| /** |
| * Copyright (c) 2016-present, Yann Collet, Facebook, Inc. |
| * All rights reserved. |
| * |
| * This source code is licensed under the BSD-style license found in the |
| * LICENSE file in the root directory of this source tree. An additional grant |
| * of patent rights can be found in the PATENTS file in the same directory. |
| */ |
| |
| |
| /* ************************************* |
| * Compiler Options |
| ***************************************/ |
| #ifdef _MSC_VER /* Visual */ |
| # pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */ |
| # pragma warning(disable : 4204) /* non-constant aggregate initializer */ |
| #endif |
| #if defined(__MINGW32__) && !defined(_POSIX_SOURCE) |
| # define _POSIX_SOURCE 1 /* disable %llu warnings with MinGW on Windows */ |
| #endif |
| |
| |
| /*-************************************* |
| * Includes |
| ***************************************/ |
| #include "platform.h" /* Large Files support, SET_BINARY_MODE */ |
| #include "util.h" /* UTIL_getFileSize */ |
| #include <stdio.h> /* fprintf, fopen, fread, _fileno, stdin, stdout */ |
| #include <stdlib.h> /* malloc, free */ |
| #include <string.h> /* strcmp, strlen */ |
| #include <time.h> /* clock */ |
| #include <errno.h> /* errno */ |
| |
| #if defined (_MSC_VER) |
| # include <sys/stat.h> |
| # include <io.h> |
| #endif |
| |
| #include "mem.h" |
| #include "fileio.h" |
| #define ZSTD_STATIC_LINKING_ONLY /* ZSTD_magicNumber, ZSTD_frameHeaderSize_max */ |
| #include "zstd.h" |
| #ifdef ZSTD_MULTITHREAD |
| # include "zstdmt_compress.h" |
| #endif |
| #if defined(ZSTD_GZCOMPRESS) || defined(ZSTD_GZDECOMPRESS) |
| # include <zlib.h> |
| # if !defined(z_const) |
| # define z_const |
| # endif |
| #endif |
| #if defined(ZSTD_LZMACOMPRESS) || defined(ZSTD_LZMADECOMPRESS) |
| # include <lzma.h> |
| #endif |
| |
| #define LZ4_MAGICNUMBER 0x184D2204 |
| #if defined(ZSTD_LZ4COMPRESS) || defined(ZSTD_LZ4DECOMPRESS) |
| # include <lz4frame.h> |
| # include <lz4.h> |
| #endif |
| |
| |
| /*-************************************* |
| * Constants |
| ***************************************/ |
| #define KB *(1<<10) |
| #define MB *(1<<20) |
| #define GB *(1U<<30) |
| |
| #define _1BIT 0x01 |
| #define _2BITS 0x03 |
| #define _3BITS 0x07 |
| #define _4BITS 0x0F |
| #define _6BITS 0x3F |
| #define _8BITS 0xFF |
| |
| #define BLOCKSIZE (128 KB) |
| #define ROLLBUFFERSIZE (BLOCKSIZE*8*64) |
| |
| #define FIO_FRAMEHEADERSIZE 5 /* as a define, because needed to allocated table on stack */ |
| #define FSE_CHECKSUM_SEED 0 |
| |
| #define CACHELINE 64 |
| |
| #define DICTSIZE_MAX (32 MB) /* protection against large input (attack scenario) */ |
| |
| #define FNSPACE 30 |
| |
| |
| /*-************************************* |
| * Macros |
| ***************************************/ |
| #define DISPLAY(...) fprintf(stderr, __VA_ARGS__) |
| #define DISPLAYLEVEL(l, ...) { if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); } } |
| static int g_displayLevel = 2; /* 0 : no display; 1: errors; 2 : + result + interaction + warnings; 3 : + progression; 4 : + information */ |
| void FIO_setNotificationLevel(unsigned level) { g_displayLevel=level; } |
| |
| #define DISPLAYUPDATE(l, ...) { if (g_displayLevel>=l) { \ |
| if ((clock() - g_time > refreshRate) || (g_displayLevel>=4)) \ |
| { g_time = clock(); DISPLAY(__VA_ARGS__); \ |
| if (g_displayLevel>=4) fflush(stderr); } } } |
| static const clock_t refreshRate = CLOCKS_PER_SEC * 15 / 100; |
| static clock_t g_time = 0; |
| |
| #undef MIN |
| #define MIN(a,b) ((a) < (b) ? (a) : (b)) |
| |
| |
| /* ************************************************************ |
| * Avoid fseek()'s 2GiB barrier with MSVC, MacOS, *BSD, MinGW |
| ***************************************************************/ |
| #if defined(_MSC_VER) && _MSC_VER >= 1400 |
| # define LONG_SEEK _fseeki64 |
| #elif !defined(__64BIT__) && (PLATFORM_POSIX_VERSION >= 200112L) /* No point defining Large file for 64 bit */ |
| # define LONG_SEEK fseeko |
| #elif defined(__MINGW32__) && !defined(__STRICT_ANSI__) && !defined(__NO_MINGW_LFS) && defined(__MSVCRT__) |
| # define LONG_SEEK fseeko64 |
| #elif defined(_WIN32) && !defined(__DJGPP__) |
| # include <windows.h> |
| static int LONG_SEEK(FILE* file, __int64 offset, int origin) { |
| LARGE_INTEGER off; |
| DWORD method; |
| off.QuadPart = offset; |
| if (origin == SEEK_END) |
| method = FILE_END; |
| else if (origin == SEEK_CUR) |
| method = FILE_CURRENT; |
| else |
| method = FILE_BEGIN; |
| |
| if (SetFilePointerEx((HANDLE) _get_osfhandle(_fileno(file)), off, NULL, method)) |
| return 0; |
| else |
| return -1; |
| } |
| #else |
| # define LONG_SEEK fseek |
| #endif |
| |
| |
| /*-************************************* |
| * Local Parameters - Not thread safe |
| ***************************************/ |
| static FIO_compressionType_t g_compressionType = FIO_zstdCompression; |
| void FIO_setCompressionType(FIO_compressionType_t compressionType) { g_compressionType = compressionType; } |
| static U32 g_overwrite = 0; |
| void FIO_overwriteMode(void) { g_overwrite=1; } |
| static U32 g_sparseFileSupport = 1; /* 0 : no sparse allowed; 1: auto (file yes, stdout no); 2: force sparse */ |
| void FIO_setSparseWrite(unsigned sparse) { g_sparseFileSupport=sparse; } |
| static U32 g_dictIDFlag = 1; |
| void FIO_setDictIDFlag(unsigned dictIDFlag) { g_dictIDFlag = dictIDFlag; } |
| static U32 g_checksumFlag = 1; |
| void FIO_setChecksumFlag(unsigned checksumFlag) { g_checksumFlag = checksumFlag; } |
| static U32 g_removeSrcFile = 0; |
| void FIO_setRemoveSrcFile(unsigned flag) { g_removeSrcFile = (flag>0); } |
| static U32 g_memLimit = 0; |
| void FIO_setMemLimit(unsigned memLimit) { g_memLimit = memLimit; } |
| static U32 g_nbThreads = 1; |
| void FIO_setNbThreads(unsigned nbThreads) { |
| #ifndef ZSTD_MULTITHREAD |
| if (nbThreads > 1) DISPLAYLEVEL(2, "Note : multi-threading is disabled \n"); |
| #endif |
| g_nbThreads = nbThreads; |
| } |
| static U32 g_blockSize = 0; |
| void FIO_setBlockSize(unsigned blockSize) { |
| if (blockSize && g_nbThreads==1) |
| DISPLAYLEVEL(2, "Setting block size is useless in single-thread mode \n"); |
| #ifdef ZSTD_MULTITHREAD |
| if (blockSize-1 < ZSTDMT_SECTION_SIZE_MIN-1) /* intentional underflow */ |
| DISPLAYLEVEL(2, "Note : minimum block size is %u KB \n", (ZSTDMT_SECTION_SIZE_MIN>>10)); |
| #endif |
| g_blockSize = blockSize; |
| } |
| #define FIO_OVERLAP_LOG_NOTSET 9999 |
| static U32 g_overlapLog = FIO_OVERLAP_LOG_NOTSET; |
| void FIO_setOverlapLog(unsigned overlapLog){ |
| if (overlapLog && g_nbThreads==1) |
| DISPLAYLEVEL(2, "Setting overlapLog is useless in single-thread mode \n"); |
| g_overlapLog = overlapLog; |
| } |
| |
| |
| /*-************************************* |
| * Exceptions |
| ***************************************/ |
| #ifndef DEBUG |
| # define DEBUG 0 |
| #endif |
| #define DEBUGOUTPUT(...) if (DEBUG) DISPLAY(__VA_ARGS__); |
| #define EXM_THROW(error, ...) \ |
| { \ |
| DEBUGOUTPUT("Error defined at %s, line %i : \n", __FILE__, __LINE__); \ |
| DISPLAYLEVEL(1, "Error %i : ", error); \ |
| DISPLAYLEVEL(1, __VA_ARGS__); \ |
| DISPLAYLEVEL(1, " \n"); \ |
| exit(error); \ |
| } |
| |
| |
| /*-************************************* |
| * Functions |
| ***************************************/ |
| /** FIO_remove() : |
| * @result : Unlink `fileName`, even if it's read-only */ |
| static int FIO_remove(const char* path) |
| { |
| #if defined(_WIN32) || defined(WIN32) |
| /* windows doesn't allow remove read-only files, |
| * so try to make it writable first */ |
| chmod(path, _S_IWRITE); |
| #endif |
| return remove(path); |
| } |
| |
| /** FIO_openSrcFile() : |
| * condition : `dstFileName` must be non-NULL. |
| * @result : FILE* to `dstFileName`, or NULL if it fails */ |
| static FILE* FIO_openSrcFile(const char* srcFileName) |
| { |
| FILE* f; |
| |
| if (!strcmp (srcFileName, stdinmark)) { |
| DISPLAYLEVEL(4,"Using stdin for input\n"); |
| f = stdin; |
| SET_BINARY_MODE(stdin); |
| } else { |
| if (!UTIL_isRegFile(srcFileName)) { |
| DISPLAYLEVEL(1, "zstd: %s is not a regular file -- ignored \n", srcFileName); |
| return NULL; |
| } |
| f = fopen(srcFileName, "rb"); |
| if ( f==NULL ) DISPLAYLEVEL(1, "zstd: %s: %s \n", srcFileName, strerror(errno)); |
| } |
| |
| return f; |
| } |
| |
| /** FIO_openDstFile() : |
| * condition : `dstFileName` must be non-NULL. |
| * @result : FILE* to `dstFileName`, or NULL if it fails */ |
| static FILE* FIO_openDstFile(const char* dstFileName) |
| { |
| FILE* f; |
| |
| if (!strcmp (dstFileName, stdoutmark)) { |
| DISPLAYLEVEL(4,"Using stdout for output\n"); |
| f = stdout; |
| SET_BINARY_MODE(stdout); |
| if (g_sparseFileSupport==1) { |
| g_sparseFileSupport = 0; |
| DISPLAYLEVEL(4, "Sparse File Support is automatically disabled on stdout ; try --sparse \n"); |
| } |
| } else { |
| if (g_sparseFileSupport == 1) { |
| g_sparseFileSupport = ZSTD_SPARSE_DEFAULT; |
| } |
| if (strcmp (dstFileName, nulmark)) { /* Check if destination file already exists */ |
| f = fopen( dstFileName, "rb" ); |
| if (f != 0) { /* dest file exists, prompt for overwrite authorization */ |
| fclose(f); |
| if (!g_overwrite) { |
| if (g_displayLevel <= 1) { |
| /* No interaction possible */ |
| DISPLAY("zstd: %s already exists; not overwritten \n", dstFileName); |
| return NULL; |
| } |
| DISPLAY("zstd: %s already exists; do you wish to overwrite (y/N) ? ", dstFileName); |
| { int ch = getchar(); |
| if ((ch!='Y') && (ch!='y')) { |
| DISPLAY(" not overwritten \n"); |
| return NULL; |
| } |
| while ((ch!=EOF) && (ch!='\n')) ch = getchar(); /* flush rest of input line */ |
| } |
| } |
| |
| /* need to unlink */ |
| FIO_remove(dstFileName); |
| } } |
| f = fopen( dstFileName, "wb" ); |
| if (f==NULL) DISPLAYLEVEL(1, "zstd: %s: %s\n", dstFileName, strerror(errno)); |
| } |
| |
| return f; |
| } |
| |
| |
| /*! FIO_createDictBuffer() : |
| * creates a buffer, pointed by `*bufferPtr`, |
| * loads `filename` content into it, up to DICTSIZE_MAX bytes. |
| * @return : loaded size |
| * if fileName==NULL, returns 0 and a NULL pointer |
| */ |
| static size_t FIO_createDictBuffer(void** bufferPtr, const char* fileName) |
| { |
| FILE* fileHandle; |
| U64 fileSize; |
| |
| *bufferPtr = NULL; |
| if (fileName == NULL) return 0; |
| |
| DISPLAYLEVEL(4,"Loading %s as dictionary \n", fileName); |
| fileHandle = fopen(fileName, "rb"); |
| if (fileHandle==0) EXM_THROW(31, "zstd: %s: %s", fileName, strerror(errno)); |
| fileSize = UTIL_getFileSize(fileName); |
| if (fileSize > DICTSIZE_MAX) EXM_THROW(32, "Dictionary file %s is too large (> %u MB)", fileName, DICTSIZE_MAX >> 20); /* avoid extreme cases */ |
| *bufferPtr = malloc((size_t)fileSize); |
| if (*bufferPtr==NULL) EXM_THROW(34, "zstd: %s", strerror(errno)); |
| { size_t const readSize = fread(*bufferPtr, 1, (size_t)fileSize, fileHandle); |
| if (readSize!=fileSize) EXM_THROW(35, "Error reading dictionary file %s", fileName); } |
| fclose(fileHandle); |
| return (size_t)fileSize; |
| } |
| |
| #ifndef ZSTD_NOCOMPRESS |
| |
| /*-********************************************************************** |
| * Compression |
| ************************************************************************/ |
| typedef struct { |
| FILE* srcFile; |
| FILE* dstFile; |
| void* srcBuffer; |
| size_t srcBufferSize; |
| void* dstBuffer; |
| size_t dstBufferSize; |
| #ifdef ZSTD_MULTITHREAD |
| ZSTDMT_CCtx* cctx; |
| #else |
| ZSTD_CStream* cctx; |
| #endif |
| } cRess_t; |
| |
| static cRess_t FIO_createCResources(const char* dictFileName, int cLevel, |
| U64 srcSize, int srcRegFile, |
| ZSTD_compressionParameters* comprParams) { |
| cRess_t ress; |
| memset(&ress, 0, sizeof(ress)); |
| |
| #ifdef ZSTD_MULTITHREAD |
| ress.cctx = ZSTDMT_createCCtx(g_nbThreads); |
| if (ress.cctx == NULL) |
| EXM_THROW(30, "zstd: allocation error : can't create ZSTD_CStream"); |
| if ((cLevel==ZSTD_maxCLevel()) && (g_overlapLog==FIO_OVERLAP_LOG_NOTSET)) |
| /* use complete window for overlap */ |
| ZSTDMT_setMTCtxParameter(ress.cctx, ZSTDMT_p_overlapSectionLog, 9); |
| if (g_overlapLog != FIO_OVERLAP_LOG_NOTSET) |
| ZSTDMT_setMTCtxParameter(ress.cctx, ZSTDMT_p_overlapSectionLog, g_overlapLog); |
| #else |
| ress.cctx = ZSTD_createCStream(); |
| if (ress.cctx == NULL) |
| EXM_THROW(30, "zstd: allocation error : can't create ZSTD_CStream"); |
| #endif |
| ress.srcBufferSize = ZSTD_CStreamInSize(); |
| ress.srcBuffer = malloc(ress.srcBufferSize); |
| ress.dstBufferSize = ZSTD_CStreamOutSize(); |
| ress.dstBuffer = malloc(ress.dstBufferSize); |
| if (!ress.srcBuffer || !ress.dstBuffer) |
| EXM_THROW(31, "zstd: allocation error : not enough memory"); |
| |
| /* dictionary */ |
| { void* dictBuffer; |
| size_t const dictBuffSize = FIO_createDictBuffer(&dictBuffer, dictFileName); /* works with dictFileName==NULL */ |
| if (dictFileName && (dictBuffer==NULL)) |
| EXM_THROW(32, "zstd: allocation error : can't create dictBuffer"); |
| { ZSTD_parameters params = ZSTD_getParams(cLevel, srcSize, dictBuffSize); |
| params.fParams.contentSizeFlag = srcRegFile; |
| params.fParams.checksumFlag = g_checksumFlag; |
| params.fParams.noDictIDFlag = !g_dictIDFlag; |
| if (comprParams->windowLog) params.cParams.windowLog = comprParams->windowLog; |
| if (comprParams->chainLog) params.cParams.chainLog = comprParams->chainLog; |
| if (comprParams->hashLog) params.cParams.hashLog = comprParams->hashLog; |
| if (comprParams->searchLog) params.cParams.searchLog = comprParams->searchLog; |
| if (comprParams->searchLength) params.cParams.searchLength = comprParams->searchLength; |
| if (comprParams->targetLength) params.cParams.targetLength = comprParams->targetLength; |
| if (comprParams->strategy) params.cParams.strategy = (ZSTD_strategy) comprParams->strategy; |
| #ifdef ZSTD_MULTITHREAD |
| { size_t const errorCode = ZSTDMT_initCStream_advanced(ress.cctx, dictBuffer, dictBuffSize, params, srcSize); |
| if (ZSTD_isError(errorCode)) EXM_THROW(33, "Error initializing CStream : %s", ZSTD_getErrorName(errorCode)); |
| ZSTDMT_setMTCtxParameter(ress.cctx, ZSTDMT_p_sectionSize, g_blockSize); |
| #else |
| { size_t const errorCode = ZSTD_initCStream_advanced(ress.cctx, dictBuffer, dictBuffSize, params, srcSize); |
| if (ZSTD_isError(errorCode)) EXM_THROW(33, "Error initializing CStream : %s", ZSTD_getErrorName(errorCode)); |
| #endif |
| } } |
| free(dictBuffer); |
| } |
| |
| return ress; |
| } |
| |
| static void FIO_freeCResources(cRess_t ress) |
| { |
| free(ress.srcBuffer); |
| free(ress.dstBuffer); |
| #ifdef ZSTD_MULTITHREAD |
| ZSTDMT_freeCCtx(ress.cctx); |
| #else |
| ZSTD_freeCStream(ress.cctx); /* never fails */ |
| #endif |
| } |
| |
| |
| #ifdef ZSTD_GZCOMPRESS |
| static unsigned long long FIO_compressGzFrame(cRess_t* ress, |
| const char* srcFileName, U64 const srcFileSize, |
| int compressionLevel, U64* readsize) |
| { |
| unsigned long long inFileSize = 0, outFileSize = 0; |
| z_stream strm; |
| int ret; |
| |
| if (compressionLevel > Z_BEST_COMPRESSION) |
| compressionLevel = Z_BEST_COMPRESSION; |
| |
| strm.zalloc = Z_NULL; |
| strm.zfree = Z_NULL; |
| strm.opaque = Z_NULL; |
| |
| ret = deflateInit2(&strm, compressionLevel, Z_DEFLATED, |
| 15 /* maxWindowLogSize */ + 16 /* gzip only */, |
| 8, Z_DEFAULT_STRATEGY); /* see http://www.zlib.net/manual.html */ |
| if (ret != Z_OK) |
| EXM_THROW(71, "zstd: %s: deflateInit2 error %d \n", srcFileName, ret); |
| |
| strm.next_in = 0; |
| strm.avail_in = 0; |
| strm.next_out = (Bytef*)ress->dstBuffer; |
| strm.avail_out = (uInt)ress->dstBufferSize; |
| |
| while (1) { |
| if (strm.avail_in == 0) { |
| size_t const inSize = fread(ress->srcBuffer, 1, ress->srcBufferSize, ress->srcFile); |
| if (inSize == 0) break; |
| inFileSize += inSize; |
| strm.next_in = (z_const unsigned char*)ress->srcBuffer; |
| strm.avail_in = (uInt)inSize; |
| } |
| ret = deflate(&strm, Z_NO_FLUSH); |
| if (ret != Z_OK) |
| EXM_THROW(72, "zstd: %s: deflate error %d \n", srcFileName, ret); |
| { size_t const decompBytes = ress->dstBufferSize - strm.avail_out; |
| if (decompBytes) { |
| if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes) |
| EXM_THROW(73, "Write error : cannot write to output file"); |
| outFileSize += decompBytes; |
| strm.next_out = (Bytef*)ress->dstBuffer; |
| strm.avail_out = (uInt)ress->dstBufferSize; |
| } |
| } |
| if (!srcFileSize) |
| DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%%", |
| (U32)(inFileSize>>20), |
| (double)outFileSize/inFileSize*100) |
| else |
| DISPLAYUPDATE(2, "\rRead : %u / %u MB ==> %.2f%%", |
| (U32)(inFileSize>>20), (U32)(srcFileSize>>20), |
| (double)outFileSize/inFileSize*100); |
| } |
| |
| while (1) { |
| ret = deflate(&strm, Z_FINISH); |
| { size_t const decompBytes = ress->dstBufferSize - strm.avail_out; |
| if (decompBytes) { |
| if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes) |
| EXM_THROW(75, "Write error : cannot write to output file"); |
| outFileSize += decompBytes; |
| strm.next_out = (Bytef*)ress->dstBuffer; |
| strm.avail_out = (uInt)ress->dstBufferSize; |
| } } |
| if (ret == Z_STREAM_END) break; |
| if (ret != Z_BUF_ERROR) |
| EXM_THROW(77, "zstd: %s: deflate error %d \n", srcFileName, ret); |
| } |
| |
| ret = deflateEnd(&strm); |
| if (ret != Z_OK) |
| EXM_THROW(79, "zstd: %s: deflateEnd error %d \n", srcFileName, ret); |
| *readsize = inFileSize; |
| |
| return outFileSize; |
| } |
| #endif |
| |
| |
| #ifdef ZSTD_LZMACOMPRESS |
| static unsigned long long FIO_compressLzmaFrame(cRess_t* ress, |
| const char* srcFileName, U64 const srcFileSize, |
| int compressionLevel, U64* readsize, int plain_lzma) |
| { |
| unsigned long long inFileSize = 0, outFileSize = 0; |
| lzma_stream strm = LZMA_STREAM_INIT; |
| lzma_action action = LZMA_RUN; |
| lzma_ret ret; |
| |
| if (compressionLevel < 0) compressionLevel = 0; |
| if (compressionLevel > 9) compressionLevel = 9; |
| |
| if (plain_lzma) { |
| lzma_options_lzma opt_lzma; |
| if (lzma_lzma_preset(&opt_lzma, compressionLevel)) |
| EXM_THROW(71, "zstd: %s: lzma_lzma_preset error", srcFileName); |
| ret = lzma_alone_encoder(&strm, &opt_lzma); /* LZMA */ |
| if (ret != LZMA_OK) |
| EXM_THROW(71, "zstd: %s: lzma_alone_encoder error %d", srcFileName, ret); |
| } else { |
| ret = lzma_easy_encoder(&strm, compressionLevel, LZMA_CHECK_CRC64); /* XZ */ |
| if (ret != LZMA_OK) |
| EXM_THROW(71, "zstd: %s: lzma_easy_encoder error %d", srcFileName, ret); |
| } |
| |
| strm.next_in = 0; |
| strm.avail_in = 0; |
| strm.next_out = ress->dstBuffer; |
| strm.avail_out = ress->dstBufferSize; |
| |
| while (1) { |
| if (strm.avail_in == 0) { |
| size_t const inSize = fread(ress->srcBuffer, 1, ress->srcBufferSize, ress->srcFile); |
| if (inSize == 0) action = LZMA_FINISH; |
| inFileSize += inSize; |
| strm.next_in = ress->srcBuffer; |
| strm.avail_in = inSize; |
| } |
| |
| ret = lzma_code(&strm, action); |
| |
| if (ret != LZMA_OK && ret != LZMA_STREAM_END) |
| EXM_THROW(72, "zstd: %s: lzma_code encoding error %d", srcFileName, ret); |
| { size_t const compBytes = ress->dstBufferSize - strm.avail_out; |
| if (compBytes) { |
| if (fwrite(ress->dstBuffer, 1, compBytes, ress->dstFile) != compBytes) |
| EXM_THROW(73, "Write error : cannot write to output file"); |
| outFileSize += compBytes; |
| strm.next_out = ress->dstBuffer; |
| strm.avail_out = ress->dstBufferSize; |
| } } |
| if (!srcFileSize) |
| DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%%", |
| (U32)(inFileSize>>20), |
| (double)outFileSize/inFileSize*100) |
| else |
| DISPLAYUPDATE(2, "\rRead : %u / %u MB ==> %.2f%%", |
| (U32)(inFileSize>>20), (U32)(srcFileSize>>20), |
| (double)outFileSize/inFileSize*100); |
| if (ret == LZMA_STREAM_END) break; |
| } |
| |
| lzma_end(&strm); |
| *readsize = inFileSize; |
| |
| return outFileSize; |
| } |
| #endif |
| |
| #ifdef ZSTD_LZ4COMPRESS |
| static int FIO_LZ4_GetBlockSize_FromBlockId (int id) { return (1 << (8 + (2 * id))); } |
| static unsigned long long FIO_compressLz4Frame(cRess_t* ress, |
| const char* srcFileName, U64 const srcFileSize, |
| int compressionLevel, U64* readsize) |
| { |
| unsigned long long inFileSize = 0, outFileSize = 0; |
| |
| LZ4F_preferences_t prefs; |
| LZ4F_compressionContext_t ctx; |
| |
| LZ4F_errorCode_t const errorCode = LZ4F_createCompressionContext(&ctx, LZ4F_VERSION); |
| if (LZ4F_isError(errorCode)) |
| EXM_THROW(31, "zstd: failed to create lz4 compression context"); |
| |
| memset(&prefs, 0, sizeof(prefs)); |
| |
| #if LZ4_VERSION_NUMBER <= 10600 |
| #define LZ4F_blockIndependent blockIndependent |
| #define LZ4F_max4MB max4MB |
| #endif |
| |
| prefs.autoFlush = 1; |
| prefs.compressionLevel = compressionLevel; |
| prefs.frameInfo.blockMode = LZ4F_blockIndependent; /* stick to defaults for lz4 cli */ |
| prefs.frameInfo.blockSizeID = LZ4F_max4MB; |
| prefs.frameInfo.contentChecksumFlag = (contentChecksum_t)g_checksumFlag; |
| #if LZ4_VERSION_NUMBER >= 10600 |
| prefs.frameInfo.contentSize = srcFileSize; |
| #endif |
| |
| { |
| size_t blockSize = FIO_LZ4_GetBlockSize_FromBlockId(LZ4F_max4MB); |
| size_t readSize; |
| size_t headerSize = LZ4F_compressBegin(ctx, ress->dstBuffer, ress->dstBufferSize, &prefs); |
| if (LZ4F_isError(headerSize)) |
| EXM_THROW(33, "File header generation failed : %s", |
| LZ4F_getErrorName(headerSize)); |
| { size_t const sizeCheck = fwrite(ress->dstBuffer, 1, headerSize, ress->dstFile); |
| if (sizeCheck!=headerSize) EXM_THROW(34, "Write error : cannot write header"); } |
| outFileSize += headerSize; |
| |
| /* Read first block */ |
| readSize = fread(ress->srcBuffer, (size_t)1, (size_t)blockSize, ress->srcFile); |
| inFileSize += readSize; |
| |
| /* Main Loop */ |
| while (readSize>0) { |
| size_t outSize; |
| |
| /* Compress Block */ |
| outSize = LZ4F_compressUpdate(ctx, ress->dstBuffer, ress->dstBufferSize, ress->srcBuffer, readSize, NULL); |
| if (LZ4F_isError(outSize)) |
| EXM_THROW(35, "zstd: %s: lz4 compression failed : %s", |
| srcFileName, LZ4F_getErrorName(outSize)); |
| outFileSize += outSize; |
| if (!srcFileSize) |
| DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%%", |
| (U32)(inFileSize>>20), |
| (double)outFileSize/inFileSize*100) |
| else |
| DISPLAYUPDATE(2, "\rRead : %u / %u MB ==> %.2f%%", |
| (U32)(inFileSize>>20), (U32)(srcFileSize>>20), |
| (double)outFileSize/inFileSize*100); |
| |
| /* Write Block */ |
| { size_t const sizeCheck = fwrite(ress->dstBuffer, 1, outSize, ress->dstFile); |
| if (sizeCheck!=outSize) EXM_THROW(36, "Write error : cannot write compressed block"); } |
| |
| /* Read next block */ |
| readSize = fread(ress->srcBuffer, (size_t)1, (size_t)blockSize, ress->srcFile); |
| inFileSize += readSize; |
| } |
| if (ferror(ress->srcFile)) EXM_THROW(37, "Error reading %s ", srcFileName); |
| |
| /* End of Stream mark */ |
| headerSize = LZ4F_compressEnd(ctx, ress->dstBuffer, ress->dstBufferSize, NULL); |
| if (LZ4F_isError(headerSize)) |
| EXM_THROW(38, "zstd: %s: lz4 end of file generation failed : %s", |
| srcFileName, LZ4F_getErrorName(headerSize)); |
| |
| { size_t const sizeCheck = fwrite(ress->dstBuffer, 1, headerSize, ress->dstFile); |
| if (sizeCheck!=headerSize) EXM_THROW(39, "Write error : cannot write end of stream"); } |
| outFileSize += headerSize; |
| } |
| |
| *readsize = inFileSize; |
| LZ4F_freeCompressionContext(ctx); |
| |
| return outFileSize; |
| } |
| #endif |
| |
| |
| /*! FIO_compressFilename_internal() : |
| * same as FIO_compressFilename_extRess(), with `ress.desFile` already opened. |
| * @return : 0 : compression completed correctly, |
| * 1 : missing or pb opening srcFileName |
| */ |
| static int FIO_compressFilename_internal(cRess_t ress, |
| const char* dstFileName, const char* srcFileName, int compressionLevel) |
| { |
| FILE* const srcFile = ress.srcFile; |
| FILE* const dstFile = ress.dstFile; |
| U64 readsize = 0; |
| U64 compressedfilesize = 0; |
| U64 const fileSize = UTIL_getFileSize(srcFileName); |
| |
| switch (g_compressionType) { |
| case FIO_zstdCompression: |
| break; |
| |
| case FIO_gzipCompression: |
| #ifdef ZSTD_GZCOMPRESS |
| compressedfilesize = FIO_compressGzFrame(&ress, srcFileName, fileSize, compressionLevel, &readsize); |
| #else |
| (void)compressionLevel; |
| EXM_THROW(20, "zstd: %s: file cannot be compressed as gzip (zstd compiled without ZSTD_GZCOMPRESS) -- ignored \n", |
| srcFileName); |
| #endif |
| goto finish; |
| |
| case FIO_xzCompression: |
| case FIO_lzmaCompression: |
| #ifdef ZSTD_LZMACOMPRESS |
| compressedfilesize = FIO_compressLzmaFrame(&ress, srcFileName, fileSize, compressionLevel, &readsize, g_compressionType==FIO_lzmaCompression); |
| #else |
| (void)compressionLevel; |
| EXM_THROW(20, "zstd: %s: file cannot be compressed as xz/lzma (zstd compiled without ZSTD_LZMACOMPRESS) -- ignored \n", |
| srcFileName); |
| #endif |
| goto finish; |
| |
| case FIO_lz4Compression: |
| #ifdef ZSTD_LZ4COMPRESS |
| compressedfilesize = FIO_compressLz4Frame(&ress, srcFileName, fileSize, compressionLevel, &readsize); |
| #else |
| (void)compressionLevel; |
| EXM_THROW(20, "zstd: %s: file cannot be compressed as lz4 (zstd compiled without ZSTD_LZ4COMPRESS) -- ignored \n", |
| srcFileName); |
| #endif |
| goto finish; |
| } |
| |
| /* init */ |
| #ifdef ZSTD_MULTITHREAD |
| { size_t const resetError = ZSTDMT_resetCStream(ress.cctx, fileSize); |
| #else |
| { size_t const resetError = ZSTD_resetCStream(ress.cctx, fileSize); |
| #endif |
| if (ZSTD_isError(resetError)) |
| EXM_THROW(21, "Error initializing compression : %s", |
| ZSTD_getErrorName(resetError)); |
| } |
| |
| /* Main compression loop */ |
| while (1) { |
| /* Fill input Buffer */ |
| size_t const inSize = fread(ress.srcBuffer, (size_t)1, ress.srcBufferSize, srcFile); |
| if (inSize==0) break; |
| readsize += inSize; |
| |
| { ZSTD_inBuffer inBuff = { ress.srcBuffer, inSize, 0 }; |
| while (inBuff.pos != inBuff.size) { |
| ZSTD_outBuffer outBuff = { ress.dstBuffer, ress.dstBufferSize, 0 }; |
| #ifdef ZSTD_MULTITHREAD |
| size_t const result = ZSTDMT_compressStream(ress.cctx, &outBuff, &inBuff); |
| #else |
| size_t const result = ZSTD_compressStream(ress.cctx, &outBuff, &inBuff); |
| #endif |
| if (ZSTD_isError(result)) |
| EXM_THROW(23, "Compression error : %s ", ZSTD_getErrorName(result)); |
| |
| /* Write compressed stream */ |
| if (outBuff.pos) { |
| size_t const sizeCheck = fwrite(ress.dstBuffer, 1, outBuff.pos, dstFile); |
| if (sizeCheck!=outBuff.pos) |
| EXM_THROW(25, "Write error : cannot write compressed block into %s", dstFileName); |
| compressedfilesize += outBuff.pos; |
| } } } |
| if (g_nbThreads > 1) { |
| if (!fileSize) |
| DISPLAYUPDATE(2, "\rRead : %u MB", (U32)(readsize>>20)) |
| else |
| DISPLAYUPDATE(2, "\rRead : %u / %u MB", |
| (U32)(readsize>>20), (U32)(fileSize>>20)); |
| } else { |
| if (!fileSize) |
| DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%%", |
| (U32)(readsize>>20), |
| (double)compressedfilesize/readsize*100) |
| else |
| DISPLAYUPDATE(2, "\rRead : %u / %u MB ==> %.2f%%", |
| (U32)(readsize>>20), (U32)(fileSize>>20), |
| (double)compressedfilesize/readsize*100); |
| } |
| } |
| |
| /* End of Frame */ |
| { size_t result = 1; |
| while (result!=0) { /* note : is there any possibility of endless loop ? */ |
| ZSTD_outBuffer outBuff = { ress.dstBuffer, ress.dstBufferSize, 0 }; |
| #ifdef ZSTD_MULTITHREAD |
| result = ZSTDMT_endStream(ress.cctx, &outBuff); |
| #else |
| result = ZSTD_endStream(ress.cctx, &outBuff); |
| #endif |
| if (ZSTD_isError(result)) EXM_THROW(26, "Compression error during frame end : %s", ZSTD_getErrorName(result)); |
| { size_t const sizeCheck = fwrite(ress.dstBuffer, 1, outBuff.pos, dstFile); |
| if (sizeCheck!=outBuff.pos) EXM_THROW(27, "Write error : cannot write frame end into %s", dstFileName); } |
| compressedfilesize += outBuff.pos; |
| } |
| } |
| |
| finish: |
| /* Status */ |
| DISPLAYLEVEL(2, "\r%79s\r", ""); |
| DISPLAYLEVEL(2,"%-20s :%6.2f%% (%6llu => %6llu bytes, %s) \n", srcFileName, |
| (double)compressedfilesize/(readsize+(!readsize) /* avoid div by zero */ )*100, |
| (unsigned long long)readsize, (unsigned long long) compressedfilesize, |
| dstFileName); |
| |
| return 0; |
| } |
| |
| |
| /*! FIO_compressFilename_srcFile() : |
| * note : ress.destFile already opened |
| * @return : 0 : compression completed correctly, |
| * 1 : missing or pb opening srcFileName |
| */ |
| static int FIO_compressFilename_srcFile(cRess_t ress, |
| const char* dstFileName, const char* srcFileName, |
| int compressionLevel) |
| { |
| int result; |
| |
| /* File check */ |
| if (UTIL_isDirectory(srcFileName)) { |
| DISPLAYLEVEL(1, "zstd: %s is a directory -- ignored \n", srcFileName); |
| return 1; |
| } |
| |
| ress.srcFile = FIO_openSrcFile(srcFileName); |
| if (!ress.srcFile) return 1; /* srcFile could not be opened */ |
| |
| result = FIO_compressFilename_internal(ress, dstFileName, srcFileName, compressionLevel); |
| |
| fclose(ress.srcFile); |
| if (g_removeSrcFile /* --rm */ && !result && strcmp(srcFileName, stdinmark)) { |
| if (remove(srcFileName)) |
| EXM_THROW(1, "zstd: %s: %s", srcFileName, strerror(errno)); |
| } |
| return result; |
| } |
| |
| |
| /*! FIO_compressFilename_dstFile() : |
| * @return : 0 : compression completed correctly, |
| * 1 : pb |
| */ |
| static int FIO_compressFilename_dstFile(cRess_t ress, |
| const char* dstFileName, |
| const char* srcFileName, |
| int compressionLevel) |
| { |
| int result; |
| stat_t statbuf; |
| int stat_result = 0; |
| |
| ress.dstFile = FIO_openDstFile(dstFileName); |
| if (ress.dstFile==NULL) return 1; /* could not open dstFileName */ |
| |
| if (strcmp (srcFileName, stdinmark) && UTIL_getFileStat(srcFileName, &statbuf)) |
| stat_result = 1; |
| result = FIO_compressFilename_srcFile(ress, dstFileName, srcFileName, compressionLevel); |
| |
| if (fclose(ress.dstFile)) { /* error closing dstFile */ |
| DISPLAYLEVEL(1, "zstd: %s: %s \n", dstFileName, strerror(errno)); |
| result=1; |
| } |
| if (result!=0) { /* remove operation artefact */ |
| if (remove(dstFileName)) |
| EXM_THROW(1, "zstd: %s: %s", dstFileName, strerror(errno)); |
| } |
| else if (strcmp (dstFileName, stdoutmark) && stat_result) |
| UTIL_setFileStat(dstFileName, &statbuf); |
| return result; |
| } |
| |
| |
| int FIO_compressFilename(const char* dstFileName, const char* srcFileName, |
| const char* dictFileName, int compressionLevel, ZSTD_compressionParameters* comprParams) |
| { |
| clock_t const start = clock(); |
| U64 const srcSize = UTIL_getFileSize(srcFileName); |
| int const regFile = UTIL_isRegFile(srcFileName); |
| |
| cRess_t const ress = FIO_createCResources(dictFileName, compressionLevel, srcSize, regFile, comprParams); |
| int const result = FIO_compressFilename_dstFile(ress, dstFileName, srcFileName, compressionLevel); |
| |
| double const seconds = (double)(clock() - start) / CLOCKS_PER_SEC; |
| DISPLAYLEVEL(4, "Completed in %.2f sec \n", seconds); |
| |
| FIO_freeCResources(ress); |
| return result; |
| } |
| |
| typedef struct { |
| int numActualFrames; |
| int numSkippableFrames; |
| U64 decompressedSize; |
| int canComputeDecompSize; |
| U64 compressedSize; |
| int usesCheck; |
| } fileInfo_t; |
| |
| |
| int calcFrameHeaderSize(BYTE frameHeaderDescriptor){ |
| int frameContentSizeBytes = 0; |
| int windowDescriptorBytes; |
| int dictionaryIDBytes; |
| int frameContentSizeFlag = frameHeaderDescriptor >> 6; |
| int singleSegmentFlag = (frameHeaderDescriptor & (1 << 5)) >> 5; |
| int dictionaryIDFlag = frameHeaderDescriptor & 3; |
| if(frameContentSizeFlag!=0){ |
| frameContentSizeBytes = 1 << frameContentSizeFlag; |
| } |
| else if(singleSegmentFlag){ |
| frameContentSizeBytes = 1; |
| } |
| windowDescriptorBytes = singleSegmentFlag ? 0 : 1; |
| dictionaryIDBytes = dictionaryIDFlag ? 1 << (dictionaryIDFlag - 1): 0; |
| return 4 + 1 + windowDescriptorBytes + frameContentSizeBytes + dictionaryIDBytes; |
| } |
| |
| /* |
| * Reads information from file, stores in *info |
| * if successful, returns 0, otherwise returns 1 |
| */ |
| int getFileInfo(fileInfo_t* info, const char* inFileName){ |
| FILE* srcFile = FIO_openSrcFile(inFileName); |
| if(srcFile==NULL){ |
| return 1; |
| } |
| info->compressedSize = UTIL_getFileSize(inFileName); |
| info->decompressedSize = 0; |
| info->numActualFrames = 0; |
| info-> numSkippableFrames = 0; |
| info->canComputeDecompSize = 1; |
| /* begin analyzing frame */ |
| while(1){ |
| BYTE magicNumberBuffer[4]; |
| size_t numBytesRead = fread(magicNumberBuffer, 1, 4, srcFile); |
| U32 magicNumber; |
| if(numBytesRead != 4) break; |
| magicNumber = MEM_readLE32(magicNumberBuffer); |
| if(magicNumber==ZSTD_MAGICNUMBER){ |
| BYTE frameHeaderDescriptor; |
| int totalFrameHeaderBytes; |
| BYTE* frameHeader; |
| int lastBlock = 0; |
| size_t readBytes = fread(&frameHeaderDescriptor, 1, 1, srcFile); |
| info->numActualFrames++; |
| if(readBytes != 1){ |
| DISPLAY("There was an error with reading frame header descriptor\n"); |
| exit(1); |
| } |
| /* calculate actual frame header size */ |
| totalFrameHeaderBytes = calcFrameHeaderSize(frameHeaderDescriptor); |
| |
| /* reset to beginning of from and read entire header */ |
| fseek(srcFile, -5, SEEK_CUR); |
| frameHeader = (BYTE*)malloc(totalFrameHeaderBytes); |
| readBytes = fread(frameHeader, 1, totalFrameHeaderBytes, srcFile); |
| if(readBytes != (size_t)totalFrameHeaderBytes){ |
| DISPLAY("There was an error reading the frame header\n"); |
| exit(1); |
| } |
| |
| /* get decompressed file size */ |
| { |
| U64 additional = ZSTD_getFrameContentSize(frameHeader, totalFrameHeaderBytes); |
| if(additional!=ZSTD_CONTENTSIZE_UNKNOWN && additional!=ZSTD_CONTENTSIZE_ERROR){ |
| info->decompressedSize += additional; |
| } |
| else{ |
| info->canComputeDecompSize = 0; |
| } |
| } |
| |
| /* skip the rest of the blocks in the frame */ |
| do{ |
| BYTE blockHeaderBuffer[3]; |
| U32 blockHeader; |
| int blockSize; |
| readBytes = fread(blockHeaderBuffer, 1, 3, srcFile); |
| if(readBytes != 3){ |
| DISPLAY("There was a problem reading the block header\n"); |
| exit(1); |
| } |
| blockHeader = MEM_readLE24(blockHeaderBuffer); |
| lastBlock = blockHeader & 1; |
| blockSize = (blockHeader - (blockHeader & 7)) >> 3; |
| fseek(srcFile, blockSize, SEEK_CUR); |
| }while(lastBlock != 1); |
| { |
| /* check if checksum is used */ |
| int contentChecksumFlag = (frameHeaderDescriptor & (1 << 2)) >> 2; |
| if(contentChecksumFlag){ |
| info->usesCheck = 1; |
| } |
| if(contentChecksumFlag){ |
| fseek(srcFile, 4, SEEK_CUR); |
| } |
| } |
| } |
| else if(magicNumber==ZSTD_MAGIC_SKIPPABLE_START){ |
| BYTE frameSizeBuffer[4]; |
| long frameSize; |
| size_t readBytes = fread(frameSizeBuffer, 1, 4, srcFile); |
| info->numSkippableFrames++; |
| if(readBytes != 4){ |
| DISPLAY("There was an error reading skippable frame size"); |
| exit(1); |
| } |
| frameSize = MEM_readLE32(frameSizeBuffer); |
| fseek(srcFile, frameSize, SEEK_CUR); |
| } |
| |
| } |
| return 0; |
| } |
| void displayInfo(const char* inFileName, fileInfo_t* info, int displayLevel){ |
| double compressedSizeMB = (double)info->compressedSize/(1 MB); |
| double decompressedSizeMB = (double)info->decompressedSize/(1 MB); |
| |
| if(displayLevel<=2){ |
| if(info->usesCheck && info->canComputeDecompSize){ |
| DISPLAY("Skippable Non-Skippable Compressed Uncompressed Ratio Check Filename\n"); |
| DISPLAY("%9d %13d %7.2f MB %7.2f MB %5.3f XXH64 %s\n", |
| info->numSkippableFrames, info->numActualFrames, compressedSizeMB, decompressedSizeMB, |
| compressedSizeMB/decompressedSizeMB, inFileName); |
| } |
| else if(!info->usesCheck){ |
| DISPLAY("Skippable Non-Skippable Compressed Uncompressed Ratio Check Filename\n"); |
| DISPLAY("%9d %13d %7.2f MB %7.2f MB %5.3f %s\n", |
| info->numSkippableFrames, info->numActualFrames, compressedSizeMB, decompressedSizeMB, |
| compressedSizeMB/decompressedSizeMB, inFileName); |
| } |
| else if(!info->canComputeDecompSize){ |
| DISPLAY("Skippable Non-Skippable Compressed Uncompressed Ratio Check Filename\n"); |
| DISPLAY("%9d %13d %7.2f MB XXH64 %s\n", |
| info->numSkippableFrames, info->numActualFrames, compressedSizeMB, inFileName); |
| } |
| else{ |
| DISPLAY("Skippable Non-Skippable Filename\n"); |
| DISPLAY("%9d %13d %7.2f MB %s\n", |
| info->numSkippableFrames, info->numActualFrames, compressedSizeMB, inFileName); |
| } |
| } |
| else{ |
| DISPLAY("# Zstandard Frames: %d\n", info->numActualFrames); |
| DISPLAY("# Skippable Frames: %d\n", info->numSkippableFrames); |
| DISPLAY("Compressed Size: %.2f MB (%llu B)\n", compressedSizeMB, info->compressedSize); |
| if(info->canComputeDecompSize){ |
| DISPLAY("Decompressed Size: %.2f MB (%llu B)\n", decompressedSizeMB, info->decompressedSize); |
| DISPLAY("Ratio: %.4f\n", compressedSizeMB/decompressedSizeMB); |
| } |
| if(info->usesCheck){ |
| DISPLAY("Check: XXH64\n"); |
| } |
| } |
| |
| } |
| |
| int FIO_listFile(const char* inFileName, int displayLevel){ |
| const char* const suffixPtr = strrchr(inFileName, '.'); |
| DISPLAY("File: %s\n", inFileName); |
| if(!suffixPtr || strcmp(suffixPtr, ZSTD_EXTENSION)){ |
| DISPLAYLEVEL(1, "file %s was not compressed with zstd -- ignoring\n\n", inFileName); |
| return 1; |
| } |
| else{ |
| fileInfo_t* info = (fileInfo_t*)malloc(sizeof(fileInfo_t)); |
| int error = getFileInfo(info, inFileName); |
| if(error==1){ |
| DISPLAY("An error occurred with getting file info\n"); |
| exit(1); |
| } |
| displayInfo(inFileName, info, displayLevel); |
| } |
| DISPLAY("\n"); |
| return 0; |
| } |
| |
| int FIO_compressMultipleFilenames(const char** inFileNamesTable, unsigned nbFiles, |
| const char* suffix, |
| const char* dictFileName, int compressionLevel, |
| ZSTD_compressionParameters* comprParams) |
| { |
| int missed_files = 0; |
| size_t dfnSize = FNSPACE; |
| char* dstFileName = (char*)malloc(FNSPACE); |
| size_t const suffixSize = suffix ? strlen(suffix) : 0; |
| U64 const srcSize = (nbFiles != 1) ? 0 : UTIL_getFileSize(inFileNamesTable[0]) ; |
| int const regFile = (nbFiles != 1) ? 0 : UTIL_isRegFile(inFileNamesTable[0]); |
| cRess_t ress = FIO_createCResources(dictFileName, compressionLevel, srcSize, regFile, comprParams); |
| |
| /* init */ |
| if (dstFileName==NULL) |
| EXM_THROW(27, "FIO_compressMultipleFilenames : allocation error for dstFileName"); |
| if (suffix == NULL) |
| EXM_THROW(28, "FIO_compressMultipleFilenames : dst unknown"); /* should never happen */ |
| |
| /* loop on each file */ |
| if (!strcmp(suffix, stdoutmark)) { |
| unsigned u; |
| ress.dstFile = stdout; |
| SET_BINARY_MODE(stdout); |
| for (u=0; u<nbFiles; u++) |
| missed_files += FIO_compressFilename_srcFile(ress, stdoutmark, inFileNamesTable[u], compressionLevel); |
| if (fclose(ress.dstFile)) |
| EXM_THROW(29, "Write error : cannot properly close stdout"); |
| } else { |
| unsigned u; |
| for (u=0; u<nbFiles; u++) { |
| size_t const ifnSize = strlen(inFileNamesTable[u]); |
| if (dfnSize <= ifnSize+suffixSize+1) { /* resize name buffer */ |
| free(dstFileName); |
| dfnSize = ifnSize + 20; |
| dstFileName = (char*)malloc(dfnSize); |
| if (!dstFileName) |
| EXM_THROW(30, "zstd: %s", strerror(errno)); |
| } |
| strcpy(dstFileName, inFileNamesTable[u]); |
| strcat(dstFileName, suffix); |
| missed_files += FIO_compressFilename_dstFile(ress, dstFileName, inFileNamesTable[u], compressionLevel); |
| } } |
| |
| /* Close & Free */ |
| FIO_freeCResources(ress); |
| free(dstFileName); |
| |
| return missed_files; |
| } |
| |
| #endif /* #ifndef ZSTD_NOCOMPRESS */ |
| |
| |
| |
| #ifndef ZSTD_NODECOMPRESS |
| |
| /* ************************************************************************** |
| * Decompression |
| ****************************************************************************/ |
| typedef struct { |
| void* srcBuffer; |
| size_t srcBufferLoaded; |
| size_t srcBufferSize; |
| void* dstBuffer; |
| size_t dstBufferSize; |
| ZSTD_DStream* dctx; |
| FILE* dstFile; |
| } dRess_t; |
| |
| static dRess_t FIO_createDResources(const char* dictFileName) |
| { |
| dRess_t ress; |
| memset(&ress, 0, sizeof(ress)); |
| |
| /* Allocation */ |
| ress.dctx = ZSTD_createDStream(); |
| if (ress.dctx==NULL) EXM_THROW(60, "Can't create ZSTD_DStream"); |
| ZSTD_setDStreamParameter(ress.dctx, DStream_p_maxWindowSize, g_memLimit); |
| ress.srcBufferSize = ZSTD_DStreamInSize(); |
| ress.srcBuffer = malloc(ress.srcBufferSize); |
| ress.dstBufferSize = ZSTD_DStreamOutSize(); |
| ress.dstBuffer = malloc(ress.dstBufferSize); |
| if (!ress.srcBuffer || !ress.dstBuffer) |
| EXM_THROW(61, "Allocation error : not enough memory"); |
| |
| /* dictionary */ |
| { void* dictBuffer; |
| size_t const dictBufferSize = FIO_createDictBuffer(&dictBuffer, dictFileName); |
| size_t const initError = ZSTD_initDStream_usingDict(ress.dctx, dictBuffer, dictBufferSize); |
| if (ZSTD_isError(initError)) |
| EXM_THROW(61, "ZSTD_initDStream_usingDict error : %s", ZSTD_getErrorName(initError)); |
| free(dictBuffer); |
| } |
| |
| return ress; |
| } |
| |
| static void FIO_freeDResources(dRess_t ress) |
| { |
| size_t const errorCode = ZSTD_freeDStream(ress.dctx); |
| if (ZSTD_isError(errorCode)) |
| EXM_THROW(69, "Error : can't free ZSTD_DStream context resource : %s", |
| ZSTD_getErrorName(errorCode)); |
| free(ress.srcBuffer); |
| free(ress.dstBuffer); |
| } |
| |
| |
| /** FIO_fwriteSparse() : |
| * @return : storedSkips, to be provided to next call to FIO_fwriteSparse() of LZ4IO_fwriteSparseEnd() */ |
| static unsigned FIO_fwriteSparse(FILE* file, const void* buffer, size_t bufferSize, unsigned storedSkips) |
| { |
| const size_t* const bufferT = (const size_t*)buffer; /* Buffer is supposed malloc'ed, hence aligned on size_t */ |
| size_t bufferSizeT = bufferSize / sizeof(size_t); |
| const size_t* const bufferTEnd = bufferT + bufferSizeT; |
| const size_t* ptrT = bufferT; |
| static const size_t segmentSizeT = (32 KB) / sizeof(size_t); /* 0-test re-attempted every 32 KB */ |
| |
| if (!g_sparseFileSupport) { /* normal write */ |
| size_t const sizeCheck = fwrite(buffer, 1, bufferSize, file); |
| if (sizeCheck != bufferSize) EXM_THROW(70, "Write error : cannot write decoded block"); |
| return 0; |
| } |
| |
| /* avoid int overflow */ |
| if (storedSkips > 1 GB) { |
| int const seekResult = LONG_SEEK(file, 1 GB, SEEK_CUR); |
| if (seekResult != 0) EXM_THROW(71, "1 GB skip error (sparse file support)"); |
| storedSkips -= 1 GB; |
| } |
| |
| while (ptrT < bufferTEnd) { |
| size_t seg0SizeT = segmentSizeT; |
| size_t nb0T; |
| |
| /* count leading zeros */ |
| if (seg0SizeT > bufferSizeT) seg0SizeT = bufferSizeT; |
| bufferSizeT -= seg0SizeT; |
| for (nb0T=0; (nb0T < seg0SizeT) && (ptrT[nb0T] == 0); nb0T++) ; |
| storedSkips += (unsigned)(nb0T * sizeof(size_t)); |
| |
| if (nb0T != seg0SizeT) { /* not all 0s */ |
| int const seekResult = LONG_SEEK(file, storedSkips, SEEK_CUR); |
| if (seekResult) EXM_THROW(72, "Sparse skip error ; try --no-sparse"); |
| storedSkips = 0; |
| seg0SizeT -= nb0T; |
| ptrT += nb0T; |
| { size_t const sizeCheck = fwrite(ptrT, sizeof(size_t), seg0SizeT, file); |
| if (sizeCheck != seg0SizeT) |
| EXM_THROW(73, "Write error : cannot write decoded block"); |
| } } |
| ptrT += seg0SizeT; |
| } |
| |
| { static size_t const maskT = sizeof(size_t)-1; |
| if (bufferSize & maskT) { |
| /* size not multiple of sizeof(size_t) : implies end of block */ |
| const char* const restStart = (const char*)bufferTEnd; |
| const char* restPtr = restStart; |
| size_t restSize = bufferSize & maskT; |
| const char* const restEnd = restStart + restSize; |
| for ( ; (restPtr < restEnd) && (*restPtr == 0); restPtr++) ; |
| storedSkips += (unsigned) (restPtr - restStart); |
| if (restPtr != restEnd) { |
| int seekResult = LONG_SEEK(file, storedSkips, SEEK_CUR); |
| if (seekResult) |
| EXM_THROW(74, "Sparse skip error ; try --no-sparse"); |
| storedSkips = 0; |
| { size_t const sizeCheck = fwrite(restPtr, 1, restEnd - restPtr, file); |
| if (sizeCheck != (size_t)(restEnd - restPtr)) |
| EXM_THROW(75, "Write error : cannot write decoded end of block"); |
| } } } } |
| |
| return storedSkips; |
| } |
| |
| static void FIO_fwriteSparseEnd(FILE* file, unsigned storedSkips) |
| { |
| if (storedSkips-->0) { /* implies g_sparseFileSupport>0 */ |
| int const seekResult = LONG_SEEK(file, storedSkips, SEEK_CUR); |
| if (seekResult != 0) EXM_THROW(69, "Final skip error (sparse file)"); |
| { const char lastZeroByte[1] = { 0 }; |
| size_t const sizeCheck = fwrite(lastZeroByte, 1, 1, file); |
| if (sizeCheck != 1) |
| EXM_THROW(69, "Write error : cannot write last zero"); |
| } } |
| } |
| |
| |
| /** FIO_passThrough() : just copy input into output, for compatibility with gzip -df mode |
| @return : 0 (no error) */ |
| static unsigned FIO_passThrough(FILE* foutput, FILE* finput, void* buffer, size_t bufferSize, size_t alreadyLoaded) |
| { |
| size_t const blockSize = MIN(64 KB, bufferSize); |
| size_t readFromInput = 1; |
| unsigned storedSkips = 0; |
| |
| /* assumption : ress->srcBufferLoaded bytes already loaded and stored within buffer */ |
| { size_t const sizeCheck = fwrite(buffer, 1, alreadyLoaded, foutput); |
| if (sizeCheck != alreadyLoaded) EXM_THROW(50, "Pass-through write error"); } |
| |
| while (readFromInput) { |
| readFromInput = fread(buffer, 1, blockSize, finput); |
| storedSkips = FIO_fwriteSparse(foutput, buffer, readFromInput, storedSkips); |
| } |
| |
| FIO_fwriteSparseEnd(foutput, storedSkips); |
| return 0; |
| } |
| |
| |
| /** FIO_decompressFrame() : |
| @return : size of decoded frame, or an error code |
| */ |
| #define FIO_ERROR_ZSTD_DECODING ((unsigned long long)(-2)) |
| unsigned long long FIO_decompressFrame(dRess_t* ress, |
| FILE* finput, |
| const char* srcFileName, |
| U64 alreadyDecoded) |
| { |
| U64 frameSize = 0; |
| U32 storedSkips = 0; |
| |
| ZSTD_resetDStream(ress->dctx); |
| if (strlen(srcFileName)>20) srcFileName += strlen(srcFileName)-20; /* display last 20 characters */ |
| |
| /* Header loading (optional, saves one loop) */ |
| { size_t const toRead = 9; |
| if (ress->srcBufferLoaded < toRead) |
| ress->srcBufferLoaded += fread(((char*)ress->srcBuffer) + ress->srcBufferLoaded, 1, toRead - ress->srcBufferLoaded, finput); |
| } |
| |
| /* Main decompression Loop */ |
| while (1) { |
| ZSTD_inBuffer inBuff = { ress->srcBuffer, ress->srcBufferLoaded, 0 }; |
| ZSTD_outBuffer outBuff= { ress->dstBuffer, ress->dstBufferSize, 0 }; |
| size_t const readSizeHint = ZSTD_decompressStream(ress->dctx, &outBuff, &inBuff); |
| if (ZSTD_isError(readSizeHint)) { |
| DISPLAYLEVEL(1, "%s : Decoding error (36) : %s \n", |
| srcFileName, ZSTD_getErrorName(readSizeHint)); |
| return FIO_ERROR_ZSTD_DECODING; |
| } |
| |
| /* Write block */ |
| storedSkips = FIO_fwriteSparse(ress->dstFile, ress->dstBuffer, outBuff.pos, storedSkips); |
| frameSize += outBuff.pos; |
| DISPLAYUPDATE(2, "\r%-20.20s : %u MB... ", |
| srcFileName, (U32)((alreadyDecoded+frameSize)>>20) ); |
| |
| if (inBuff.pos > 0) { |
| memmove(ress->srcBuffer, (char*)ress->srcBuffer + inBuff.pos, inBuff.size - inBuff.pos); |
| ress->srcBufferLoaded -= inBuff.pos; |
| } |
| |
| if (readSizeHint == 0) break; /* end of frame */ |
| if (inBuff.size != inBuff.pos) { |
| DISPLAYLEVEL(1, "%s : Decoding error (37) : should consume entire input \n", |
| srcFileName); |
| return FIO_ERROR_ZSTD_DECODING; |
| } |
| |
| /* Fill input buffer */ |
| { size_t const toRead = MIN(readSizeHint, ress->srcBufferSize); /* support large skippable frames */ |
| if (ress->srcBufferLoaded < toRead) |
| ress->srcBufferLoaded += fread((char*)ress->srcBuffer + ress->srcBufferLoaded, |
| 1, toRead - ress->srcBufferLoaded, finput); |
| if (ress->srcBufferLoaded < toRead) { |
| DISPLAYLEVEL(1, "%s : Read error (39) : premature end \n", |
| srcFileName); |
| return FIO_ERROR_ZSTD_DECODING; |
| } } } |
| |
| FIO_fwriteSparseEnd(ress->dstFile, storedSkips); |
| |
| return frameSize; |
| } |
| |
| |
| #ifdef ZSTD_GZDECOMPRESS |
| static unsigned long long FIO_decompressGzFrame(dRess_t* ress, |
| FILE* srcFile, const char* srcFileName) |
| { |
| unsigned long long outFileSize = 0; |
| z_stream strm; |
| int flush = Z_NO_FLUSH; |
| int ret; |
| |
| strm.zalloc = Z_NULL; |
| strm.zfree = Z_NULL; |
| strm.opaque = Z_NULL; |
| strm.next_in = 0; |
| strm.avail_in = 0; |
| /* see http://www.zlib.net/manual.html */ |
| if (inflateInit2(&strm, 15 /* maxWindowLogSize */ + 16 /* gzip only */) != Z_OK) |
| return 0; |
| |
| strm.next_out = (Bytef*)ress->dstBuffer; |
| strm.avail_out = (uInt)ress->dstBufferSize; |
| strm.avail_in = (uInt)ress->srcBufferLoaded; |
| strm.next_in = (z_const unsigned char*)ress->srcBuffer; |
| |
| for ( ; ; ) { |
| if (strm.avail_in == 0) { |
| ress->srcBufferLoaded = fread(ress->srcBuffer, 1, ress->srcBufferSize, srcFile); |
| if (ress->srcBufferLoaded == 0) flush = Z_FINISH; |
| strm.next_in = (z_const unsigned char*)ress->srcBuffer; |
| strm.avail_in = (uInt)ress->srcBufferLoaded; |
| } |
| ret = inflate(&strm, flush); |
| if (ret == Z_BUF_ERROR) EXM_THROW(39, "zstd: %s: premature end", srcFileName); |
| if (ret != Z_OK && ret != Z_STREAM_END) { |
| DISPLAY("zstd: %s: inflate error %d \n", srcFileName, ret); |
| return 0; |
| } |
| { size_t const decompBytes = ress->dstBufferSize - strm.avail_out; |
| if (decompBytes) { |
| if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes) |
| EXM_THROW(31, "Write error : cannot write to output file"); |
| outFileSize += decompBytes; |
| strm.next_out = (Bytef*)ress->dstBuffer; |
| strm.avail_out = (uInt)ress->dstBufferSize; |
| } |
| } |
| if (ret == Z_STREAM_END) break; |
| } |
| |
| if (strm.avail_in > 0) memmove(ress->srcBuffer, strm.next_in, strm.avail_in); |
| ress->srcBufferLoaded = strm.avail_in; |
| ret = inflateEnd(&strm); |
| if (ret != Z_OK) EXM_THROW(32, "zstd: %s: inflateEnd error %d", srcFileName, ret); |
| return outFileSize; |
| } |
| #endif |
| |
| |
| #ifdef ZSTD_LZMADECOMPRESS |
| static unsigned long long FIO_decompressLzmaFrame(dRess_t* ress, FILE* srcFile, const char* srcFileName, int plain_lzma) |
| { |
| unsigned long long outFileSize = 0; |
| lzma_stream strm = LZMA_STREAM_INIT; |
| lzma_action action = LZMA_RUN; |
| lzma_ret ret; |
| |
| strm.next_in = 0; |
| strm.avail_in = 0; |
| if (plain_lzma) { |
| ret = lzma_alone_decoder(&strm, UINT64_MAX); /* LZMA */ |
| } else { |
| ret = lzma_stream_decoder(&strm, UINT64_MAX, 0); /* XZ */ |
| } |
| |
| if (ret != LZMA_OK) |
| EXM_THROW(71, "zstd: %s: lzma_alone_decoder/lzma_stream_decoder error %d", |
| srcFileName, ret); |
| |
| strm.next_out = ress->dstBuffer; |
| strm.avail_out = ress->dstBufferSize; |
| strm.avail_in = ress->srcBufferLoaded; |
| strm.next_in = ress->srcBuffer; |
| |
| for ( ; ; ) { |
| if (strm.avail_in == 0) { |
| ress->srcBufferLoaded = fread(ress->srcBuffer, 1, ress->srcBufferSize, srcFile); |
| if (ress->srcBufferLoaded == 0) action = LZMA_FINISH; |
| strm.next_in = ress->srcBuffer; |
| strm.avail_in = ress->srcBufferLoaded; |
| } |
| ret = lzma_code(&strm, action); |
| |
| if (ret == LZMA_BUF_ERROR) |
| EXM_THROW(39, "zstd: %s: premature end", srcFileName); |
| if (ret != LZMA_OK && ret != LZMA_STREAM_END) { |
| DISPLAY("zstd: %s: lzma_code decoding error %d \n", srcFileName, ret); |
| return 0; |
| } |
| { size_t const decompBytes = ress->dstBufferSize - strm.avail_out; |
| if (decompBytes) { |
| if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes) |
| EXM_THROW(31, "Write error : cannot write to output file"); |
| outFileSize += decompBytes; |
| strm.next_out = ress->dstBuffer; |
| strm.avail_out = ress->dstBufferSize; |
| } } |
| if (ret == LZMA_STREAM_END) break; |
| } |
| |
| if (strm.avail_in > 0) memmove(ress->srcBuffer, strm.next_in, strm.avail_in); |
| ress->srcBufferLoaded = strm.avail_in; |
| lzma_end(&strm); |
| return outFileSize; |
| } |
| #endif |
| |
| #ifdef ZSTD_LZ4DECOMPRESS |
| static unsigned long long FIO_decompressLz4Frame(dRess_t* ress, |
| FILE* srcFile, const char* srcFileName) |
| { |
| unsigned long long filesize = 0; |
| LZ4F_errorCode_t nextToLoad; |
| LZ4F_decompressionContext_t dCtx; |
| LZ4F_errorCode_t const errorCode = LZ4F_createDecompressionContext(&dCtx, LZ4F_VERSION); |
| |
| if (LZ4F_isError(errorCode)) |
| EXM_THROW(61, "zstd: failed to create lz4 decompression context"); |
| |
| /* Init feed with magic number (already consumed from FILE* sFile) */ |
| { size_t inSize = 4; |
| size_t outSize= 0; |
| MEM_writeLE32(ress->srcBuffer, LZ4_MAGICNUMBER); |
| nextToLoad = LZ4F_decompress(dCtx, ress->dstBuffer, &outSize, ress->srcBuffer, &inSize, NULL); |
| if (LZ4F_isError(nextToLoad)) |
| EXM_THROW(62, "zstd: %s: lz4 header error : %s", |
| srcFileName, LZ4F_getErrorName(nextToLoad)); |
| } |
| |
| /* Main Loop */ |
| for (;nextToLoad;) { |
| size_t readSize; |
| size_t pos = 0; |
| size_t decodedBytes = ress->dstBufferSize; |
| |
| /* Read input */ |
| if (nextToLoad > ress->srcBufferSize) nextToLoad = ress->srcBufferSize; |
| readSize = fread(ress->srcBuffer, 1, nextToLoad, srcFile); |
| if (!readSize) break; /* reached end of file or stream */ |
| |
| while ((pos < readSize) || (decodedBytes == ress->dstBufferSize)) { /* still to read, or still to flush */ |
| /* Decode Input (at least partially) */ |
| size_t remaining = readSize - pos; |
| decodedBytes = ress->dstBufferSize; |
| nextToLoad = LZ4F_decompress(dCtx, ress->dstBuffer, &decodedBytes, (char*)(ress->srcBuffer)+pos, &remaining, NULL); |
| if (LZ4F_isError(nextToLoad)) |
| EXM_THROW(66, "zstd: %s: decompression error : %s", |
| srcFileName, LZ4F_getErrorName(nextToLoad)); |
| pos += remaining; |
| |
| /* Write Block */ |
| if (decodedBytes) { |
| if (fwrite(ress->dstBuffer, 1, decodedBytes, ress->dstFile) != decodedBytes) |
| EXM_THROW(63, "Write error : cannot write to output file"); |
| filesize += decodedBytes; |
| DISPLAYUPDATE(2, "\rDecompressed : %u MB ", (unsigned)(filesize>>20)); |
| } |
| |
| if (!nextToLoad) break; |
| } |
| } |
| /* can be out because readSize == 0, which could be an fread() error */ |
| if (ferror(srcFile)) EXM_THROW(67, "zstd: %s: read error", srcFileName); |
| |
| if (nextToLoad!=0) EXM_THROW(68, "zstd: %s: unfinished stream", srcFileName); |
| |
| LZ4F_freeDecompressionContext(dCtx); |
| ress->srcBufferLoaded = 0; /* LZ4F will go to the frame boundary */ |
| |
| return filesize; |
| } |
| #endif |
| |
| |
| |
| /** FIO_decompressSrcFile() : |
| Decompression `srcFileName` into `ress.dstFile` |
| @return : 0 : OK |
| 1 : operation not started |
| */ |
| static int FIO_decompressSrcFile(dRess_t ress, const char* dstFileName, const char* srcFileName) |
| { |
| FILE* srcFile; |
| unsigned readSomething = 0; |
| unsigned long long filesize = 0; |
| |
| if (UTIL_isDirectory(srcFileName)) { |
| DISPLAYLEVEL(1, "zstd: %s is a directory -- ignored \n", srcFileName); |
| return 1; |
| } |
| |
| srcFile = FIO_openSrcFile(srcFileName); |
| if (srcFile==NULL) return 1; |
| |
| /* for each frame */ |
| for ( ; ; ) { |
| /* check magic number -> version */ |
| size_t const toRead = 4; |
| const BYTE* buf = (const BYTE*)ress.srcBuffer; |
| if (ress.srcBufferLoaded < toRead) |
| ress.srcBufferLoaded += fread((char*)ress.srcBuffer + ress.srcBufferLoaded, |
| (size_t)1, toRead - ress.srcBufferLoaded, srcFile); |
| if (ress.srcBufferLoaded==0) { |
| if (readSomething==0) { |
| DISPLAY("zstd: %s: unexpected end of file \n", srcFileName); |
| fclose(srcFile); |
| return 1; |
| } /* srcFileName is empty */ |
| break; /* no more input */ |
| } |
| readSomething = 1; /* there is at least >= 4 bytes in srcFile */ |
| if (ress.srcBufferLoaded < toRead) { |
| DISPLAY("zstd: %s: unknown header \n", srcFileName); |
| fclose(srcFile); |
| return 1; |
| } |
| if (buf[0] == 31 && buf[1] == 139) { /* gz magic number */ |
| #ifdef ZSTD_GZDECOMPRESS |
| unsigned long long const result = FIO_decompressGzFrame(&ress, srcFile, srcFileName); |
| if (result == 0) return 1; |
| filesize += result; |
| #else |
| DISPLAYLEVEL(1, "zstd: %s: gzip file cannot be uncompressed (zstd compiled without ZSTD_GZDECOMPRESS) -- ignored \n", srcFileName); |
| return 1; |
| #endif |
| } else if ((buf[0] == 0xFD && buf[1] == 0x37) /* xz magic number */ |
| || (buf[0] == 0x5D && buf[1] == 0x00)) { /* lzma header (no magic number) */ |
| #ifdef ZSTD_LZMADECOMPRESS |
| unsigned long long const result = FIO_decompressLzmaFrame(&ress, srcFile, srcFileName, buf[0] != 0xFD); |
| if (result == 0) return 1; |
| filesize += result; |
| #else |
| DISPLAYLEVEL(1, "zstd: %s: xz/lzma file cannot be uncompressed (zstd compiled without ZSTD_LZMADECOMPRESS) -- ignored \n", srcFileName); |
| return 1; |
| #endif |
| } else if (MEM_readLE32(buf) == LZ4_MAGICNUMBER) { |
| #ifdef ZSTD_LZ4DECOMPRESS |
| unsigned long long const result = FIO_decompressLz4Frame(&ress, srcFile, srcFileName); |
| if (result == 0) return 1; |
| filesize += result; |
| #else |
| DISPLAYLEVEL(1, "zstd: %s: lz4 file cannot be uncompressed (zstd compiled without ZSTD_LZ4DECOMPRESS) -- ignored \n", srcFileName); |
| return 1; |
| #endif |
| } else { |
| if (!ZSTD_isFrame(ress.srcBuffer, toRead)) { |
| if ((g_overwrite) && !strcmp (dstFileName, stdoutmark)) { /* pass-through mode */ |
| unsigned const result = FIO_passThrough(ress.dstFile, srcFile, |
| ress.srcBuffer, ress.srcBufferSize, ress.srcBufferLoaded); |
| if (fclose(srcFile)) EXM_THROW(32, "zstd: %s close error", srcFileName); /* error should never happen */ |
| return result; |
| } else { |
| DISPLAYLEVEL(1, "zstd: %s: not in zstd format \n", srcFileName); |
| fclose(srcFile); |
| return 1; |
| } } |
| { unsigned long long const frameSize = FIO_decompressFrame(&ress, srcFile, srcFileName, filesize); |
| if (frameSize == FIO_ERROR_ZSTD_DECODING) { |
| fclose(srcFile); |
| return 1; |
| } |
| filesize += frameSize; |
| } } |
| } /* for each frame */ |
| |
| /* Final Status */ |
| DISPLAYLEVEL(2, "\r%79s\r", ""); |
| DISPLAYLEVEL(2, "%-20s: %llu bytes \n", srcFileName, filesize); |
| |
| /* Close file */ |
| if (fclose(srcFile)) EXM_THROW(33, "zstd: %s close error", srcFileName); /* error should never happen */ |
| if (g_removeSrcFile /* --rm */ && strcmp(srcFileName, stdinmark)) { |
| if (remove(srcFileName)) |
| EXM_THROW(34, "zstd: %s: %s", srcFileName, strerror(errno)); |
| } |
| return 0; |
| } |
| |
| |
| /** FIO_decompressFile_extRess() : |
| decompress `srcFileName` into `dstFileName` |
| @return : 0 : OK |
| 1 : operation aborted (src not available, dst already taken, etc.) |
| */ |
| static int FIO_decompressDstFile(dRess_t ress, |
| const char* dstFileName, const char* srcFileName) |
| { |
| int result; |
| stat_t statbuf; |
| int stat_result = 0; |
| |
| ress.dstFile = FIO_openDstFile(dstFileName); |
| if (ress.dstFile==0) return 1; |
| |
| if (strcmp (srcFileName, stdinmark) && UTIL_getFileStat(srcFileName, &statbuf)) |
| stat_result = 1; |
| result = FIO_decompressSrcFile(ress, dstFileName, srcFileName); |
| |
| if (fclose(ress.dstFile)) |
| EXM_THROW(38, "Write error : cannot properly close %s", dstFileName); |
| |
| if ( (result != 0) |
| && strcmp(dstFileName, nulmark) /* special case : don't remove() /dev/null (#316) */ |
| && remove(dstFileName) ) |
| result=1; /* don't do anything special if remove() fails */ |
| else if (strcmp (dstFileName, stdoutmark) && stat_result) |
| UTIL_setFileStat(dstFileName, &statbuf); |
| return result; |
| } |
| |
| |
| int FIO_decompressFilename(const char* dstFileName, const char* srcFileName, |
| const char* dictFileName) |
| { |
| int missingFiles = 0; |
| dRess_t ress = FIO_createDResources(dictFileName); |
| |
| missingFiles += FIO_decompressDstFile(ress, dstFileName, srcFileName); |
| |
| FIO_freeDResources(ress); |
| return missingFiles; |
| } |
| |
| |
| #define MAXSUFFIXSIZE 8 |
| int FIO_decompressMultipleFilenames(const char** srcNamesTable, unsigned nbFiles, |
| const char* suffix, |
| const char* dictFileName) |
| { |
| int skippedFiles = 0; |
| int missingFiles = 0; |
| dRess_t ress = FIO_createDResources(dictFileName); |
| |
| if (suffix==NULL) |
| EXM_THROW(70, "zstd: decompression: unknown dst"); /* should never happen */ |
| |
| if (!strcmp(suffix, stdoutmark) || !strcmp(suffix, nulmark)) { /* special cases : -c or -t */ |
| unsigned u; |
| ress.dstFile = FIO_openDstFile(suffix); |
| if (ress.dstFile == 0) EXM_THROW(71, "cannot open %s", suffix); |
| for (u=0; u<nbFiles; u++) |
| missingFiles += FIO_decompressSrcFile(ress, suffix, srcNamesTable[u]); |
| if (fclose(ress.dstFile)) |
| EXM_THROW(72, "Write error : cannot properly close stdout"); |
| } else { |
| size_t suffixSize; |
| size_t dfnSize = FNSPACE; |
| unsigned u; |
| char* dstFileName = (char*)malloc(FNSPACE); |
| if (dstFileName==NULL) |
| EXM_THROW(73, "not enough memory for dstFileName"); |
| for (u=0; u<nbFiles; u++) { /* create dstFileName */ |
| const char* const srcFileName = srcNamesTable[u]; |
| const char* const suffixPtr = strrchr(srcFileName, '.'); |
| size_t const sfnSize = strlen(srcFileName); |
| if (!suffixPtr) { |
| DISPLAYLEVEL(1, "zstd: %s: unknown suffix -- ignored \n", |
| srcFileName); |
| skippedFiles++; |
| continue; |
| } |
| suffixSize = strlen(suffixPtr); |
| if (dfnSize+suffixSize <= sfnSize+1) { |
| free(dstFileName); |
| dfnSize = sfnSize + 20; |
| dstFileName = (char*)malloc(dfnSize); |
| if (dstFileName==NULL) |
| EXM_THROW(74, "not enough memory for dstFileName"); |
| } |
| if (sfnSize <= suffixSize |
| || (strcmp(suffixPtr, GZ_EXTENSION) |
| && strcmp(suffixPtr, XZ_EXTENSION) |
| && strcmp(suffixPtr, ZSTD_EXTENSION) |
| && strcmp(suffixPtr, LZMA_EXTENSION) |
| && strcmp(suffixPtr, LZ4_EXTENSION)) ) { |
| DISPLAYLEVEL(1, "zstd: %s: unknown suffix (%s/%s/%s/%s/%s expected) -- ignored \n", |
| srcFileName, GZ_EXTENSION, XZ_EXTENSION, ZSTD_EXTENSION, LZMA_EXTENSION, LZ4_EXTENSION); |
| skippedFiles++; |
| continue; |
| } else { |
| memcpy(dstFileName, srcFileName, sfnSize - suffixSize); |
| dstFileName[sfnSize-suffixSize] = '\0'; |
| } |
| missingFiles += FIO_decompressDstFile(ress, dstFileName, srcFileName); |
| } |
| free(dstFileName); |
| } |
| |
| FIO_freeDResources(ress); |
| return missingFiles + skippedFiles; |
| } |
| |
| #endif /* #ifndef ZSTD_NODECOMPRESS */ |
