| /* |
| * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| #include <windows.h> |
| #include <io.h> |
| #include <process.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <stdarg.h> |
| #include <string.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <wtypes.h> |
| #include <commctrl.h> |
| |
| #include <jni.h> |
| #include "java.h" |
| #include "version_comp.h" |
| |
| #define JVM_DLL "jvm.dll" |
| #define JAVA_DLL "java.dll" |
| #define CRT_DLL "msvcr71.dll" |
| |
| /* |
| * Prototypes. |
| */ |
| static jboolean GetPublicJREHome(char *path, jint pathsize); |
| static jboolean GetJVMPath(const char *jrepath, const char *jvmtype, |
| char *jvmpath, jint jvmpathsize); |
| static jboolean GetJREPath(char *path, jint pathsize); |
| |
| static jboolean _isjavaw = JNI_FALSE; |
| |
| |
| jboolean |
| IsJavaw() |
| { |
| return _isjavaw; |
| } |
| |
| /* |
| * Returns the arch path, to get the current arch use the |
| * macro GetArch, nbits here is ignored for now. |
| */ |
| const char * |
| GetArchPath(int nbits) |
| { |
| #ifdef _M_AMD64 |
| return "amd64"; |
| #elif defined(_M_IA64) |
| return "ia64"; |
| #else |
| return "i386"; |
| #endif |
| } |
| |
| /* |
| * |
| */ |
| void |
| CreateExecutionEnvironment(int *_argc, |
| char ***_argv, |
| char jrepath[], |
| jint so_jrepath, |
| char jvmpath[], |
| jint so_jvmpath, |
| char **original_argv) { |
| char * jvmtype; |
| int i = 0; |
| char** pargv = *_argv; |
| int running = CURRENT_DATA_MODEL; |
| |
| int wanted = running; |
| |
| for (i = 0; i < *_argc ; i++) { |
| if (JLI_StrCmp(pargv[i], "-J-d64") == 0 || JLI_StrCmp(pargv[i], "-d64") == 0) { |
| wanted = 64; |
| continue; |
| } |
| if (JLI_StrCmp(pargv[i], "-J-d32") == 0 || JLI_StrCmp(pargv[i], "-d32") == 0) { |
| wanted = 32; |
| continue; |
| } |
| } |
| if (running != wanted) { |
| ReportErrorMessage(JRE_ERROR2, wanted); |
| exit(1); |
| } |
| |
| /* Find out where the JRE is that we will be using. */ |
| if (!GetJREPath(jrepath, so_jrepath)) { |
| ReportErrorMessage(JRE_ERROR1); |
| exit(2); |
| } |
| |
| /* Find the specified JVM type */ |
| if (ReadKnownVMs(jrepath, (char*)GetArch(), JNI_FALSE) < 1) { |
| ReportErrorMessage(CFG_ERROR7); |
| exit(1); |
| } |
| jvmtype = CheckJvmType(_argc, _argv, JNI_FALSE); |
| |
| jvmpath[0] = '\0'; |
| if (!GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath)) { |
| ReportErrorMessage(CFG_ERROR8, jvmtype, jvmpath); |
| exit(4); |
| } |
| /* If we got here, jvmpath has been correctly initialized. */ |
| |
| } |
| |
| /* |
| * Find path to JRE based on .exe's location or registry settings. |
| */ |
| jboolean |
| GetJREPath(char *path, jint pathsize) |
| { |
| char javadll[MAXPATHLEN]; |
| struct stat s; |
| |
| if (GetApplicationHome(path, pathsize)) { |
| /* Is JRE co-located with the application? */ |
| sprintf(javadll, "%s\\bin\\" JAVA_DLL, path); |
| if (stat(javadll, &s) == 0) { |
| goto found; |
| } |
| |
| /* Does this app ship a private JRE in <apphome>\jre directory? */ |
| sprintf(javadll, "%s\\jre\\bin\\" JAVA_DLL, path); |
| if (stat(javadll, &s) == 0) { |
| JLI_StrCat(path, "\\jre"); |
| goto found; |
| } |
| } |
| |
| /* Look for a public JRE on this machine. */ |
| if (GetPublicJREHome(path, pathsize)) { |
| goto found; |
| } |
| |
| ReportErrorMessage(JRE_ERROR8 JAVA_DLL); |
| return JNI_FALSE; |
| |
| found: |
| JLI_TraceLauncher("JRE path is %s\n", path); |
| return JNI_TRUE; |
| } |
| |
| /* |
| * Given a JRE location and a JVM type, construct what the name the |
| * JVM shared library will be. Return true, if such a library |
| * exists, false otherwise. |
| */ |
| static jboolean |
| GetJVMPath(const char *jrepath, const char *jvmtype, |
| char *jvmpath, jint jvmpathsize) |
| { |
| struct stat s; |
| if (JLI_StrChr(jvmtype, '/') || JLI_StrChr(jvmtype, '\\')) { |
| sprintf(jvmpath, "%s\\" JVM_DLL, jvmtype); |
| } else { |
| sprintf(jvmpath, "%s\\bin\\%s\\" JVM_DLL, jrepath, jvmtype); |
| } |
| if (stat(jvmpath, &s) == 0) { |
| return JNI_TRUE; |
| } else { |
| return JNI_FALSE; |
| } |
| } |
| |
| /* |
| * Load a jvm from "jvmpath" and initialize the invocation functions. |
| */ |
| jboolean |
| LoadJavaVM(const char *jvmpath, InvocationFunctions *ifn) |
| { |
| HINSTANCE handle; |
| char crtpath[MAXPATHLEN]; |
| |
| JLI_TraceLauncher("JVM path is %s\n", jvmpath); |
| |
| /* |
| * The Microsoft C Runtime Library needs to be loaded first. A copy is |
| * assumed to be present in the "JRE path" directory. If it is not found |
| * there (or "JRE path" fails to resolve), skip the explicit load and let |
| * nature take its course, which is likely to be a failure to execute. |
| */ |
| if (GetJREPath(crtpath, MAXPATHLEN)) { |
| (void)JLI_StrCat(crtpath, "\\bin\\" CRT_DLL); /* Add crt dll */ |
| JLI_TraceLauncher("CRT path is %s\n", crtpath); |
| if (_access(crtpath, 0) == 0) { |
| if (LoadLibrary(crtpath) == 0) { |
| ReportErrorMessage(DLL_ERROR4, crtpath); |
| return JNI_FALSE; |
| } |
| } |
| } |
| |
| /* Load the Java VM DLL */ |
| if ((handle = LoadLibrary(jvmpath)) == 0) { |
| ReportErrorMessage(DLL_ERROR4, (char *)jvmpath); |
| return JNI_FALSE; |
| } |
| |
| /* Now get the function addresses */ |
| ifn->CreateJavaVM = |
| (void *)GetProcAddress(handle, "JNI_CreateJavaVM"); |
| ifn->GetDefaultJavaVMInitArgs = |
| (void *)GetProcAddress(handle, "JNI_GetDefaultJavaVMInitArgs"); |
| if (ifn->CreateJavaVM == 0 || ifn->GetDefaultJavaVMInitArgs == 0) { |
| ReportErrorMessage(JNI_ERROR1, (char *)jvmpath); |
| return JNI_FALSE; |
| } |
| |
| return JNI_TRUE; |
| } |
| |
| /* |
| * If app is "c:\foo\bin\javac", then put "c:\foo" into buf. |
| */ |
| jboolean |
| GetApplicationHome(char *buf, jint bufsize) |
| { |
| char *cp; |
| GetModuleFileName(0, buf, bufsize); |
| *JLI_StrRChr(buf, '\\') = '\0'; /* remove .exe file name */ |
| if ((cp = JLI_StrRChr(buf, '\\')) == 0) { |
| /* This happens if the application is in a drive root, and |
| * there is no bin directory. */ |
| buf[0] = '\0'; |
| return JNI_FALSE; |
| } |
| *cp = '\0'; /* remove the bin\ part */ |
| return JNI_TRUE; |
| } |
| |
| /* |
| * Helpers to look in the registry for a public JRE. |
| */ |
| /* Same for 1.5.0, 1.5.1, 1.5.2 etc. */ |
| #define JRE_KEY "Software\\JavaSoft\\Java Runtime Environment" |
| |
| static jboolean |
| GetStringFromRegistry(HKEY key, const char *name, char *buf, jint bufsize) |
| { |
| DWORD type, size; |
| |
| if (RegQueryValueEx(key, name, 0, &type, 0, &size) == 0 |
| && type == REG_SZ |
| && (size < (unsigned int)bufsize)) { |
| if (RegQueryValueEx(key, name, 0, 0, buf, &size) == 0) { |
| return JNI_TRUE; |
| } |
| } |
| return JNI_FALSE; |
| } |
| |
| static jboolean |
| GetPublicJREHome(char *buf, jint bufsize) |
| { |
| HKEY key, subkey; |
| char version[MAXPATHLEN]; |
| |
| /* |
| * Note: There is a very similar implementation of the following |
| * registry reading code in the Windows java control panel (javacp.cpl). |
| * If there are bugs here, a similar bug probably exists there. Hence, |
| * changes here require inspection there. |
| */ |
| |
| /* Find the current version of the JRE */ |
| if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, JRE_KEY, 0, KEY_READ, &key) != 0) { |
| ReportErrorMessage(REG_ERROR1, JRE_KEY); |
| return JNI_FALSE; |
| } |
| |
| if (!GetStringFromRegistry(key, "CurrentVersion", |
| version, sizeof(version))) { |
| ReportErrorMessage(REG_ERROR2, JRE_KEY); |
| RegCloseKey(key); |
| return JNI_FALSE; |
| } |
| |
| if (JLI_StrCmp(version, GetDotVersion()) != 0) { |
| ReportErrorMessage(REG_ERROR3, JRE_KEY, version, GetDotVersion() |
| ); |
| RegCloseKey(key); |
| return JNI_FALSE; |
| } |
| |
| /* Find directory where the current version is installed. */ |
| if (RegOpenKeyEx(key, version, 0, KEY_READ, &subkey) != 0) { |
| ReportErrorMessage(REG_ERROR1, JRE_KEY, version); |
| RegCloseKey(key); |
| return JNI_FALSE; |
| } |
| |
| if (!GetStringFromRegistry(subkey, "JavaHome", buf, bufsize)) { |
| ReportErrorMessage(REG_ERROR4, JRE_KEY, version); |
| RegCloseKey(key); |
| RegCloseKey(subkey); |
| return JNI_FALSE; |
| } |
| |
| if (JLI_IsTraceLauncher()) { |
| char micro[MAXPATHLEN]; |
| if (!GetStringFromRegistry(subkey, "MicroVersion", micro, |
| sizeof(micro))) { |
| printf("Warning: Can't read MicroVersion\n"); |
| micro[0] = '\0'; |
| } |
| printf("Version major.minor.micro = %s.%s\n", version, micro); |
| } |
| |
| RegCloseKey(key); |
| RegCloseKey(subkey); |
| return JNI_TRUE; |
| } |
| |
| /* |
| * Support for doing cheap, accurate interval timing. |
| */ |
| static jboolean counterAvailable = JNI_FALSE; |
| static jboolean counterInitialized = JNI_FALSE; |
| static LARGE_INTEGER counterFrequency; |
| |
| jlong CounterGet() |
| { |
| LARGE_INTEGER count; |
| |
| if (!counterInitialized) { |
| counterAvailable = QueryPerformanceFrequency(&counterFrequency); |
| counterInitialized = JNI_TRUE; |
| } |
| if (!counterAvailable) { |
| return 0; |
| } |
| QueryPerformanceCounter(&count); |
| return (jlong)(count.QuadPart); |
| } |
| |
| jlong Counter2Micros(jlong counts) |
| { |
| if (!counterAvailable || !counterInitialized) { |
| return 0; |
| } |
| return (counts * 1000 * 1000)/counterFrequency.QuadPart; |
| } |
| |
| void |
| ReportErrorMessage(const char* fmt, ...) { |
| va_list vl; |
| va_start(vl,fmt); |
| |
| if (IsJavaw()) { |
| char *message; |
| |
| /* get the length of the string we need */ |
| int n = _vscprintf(fmt, vl); |
| |
| message = (char *)JLI_MemAlloc(n + 1); |
| _vsnprintf(message, n, fmt, vl); |
| message[n]='\0'; |
| MessageBox(NULL, message, "Java Virtual Machine Launcher", |
| (MB_OK|MB_ICONSTOP|MB_APPLMODAL)); |
| JLI_MemFree(message); |
| } else { |
| vfprintf(stderr, fmt, vl); |
| fprintf(stderr, "\n"); |
| } |
| va_end(vl); |
| } |
| |
| /* |
| * Just like ReportErrorMessage, except that it concatenates the system |
| * error message if any, its upto the calling routine to correctly |
| * format the separation of the messages. |
| */ |
| void |
| ReportErrorMessageSys(const char *fmt, ...) |
| { |
| va_list vl; |
| |
| int save_errno = errno; |
| DWORD errval; |
| jboolean freeit = JNI_FALSE; |
| char *errtext = NULL; |
| |
| va_start(vl, fmt); |
| |
| if ((errval = GetLastError()) != 0) { /* Platform SDK / DOS Error */ |
| int n = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM| |
| FORMAT_MESSAGE_IGNORE_INSERTS|FORMAT_MESSAGE_ALLOCATE_BUFFER, |
| NULL, errval, 0, (LPTSTR)&errtext, 0, NULL); |
| if (errtext == NULL || n == 0) { /* Paranoia check */ |
| errtext = ""; |
| n = 0; |
| } else { |
| freeit = JNI_TRUE; |
| if (n > 2) { /* Drop final CR, LF */ |
| if (errtext[n - 1] == '\n') n--; |
| if (errtext[n - 1] == '\r') n--; |
| errtext[n] = '\0'; |
| } |
| } |
| } else { /* C runtime error that has no corresponding DOS error code */ |
| errtext = strerror(save_errno); |
| } |
| |
| if (IsJavaw()) { |
| char *message; |
| int mlen; |
| /* get the length of the string we need */ |
| int len = mlen = _vscprintf(fmt, vl) + 1; |
| if (freeit) { |
| mlen += JLI_StrLen(errtext); |
| } |
| |
| message = (char *)JLI_MemAlloc(mlen); |
| _vsnprintf(message, len, fmt, vl); |
| message[len]='\0'; |
| |
| if (freeit) { |
| JLI_StrCat(message, errtext); |
| } |
| |
| MessageBox(NULL, message, "Java Virtual Machine Launcher", |
| (MB_OK|MB_ICONSTOP|MB_APPLMODAL)); |
| |
| JLI_MemFree(message); |
| } else { |
| vfprintf(stderr, fmt, vl); |
| if (freeit) { |
| fprintf(stderr, "%s", errtext); |
| } |
| } |
| if (freeit) { |
| (void)LocalFree((HLOCAL)errtext); |
| } |
| va_end(vl); |
| } |
| |
| void ReportExceptionDescription(JNIEnv * env) { |
| if (IsJavaw()) { |
| /* |
| * This code should be replaced by code which opens a window with |
| * the exception detail message, for now atleast put a dialog up. |
| */ |
| MessageBox(NULL, "A Java Exception has occurred.", "Java Virtual Machine Launcher", |
| (MB_OK|MB_ICONSTOP|MB_APPLMODAL)); |
| } else { |
| (*env)->ExceptionDescribe(env); |
| } |
| } |
| |
| jboolean |
| ServerClassMachine() { |
| return (GetErgoPolicy() == ALWAYS_SERVER_CLASS) ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| /* |
| * Determine if there is an acceptable JRE in the registry directory top_key. |
| * Upon locating the "best" one, return a fully qualified path to it. |
| * "Best" is defined as the most advanced JRE meeting the constraints |
| * contained in the manifest_info. If no JRE in this directory meets the |
| * constraints, return NULL. |
| * |
| * It doesn't matter if we get an error reading the registry, or we just |
| * don't find anything interesting in the directory. We just return NULL |
| * in either case. |
| */ |
| static char * |
| ProcessDir(manifest_info* info, HKEY top_key) { |
| DWORD index = 0; |
| HKEY ver_key; |
| char name[MAXNAMELEN]; |
| int len; |
| char *best = NULL; |
| |
| /* |
| * Enumerate "<top_key>/SOFTWARE/JavaSoft/Java Runtime Environment" |
| * searching for the best available version. |
| */ |
| while (RegEnumKey(top_key, index, name, MAXNAMELEN) == ERROR_SUCCESS) { |
| index++; |
| if (JLI_AcceptableRelease(name, info->jre_version)) |
| if ((best == NULL) || (JLI_ExactVersionId(name, best) > 0)) { |
| if (best != NULL) |
| JLI_MemFree(best); |
| best = JLI_StringDup(name); |
| } |
| } |
| |
| /* |
| * Extract "JavaHome" from the "best" registry directory and return |
| * that path. If no appropriate version was located, or there is an |
| * error in extracting the "JavaHome" string, return null. |
| */ |
| if (best == NULL) |
| return (NULL); |
| else { |
| if (RegOpenKeyEx(top_key, best, 0, KEY_READ, &ver_key) |
| != ERROR_SUCCESS) { |
| JLI_MemFree(best); |
| if (ver_key != NULL) |
| RegCloseKey(ver_key); |
| return (NULL); |
| } |
| JLI_MemFree(best); |
| len = MAXNAMELEN; |
| if (RegQueryValueEx(ver_key, "JavaHome", NULL, NULL, (LPBYTE)name, &len) |
| != ERROR_SUCCESS) { |
| if (ver_key != NULL) |
| RegCloseKey(ver_key); |
| return (NULL); |
| } |
| if (ver_key != NULL) |
| RegCloseKey(ver_key); |
| return (JLI_StringDup(name)); |
| } |
| } |
| |
| /* |
| * This is the global entry point. It examines the host for the optimal |
| * JRE to be used by scanning a set of registry entries. This set of entries |
| * is hardwired on Windows as "Software\JavaSoft\Java Runtime Environment" |
| * under the set of roots "{ HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE }". |
| * |
| * This routine simply opens each of these registry directories before passing |
| * control onto ProcessDir(). |
| */ |
| char * |
| LocateJRE(manifest_info* info) { |
| HKEY key = NULL; |
| char *path; |
| int key_index; |
| HKEY root_keys[2] = { HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE }; |
| |
| for (key_index = 0; key_index <= 1; key_index++) { |
| if (RegOpenKeyEx(root_keys[key_index], JRE_KEY, 0, KEY_READ, &key) |
| == ERROR_SUCCESS) |
| if ((path = ProcessDir(info, key)) != NULL) { |
| if (key != NULL) |
| RegCloseKey(key); |
| return (path); |
| } |
| if (key != NULL) |
| RegCloseKey(key); |
| } |
| return NULL; |
| } |
| |
| /* |
| * Local helper routine to isolate a single token (option or argument) |
| * from the command line. |
| * |
| * This routine accepts a pointer to a character pointer. The first |
| * token (as defined by MSDN command-line argument syntax) is isolated |
| * from that string. |
| * |
| * Upon return, the input character pointer pointed to by the parameter s |
| * is updated to point to the remainding, unscanned, portion of the string, |
| * or to a null character if the entire string has been consummed. |
| * |
| * This function returns a pointer to a null-terminated string which |
| * contains the isolated first token, or to the null character if no |
| * token could be isolated. |
| * |
| * Note the side effect of modifying the input string s by the insertion |
| * of a null character, making it two strings. |
| * |
| * See "Parsing C Command-Line Arguments" in the MSDN Library for the |
| * parsing rule details. The rule summary from that specification is: |
| * |
| * * Arguments are delimited by white space, which is either a space or a tab. |
| * |
| * * A string surrounded by double quotation marks is interpreted as a single |
| * argument, regardless of white space contained within. A quoted string can |
| * be embedded in an argument. Note that the caret (^) is not recognized as |
| * an escape character or delimiter. |
| * |
| * * A double quotation mark preceded by a backslash, \", is interpreted as a |
| * literal double quotation mark ("). |
| * |
| * * Backslashes are interpreted literally, unless they immediately precede a |
| * double quotation mark. |
| * |
| * * If an even number of backslashes is followed by a double quotation mark, |
| * then one backslash (\) is placed in the argv array for every pair of |
| * backslashes (\\), and the double quotation mark (") is interpreted as a |
| * string delimiter. |
| * |
| * * If an odd number of backslashes is followed by a double quotation mark, |
| * then one backslash (\) is placed in the argv array for every pair of |
| * backslashes (\\) and the double quotation mark is interpreted as an |
| * escape sequence by the remaining backslash, causing a literal double |
| * quotation mark (") to be placed in argv. |
| */ |
| static char* |
| nextarg(char** s) { |
| char *p = *s; |
| char *head; |
| int slashes = 0; |
| int inquote = 0; |
| |
| /* |
| * Strip leading whitespace, which MSDN defines as only space or tab. |
| * (Hence, no locale specific "isspace" here.) |
| */ |
| while (*p != (char)0 && (*p == ' ' || *p == '\t')) |
| p++; |
| head = p; /* Save the start of the token to return */ |
| |
| /* |
| * Isolate a token from the command line. |
| */ |
| while (*p != (char)0 && (inquote || !(*p == ' ' || *p == '\t'))) { |
| if (*p == '\\' && *(p+1) == '"' && slashes % 2 == 0) |
| p++; |
| else if (*p == '"') |
| inquote = !inquote; |
| slashes = (*p++ == '\\') ? slashes + 1 : 0; |
| } |
| |
| /* |
| * If the token isolated isn't already terminated in a "char zero", |
| * then replace the whitespace character with one and move to the |
| * next character. |
| */ |
| if (*p != (char)0) |
| *p++ = (char)0; |
| |
| /* |
| * Update the parameter to point to the head of the remaining string |
| * reflecting the command line and return a pointer to the leading |
| * token which was isolated from the command line. |
| */ |
| *s = p; |
| return (head); |
| } |
| |
| /* |
| * Local helper routine to return a string equivalent to the input string |
| * s, but with quotes removed so the result is a string as would be found |
| * in argv[]. The returned string should be freed by a call to JLI_MemFree(). |
| * |
| * The rules for quoting (and escaped quotes) are: |
| * |
| * 1 A double quotation mark preceded by a backslash, \", is interpreted as a |
| * literal double quotation mark ("). |
| * |
| * 2 Backslashes are interpreted literally, unless they immediately precede a |
| * double quotation mark. |
| * |
| * 3 If an even number of backslashes is followed by a double quotation mark, |
| * then one backslash (\) is placed in the argv array for every pair of |
| * backslashes (\\), and the double quotation mark (") is interpreted as a |
| * string delimiter. |
| * |
| * 4 If an odd number of backslashes is followed by a double quotation mark, |
| * then one backslash (\) is placed in the argv array for every pair of |
| * backslashes (\\) and the double quotation mark is interpreted as an |
| * escape sequence by the remaining backslash, causing a literal double |
| * quotation mark (") to be placed in argv. |
| */ |
| static char* |
| unquote(const char *s) { |
| const char *p = s; /* Pointer to the tail of the original string */ |
| char *un = (char*)JLI_MemAlloc(JLI_StrLen(s) + 1); /* Ptr to unquoted string */ |
| char *pun = un; /* Pointer to the tail of the unquoted string */ |
| |
| while (*p != '\0') { |
| if (*p == '"') { |
| p++; |
| } else if (*p == '\\') { |
| const char *q = p + JLI_StrSpn(p,"\\"); |
| if (*q == '"') |
| do { |
| *pun++ = '\\'; |
| p += 2; |
| } while (*p == '\\' && p < q); |
| else |
| while (p < q) |
| *pun++ = *p++; |
| } else { |
| *pun++ = *p++; |
| } |
| } |
| *pun = '\0'; |
| return un; |
| } |
| |
| /* |
| * Given a path to a jre to execute, this routine checks if this process |
| * is indeed that jre. If not, it exec's that jre. |
| * |
| * We want to actually check the paths rather than just the version string |
| * built into the executable, so that given version specification will yield |
| * the exact same Java environment, regardless of the version of the arbitrary |
| * launcher we start with. |
| */ |
| void |
| ExecJRE(char *jre, char **argv) { |
| int len; |
| char path[MAXPATHLEN + 1]; |
| |
| const char *progname = GetProgramName(); |
| |
| /* |
| * Resolve the real path to the currently running launcher. |
| */ |
| len = GetModuleFileName(NULL, path, MAXPATHLEN + 1); |
| if (len == 0 || len > MAXPATHLEN) { |
| ReportErrorMessageSys(JRE_ERROR9, progname); |
| exit(1); |
| } |
| |
| JLI_TraceLauncher("ExecJRE: old: %s\n", path); |
| JLI_TraceLauncher("ExecJRE: new: %s\n", jre); |
| |
| /* |
| * If the path to the selected JRE directory is a match to the initial |
| * portion of the path to the currently executing JRE, we have a winner! |
| * If so, just return. |
| */ |
| if (JLI_StrNCaseCmp(jre, path, JLI_StrLen(jre)) == 0) |
| return; /* I am the droid you were looking for */ |
| |
| /* |
| * If this isn't the selected version, exec the selected version. |
| */ |
| (void)JLI_StrCat(JLI_StrCat(JLI_StrCpy(path, jre), "\\bin\\"), progname); |
| (void)JLI_StrCat(path, ".exe"); |
| |
| /* |
| * Although Windows has an execv() entrypoint, it doesn't actually |
| * overlay a process: it can only create a new process and terminate |
| * the old process. Therefore, any processes waiting on the initial |
| * process wake up and they shouldn't. Hence, a chain of pseudo-zombie |
| * processes must be retained to maintain the proper wait semantics. |
| * Fortunately the image size of the launcher isn't too large at this |
| * time. |
| * |
| * If it weren't for this semantic flaw, the code below would be ... |
| * |
| * execv(path, argv); |
| * ReportErrorMessage("Error: Exec of %s failed\n", path); |
| * exit(1); |
| * |
| * The incorrect exec semantics could be addressed by: |
| * |
| * exit((int)spawnv(_P_WAIT, path, argv)); |
| * |
| * Unfortunately, a bug in Windows spawn/exec impementation prevents |
| * this from completely working. All the Windows POSIX process creation |
| * interfaces are implemented as wrappers around the native Windows |
| * function CreateProcess(). CreateProcess() takes a single string |
| * to specify command line options and arguments, so the POSIX routine |
| * wrappers build a single string from the argv[] array and in the |
| * process, any quoting information is lost. |
| * |
| * The solution to this to get the original command line, to process it |
| * to remove the new multiple JRE options (if any) as was done for argv |
| * in the common SelectVersion() routine and finally to pass it directly |
| * to the native CreateProcess() Windows process control interface. |
| */ |
| { |
| char *cmdline; |
| char *p; |
| char *np; |
| char *ocl; |
| char *ccl; |
| char *unquoted; |
| DWORD exitCode; |
| STARTUPINFO si; |
| PROCESS_INFORMATION pi; |
| |
| /* |
| * The following code block gets and processes the original command |
| * line, replacing the argv[0] equivalent in the command line with |
| * the path to the new executable and removing the appropriate |
| * Multiple JRE support options. Note that similar logic exists |
| * in the platform independent SelectVersion routine, but is |
| * replicated here due to the syntax of CreateProcess(). |
| * |
| * The magic "+ 4" characters added to the command line length are |
| * 2 possible quotes around the path (argv[0]), a space after the |
| * path and a terminating null character. |
| */ |
| ocl = GetCommandLine(); |
| np = ccl = JLI_StringDup(ocl); |
| p = nextarg(&np); /* Discard argv[0] */ |
| cmdline = (char *)JLI_MemAlloc(JLI_StrLen(path) + JLI_StrLen(np) + 4); |
| if (JLI_StrChr(path, (int)' ') == NULL && JLI_StrChr(path, (int)'\t') == NULL) |
| cmdline = JLI_StrCpy(cmdline, path); |
| else |
| cmdline = JLI_StrCat(JLI_StrCat(JLI_StrCpy(cmdline, "\""), path), "\""); |
| |
| while (*np != (char)0) { /* While more command-line */ |
| p = nextarg(&np); |
| if (*p != (char)0) { /* If a token was isolated */ |
| unquoted = unquote(p); |
| if (*unquoted == '-') { /* Looks like an option */ |
| if (JLI_StrCmp(unquoted, "-classpath") == 0 || |
| JLI_StrCmp(unquoted, "-cp") == 0) { /* Unique cp syntax */ |
| cmdline = JLI_StrCat(JLI_StrCat(cmdline, " "), p); |
| p = nextarg(&np); |
| if (*p != (char)0) /* If a token was isolated */ |
| cmdline = JLI_StrCat(JLI_StrCat(cmdline, " "), p); |
| } else if (JLI_StrNCmp(unquoted, "-version:", 9) != 0 && |
| JLI_StrCmp(unquoted, "-jre-restrict-search") != 0 && |
| JLI_StrCmp(unquoted, "-no-jre-restrict-search") != 0) { |
| cmdline = JLI_StrCat(JLI_StrCat(cmdline, " "), p); |
| } |
| } else { /* End of options */ |
| cmdline = JLI_StrCat(JLI_StrCat(cmdline, " "), p); |
| cmdline = JLI_StrCat(JLI_StrCat(cmdline, " "), np); |
| JLI_MemFree((void *)unquoted); |
| break; |
| } |
| JLI_MemFree((void *)unquoted); |
| } |
| } |
| JLI_MemFree((void *)ccl); |
| |
| if (JLI_IsTraceLauncher()) { |
| np = ccl = JLI_StringDup(cmdline); |
| p = nextarg(&np); |
| printf("ReExec Command: %s (%s)\n", path, p); |
| printf("ReExec Args: %s\n", np); |
| JLI_MemFree((void *)ccl); |
| } |
| (void)fflush(stdout); |
| (void)fflush(stderr); |
| |
| /* |
| * The following code is modeled after a model presented in the |
| * Microsoft Technical Article "Moving Unix Applications to |
| * Windows NT" (March 6, 1994) and "Creating Processes" on MSDN |
| * (Februrary 2005). It approximates UNIX spawn semantics with |
| * the parent waiting for termination of the child. |
| */ |
| memset(&si, 0, sizeof(si)); |
| si.cb =sizeof(STARTUPINFO); |
| memset(&pi, 0, sizeof(pi)); |
| |
| if (!CreateProcess((LPCTSTR)path, /* executable name */ |
| (LPTSTR)cmdline, /* command line */ |
| (LPSECURITY_ATTRIBUTES)NULL, /* process security attr. */ |
| (LPSECURITY_ATTRIBUTES)NULL, /* thread security attr. */ |
| (BOOL)TRUE, /* inherits system handles */ |
| (DWORD)0, /* creation flags */ |
| (LPVOID)NULL, /* environment block */ |
| (LPCTSTR)NULL, /* current directory */ |
| (LPSTARTUPINFO)&si, /* (in) startup information */ |
| (LPPROCESS_INFORMATION)&pi)) { /* (out) process information */ |
| ReportErrorMessageSys(SYS_ERROR1, path); |
| exit(1); |
| } |
| |
| if (WaitForSingleObject(pi.hProcess, INFINITE) != WAIT_FAILED) { |
| if (GetExitCodeProcess(pi.hProcess, &exitCode) == FALSE) |
| exitCode = 1; |
| } else { |
| ReportErrorMessage(SYS_ERROR2); |
| exitCode = 1; |
| } |
| |
| CloseHandle(pi.hThread); |
| CloseHandle(pi.hProcess); |
| |
| exit(exitCode); |
| } |
| |
| } |
| |
| /* |
| * Wrapper for platform dependent unsetenv function. |
| */ |
| int |
| UnsetEnv(char *name) |
| { |
| int ret; |
| char *buf = JLI_MemAlloc(JLI_StrLen(name) + 2); |
| buf = JLI_StrCat(JLI_StrCpy(buf, name), "="); |
| ret = _putenv(buf); |
| JLI_MemFree(buf); |
| return (ret); |
| } |
| |
| /* --- Splash Screen shared library support --- */ |
| |
| static const char* SPLASHSCREEN_SO = "\\bin\\splashscreen.dll"; |
| |
| static HMODULE hSplashLib = NULL; |
| |
| void* SplashProcAddress(const char* name) { |
| char libraryPath[MAXPATHLEN]; /* some extra space for JLI_StrCat'ing SPLASHSCREEN_SO */ |
| |
| if (!GetJREPath(libraryPath, MAXPATHLEN)) { |
| return NULL; |
| } |
| if (JLI_StrLen(libraryPath)+JLI_StrLen(SPLASHSCREEN_SO) >= MAXPATHLEN) { |
| return NULL; |
| } |
| JLI_StrCat(libraryPath, SPLASHSCREEN_SO); |
| |
| if (!hSplashLib) { |
| hSplashLib = LoadLibrary(libraryPath); |
| } |
| if (hSplashLib) { |
| return GetProcAddress(hSplashLib, name); |
| } else { |
| return NULL; |
| } |
| } |
| |
| void SplashFreeLibrary() { |
| if (hSplashLib) { |
| FreeLibrary(hSplashLib); |
| hSplashLib = NULL; |
| } |
| } |
| |
| const char * |
| jlong_format_specifier() { |
| return "%I64d"; |
| } |
| |
| /* |
| * Block current thread and continue execution in a new thread |
| */ |
| int |
| ContinueInNewThread0(int (JNICALL *continuation)(void *), jlong stack_size, void * args) { |
| int rslt = 0; |
| unsigned thread_id; |
| |
| #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION |
| #define STACK_SIZE_PARAM_IS_A_RESERVATION (0x10000) |
| #endif |
| |
| /* |
| * STACK_SIZE_PARAM_IS_A_RESERVATION is what we want, but it's not |
| * supported on older version of Windows. Try first with the flag; and |
| * if that fails try again without the flag. See MSDN document or HotSpot |
| * source (os_win32.cpp) for details. |
| */ |
| HANDLE thread_handle = |
| (HANDLE)_beginthreadex(NULL, |
| (unsigned)stack_size, |
| continuation, |
| args, |
| STACK_SIZE_PARAM_IS_A_RESERVATION, |
| &thread_id); |
| if (thread_handle == NULL) { |
| thread_handle = |
| (HANDLE)_beginthreadex(NULL, |
| (unsigned)stack_size, |
| continuation, |
| args, |
| 0, |
| &thread_id); |
| } |
| if (thread_handle) { |
| WaitForSingleObject(thread_handle, INFINITE); |
| GetExitCodeThread(thread_handle, &rslt); |
| CloseHandle(thread_handle); |
| } else { |
| rslt = continuation(args); |
| } |
| return rslt; |
| } |
| |
| /* Linux only, empty on windows. */ |
| void SetJavaLauncherPlatformProps() {} |
| |
| void |
| InitLauncher(boolean javaw) |
| { |
| INITCOMMONCONTROLSEX icx; |
| |
| /* |
| * Required for javaw mode MessageBox output as well as for |
| * HotSpot -XX:+ShowMessageBoxOnError in java mode, an empty |
| * flag field is sufficient to perform the basic UI initialization. |
| */ |
| memset(&icx, 0, sizeof(INITCOMMONCONTROLSEX)); |
| icx.dwSize = sizeof(INITCOMMONCONTROLSEX); |
| InitCommonControlsEx(&icx); |
| _isjavaw = javaw; |
| JLI_SetTraceLauncher(); |
| } |
