enable ?BOOLEAN? |
| ** Query or set the enable flag |
| */ |
| if( strcmp(azCmd[0], "enable")==0 ){ |
| int ii; |
| if( nCmd>2 ) goto session_syntax_error; |
| ii = nCmd==1 ? -1 : booleanValue(azCmd[1]); |
| if( p->nSession ){ |
| ii = sqlite3session_enable(pSession->p, ii); |
| utf8_printf(p->out, "session %s enable flag = %d\n", |
| pSession->zName, ii); |
| } |
| }else |
| |
| /* .session filter GLOB .... |
| ** Set a list of GLOB patterns of table names to be excluded. |
| */ |
| if( strcmp(azCmd[0], "filter")==0 ){ |
| int ii, nByte; |
| if( nCmd<2 ) goto session_syntax_error; |
| if( p->nSession ){ |
| for(ii=0; ii<pSession->nFilter; ii++){ |
| sqlite3_free(pSession->azFilter[ii]); |
| } |
| sqlite3_free(pSession->azFilter); |
| nByte = sizeof(pSession->azFilter[0])*(nCmd-1); |
| pSession->azFilter = sqlite3_malloc( nByte ); |
| if( pSession->azFilter==0 ){ |
| raw_printf(stderr, "Error: out or memory\n"); |
| exit(1); |
| } |
| for(ii=1; ii<nCmd; ii++){ |
| pSession->azFilter[ii-1] = sqlite3_mprintf("%s", azCmd[ii]); |
| } |
| pSession->nFilter = ii-1; |
| } |
| }else |
| |
| /* .session indirect ?BOOLEAN? |
| ** Query or set the indirect flag |
| */ |
| if( strcmp(azCmd[0], "indirect")==0 ){ |
| int ii; |
| if( nCmd>2 ) goto session_syntax_error; |
| ii = nCmd==1 ? -1 : booleanValue(azCmd[1]); |
| if( p->nSession ){ |
| ii = sqlite3session_indirect(pSession->p, ii); |
| utf8_printf(p->out, "session %s indirect flag = %d\n", |
| pSession->zName, ii); |
| } |
| }else |
| |
| /* .session isempty |
| ** Determine if the session is empty |
| */ |
| if( strcmp(azCmd[0], "isempty")==0 ){ |
| int ii; |
| if( nCmd!=1 ) goto session_syntax_error; |
| if( p->nSession ){ |
| ii = sqlite3session_isempty(pSession->p); |
| utf8_printf(p->out, "session %s isempty flag = %d\n", |
| pSession->zName, ii); |
| } |
| }else |
| |
| /* .session list |
| ** List all currently open sessions |
| */ |
| if( strcmp(azCmd[0],"list")==0 ){ |
| for(i=0; i<p->nSession; i++){ |
| utf8_printf(p->out, "%d %s\n", i, p->aSession[i].zName); |
| } |
| }else |
| |
| /* .session open DB NAME |
| ** Open a new session called NAME on the attached database DB. |
| ** DB is normally "main". |
| */ |
| if( strcmp(azCmd[0],"open")==0 ){ |
| char *zName; |
| if( nCmd!=3 ) goto session_syntax_error; |
| zName = azCmd[2]; |
| if( zName[0]==0 ) goto session_syntax_error; |
| for(i=0; i<p->nSession; i++){ |
| if( strcmp(p->aSession[i].zName,zName)==0 ){ |
| utf8_printf(stderr, "Session \"%s\" already exists\n", zName); |
| goto meta_command_exit; |
| } |
| } |
| if( p->nSession>=ArraySize(p->aSession) ){ |
| raw_printf(stderr, "Maximum of %d sessions\n", ArraySize(p->aSession)); |
| goto meta_command_exit; |
| } |
| pSession = &p->aSession[p->nSession]; |
| rc = sqlite3session_create(p->db, azCmd[1], &pSession->p); |
| if( rc ){ |
| raw_printf(stderr, "Cannot open session: error code=%d\n", rc); |
| rc = 0; |
| goto meta_command_exit; |
| } |
| pSession->nFilter = 0; |
| sqlite3session_table_filter(pSession->p, session_filter, pSession); |
| p->nSession++; |
| pSession->zName = sqlite3_mprintf("%s", zName); |
| }else |
| /* If no command name matches, show a syntax error */ |
| session_syntax_error: |
| showHelp(p->out, "session"); |
| }else |
| #endif |
| |
| #ifdef SQLITE_DEBUG |
| /* Undocumented commands for internal testing. Subject to change |
| ** without notice. */ |
| if( c=='s' && n>=10 && strncmp(azArg[0], "selftest-", 9)==0 ){ |
| if( strncmp(azArg[0]+9, "boolean", n-9)==0 ){ |
| int i, v; |
| for(i=1; i<nArg; i++){ |
| v = booleanValue(azArg[i]); |
| utf8_printf(p->out, "%s: %d 0x%x\n", azArg[i], v, v); |
| } |
| } |
| if( strncmp(azArg[0]+9, "integer", n-9)==0 ){ |
| int i; sqlite3_int64 v; |
| for(i=1; i<nArg; i++){ |
| char zBuf[200]; |
| v = integerValue(azArg[i]); |
| sqlite3_snprintf(sizeof(zBuf),zBuf,"%s: %lld 0x%llx\n", azArg[i],v,v); |
| utf8_printf(p->out, "%s", zBuf); |
| } |
| } |
| }else |
| #endif |
| |
| if( c=='s' && n>=4 && strncmp(azArg[0],"selftest",n)==0 ){ |
| int bIsInit = 0; /* True to initialize the SELFTEST table */ |
| int bVerbose = 0; /* Verbose output */ |
| int bSelftestExists; /* True if SELFTEST already exists */ |
| int i, k; /* Loop counters */ |
| int nTest = 0; /* Number of tests runs */ |
| int nErr = 0; /* Number of errors seen */ |
| ShellText str; /* Answer for a query */ |
| sqlite3_stmt *pStmt = 0; /* Query against the SELFTEST table */ |
| |
| open_db(p,0); |
| for(i=1; i<nArg; i++){ |
| const char *z = azArg[i]; |
| if( z[0]=='-' && z[1]=='-' ) z++; |
| if( strcmp(z,"-init")==0 ){ |
| bIsInit = 1; |
| }else |
| if( strcmp(z,"-v")==0 ){ |
| bVerbose++; |
| }else |
| { |
| utf8_printf(stderr, "Unknown option \"%s\" on \"%s\"\n", |
| azArg[i], azArg[0]); |
| raw_printf(stderr, "Should be one of: --init -v\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| } |
| if( sqlite3_table_column_metadata(p->db,"main","selftest",0,0,0,0,0,0) |
| != SQLITE_OK ){ |
| bSelftestExists = 0; |
| }else{ |
| bSelftestExists = 1; |
| } |
| if( bIsInit ){ |
| createSelftestTable(p); |
| bSelftestExists = 1; |
| } |
| initText(&str); |
| appendText(&str, "x", 0); |
| for(k=bSelftestExists; k>=0; k--){ |
| if( k==1 ){ |
| rc = sqlite3_prepare_v2(p->db, |
| "SELECT tno,op,cmd,ans FROM selftest ORDER BY tno", |
| -1, &pStmt, 0); |
| }else{ |
| rc = sqlite3_prepare_v2(p->db, |
| "VALUES(0,'memo','Missing SELFTEST table - default checks only','')," |
| " (1,'run','PRAGMA integrity_check','ok')", |
| -1, &pStmt, 0); |
| } |
| if( rc ){ |
| raw_printf(stderr, "Error querying the selftest table\n"); |
| rc = 1; |
| sqlite3_finalize(pStmt); |
| goto meta_command_exit; |
| } |
| for(i=1; sqlite3_step(pStmt)==SQLITE_ROW; i++){ |
| int tno = sqlite3_column_int(pStmt, 0); |
| const char *zOp = (const char*)sqlite3_column_text(pStmt, 1); |
| const char *zSql = (const char*)sqlite3_column_text(pStmt, 2); |
| const char *zAns = (const char*)sqlite3_column_text(pStmt, 3); |
| |
| k = 0; |
| if( bVerbose>0 ){ |
| char *zQuote = sqlite3_mprintf("%q", zSql); |
| printf("%d: %s %s\n", tno, zOp, zSql); |
| sqlite3_free(zQuote); |
| } |
| if( strcmp(zOp,"memo")==0 ){ |
| utf8_printf(p->out, "%s\n", zSql); |
| }else |
| if( strcmp(zOp,"run")==0 ){ |
| char *zErrMsg = 0; |
| str.n = 0; |
| str.z[0] = 0; |
| rc = sqlite3_exec(p->db, zSql, captureOutputCallback, &str, &zErrMsg); |
| nTest++; |
| if( bVerbose ){ |
| utf8_printf(p->out, "Result: %s\n", str.z); |
| } |
| if( rc || zErrMsg ){ |
| nErr++; |
| rc = 1; |
| utf8_printf(p->out, "%d: error-code-%d: %s\n", tno, rc, zErrMsg); |
| sqlite3_free(zErrMsg); |
| }else if( strcmp(zAns,str.z)!=0 ){ |
| nErr++; |
| rc = 1; |
| utf8_printf(p->out, "%d: Expected: [%s]\n", tno, zAns); |
| utf8_printf(p->out, "%d: Got: [%s]\n", tno, str.z); |
| } |
| }else |
| { |
| utf8_printf(stderr, |
| "Unknown operation \"%s\" on selftest line %d\n", zOp, tno); |
| rc = 1; |
| break; |
| } |
| } /* End loop over rows of content from SELFTEST */ |
| sqlite3_finalize(pStmt); |
| } /* End loop over k */ |
| freeText(&str); |
| utf8_printf(p->out, "%d errors out of %d tests\n", nErr, nTest); |
| }else |
| |
| if( c=='s' && strncmp(azArg[0], "separator", n)==0 ){ |
| if( nArg<2 || nArg>3 ){ |
| raw_printf(stderr, "Usage: .separator COL ?ROW?\n"); |
| rc = 1; |
| } |
| if( nArg>=2 ){ |
| sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, |
| "%.*s", (int)ArraySize(p->colSeparator)-1, azArg[1]); |
| } |
| if( nArg>=3 ){ |
| sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, |
| "%.*s", (int)ArraySize(p->rowSeparator)-1, azArg[2]); |
| } |
| }else |
| |
| if( c=='s' && n>=4 && strncmp(azArg[0],"sha3sum",n)==0 ){ |
| const char *zLike = 0; /* Which table to checksum. 0 means everything */ |
| int i; /* Loop counter */ |
| int bSchema = 0; /* Also hash the schema */ |
| int bSeparate = 0; /* Hash each table separately */ |
| int iSize = 224; /* Hash algorithm to use */ |
| int bDebug = 0; /* Only show the query that would have run */ |
| sqlite3_stmt *pStmt; /* For querying tables names */ |
| char *zSql; /* SQL to be run */ |
| char *zSep; /* Separator */ |
| ShellText sSql; /* Complete SQL for the query to run the hash */ |
| ShellText sQuery; /* Set of queries used to read all content */ |
| open_db(p, 0); |
| for(i=1; i<nArg; i++){ |
| const char *z = azArg[i]; |
| if( z[0]=='-' ){ |
| z++; |
| if( z[0]=='-' ) z++; |
| if( strcmp(z,"schema")==0 ){ |
| bSchema = 1; |
| }else |
| if( strcmp(z,"sha3-224")==0 || strcmp(z,"sha3-256")==0 |
| || strcmp(z,"sha3-384")==0 || strcmp(z,"sha3-512")==0 |
| ){ |
| iSize = atoi(&z[5]); |
| }else |
| if( strcmp(z,"debug")==0 ){ |
| bDebug = 1; |
| }else |
| { |
| utf8_printf(stderr, "Unknown option \"%s\" on \"%s\"\n", |
| azArg[i], azArg[0]); |
| raw_printf(stderr, "Should be one of: --schema" |
| " --sha3-224 --sha3-256 --sha3-384 --sha3-512\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| }else if( zLike ){ |
| raw_printf(stderr, "Usage: .sha3sum ?OPTIONS? ?LIKE-PATTERN?\n"); |
| rc = 1; |
| goto meta_command_exit; |
| }else{ |
| zLike = z; |
| bSeparate = 1; |
| if( sqlite3_strlike("sqlite\\_%", zLike, '\\')==0 ) bSchema = 1; |
| } |
| } |
| if( bSchema ){ |
| zSql = "SELECT lower(name) FROM sqlite_master" |
| " WHERE type='table' AND coalesce(rootpage,0)>1" |
| " UNION ALL SELECT 'sqlite_master'" |
| " ORDER BY 1 collate nocase"; |
| }else{ |
| zSql = "SELECT lower(name) FROM sqlite_master" |
| " WHERE type='table' AND coalesce(rootpage,0)>1" |
| " AND name NOT LIKE 'sqlite_%'" |
| " ORDER BY 1 collate nocase"; |
| } |
| sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0); |
| initText(&sQuery); |
| initText(&sSql); |
| appendText(&sSql, "WITH [sha3sum$query](a,b) AS(",0); |
| zSep = "VALUES("; |
| while( SQLITE_ROW==sqlite3_step(pStmt) ){ |
| const char *zTab = (const char*)sqlite3_column_text(pStmt,0); |
| if( zLike && sqlite3_strlike(zLike, zTab, 0)!=0 ) continue; |
| if( strncmp(zTab, "sqlite_",7)!=0 ){ |
| appendText(&sQuery,"SELECT * FROM ", 0); |
| appendText(&sQuery,zTab,'"'); |
| appendText(&sQuery," NOT INDEXED;", 0); |
| }else if( strcmp(zTab, "sqlite_master")==0 ){ |
| appendText(&sQuery,"SELECT type,name,tbl_name,sql FROM sqlite_master" |
| " ORDER BY name;", 0); |
| }else if( strcmp(zTab, "sqlite_sequence")==0 ){ |
| appendText(&sQuery,"SELECT name,seq FROM sqlite_sequence" |
| " ORDER BY name;", 0); |
| }else if( strcmp(zTab, "sqlite_stat1")==0 ){ |
| appendText(&sQuery,"SELECT tbl,idx,stat FROM sqlite_stat1" |
| " ORDER BY tbl,idx;", 0); |
| }else if( strcmp(zTab, "sqlite_stat3")==0 |
| || strcmp(zTab, "sqlite_stat4")==0 ){ |
| appendText(&sQuery, "SELECT * FROM ", 0); |
| appendText(&sQuery, zTab, 0); |
| appendText(&sQuery, " ORDER BY tbl, idx, rowid;\n", 0); |
| } |
| appendText(&sSql, zSep, 0); |
| appendText(&sSql, sQuery.z, '\''); |
| sQuery.n = 0; |
| appendText(&sSql, ",", 0); |
| appendText(&sSql, zTab, '\''); |
| zSep = "),("; |
| } |
| sqlite3_finalize(pStmt); |
| if( bSeparate ){ |
| zSql = sqlite3_mprintf( |
| "%s))" |
| " SELECT lower(hex(sha3_query(a,%d))) AS hash, b AS label" |
| " FROM [sha3sum$query]", |
| sSql.z, iSize); |
| }else{ |
| zSql = sqlite3_mprintf( |
| "%s))" |
| " SELECT lower(hex(sha3_query(group_concat(a,''),%d))) AS hash" |
| " FROM [sha3sum$query]", |
| sSql.z, iSize); |
| } |
| freeText(&sQuery); |
| freeText(&sSql); |
| if( bDebug ){ |
| utf8_printf(p->out, "%s\n", zSql); |
| }else{ |
| shell_exec(p, zSql, 0); |
| } |
| sqlite3_free(zSql); |
| }else |
| |
| #ifndef SQLITE_NOHAVE_SYSTEM |
| if( c=='s' |
| && (strncmp(azArg[0], "shell", n)==0 || strncmp(azArg[0],"system",n)==0) |
| ){ |
| char *zCmd; |
| int i, x; |
| if( nArg<2 ){ |
| raw_printf(stderr, "Usage: .system COMMAND\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| zCmd = sqlite3_mprintf(strchr(azArg[1],' ')==0?"%s":"\"%s\"", azArg[1]); |
| for(i=2; i<nArg; i++){ |
| zCmd = sqlite3_mprintf(strchr(azArg[i],' ')==0?"%z %s":"%z \"%s\"", |
| zCmd, azArg[i]); |
| } |
| x = system(zCmd); |
| sqlite3_free(zCmd); |
| if( x ) raw_printf(stderr, "System command returns %d\n", x); |
| }else |
| #endif /* !defined(SQLITE_NOHAVE_SYSTEM) */ |
| |
| if( c=='s' && strncmp(azArg[0], "show", n)==0 ){ |
| static const char *azBool[] = { "off", "on", "trigger", "full"}; |
| int i; |
| if( nArg!=1 ){ |
| raw_printf(stderr, "Usage: .show\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| utf8_printf(p->out, "%12.12s: %s\n","echo", |
| azBool[ShellHasFlag(p, SHFLG_Echo)]); |
| utf8_printf(p->out, "%12.12s: %s\n","eqp", azBool[p->autoEQP&3]); |
| utf8_printf(p->out, "%12.12s: %s\n","explain", |
| p->mode==MODE_Explain ? "on" : p->autoExplain ? "auto" : "off"); |
| utf8_printf(p->out,"%12.12s: %s\n","headers", azBool[p->showHeader!=0]); |
| utf8_printf(p->out, "%12.12s: %s\n","mode", modeDescr[p->mode]); |
| utf8_printf(p->out, "%12.12s: ", "nullvalue"); |
| output_c_string(p->out, p->nullValue); |
| raw_printf(p->out, "\n"); |
| utf8_printf(p->out,"%12.12s: %s\n","output", |
| strlen30(p->outfile) ? p->outfile : "stdout"); |
| utf8_printf(p->out,"%12.12s: ", "colseparator"); |
| output_c_string(p->out, p->colSeparator); |
| raw_printf(p->out, "\n"); |
| utf8_printf(p->out,"%12.12s: ", "rowseparator"); |
| output_c_string(p->out, p->rowSeparator); |
| raw_printf(p->out, "\n"); |
| utf8_printf(p->out, "%12.12s: %s\n","stats", azBool[p->statsOn!=0]); |
| utf8_printf(p->out, "%12.12s: ", "width"); |
| for (i=0;i<(int)ArraySize(p->colWidth) && p->colWidth[i] != 0;i++) { |
| raw_printf(p->out, "%d ", p->colWidth[i]); |
| } |
| raw_printf(p->out, "\n"); |
| utf8_printf(p->out, "%12.12s: %s\n", "filename", |
| p->zDbFilename ? p->zDbFilename : ""); |
| }else |
| |
| if( c=='s' && strncmp(azArg[0], "stats", n)==0 ){ |
| if( nArg==2 ){ |
| p->statsOn = (u8)booleanValue(azArg[1]); |
| }else if( nArg==1 ){ |
| display_stats(p->db, p, 0); |
| }else{ |
| raw_printf(stderr, "Usage: .stats ?on|off?\n"); |
| rc = 1; |
| } |
| }else |
| |
| if( (c=='t' && n>1 && strncmp(azArg[0], "tables", n)==0) |
| || (c=='i' && (strncmp(azArg[0], "indices", n)==0 |
| || strncmp(azArg[0], "indexes", n)==0) ) |
| ){ |
| sqlite3_stmt *pStmt; |
| char **azResult; |
| int nRow, nAlloc; |
| int ii; |
| ShellText s; |
| initText(&s); |
| open_db(p, 0); |
| rc = sqlite3_prepare_v2(p->db, "PRAGMA database_list", -1, &pStmt, 0); |
| if( rc ){ |
| sqlite3_finalize(pStmt); |
| return shellDatabaseError(p->db); |
| } |
| |
| if( nArg>2 && c=='i' ){ |
| /* It is an historical accident that the .indexes command shows an error |
| ** when called with the wrong number of arguments whereas the .tables |
| ** command does not. */ |
| raw_printf(stderr, "Usage: .indexes ?LIKE-PATTERN?\n"); |
| rc = 1; |
| sqlite3_finalize(pStmt); |
| goto meta_command_exit; |
| } |
| for(ii=0; sqlite3_step(pStmt)==SQLITE_ROW; ii++){ |
| const char *zDbName = (const char*)sqlite3_column_text(pStmt, 1); |
| if( zDbName==0 ) continue; |
| if( s.z && s.z[0] ) appendText(&s, " UNION ALL ", 0); |
| if( sqlite3_stricmp(zDbName, "main")==0 ){ |
| appendText(&s, "SELECT name FROM ", 0); |
| }else{ |
| appendText(&s, "SELECT ", 0); |
| appendText(&s, zDbName, '\''); |
| appendText(&s, "||'.'||name FROM ", 0); |
| } |
| appendText(&s, zDbName, '"'); |
| appendText(&s, ".sqlite_master ", 0); |
| if( c=='t' ){ |
| appendText(&s," WHERE type IN ('table','view')" |
| " AND name NOT LIKE 'sqlite_%'" |
| " AND name LIKE ?1", 0); |
| }else{ |
| appendText(&s," WHERE type='index'" |
| " AND tbl_name LIKE ?1", 0); |
| } |
| } |
| rc = sqlite3_finalize(pStmt); |
| appendText(&s, " ORDER BY 1", 0); |
| rc = sqlite3_prepare_v2(p->db, s.z, -1, &pStmt, 0); |
| freeText(&s); |
| if( rc ) return shellDatabaseError(p->db); |
| |
| /* Run the SQL statement prepared by the above block. Store the results |
| ** as an array of nul-terminated strings in azResult[]. */ |
| nRow = nAlloc = 0; |
| azResult = 0; |
| if( nArg>1 ){ |
| sqlite3_bind_text(pStmt, 1, azArg[1], -1, SQLITE_TRANSIENT); |
| }else{ |
| sqlite3_bind_text(pStmt, 1, "%", -1, SQLITE_STATIC); |
| } |
| while( sqlite3_step(pStmt)==SQLITE_ROW ){ |
| if( nRow>=nAlloc ){ |
| char **azNew; |
| int n2 = nAlloc*2 + 10; |
| azNew = sqlite3_realloc64(azResult, sizeof(azResult[0])*n2); |
| if( azNew==0 ) shell_out_of_memory(); |
| nAlloc = n2; |
| azResult = azNew; |
| } |
| azResult[nRow] = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 0)); |
| if( 0==azResult[nRow] ) shell_out_of_memory(); |
| nRow++; |
| } |
| if( sqlite3_finalize(pStmt)!=SQLITE_OK ){ |
| rc = shellDatabaseError(p->db); |
| } |
| |
| /* Pretty-print the contents of array azResult[] to the output */ |
| if( rc==0 && nRow>0 ){ |
| int len, maxlen = 0; |
| int i, j; |
| int nPrintCol, nPrintRow; |
| for(i=0; i<nRow; i++){ |
| len = strlen30(azResult[i]); |
| if( len>maxlen ) maxlen = len; |
| } |
| nPrintCol = 80/(maxlen+2); |
| if( nPrintCol<1 ) nPrintCol = 1; |
| nPrintRow = (nRow + nPrintCol - 1)/nPrintCol; |
| for(i=0; i<nPrintRow; i++){ |
| for(j=i; j<nRow; j+=nPrintRow){ |
| char *zSp = j<nPrintRow ? "" : " "; |
| utf8_printf(p->out, "%s%-*s", zSp, maxlen, |
| azResult[j] ? azResult[j]:""); |
| } |
| raw_printf(p->out, "\n"); |
| } |
| } |
| |
| for(ii=0; ii<nRow; ii++) sqlite3_free(azResult[ii]); |
| sqlite3_free(azResult); |
| }else |
| |
| /* Begin redirecting output to the file "testcase-out.txt" */ |
| if( c=='t' && strcmp(azArg[0],"testcase")==0 ){ |
| output_reset(p); |
| p->out = output_file_open("testcase-out.txt", 0); |
| if( p->out==0 ){ |
| raw_printf(stderr, "Error: cannot open 'testcase-out.txt'\n"); |
| } |
| if( nArg>=2 ){ |
| sqlite3_snprintf(sizeof(p->zTestcase), p->zTestcase, "%s", azArg[1]); |
| }else{ |
| sqlite3_snprintf(sizeof(p->zTestcase), p->zTestcase, "?"); |
| } |
| }else |
| |
| #ifndef SQLITE_UNTESTABLE |
| if( c=='t' && n>=8 && strncmp(azArg[0], "testctrl", n)==0 ){ |
| static const struct { |
| const char *zCtrlName; /* Name of a test-control option */ |
| int ctrlCode; /* Integer code for that option */ |
| const char *zUsage; /* Usage notes */ |
| } aCtrl[] = { |
| { "always", SQLITE_TESTCTRL_ALWAYS, "BOOLEAN" }, |
| { "assert", SQLITE_TESTCTRL_ASSERT, "BOOLEAN" }, |
| /*{ "benign_malloc_hooks",SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS, "" },*/ |
| /*{ "bitvec_test", SQLITE_TESTCTRL_BITVEC_TEST, "" },*/ |
| { "byteorder", SQLITE_TESTCTRL_BYTEORDER, "" }, |
| /*{ "fault_install", SQLITE_TESTCTRL_FAULT_INSTALL, "" }, */ |
| { "imposter", SQLITE_TESTCTRL_IMPOSTER, "SCHEMA ON/OFF ROOTPAGE"}, |
| { "internal_functions", SQLITE_TESTCTRL_INTERNAL_FUNCTIONS, "BOOLEAN" }, |
| { "localtime_fault", SQLITE_TESTCTRL_LOCALTIME_FAULT,"BOOLEAN" }, |
| { "never_corrupt", SQLITE_TESTCTRL_NEVER_CORRUPT, "BOOLEAN" }, |
| { "optimizations", SQLITE_TESTCTRL_OPTIMIZATIONS, "DISABLE-MASK" }, |
| #ifdef YYCOVERAGE |
| { "parser_coverage", SQLITE_TESTCTRL_PARSER_COVERAGE, "" }, |
| #endif |
| { "pending_byte", SQLITE_TESTCTRL_PENDING_BYTE, "OFFSET " }, |
| { "prng_reset", SQLITE_TESTCTRL_PRNG_RESET, "" }, |
| { "prng_restore", SQLITE_TESTCTRL_PRNG_RESTORE, "" }, |
| { "prng_save", SQLITE_TESTCTRL_PRNG_SAVE, "" }, |
| { "reserve", SQLITE_TESTCTRL_RESERVE, "BYTES-OF-RESERVE" }, |
| }; |
| int testctrl = -1; |
| int iCtrl = -1; |
| int rc2 = 0; /* 0: usage. 1: %d 2: %x 3: no-output */ |
| int isOk = 0; |
| int i, n2; |
| const char *zCmd = 0; |
| |
| open_db(p, 0); |
| zCmd = nArg>=2 ? azArg[1] : "help"; |
| |
| /* The argument can optionally begin with "-" or "--" */ |
| if( zCmd[0]=='-' && zCmd[1] ){ |
| zCmd++; |
| if( zCmd[0]=='-' && zCmd[1] ) zCmd++; |
| } |
| |
| /* --help lists all test-controls */ |
| if( strcmp(zCmd,"help")==0 ){ |
| utf8_printf(p->out, "Available test-controls:\n"); |
| for(i=0; i<ArraySize(aCtrl); i++){ |
| utf8_printf(p->out, " .testctrl %s %s\n", |
| aCtrl[i].zCtrlName, aCtrl[i].zUsage); |
| } |
| rc = 1; |
| goto meta_command_exit; |
| } |
| |
| /* convert testctrl text option to value. allow any unique prefix |
| ** of the option name, or a numerical value. */ |
| n2 = strlen30(zCmd); |
| for(i=0; i<ArraySize(aCtrl); i++){ |
| if( strncmp(zCmd, aCtrl[i].zCtrlName, n2)==0 ){ |
| if( testctrl<0 ){ |
| testctrl = aCtrl[i].ctrlCode; |
| iCtrl = i; |
| }else{ |
| utf8_printf(stderr, "Error: ambiguous test-control: \"%s\"\n" |
| "Use \".testctrl --help\" for help\n", zCmd); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| } |
| } |
| if( testctrl<0 ){ |
| utf8_printf(stderr,"Error: unknown test-control: %s\n" |
| "Use \".testctrl --help\" for help\n", zCmd); |
| }else{ |
| switch(testctrl){ |
| |
| /* sqlite3_test_control(int, db, int) */ |
| case SQLITE_TESTCTRL_OPTIMIZATIONS: |
| case SQLITE_TESTCTRL_RESERVE: |
| if( nArg==3 ){ |
| int opt = (int)strtol(azArg[2], 0, 0); |
| rc2 = sqlite3_test_control(testctrl, p->db, opt); |
| isOk = 3; |
| } |
| break; |
| |
| /* sqlite3_test_control(int) */ |
| case SQLITE_TESTCTRL_PRNG_SAVE: |
| case SQLITE_TESTCTRL_PRNG_RESTORE: |
| case SQLITE_TESTCTRL_PRNG_RESET: |
| case SQLITE_TESTCTRL_BYTEORDER: |
| if( nArg==2 ){ |
| rc2 = sqlite3_test_control(testctrl); |
| isOk = testctrl==SQLITE_TESTCTRL_BYTEORDER ? 1 : 3; |
| } |
| break; |
| |
| /* sqlite3_test_control(int, uint) */ |
| case SQLITE_TESTCTRL_PENDING_BYTE: |
| if( nArg==3 ){ |
| unsigned int opt = (unsigned int)integerValue(azArg[2]); |
| rc2 = sqlite3_test_control(testctrl, opt); |
| isOk = 3; |
| } |
| break; |
| |
| /* sqlite3_test_control(int, int) */ |
| case SQLITE_TESTCTRL_ASSERT: |
| case SQLITE_TESTCTRL_ALWAYS: |
| case SQLITE_TESTCTRL_INTERNAL_FUNCTIONS: |
| if( nArg==3 ){ |
| int opt = booleanValue(azArg[2]); |
| rc2 = sqlite3_test_control(testctrl, opt); |
| isOk = 1; |
| } |
| break; |
| |
| /* sqlite3_test_control(int, int) */ |
| case SQLITE_TESTCTRL_LOCALTIME_FAULT: |
| case SQLITE_TESTCTRL_NEVER_CORRUPT: |
| if( nArg==3 ){ |
| int opt = booleanValue(azArg[2]); |
| rc2 = sqlite3_test_control(testctrl, opt); |
| isOk = 3; |
| } |
| break; |
| |
| case SQLITE_TESTCTRL_IMPOSTER: |
| if( nArg==5 ){ |
| rc2 = sqlite3_test_control(testctrl, p->db, |
| azArg[2], |
| integerValue(azArg[3]), |
| integerValue(azArg[4])); |
| isOk = 3; |
| } |
| break; |
| |
| #ifdef YYCOVERAGE |
| case SQLITE_TESTCTRL_PARSER_COVERAGE: |
| if( nArg==2 ){ |
| sqlite3_test_control(testctrl, p->out); |
| isOk = 3; |
| } |
| #endif |
| } |
| } |
| if( isOk==0 && iCtrl>=0 ){ |
| utf8_printf(p->out, "Usage: .testctrl %s %s\n", zCmd, aCtrl[iCtrl].zUsage); |
| rc = 1; |
| }else if( isOk==1 ){ |
| raw_printf(p->out, "%d\n", rc2); |
| }else if( isOk==2 ){ |
| raw_printf(p->out, "0x%08x\n", rc2); |
| } |
| }else |
| #endif /* !defined(SQLITE_UNTESTABLE) */ |
| |
| if( c=='t' && n>4 && strncmp(azArg[0], "timeout", n)==0 ){ |
| open_db(p, 0); |
| sqlite3_busy_timeout(p->db, nArg>=2 ? (int)integerValue(azArg[1]) : 0); |
| }else |
| |
| if( c=='t' && n>=5 && strncmp(azArg[0], "timer", n)==0 ){ |
| if( nArg==2 ){ |
| enableTimer = booleanValue(azArg[1]); |
| if( enableTimer && !HAS_TIMER ){ |
| raw_printf(stderr, "Error: timer not available on this system.\n"); |
| enableTimer = 0; |
| } |
| }else{ |
| raw_printf(stderr, "Usage: .timer on|off\n"); |
| rc = 1; |
| } |
| }else |
| |
| #ifndef SQLITE_OMIT_TRACE |
| if( c=='t' && strncmp(azArg[0], "trace", n)==0 ){ |
| int mType = 0; |
| int jj; |
| open_db(p, 0); |
| for(jj=1; jj<nArg; jj++){ |
| const char *z = azArg[jj]; |
| if( z[0]=='-' ){ |
| if( optionMatch(z, "expanded") ){ |
| p->eTraceType = SHELL_TRACE_EXPANDED; |
| } |
| #ifdef SQLITE_ENABLE_NORMALIZE |
| else if( optionMatch(z, "normalized") ){ |
| p->eTraceType = SHELL_TRACE_NORMALIZED; |
| } |
| #endif |
| else if( optionMatch(z, "plain") ){ |
| p->eTraceType = SHELL_TRACE_PLAIN; |
| } |
| else if( optionMatch(z, "profile") ){ |
| mType |= SQLITE_TRACE_PROFILE; |
| } |
| else if( optionMatch(z, "row") ){ |
| mType |= SQLITE_TRACE_ROW; |
| } |
| else if( optionMatch(z, "stmt") ){ |
| mType |= SQLITE_TRACE_STMT; |
| } |
| else if( optionMatch(z, "close") ){ |
| mType |= SQLITE_TRACE_CLOSE; |
| } |
| else { |
| raw_printf(stderr, "Unknown option \"%s\" on \".trace\"\n", z); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| }else{ |
| output_file_close(p->traceOut); |
| p->traceOut = output_file_open(azArg[1], 0); |
| } |
| } |
| if( p->traceOut==0 ){ |
| sqlite3_trace_v2(p->db, 0, 0, 0); |
| }else{ |
| if( mType==0 ) mType = SQLITE_TRACE_STMT; |
| sqlite3_trace_v2(p->db, mType, sql_trace_callback, p); |
| } |
| }else |
| #endif /* !defined(SQLITE_OMIT_TRACE) */ |
| |
| #if SQLITE_USER_AUTHENTICATION |
| if( c=='u' && strncmp(azArg[0], "user", n)==0 ){ |
| if( nArg<2 ){ |
| raw_printf(stderr, "Usage: .user SUBCOMMAND ...\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| open_db(p, 0); |
| if( strcmp(azArg[1],"login")==0 ){ |
| if( nArg!=4 ){ |
| raw_printf(stderr, "Usage: .user login USER PASSWORD\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| rc = sqlite3_user_authenticate(p->db, azArg[2], azArg[3], strlen30(azArg[3])); |
| if( rc ){ |
| utf8_printf(stderr, "Authentication failed for user %s\n", azArg[2]); |
| rc = 1; |
| } |
| }else if( strcmp(azArg[1],"add")==0 ){ |
| if( nArg!=5 ){ |
| raw_printf(stderr, "Usage: .user add USER PASSWORD ISADMIN\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| rc = sqlite3_user_add(p->db, azArg[2], azArg[3], strlen30(azArg[3]), |
| booleanValue(azArg[4])); |
| if( rc ){ |
| raw_printf(stderr, "User-Add failed: %d\n", rc); |
| rc = 1; |
| } |
| }else if( strcmp(azArg[1],"edit")==0 ){ |
| if( nArg!=5 ){ |
| raw_printf(stderr, "Usage: .user edit USER PASSWORD ISADMIN\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| rc = sqlite3_user_change(p->db, azArg[2], azArg[3], strlen30(azArg[3]), |
| booleanValue(azArg[4])); |
| if( rc ){ |
| raw_printf(stderr, "User-Edit failed: %d\n", rc); |
| rc = 1; |
| } |
| }else if( strcmp(azArg[1],"delete")==0 ){ |
| if( nArg!=3 ){ |
| raw_printf(stderr, "Usage: .user delete USER\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| rc = sqlite3_user_delete(p->db, azArg[2]); |
| if( rc ){ |
| raw_printf(stderr, "User-Delete failed: %d\n", rc); |
| rc = 1; |
| } |
| }else{ |
| raw_printf(stderr, "Usage: .user login|add|edit|delete ...\n"); |
| rc = 1; |
| goto meta_command_exit; |
| } |
| }else |
| #endif /* SQLITE_USER_AUTHENTICATION */ |
| |
| if( c=='v' && strncmp(azArg[0], "version", n)==0 ){ |
| utf8_printf(p->out, "SQLite %s %s\n" /*extra-version-info*/, |
| sqlite3_libversion(), sqlite3_sourceid()); |
| #if SQLITE_HAVE_ZLIB |
| utf8_printf(p->out, "zlib version %s\n", zlibVersion()); |
| #endif |
| #define CTIMEOPT_VAL_(opt) #opt |
| #define CTIMEOPT_VAL(opt) CTIMEOPT_VAL_(opt) |
| #if defined(__clang__) && defined(__clang_major__) |
| utf8_printf(p->out, "clang-" CTIMEOPT_VAL(__clang_major__) "." |
| CTIMEOPT_VAL(__clang_minor__) "." |
| CTIMEOPT_VAL(__clang_patchlevel__) "\n"); |
| #elif defined(_MSC_VER) |
| utf8_printf(p->out, "msvc-" CTIMEOPT_VAL(_MSC_VER) "\n"); |
| #elif defined(__GNUC__) && defined(__VERSION__) |
| utf8_printf(p->out, "gcc-" __VERSION__ "\n"); |
| #endif |
| }else |
| |
| if( c=='v' && strncmp(azArg[0], "vfsinfo", n)==0 ){ |
| const char *zDbName = nArg==2 ? azArg[1] : "main"; |
| sqlite3_vfs *pVfs = 0; |
| if( p->db ){ |
| sqlite3_file_control(p->db, zDbName, SQLITE_FCNTL_VFS_POINTER, &pVfs); |
| if( pVfs ){ |
| utf8_printf(p->out, "vfs.zName = \"%s\"\n", pVfs->zName); |
| raw_printf(p->out, "vfs.iVersion = %d\n", pVfs->iVersion); |
| raw_printf(p->out, "vfs.szOsFile = %d\n", pVfs->szOsFile); |
| raw_printf(p->out, "vfs.mxPathname = %d\n", pVfs->mxPathname); |
| } |
| } |
| }else |
| |
| if( c=='v' && strncmp(azArg[0], "vfslist", n)==0 ){ |
| sqlite3_vfs *pVfs; |
| sqlite3_vfs *pCurrent = 0; |
| if( p->db ){ |
| sqlite3_file_control(p->db, "main", SQLITE_FCNTL_VFS_POINTER, &pCurrent); |
| } |
| for(pVfs=sqlite3_vfs_find(0); pVfs; pVfs=pVfs->pNext){ |
| utf8_printf(p->out, "vfs.zName = \"%s\"%s\n", pVfs->zName, |
| pVfs==pCurrent ? " <--- CURRENT" : ""); |
| raw_printf(p->out, "vfs.iVersion = %d\n", pVfs->iVersion); |
| raw_printf(p->out, "vfs.szOsFile = %d\n", pVfs->szOsFile); |
| raw_printf(p->out, "vfs.mxPathname = %d\n", pVfs->mxPathname); |
| if( pVfs->pNext ){ |
| raw_printf(p->out, "-----------------------------------\n"); |
| } |
| } |
| }else |
| |
| if( c=='v' && strncmp(azArg[0], "vfsname", n)==0 ){ |
| const char *zDbName = nArg==2 ? azArg[1] : "main"; |
| char *zVfsName = 0; |
| if( p->db ){ |
| sqlite3_file_control(p->db, zDbName, SQLITE_FCNTL_VFSNAME, &zVfsName); |
| if( zVfsName ){ |
| utf8_printf(p->out, "%s\n", zVfsName); |
| sqlite3_free(zVfsName); |
| } |
| } |
| }else |
| |
| #if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE) |
| if( c=='w' && strncmp(azArg[0], "wheretrace", n)==0 ){ |
| sqlite3WhereTrace = nArg>=2 ? booleanValue(azArg[1]) : 0xff; |
| }else |
| #endif |
| |
| if( c=='w' && strncmp(azArg[0], "width", n)==0 ){ |
| int j; |
| assert( nArg<=ArraySize(azArg) ); |
| for(j=1; j<nArg && j<ArraySize(p->colWidth); j++){ |
| p->colWidth[j-1] = (int)integerValue(azArg[j]); |
| } |
| }else |
| |
| { |
| utf8_printf(stderr, "Error: unknown command or invalid arguments: " |
| " \"%s\". Enter \".help\" for help\n", azArg[0]); |
| rc = 1; |
| } |
| |
| meta_command_exit: |
| if( p->outCount ){ |
| p->outCount--; |
| if( p->outCount==0 ) output_reset(p); |
| } |
| return rc; |
| } |
| |
| /* |
| ** Return TRUE if a semicolon occurs anywhere in the first N characters |
| ** of string z[]. |
| */ |
| static int line_contains_semicolon(const char *z, int N){ |
| int i; |
| for(i=0; i<N; i++){ if( z[i]==';' ) return 1; } |
| return 0; |
| } |
| |
| /* |
| ** Test to see if a line consists entirely of whitespace. |
| */ |
| static int _all_whitespace(const char *z){ |
| for(; *z; z++){ |
| if( IsSpace(z[0]) ) continue; |
| if( *z=='/' && z[1]=='*' ){ |
| z += 2; |
| while( *z && (*z!='*' || z[1]!='/') ){ z++; } |
| if( *z==0 ) return 0; |
| z++; |
| continue; |
| } |
| if( *z=='-' && z[1]=='-' ){ |
| z += 2; |
| while( *z && *z!='\n' ){ z++; } |
| if( *z==0 ) return 1; |
| continue; |
| } |
| return 0; |
| } |
| return 1; |
| } |
| |
| /* |
| ** Return TRUE if the line typed in is an SQL command terminator other |
| ** than a semi-colon. The SQL Server style "go" command is understood |
| ** as is the Oracle "/". |
| */ |
| static int line_is_command_terminator(const char *zLine){ |
| while( IsSpace(zLine[0]) ){ zLine++; }; |
| if( zLine[0]=='/' && _all_whitespace(&zLine[1]) ){ |
| return 1; /* Oracle */ |
| } |
| if( ToLower(zLine[0])=='g' && ToLower(zLine[1])=='o' |
| && _all_whitespace(&zLine[2]) ){ |
| return 1; /* SQL Server */ |
| } |
| return 0; |
| } |
| |
| /* |
| ** We need a default sqlite3_complete() implementation to use in case |
| ** the shell is compiled with SQLITE_OMIT_COMPLETE. The default assumes |
| ** any arbitrary text is a complete SQL statement. This is not very |
| ** user-friendly, but it does seem to work. |
| */ |
| #ifdef SQLITE_OMIT_COMPLETE |
| #define sqlite3_complete(x) 1 |
| #endif |
| |
| /* |
| ** Return true if zSql is a complete SQL statement. Return false if it |
| ** ends in the middle of a string literal or C-style comment. |
| */ |
| static int line_is_complete(char *zSql, int nSql){ |
| int rc; |
| if( zSql==0 ) return 1; |
| zSql[nSql] = ';'; |
| zSql[nSql+1] = 0; |
| rc = sqlite3_complete(zSql); |
| zSql[nSql] = 0; |
| return rc; |
| } |
| |
| /* |
| ** Run a single line of SQL. Return the number of errors. |
| */ |
| static int runOneSqlLine(ShellState *p, char *zSql, FILE *in, int startline){ |
| int rc; |
| char *zErrMsg = 0; |
| |
| open_db(p, 0); |
| if( ShellHasFlag(p,SHFLG_Backslash) ) resolve_backslashes(zSql); |
| if( p->flgProgress & SHELL_PROGRESS_RESET ) p->nProgress = 0; |
| BEGIN_TIMER; |
| rc = shell_exec(p, zSql, &zErrMsg); |
| END_TIMER; |
| if( rc || zErrMsg ){ |
| char zPrefix[100]; |
| if( in!=0 || !stdin_is_interactive ){ |
| sqlite3_snprintf(sizeof(zPrefix), zPrefix, |
| "Error: near line %d:", startline); |
| }else{ |
| sqlite3_snprintf(sizeof(zPrefix), zPrefix, "Error:"); |
| } |
| if( zErrMsg!=0 ){ |
| utf8_printf(stderr, "%s %s\n", zPrefix, zErrMsg); |
| sqlite3_free(zErrMsg); |
| zErrMsg = 0; |
| }else{ |
| utf8_printf(stderr, "%s %s\n", zPrefix, sqlite3_errmsg(p->db)); |
| } |
| return 1; |
| }else if( ShellHasFlag(p, SHFLG_CountChanges) ){ |
| raw_printf(p->out, "changes: %3d total_changes: %d\n", |
| sqlite3_changes(p->db), sqlite3_total_changes(p->db)); |
| } |
| return 0; |
| } |
| |
| |
| /* |
| ** Read input from *in and process it. If *in==0 then input |
| ** is interactive - the user is typing it it. Otherwise, input |
| ** is coming from a file or device. A prompt is issued and history |
| ** is saved only if input is interactive. An interrupt signal will |
| ** cause this routine to exit immediately, unless input is interactive. |
| ** |
| ** Return the number of errors. |
| */ |
| static int process_input(ShellState *p){ |
| char *zLine = 0; /* A single input line */ |
| char *zSql = 0; /* Accumulated SQL text */ |
| int nLine; /* Length of current line */ |
| int nSql = 0; /* Bytes of zSql[] used */ |
| int nAlloc = 0; /* Allocated zSql[] space */ |
| int nSqlPrior = 0; /* Bytes of zSql[] used by prior line */ |
| int rc; /* Error code */ |
| int errCnt = 0; /* Number of errors seen */ |
| int startline = 0; /* Line number for start of current input */ |
| |
| p->lineno = 0; |
| while( errCnt==0 || !bail_on_error || (p->in==0 && stdin_is_interactive) ){ |
| fflush(p->out); |
| zLine = one_input_line(p->in, zLine, nSql>0); |
| if( zLine==0 ){ |
| /* End of input */ |
| if( p->in==0 && stdin_is_interactive ) printf("\n"); |
| break; |
| } |
| if( seenInterrupt ){ |
| if( p->in!=0 ) break; |
| seenInterrupt = 0; |
| } |
| p->lineno++; |
| if( nSql==0 && _all_whitespace(zLine) ){ |
| if( ShellHasFlag(p, SHFLG_Echo) ) printf("%s\n", zLine); |
| continue; |
| } |
| if( zLine && (zLine[0]=='.' || zLine[0]=='#') && nSql==0 ){ |
| if( ShellHasFlag(p, SHFLG_Echo) ) printf("%s\n", zLine); |
| if( zLine[0]=='.' ){ |
| rc = do_meta_command(zLine, p); |
| if( rc==2 ){ /* exit requested */ |
| break; |
| }else if( rc ){ |
| errCnt++; |
| } |
| } |
| continue; |
| } |
| if( line_is_command_terminator(zLine) && line_is_complete(zSql, nSql) ){ |
| memcpy(zLine,";",2); |
| } |
| nLine = strlen30(zLine); |
| if( nSql+nLine+2>=nAlloc ){ |
| nAlloc = nSql+nLine+100; |
| zSql = realloc(zSql, nAlloc); |
| if( zSql==0 ) shell_out_of_memory(); |
| } |
| nSqlPrior = nSql; |
| if( nSql==0 ){ |
| int i; |
| for(i=0; zLine[i] && IsSpace(zLine[i]); i++){} |
| assert( nAlloc>0 && zSql!=0 ); |
| memcpy(zSql, zLine+i, nLine+1-i); |
| startline = p->lineno; |
| nSql = nLine-i; |
| }else{ |
| zSql[nSql++] = '\n'; |
| memcpy(zSql+nSql, zLine, nLine+1); |
| nSql += nLine; |
| } |
| if( nSql && line_contains_semicolon(&zSql[nSqlPrior], nSql-nSqlPrior) |
| && sqlite3_complete(zSql) ){ |
| errCnt += runOneSqlLine(p, zSql, p->in, startline); |
| nSql = 0; |
| if( p->outCount ){ |
| output_reset(p); |
| p->outCount = 0; |
| }else{ |
| clearTempFile(p); |
| } |
| }else if( nSql && _all_whitespace(zSql) ){ |
| if( ShellHasFlag(p, SHFLG_Echo) ) printf("%s\n", zSql); |
| nSql = 0; |
| } |
| } |
| if( nSql && !_all_whitespace(zSql) ){ |
| errCnt += runOneSqlLine(p, zSql, p->in, startline); |
| } |
| free(zSql); |
| free(zLine); |
| return errCnt>0; |
| } |
| |
| /* |
| ** Return a pathname which is the user's home directory. A |
| ** 0 return indicates an error of some kind. |
| */ |
| static char *find_home_dir(int clearFlag){ |
| static char *home_dir = NULL; |
| if( clearFlag ){ |
| free(home_dir); |
| home_dir = 0; |
| return 0; |
| } |
| if( home_dir ) return home_dir; |
| |
| #if !defined(_WIN32) && !defined(WIN32) && !defined(_WIN32_WCE) \ |
| && !defined(__RTP__) && !defined(_WRS_KERNEL) |
| { |
| struct passwd *pwent; |
| uid_t uid = getuid(); |
| if( (pwent=getpwuid(uid)) != NULL) { |
| home_dir = pwent->pw_dir; |
| } |
| } |
| #endif |
| |
| #if defined(_WIN32_WCE) |
| /* Windows CE (arm-wince-mingw32ce-gcc) does not provide getenv() |
| */ |
| home_dir = "/"; |
| #else |
| |
| #if defined(_WIN32) || defined(WIN32) |
| if (!home_dir) { |
| home_dir = getenv("USERPROFILE"); |
| } |
| #endif |
| |
| if (!home_dir) { |
| home_dir = getenv("HOME"); |
| } |
| |
| #if defined(_WIN32) || defined(WIN32) |
| if (!home_dir) { |
| char *zDrive, *zPath; |
| int n; |
| zDrive = getenv("HOMEDRIVE"); |
| zPath = getenv("HOMEPATH"); |
| if( zDrive && zPath ){ |
| n = strlen30(zDrive) + strlen30(zPath) + 1; |
| home_dir = malloc( n ); |
| if( home_dir==0 ) return 0; |
| sqlite3_snprintf(n, home_dir, "%s%s", zDrive, zPath); |
| return home_dir; |
| } |
| home_dir = "c:\\"; |
| } |
| #endif |
| |
| #endif /* !_WIN32_WCE */ |
| |
| if( home_dir ){ |
| int n = strlen30(home_dir) + 1; |
| char *z = malloc( n ); |
| if( z ) memcpy(z, home_dir, n); |
| home_dir = z; |
| } |
| |
| return home_dir; |
| } |
| |
| /* |
| ** Read input from the file given by sqliterc_override. Or if that |
| ** parameter is NULL, take input from ~/.sqliterc |
| ** |
| ** Returns the number of errors. |
| */ |
| static void process_sqliterc( |
| ShellState *p, /* Configuration data */ |
| const char *sqliterc_override /* Name of config file. NULL to use default */ |
| ){ |
| char *home_dir = NULL; |
| const char *sqliterc = sqliterc_override; |
| char *zBuf = 0; |
| FILE *inSaved = p->in; |
| int savedLineno = p->lineno; |
| |
| if (sqliterc == NULL) { |
| home_dir = find_home_dir(0); |
| if( home_dir==0 ){ |
| raw_printf(stderr, "-- warning: cannot find home directory;" |
| " cannot read ~/.sqliterc\n"); |
| return; |
| } |
| zBuf = sqlite3_mprintf("%s/.sqliterc",home_dir); |
| sqliterc = zBuf; |
| } |
| p->in = fopen(sqliterc,"rb"); |
| if( p->in ){ |
| if( stdin_is_interactive ){ |
| utf8_printf(stderr,"-- Loading resources from %s\n",sqliterc); |
| } |
| process_input(p); |
| fclose(p->in); |
| } |
| p->in = inSaved; |
| p->lineno = savedLineno; |
| sqlite3_free(zBuf); |
| } |
| |
| /* |
| ** Show available command line options |
| */ |
| static const char zOptions[] = |
| #if defined(SQLITE_HAVE_ZLIB) && !defined(SQLITE_OMIT_VIRTUALTABLE) |
| " -A ARGS... run \".archive ARGS\" and exit\n" |
| #endif |
| " -append append the database to the end of the file\n" |
| " -ascii set output mode to 'ascii'\n" |
| " -bail stop after hitting an error\n" |
| " -batch force batch I/O\n" |
| " -column set output mode to 'column'\n" |
| " -cmd COMMAND run \"COMMAND\" before reading stdin\n" |
| " -csv set output mode to 'csv'\n" |
| #if defined(SQLITE_ENABLE_DESERIALIZE) |
| " -deserialize open the database using sqlite3_deserialize()\n" |
| #endif |
| " -echo print commands before execution\n" |
| " -init FILENAME read/process named file\n" |
| " -[no]header turn headers on or off\n" |
| #if defined(SQLITE_ENABLE_MEMSYS3) || defined(SQLITE_ENABLE_MEMSYS5) |
| " -heap SIZE Size of heap for memsys3 or memsys5\n" |
| #endif |
| " -help show this message\n" |
| " -html set output mode to HTML\n" |
| " -interactive force interactive I/O\n" |
| " -line set output mode to 'line'\n" |
| " -list set output mode to 'list'\n" |
| " -lookaside SIZE N use N entries of SZ bytes for lookaside memory\n" |
| #if defined(SQLITE_ENABLE_DESERIALIZE) |
| " -maxsize N maximum size for a --deserialize database\n" |
| #endif |
| " -memtrace trace all memory allocations and deallocations\n" |
| " -mmap N default mmap size set to N\n" |
| #ifdef SQLITE_ENABLE_MULTIPLEX |
| " -multiplex enable the multiplexor VFS\n" |
| #endif |
| " -newline SEP set output row separator. Default: '\\n'\n" |
| " -nullvalue TEXT set text string for NULL values. Default ''\n" |
| " -pagecache SIZE N use N slots of SZ bytes each for page cache memory\n" |
| " -quote set output mode to 'quote'\n" |
| " -readonly open the database read-only\n" |
| " -separator SEP set output column separator. Default: '|'\n" |
| #ifdef SQLITE_ENABLE_SORTER_REFERENCES |
| " -sorterref SIZE sorter references threshold size\n" |
| #endif |
| " -stats print memory stats before each finalize\n" |
| " -version show SQLite version\n" |
| " -vfs NAME use NAME as the default VFS\n" |
| #ifdef SQLITE_ENABLE_VFSTRACE |
| " -vfstrace enable tracing of all VFS calls\n" |
| #endif |
| #ifdef SQLITE_HAVE_ZLIB |
| " -zip open the file as a ZIP Archive\n" |
| #endif |
| ; |
| static void usage(int showDetail){ |
| utf8_printf(stderr, |
| "Usage: %s [OPTIONS] FILENAME [SQL]\n" |
| "FILENAME is the name of an SQLite database. A new database is created\n" |
| "if the file does not previously exist.\n", Argv0); |
| if( showDetail ){ |
| utf8_printf(stderr, "OPTIONS include:\n%s", zOptions); |
| }else{ |
| raw_printf(stderr, "Use the -help option for additional information\n"); |
| } |
| exit(1); |
| } |
| |
| /* |
| ** Internal check: Verify that the SQLite is uninitialized. Print a |
| ** error message if it is initialized. |
| */ |
| static void verify_uninitialized(void){ |
| if( sqlite3_config(-1)==SQLITE_MISUSE ){ |
| utf8_printf(stdout, "WARNING: attempt to configure SQLite after" |
| " initialization.\n"); |
| } |
| } |
| |
| /* |
| ** Initialize the state information in data |
| */ |
| static void main_init(ShellState *data) { |
| memset(data, 0, sizeof(*data)); |
| data->normalMode = data->cMode = data->mode = MODE_List; |
| data->autoExplain = 1; |
| memcpy(data->colSeparator,SEP_Column, 2); |
| memcpy(data->rowSeparator,SEP_Row, 2); |
| data->showHeader = 0; |
| data->shellFlgs = SHFLG_Lookaside; |
| verify_uninitialized(); |
| sqlite3_config(SQLITE_CONFIG_URI, 1); |
| sqlite3_config(SQLITE_CONFIG_LOG, shellLog, data); |
| sqlite3_config(SQLITE_CONFIG_MULTITHREAD); |
| sqlite3_snprintf(sizeof(mainPrompt), mainPrompt,"sqlite> "); |
| sqlite3_snprintf(sizeof(continuePrompt), continuePrompt," ...> "); |
| } |
| |
| /* |
| ** Output text to the console in a font that attracts extra attention. |
| */ |
| #ifdef _WIN32 |
| static void printBold(const char *zText){ |
| HANDLE out = GetStdHandle(STD_OUTPUT_HANDLE); |
| CONSOLE_SCREEN_BUFFER_INFO defaultScreenInfo; |
| GetConsoleScreenBufferInfo(out, &defaultScreenInfo); |
| SetConsoleTextAttribute(out, |
| FOREGROUND_RED|FOREGROUND_INTENSITY |
| ); |
| printf("%s", zText); |
| SetConsoleTextAttribute(out, defaultScreenInfo.wAttributes); |
| } |
| #else |
| static void printBold(const char *zText){ |
| printf("\033[1m%s\033[0m", zText); |
| } |
| #endif |
| |
| /* |
| ** Get the argument to an --option. Throw an error and die if no argument |
| ** is available. |
| */ |
| static char *cmdline_option_value(int argc, char **argv, int i){ |
| if( i==argc ){ |
| utf8_printf(stderr, "%s: Error: missing argument to %s\n", |
| argv[0], argv[argc-1]); |
| exit(1); |
| } |
| return argv[i]; |
| } |
| |
| #ifndef SQLITE_SHELL_IS_UTF8 |
| # if (defined(_WIN32) || defined(WIN32)) && defined(_MSC_VER) |
| # define SQLITE_SHELL_IS_UTF8 (0) |
| # else |
| # define SQLITE_SHELL_IS_UTF8 (1) |
| # endif |
| #endif |
| |
| #if SQLITE_SHELL_IS_UTF8 |
| int SQLITE_CDECL main(int argc, char **argv){ |
| #else |
| int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ |
| char **argv; |
| #endif |
| char *zErrMsg = 0; |
| ShellState data; |
| const char *zInitFile = 0; |
| int i; |
| int rc = 0; |
| int warnInmemoryDb = 0; |
| int readStdin = 1; |
| int nCmd = 0; |
| char **azCmd = 0; |
| const char *zVfs = 0; /* Value of -vfs command-line option */ |
| #if !SQLITE_SHELL_IS_UTF8 |
| char **argvToFree = 0; |
| int argcToFree = 0; |
| #endif |
| |
| setBinaryMode(stdin, 0); |
| setvbuf(stderr, 0, _IONBF, 0); /* Make sure stderr is unbuffered */ |
| stdin_is_interactive = isatty(0); |
| stdout_is_console = isatty(1); |
| |
| #if !defined(_WIN32_WCE) |
| if( getenv("SQLITE_DEBUG_BREAK") ){ |
| if( isatty(0) && isatty(2) ){ |
| fprintf(stderr, |
| "attach debugger to process %d and press any key to continue.\n", |
| GETPID()); |
| fgetc(stdin); |
| }else{ |
| #if defined(_WIN32) || defined(WIN32) |
| DebugBreak(); |
| #elif defined(SIGTRAP) |
| raise(SIGTRAP); |
| #endif |
| } |
| } |
| #endif |
| |
| #if USE_SYSTEM_SQLITE+0!=1 |
| if( strncmp(sqlite3_sourceid(),SQLITE_SOURCE_ID,60)!=0 ){ |
| utf8_printf(stderr, "SQLite header and source version mismatch\n%s\n%s\n", |
| sqlite3_sourceid(), SQLITE_SOURCE_ID); |
| exit(1); |
| } |
| #endif |
| main_init(&data); |
| |
| /* On Windows, we must translate command-line arguments into UTF-8. |
| ** The SQLite memory allocator subsystem has to be enabled in order to |
| ** do this. But we want to run an sqlite3_shutdown() afterwards so that |
| ** subsequent sqlite3_config() calls will work. So copy all results into |
| ** memory that does not come from the SQLite memory allocator. |
| */ |
| #if !SQLITE_SHELL_IS_UTF8 |
| sqlite3_initialize(); |
| argvToFree = malloc(sizeof(argv[0])*argc*2); |
| argcToFree = argc; |
| argv = argvToFree + argc; |
| if( argv==0 ) shell_out_of_memory(); |
| for(i=0; i<argc; i++){ |
| char *z = sqlite3_win32_unicode_to_utf8(wargv[i]); |
| int n; |
| if( z==0 ) shell_out_of_memory(); |
| n = (int)strlen(z); |
| argv[i] = malloc( n+1 ); |
| if( argv[i]==0 ) shell_out_of_memory(); |
| memcpy(argv[i], z, n+1); |
| argvToFree[i] = argv[i]; |
| sqlite3_free(z); |
| } |
| sqlite3_shutdown(); |
| #endif |
| |
| assert( argc>=1 && argv && argv[0] ); |
| Argv0 = argv[0]; |
| |
| /* Make sure we have a valid signal handler early, before anything |
| ** else is done. |
| */ |
| #ifdef SIGINT |
| signal(SIGINT, interrupt_handler); |
| #elif (defined(_WIN32) || defined(WIN32)) && !defined(_WIN32_WCE) |
| SetConsoleCtrlHandler(ConsoleCtrlHandler, TRUE); |
| #endif |
| |
| #ifdef SQLITE_SHELL_DBNAME_PROC |
| { |
| /* If the SQLITE_SHELL_DBNAME_PROC macro is defined, then it is the name |
| ** of a C-function that will provide the name of the database file. Use |
| ** this compile-time option to embed this shell program in larger |
| ** applications. */ |
| extern void SQLITE_SHELL_DBNAME_PROC(const char**); |
| SQLITE_SHELL_DBNAME_PROC(&data.zDbFilename); |
| warnInmemoryDb = 0; |
| } |
| #endif |
| |
| /* Do an initial pass through the command-line argument to locate |
| ** the name of the database file, the name of the initialization file, |
| ** the size of the alternative malloc heap, |
| ** and the first command to execute. |
| */ |
| verify_uninitialized(); |
| for(i=1; i<argc; i++){ |
| char *z; |
| z = argv[i]; |
| if( z[0]!='-' ){ |
| if( data.zDbFilename==0 ){ |
| data.zDbFilename = z; |
| }else{ |
| /* Excesss arguments are interpreted as SQL (or dot-commands) and |
| ** mean that nothing is read from stdin */ |
| readStdin = 0; |
| nCmd++; |
| azCmd = realloc(azCmd, sizeof(azCmd[0])*nCmd); |
| if( azCmd==0 ) shell_out_of_memory(); |
| azCmd[nCmd-1] = z; |
| } |
| } |
| if( z[1]=='-' ) z++; |
| if( strcmp(z,"-separator")==0 |
| || strcmp(z,"-nullvalue")==0 |
| || strcmp(z,"-newline")==0 |
| || strcmp(z,"-cmd")==0 |
| ){ |
| (void)cmdline_option_value(argc, argv, ++i); |
| }else if( strcmp(z,"-init")==0 ){ |
| zInitFile = cmdline_option_value(argc, argv, ++i); |
| }else if( strcmp(z,"-batch")==0 ){ |
| /* Need to check for batch mode here to so we can avoid printing |
| ** informational messages (like from process_sqliterc) before |
| ** we do the actual processing of arguments later in a second pass. |
| */ |
| stdin_is_interactive = 0; |
| }else if( strcmp(z,"-heap")==0 ){ |
| #if defined(SQLITE_ENABLE_MEMSYS3) || defined(SQLITE_ENABLE_MEMSYS5) |
| const char *zSize; |
| sqlite3_int64 szHeap; |
| |
| zSize = cmdline_option_value(argc, argv, ++i); |
| szHeap = integerValue(zSize); |
| if( szHeap>0x7fff0000 ) szHeap = 0x7fff0000; |
| sqlite3_config(SQLITE_CONFIG_HEAP, malloc((int)szHeap), (int)szHeap, 64); |
| #else |
| (void)cmdline_option_value(argc, argv, ++i); |
| #endif |
| }else if( strcmp(z,"-pagecache")==0 ){ |
| int n, sz; |
| sz = (int)integerValue(cmdline_option_value(argc,argv,++i)); |
| if( sz>70000 ) sz = 70000; |
| if( sz<0 ) sz = 0; |
| n = (int)integerValue(cmdline_option_value(argc,argv,++i)); |
| sqlite3_config(SQLITE_CONFIG_PAGECACHE, |
| (n>0 && sz>0) ? malloc(n*sz) : 0, sz, n); |
| data.shellFlgs |= SHFLG_Pagecache; |
| }else if( strcmp(z,"-lookaside")==0 ){ |
| int n, sz; |
| sz = (int)integerValue(cmdline_option_value(argc,argv,++i)); |
| if( sz<0 ) sz = 0; |
| n = (int)integerValue(cmdline_option_value(argc,argv,++i)); |
| if( n<0 ) n = 0; |
| sqlite3_config(SQLITE_CONFIG_LOOKASIDE, sz, n); |
| if( sz*n==0 ) data.shellFlgs &= ~SHFLG_Lookaside; |
| #ifdef SQLITE_ENABLE_VFSTRACE |
| }else if( strcmp(z,"-vfstrace")==0 ){ |
| extern int vfstrace_register( |
| const char *zTraceName, |
| const char *zOldVfsName, |
| int (*xOut)(const char*,void*), |
| void *pOutArg, |
| int makeDefault |
| ); |
| vfstrace_register("trace",0,(int(*)(const char*,void*))fputs,stderr,1); |
| #endif |
| #ifdef SQLITE_ENABLE_MULTIPLEX |
| }else if( strcmp(z,"-multiplex")==0 ){ |
| extern int sqlite3_multiple_initialize(const char*,int); |
| sqlite3_multiplex_initialize(0, 1); |
| #endif |
| }else if( strcmp(z,"-mmap")==0 ){ |
| sqlite3_int64 sz = integerValue(cmdline_option_value(argc,argv,++i)); |
| sqlite3_config(SQLITE_CONFIG_MMAP_SIZE, sz, sz); |
| #ifdef SQLITE_ENABLE_SORTER_REFERENCES |
| }else if( strcmp(z,"-sorterref")==0 ){ |
| sqlite3_int64 sz = integerValue(cmdline_option_value(argc,argv,++i)); |
| sqlite3_config(SQLITE_CONFIG_SORTERREF_SIZE, (int)sz); |
| #endif |
| }else if( strcmp(z,"-vfs")==0 ){ |
| zVfs = cmdline_option_value(argc, argv, ++i); |
| #ifdef SQLITE_HAVE_ZLIB |
| }else if( strcmp(z,"-zip")==0 ){ |
| data.openMode = SHELL_OPEN_ZIPFILE; |
| #endif |
| }else if( strcmp(z,"-append")==0 ){ |
| data.openMode = SHELL_OPEN_APPENDVFS; |
| #ifdef SQLITE_ENABLE_DESERIALIZE |
| }else if( strcmp(z,"-deserialize")==0 ){ |
| data.openMode = SHELL_OPEN_DESERIALIZE; |
| }else if( strcmp(z,"-maxsize")==0 && i+1<argc ){ |
| data.szMax = integerValue(argv[++i]); |
| #endif |
| }else if( strcmp(z,"-readonly")==0 ){ |
| data.openMode = SHELL_OPEN_READONLY; |
| #if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB) |
| }else if( strncmp(z, "-A",2)==0 ){ |
| /* All remaining command-line arguments are passed to the ".archive" |
| ** command, so ignore them */ |
| break; |
| #endif |
| }else if( strcmp(z, "-memtrace")==0 ){ |
| sqlite3MemTraceActivate(stderr); |
| } |
| } |
| verify_uninitialized(); |
| |
| |
| #ifdef SQLITE_SHELL_INIT_PROC |
| { |
| /* If the SQLITE_SHELL_INIT_PROC macro is defined, then it is the name |
| ** of a C-function that will perform initialization actions on SQLite that |
| ** occur just before or after sqlite3_initialize(). Use this compile-time |
| ** option to embed this shell program in larger applications. */ |
| extern void SQLITE_SHELL_INIT_PROC(void); |
| SQLITE_SHELL_INIT_PROC(); |
| } |
| #else |
| /* All the sqlite3_config() calls have now been made. So it is safe |
| ** to call sqlite3_initialize() and process any command line -vfs option. */ |
| sqlite3_initialize(); |
| #endif |
| |
| if( zVfs ){ |
| sqlite3_vfs *pVfs = sqlite3_vfs_find(zVfs); |
| if( pVfs ){ |
| sqlite3_vfs_register(pVfs, 1); |
| }else{ |
| utf8_printf(stderr, "no such VFS: \"%s\"\n", argv[i]); |
| exit(1); |
| } |
| } |
| |
| if( data.zDbFilename==0 ){ |
| #ifndef SQLITE_OMIT_MEMORYDB |
| data.zDbFilename = ":memory:"; |
| warnInmemoryDb = argc==1; |
| #else |
| utf8_printf(stderr,"%s: Error: no database filename specified\n", Argv0); |
| return 1; |
| #endif |
| } |
| data.out = stdout; |
| sqlite3_appendvfs_init(0,0,0); |
| |
| /* Go ahead and open the database file if it already exists. If the |
| ** file does not exist, delay opening it. This prevents empty database |
| ** files from being created if a user mistypes the database name argument |
| ** to the sqlite command-line tool. |
| */ |
| if( access(data.zDbFilename, 0)==0 ){ |
| open_db(&data, 0); |
| } |
| |
| /* Process the initialization file if there is one. If no -init option |
| ** is given on the command line, look for a file named ~/.sqliterc and |
| ** try to process it. |
| */ |
| process_sqliterc(&data,zInitFile); |
| |
| /* Make a second pass through the command-line argument and set |
| ** options. This second pass is delayed until after the initialization |
| ** file is processed so that the command-line arguments will override |
| ** settings in the initialization file. |
| */ |
| for(i=1; i<argc; i++){ |
| char *z = argv[i]; |
| if( z[0]!='-' ) continue; |
| if( z[1]=='-' ){ z++; } |
| if( strcmp(z,"-init")==0 ){ |
| i++; |
| }else if( strcmp(z,"-html")==0 ){ |
| data.mode = MODE_Html; |
| }else if( strcmp(z,"-list")==0 ){ |
| data.mode = MODE_List; |
| }else if( strcmp(z,"-quote")==0 ){ |
| data.mode = MODE_Quote; |
| }else if( strcmp(z,"-line")==0 ){ |
| data.mode = MODE_Line; |
| }else if( strcmp(z,"-column")==0 ){ |
| data.mode = MODE_Column; |
| }else if( strcmp(z,"-csv")==0 ){ |
| data.mode = MODE_Csv; |
| memcpy(data.colSeparator,",",2); |
| #ifdef SQLITE_HAVE_ZLIB |
| }else if( strcmp(z,"-zip")==0 ){ |
| data.openMode = SHELL_OPEN_ZIPFILE; |
| #endif |
| }else if( strcmp(z,"-append")==0 ){ |
| data.openMode = SHELL_OPEN_APPENDVFS; |
| #ifdef SQLITE_ENABLE_DESERIALIZE |
| }else if( strcmp(z,"-deserialize")==0 ){ |
| data.openMode = SHELL_OPEN_DESERIALIZE; |
| }else if( strcmp(z,"-maxsize")==0 && i+1<argc ){ |
| data.szMax = integerValue(argv[++i]); |
| #endif |
| }else if( strcmp(z,"-readonly")==0 ){ |
| data.openMode = SHELL_OPEN_READONLY; |
| }else if( strcmp(z,"-ascii")==0 ){ |
| data.mode = MODE_Ascii; |
| sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator, |
| SEP_Unit); |
| sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator, |
| SEP_Record); |
| }else if( strcmp(z,"-separator")==0 ){ |
| sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator, |
| "%s",cmdline_option_value(argc,argv,++i)); |
| }else if( strcmp(z,"-newline")==0 ){ |
| sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator, |
| "%s",cmdline_option_value(argc,argv,++i)); |
| }else if( strcmp(z,"-nullvalue")==0 ){ |
| sqlite3_snprintf(sizeof(data.nullValue), data.nullValue, |
| "%s",cmdline_option_value(argc,argv,++i)); |
| }else if( strcmp(z,"-header")==0 ){ |
| data.showHeader = 1; |
| }else if( strcmp(z,"-noheader")==0 ){ |
| data.showHeader = 0; |
| }else if( strcmp(z,"-echo")==0 ){ |
| ShellSetFlag(&data, SHFLG_Echo); |
| }else if( strcmp(z,"-eqp")==0 ){ |
| data.autoEQP = AUTOEQP_on; |
| }else if( strcmp(z,"-eqpfull")==0 ){ |
| data.autoEQP = AUTOEQP_full; |
| }else if( strcmp(z,"-stats")==0 ){ |
| data.statsOn = 1; |
| }else if( strcmp(z,"-scanstats")==0 ){ |
| data.scanstatsOn = 1; |
| }else if( strcmp(z,"-backslash")==0 ){ |
| /* Undocumented command-line option: -backslash |
| ** Causes C-style backslash escapes to be evaluated in SQL statements |
| ** prior to sending the SQL into SQLite. Useful for injecting |
| ** crazy bytes in the middle of SQL statements for testing and debugging. |
| */ |
| ShellSetFlag(&data, SHFLG_Backslash); |
| }else if( strcmp(z,"-bail")==0 ){ |
| bail_on_error = 1; |
| }else if( strcmp(z,"-version")==0 ){ |
| printf("%s %s\n", sqlite3_libversion(), sqlite3_sourceid()); |
| return 0; |
| }else if( strcmp(z,"-interactive")==0 ){ |
| stdin_is_interactive = 1; |
| }else if( strcmp(z,"-batch")==0 ){ |
| stdin_is_interactive = 0; |
| }else if( strcmp(z,"-heap")==0 ){ |
| i++; |
| }else if( strcmp(z,"-pagecache")==0 ){ |
| i+=2; |
| }else if( strcmp(z,"-lookaside")==0 ){ |
| i+=2; |
| }else if( strcmp(z,"-mmap")==0 ){ |
| i++; |
| }else if( strcmp(z,"-memtrace")==0 ){ |
| i++; |
| #ifdef SQLITE_ENABLE_SORTER_REFERENCES |
| }else if( strcmp(z,"-sorterref")==0 ){ |
| i++; |
| #endif |
| }else if( strcmp(z,"-vfs")==0 ){ |
| i++; |
| #ifdef SQLITE_ENABLE_VFSTRACE |
| }else if( strcmp(z,"-vfstrace")==0 ){ |
| i++; |
| #endif |
| #ifdef SQLITE_ENABLE_MULTIPLEX |
| }else if( strcmp(z,"-multiplex")==0 ){ |
| i++; |
| #endif |
| }else if( strcmp(z,"-help")==0 ){ |
| usage(1); |
| }else if( strcmp(z,"-cmd")==0 ){ |
| /* Run commands that follow -cmd first and separately from commands |
| ** that simply appear on the command-line. This seems goofy. It would |
| ** be better if all commands ran in the order that they appear. But |
| ** we retain the goofy behavior for historical compatibility. */ |
| if( i==argc-1 ) break; |
| z = cmdline_option_value(argc,argv,++i); |
| if( z[0]=='.' ){ |
| rc = do_meta_command(z, &data); |
| if( rc && bail_on_error ) return rc==2 ? 0 : rc; |
| }else{ |
| open_db(&data, 0); |
| rc = shell_exec(&data, z, &zErrMsg); |
| if( zErrMsg!=0 ){ |
| utf8_printf(stderr,"Error: %s\n", zErrMsg); |
| if( bail_on_error ) return rc!=0 ? rc : 1; |
| }else if( rc!=0 ){ |
| utf8_printf(stderr,"Error: unable to process SQL \"%s\"\n", z); |
| if( bail_on_error ) return rc; |
| } |
| } |
| #if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB) |
| }else if( strncmp(z, "-A", 2)==0 ){ |
| if( nCmd>0 ){ |
| utf8_printf(stderr, "Error: cannot mix regular SQL or dot-commands" |
| " with \"%s\"\n", z); |
| return 1; |
| } |
| open_db(&data, OPEN_DB_ZIPFILE); |
| if( z[2] ){ |
| argv[i] = &z[2]; |
| arDotCommand(&data, 1, argv+(i-1), argc-(i-1)); |
| }else{ |
| arDotCommand(&data, 1, argv+i, argc-i); |
| } |
| readStdin = 0; |
| break; |
| #endif |
| }else{ |
| utf8_printf(stderr,"%s: Error: unknown option: %s\n", Argv0, z); |
| raw_printf(stderr,"Use -help for a list of options.\n"); |
| return 1; |
| } |
| data.cMode = data.mode; |
| } |
| |
| if( !readStdin ){ |
| /* Run all arguments that do not begin with '-' as if they were separate |
| ** command-line inputs, except for the argToSkip argument which contains |
| ** the database filename. |
| */ |
| for(i=0; i<nCmd; i++){ |
| if( azCmd[i][0]=='.' ){ |
| rc = do_meta_command(azCmd[i], &data); |
| if( rc ) return rc==2 ? 0 : rc; |
| }else{ |
| open_db(&data, 0); |
| rc = shell_exec(&data, azCmd[i], &zErrMsg); |
| if( zErrMsg!=0 ){ |
| utf8_printf(stderr,"Error: %s\n", zErrMsg); |
| return rc!=0 ? rc : 1; |
| }else if( rc!=0 ){ |
| utf8_printf(stderr,"Error: unable to process SQL: %s\n", azCmd[i]); |
| return rc; |
| } |
| } |
| } |
| free(azCmd); |
| }else{ |
| /* Run commands received from standard input |
| */ |
| if( stdin_is_interactive ){ |
| char *zHome; |
| char *zHistory; |
| int nHistory; |
| printf( |
| "SQLite version %s %.19s\n" /*extra-version-info*/ |
| "Enter \".help\" for usage hints.\n", |
| sqlite3_libversion(), sqlite3_sourceid() |
| ); |
| if( warnInmemoryDb ){ |
| printf("Connected to a "); |
| printBold("transient in-memory database"); |
| printf(".\nUse \".open FILENAME\" to reopen on a " |
| "persistent database.\n"); |
| } |
| zHistory = getenv("SQLITE_HISTORY"); |
| if( zHistory ){ |
| zHistory = strdup(zHistory); |
| }else if( (zHome = find_home_dir(0))!=0 ){ |
| nHistory = strlen30(zHome) + 20; |
| if( (zHistory = malloc(nHistory))!=0 ){ |
| sqlite3_snprintf(nHistory, zHistory,"%s/.sqlite_history", zHome); |
| } |
| } |
| if( zHistory ){ shell_read_history(zHistory); } |
| #if HAVE_READLINE || HAVE_EDITLINE |
| rl_attempted_completion_function = readline_completion; |
| #elif HAVE_LINENOISE |
| linenoiseSetCompletionCallback(linenoise_completion); |
| #endif |
| data.in = 0; |
| rc = process_input(&data); |
| if( zHistory ){ |
| shell_stifle_history(2000); |
| shell_write_history(zHistory); |
| free(zHistory); |
| } |
| }else{ |
| data.in = stdin; |
| rc = process_input(&data); |
| } |
| } |
| set_table_name(&data, 0); |
| if( data.db ){ |
| session_close_all(&data); |
| close_db(data.db); |
| } |
| sqlite3_free(data.zFreeOnClose); |
| find_home_dir(1); |
| output_reset(&data); |
| data.doXdgOpen = 0; |
| clearTempFile(&data); |
| #if !SQLITE_SHELL_IS_UTF8 |
| for(i=0; i<argcToFree; i++) free(argvToFree[i]); |
| free(argvToFree); |
| #endif |
| /* Clear the global data structure so that valgrind will detect memory |
| ** leaks */ |
| memset(&data, 0, sizeof(data)); |
| return rc; |
| } |