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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2000-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
/*
* @(#)util.c 1.17 07/19/07
*/
#include
#include
#include
#include
#include
#include
#include "mqapp.h"
#include "registry.h"
int SourceFile(const char *file);
int myisspace(const char c);
int mymkdir(const char *path);
#define IMQ_JAVAHOME "IMQ_JAVAHOME"
#define JAVA_HOME "JAVA_HOME"
#define IMQ_DEFAULT_JAVAHOME "IMQ_DEFAULT_JAVAHOME"
#define IMQ_DEFAULT_VARHOME "IMQ_DEFAULT_VARHOME"
#define IMQ_DEFAULT_EXT_JARS "IMQ_DEFAULT_EXT_JARS"
#define IMQENV1 "\\etc\\imqenv.conf"
#define IMQENV2 "\\..\\etc\\mq\\imqenv.conf"
#define SET "set "
#define REM "REM "
#define POUND "#"
#define JDK_JRE_START "SOFTWARE\\JavaSoft\\Java Runtime Environment"
#define JDK_CURVER "CurrentVersion"
#define JDK_HOME_STR "JavaHome"
#define SKIP_WHITE(p) while (myisspace(*p)) p++
/*
* VMs to use for JNI java clients. Order is most desireable to
* least desireable.
* Relative paths are assumed to be relative to jrehome/bin
*/
char *client_vm_libs[] = {
"client\\jvm.dll",
"server\\jvm.dll",
"classic\\jvm.dll",
"hotspot\\jvm.dll"
};
int nclient_vm_libs = sizeof (client_vm_libs) / sizeof(char *);
/**
* Find a suitable Java runtime. Here is where we look.
*
* 1. IMQ_JAVAHOME
* 2. What's set for IMQ_JAVAHOME in %IMQ_HOME%\var\jdk-env.bat
* 3. IMQ_DEFAULT_JAVAHOME (may be set via imqenv.conf)
* 4. %IMQ_HOME%\jre (bundled)
*
* home Value of IMQ_HOME
* varhome Value of IMQ_VARHOME
* path Memory location to copy path to runtime into. It must be
* at least size MAX_PATH. If it is a JDK then the path
* will point to the "jre" directory.
*
* returns 0 if we find a runtime, else < 0
*/
int FindJavaRuntime(const char *home, const char *varhome, char *path) {
char tmpbuf[MAX_PATH];
char pathbuf[MAX_PATH];
char regbuf[MAX_PATH];
char versionbuf[256];
int vn = 256;
int tb = MAX_PATH;
char *p = NULL;
HANDLE hfile = 0;
*path = '\0';
regbuf[0] = '\0';
memset(tmpbuf, '\0', sizeof(tmpbuf));
memset(pathbuf, '\0', sizeof(pathbuf));
memset(versionbuf, '\0', sizeof(versionbuf));
if ((p = getenv(IMQ_JAVAHOME)) == NULL) {
/* IMQ_JAVAHOME not set. Try and get it from jdk-env.bat file */
strcpy(tmpbuf, varhome);
strcat(tmpbuf, "\\jdk-env.bat");
if (_access(tmpbuf, 00) == 0) {
/* This should set IMQ_JAVAHOME */
SourceFile(tmpbuf);
p = getenv(IMQ_JAVAHOME);
}
}
if (p == NULL) {
/* Still no IMQ_JAVAHOME. Check for IMQ_DEFAULT_JAVAHOME */
p = getenv(IMQ_DEFAULT_JAVAHOME);
}
if (p == NULL) {
/* Still no IMQ_JAVAHOME. Look for bundled */
strcpy(tmpbuf, home);
strcat(tmpbuf, "\\jre");
if (_access(tmpbuf, 00) == 0) {
p = tmpbuf;
}
}
if (p == NULL) {
// Still no IMQ_JAVAHOME. Look for JAVA_HOME variable
p = getenv("JAVA_HOME");
}
if (p == NULL) {
/* Still no JAVA_HOME, search the registry */
/* Get the version from JDK_JRE_START */
versionbuf[0]='\0';
getAnyStringFromRegistry(JDK_JRE_START, versionbuf,&vn,JDK_CURVER);
/* Get the jdk from JDK_START + version + JDK_HOME_STR */
regbuf[0]= '\0';
strcpy(regbuf, JDK_JRE_START);
strcat(regbuf, "\\");
strcat(regbuf, versionbuf);
tmpbuf[0] = '\0';
getAnyStringFromRegistry(regbuf, tmpbuf, &tb, JDK_HOME_STR);
if (tmpbuf[0] != '\0' ) {
//OK - make sure the registry isn't messages up
if (_access(tmpbuf, 00) == 0) {
p = tmpbuf;
}
}
}
if (p == NULL) {
/* Still no JAVA_HOME, fallback to the path ?? */
return 0;
}
if (_access(p, 00) == 0) {
/*
* Valid IMQ_JAVAHOME. either it is pointing to a JDK or a JRE.
* We always return a path to the JRE directory.
*/
strcpy(pathbuf, p);
strcat(pathbuf, "\\jre");
if (_access(pathbuf, 00) == 0) {
/* IMQ_JAVAHOME was pointing to a JDK */
strcpy(path, pathbuf);
} else {
/* IMQ_JAVAHOME was pointing to a JRE */
strcpy(path, p);
}
/* printf("===== Found java runtime %s\n", path); */
return 0;
} else {
//Handle new logic
//First check the registry
//Then check for JAVA_HOME
//finally we don't know what to do
/* Return invalid path so we can give a good error message */
strcpy(path, p);
return -1;
}
}
/*
* Our version of isspace(). Why? Because I'm getting link errors
* on windows if I use isspace() and I don't have time to figure out
* why.
*/
int myisspace(const char c) {
return (c != '\0' && c <= ' ');
}
/*
* Parse path and mkdir each directory one at a time
* since _mkdir will only work on one path.
*/
int mymkdir(const char *path) {
char *onePath;
char buildPath[MAX_PATH];
char p[MAX_PATH];
/* printf("mymkdir path is %s\n", path); */
buildPath[0] = '\0';
p[0] = '\0';
// Make a copy of path so we don't modify.
strcpy(p, path);
onePath = strtok(p, "/\\");
while (onePath != NULL) {
/* printf("onePath is %s\n", onePath); */
strcat(buildPath, onePath);
strcat(buildPath, "\\");
/* printf("buildPath is %s\n", buildPath);*/
// If this is drive letter, then just try to access it.
if (strlen(buildPath) == 3 && buildPath[1] == ':') {
/* printf("this is a drive, try accessing it\n"); */
if (_access(onePath, 00) != 0) {
fprintf(stderr, "Cannot access drive %s from %s.\n", buildPath, path);
return -1;
}
} else {
/* printf("Try accessing buildPath %s\n", buildPath); */
// Try accessing buildPath.
// If cannot access it, then try to mkdir it.
if (_access(buildPath, 00) != 0) {
/* printf("couldn't access %s so try to mkdir it \n", buildPath); */
if (_mkdir(buildPath) != 0) {
fprintf(stderr, "Cannot create directory %s in path %s\n", buildPath, path);
return -1;
}
}
}
onePath = strtok(NULL, "/\\");
}
return 0;
}
/*
* Set environment variables based on "set" commands in a file.
* For example if the file contains
* set COLOR=blue
* set SIZE=large
* The COLOR and SIZE would be set in the current process' environment.
* All other lines in the file are ignored.
*/
int SourceFile(const char *file) {
char buf[MAX_PATH];
char env[MAX_PATH];
FILE *fp;
char *p;
char *start = NULL;
if ((fp = fopen(file, "r")) == NULL) {
sprintf(buf, "MQ service couldn't read configuration file %s", file);
perror(buf);
return -1;
}
memset(buf, '\0', sizeof(buf));
while (fgets(buf, sizeof(buf), fp) != NULL) {
p = buf;
*env = '\0';
/* Skip leading white space */
SKIP_WHITE(p);
if (strncmp(REM, p, strlen(REM)) == 0 ||
strncmp(POUND, p, strlen(POUND)) == 0) {
// Skip comments REM or #
;
} else if (strncmp(SET, p, strlen(SET)) == 0) {
/* Skip "set "*/
p += strlen(SET);
SKIP_WHITE(p);
/* Start of variable */
start = p;
/* Find end of varible */
while (!myisspace(*p) && *p != '=') {
p++;
}
if (*p == '\0') {
continue;
}
*p = '\0';
strcpy(env, start);
strcat(env, "=");
p++;
SKIP_WHITE(p);
if (*p == '=') {
p++;
SKIP_WHITE(p);
}
/* Get value */
start = p;
while (*p != '\0' && *p != '\n') {
p++;
}
*p = '\0';
strcat(env, start);
if (*env != '\0') {
/* printf("===== Setting %s\n", env); */
_putenv(_strdup(env));
}
} else if (strncmp(IMQ_DEFAULT_VARHOME, p, strlen(IMQ_DEFAULT_VARHOME)) == 0 ||
strncmp(IMQ_DEFAULT_JAVAHOME, p, strlen(IMQ_DEFAULT_JAVAHOME)) == 0 ||
strncmp(IMQ_DEFAULT_EXT_JARS, p, strlen(IMQ_DEFAULT_EXT_JARS)) == 0) {
start = p;
/* Find end of variable */
while (!myisspace(*p) && *p != '=') {
p++;
}
if (*p == '\0') {
continue;
}
*p = '\0';
strcpy(env, start);
strcat(env, "=");
p++;
SKIP_WHITE(p);
if (*p == '=') {
p++;
SKIP_WHITE(p);
}
/* Get value */
start = p;
while (*p != '\0' && *p != '\n') {
p++;
}
*p = '\0';
strcat(env, start);
if (*env != '\0') {
/* printf("===== Setting unix style %s\n", env); */
_putenv(_strdup(env));
}
}
}
fclose(fp);
return 0;
}
/**
* Add all the jar files in the $IMQ_VARHOME/lib/ext directory to classpath.
* These are user defined jar files needed for things like JDBC connectors.
*
* Note: External JARs can also be specified with IMQ_DEFAULT_EXT_JARS
* and may be set via imqenv.conf.
*/
VOID MqAppAddLibJars(const char *libhome, char *classpath) {
WIN32_FIND_DATA dir;
char lib[MAX_PATH];
HANDLE handle;
/* Added $IMQ_HOME/lib/ext directory */
strcat(classpath, ";");
strcat(classpath, libhome);
strcat(classpath, "\\ext");
sprintf(lib, "%s\\ext\\*", libhome);
/* Add jars if any */
handle = FindFirstFile(lib, &dir);
if (handle == INVALID_HANDLE_VALUE) {
return;
}
do {
int len = strlen(dir.cFileName);
if (len <= 4) {
/* not a .jar file */
} else if (strcmp(dir.cFileName + len - 4, ".jar") != 0 &&
strcmp(dir.cFileName + len - 4, ".zip") != 0) {
/* File doesn't end in .jar or .zip */
} else {
strcat(classpath, ";");
strcat(classpath, libhome);
strcat(classpath, "\\ext\\");
strcat(classpath, dir.cFileName);
}
} while (FindNextFile(handle, &dir));
}
/*
* Do only MQ related initialization - no java initialization. This basically locates IMQ
* and sets the relevant pieces of info in the MqEnv structure.
*
* The following fields in the MqEnv are updated.
* imqhome
* imqlibhome
* imqvarhome
* imqextjars
*
* All the fields above need to point to pre-allocated space.
*
* Params:
* me ptr to MqEnv structure, must not be NULL.
*/
int MqAppInitializeNoJava(MqEnv *me)
{
char *slash_loc;
char *p;
char tmpbuf[MAX_PATH];
int newfs = 0;
/* Determine IMQ_HOME */
GetModuleFileName(0, me->imqhome, sizeof(me->imqhome));
/* Take off file name and bin directory */
slash_loc = strrchr(me->imqhome, '\\');
*slash_loc = '\0';
slash_loc = strrchr(me->imqhome, '\\');
*slash_loc = '\0';
if (me->imqlibhome[0] == '\0') {
strcpy(me->imqlibhome, me->imqhome);
strcat(me->imqlibhome, "\\lib");
}
/* Source imqenv.conf file to set default values
* For example this may set IMQ_DEFAULT_JAVAHOME, IMQ_DEFAULT_VARHOME,
* and IMQ_DEFAULT_EXT_JARS
*/
/* First check the new filesystem layout location */
memset(tmpbuf, 0, MAX_PATH);
strncpy(tmpbuf, me->imqhome, MAX_PATH - strlen(IMQENV2) - 2 );
strcat(tmpbuf, IMQENV2);
if (_access(tmpbuf, 00) == 0) {
SourceFile(tmpbuf);
/* Note: this also means a different imqetchome */
strcpy(me->imqetchome, me->imqhome);
strcat(me->imqetchome, "\\..\\etc\\mq");
newfs = 1;
} else { /* use the original imqconf.env */
memset(tmpbuf, 0, MAX_PATH);
strncpy(tmpbuf, me->imqhome, MAX_PATH - strlen(IMQENV1) - 2 );
strcat(tmpbuf, IMQENV1);
if (_access(tmpbuf, 00) == 0) {
SourceFile(tmpbuf);
strcpy(me->imqetchome, me->imqhome);
strcat(me->imqetchome, "\\etc");
} else {
/*
printf("NO ENV.CONF : %s\n", me->imqhome);
*/
}
}
/* Determine imqvarhome. This can be set via an environment variable */
if (me->imqvarhome[0] == '\0') {
if ((p = getenv("IMQ_VARHOME")) == NULL) {
if ((p = getenv("IMQ_DEFAULT_VARHOME")) != NULL) {
/* IMQ_DEFAULT_VARHOME may be set by imqenv.conf */
strcpy(me->imqvarhome, p);
} else if (newfs == 1) {
strcpy(me->imqvarhome, me->imqhome);
strcat(me->imqvarhome, "\\..\\var\\mq");
} else {
strcpy(me->imqvarhome, me->imqhome);
strcat(me->imqvarhome, "\\var");
}
} else {
strcpy(me->imqvarhome, p);
}
}
/* Determine imqextjars. This can be set via an environment variable */
if (me->imqextjars[0] == '\0') {
if ((p = getenv("IMQ_DEFAULT_EXT_JARS")) != NULL) {
/* IMQ_DEFAULT_EXT_JARS may be set by imqenv.conf */
strcpy(me->imqextjars, p);
}
}
// Change working directory to imqhome/bin
memset(tmpbuf, 0, MAX_PATH);
if (me->imqhome[0] != '\0') {
strcpy(tmpbuf, me->imqhome);
strcat(tmpbuf, "\\bin");
if (0 != _chdir(tmpbuf)){
fprintf(stderr, "Unable to change working directory to %s", tmpbuf);
}
}
/*
printf("IMQ_HOME: %s\n", me->imqhome);
printf("IMQ_VARHOME: %s\n", me->imqvarhome);
printf("IMQ_ETCHOME: %s\n", me->imqetchome);
printf("IMQ_EXTJARS: %s\n", me->imqextjars);
*/
return 0;
}
/*
* Do some initialization. This basically locates IMQ, the JDK, determines
* the run classpath (for -cp later).
*
* The following fields in the MqEnv are updated.
* imqhome
* imqlibhome
* imqvarhome
* imqextjars
* jrehome
* classpath
*
* All the fields above need to point to pre-allocated space.
*
* Params:
* me ptr to MqEnv structure, must not be NULL.
* classpath_entries Array containing entries relative to IMQ_HOME/lib that
* need to be added to the run classpath. This must not
* be NULL.
* nclasspath_entries Number of classpath entries in classpath_entries.
* append_libjars Boolean flag - if true the jars/zips in IMQ_HOME/lib/ext
* will be appended to the run classpath.
* append_classpath Boolean flag - if true the value of CLASSPATH will
* be appended to the run classpath.
*/
int MqAppInitialize(MqEnv *me, char *classpath_entries[], int nclasspath_entries,
BOOL append_libjars, BOOL append_classpath)
{
char *p;
int n;
char tmpbuf[MAX_PATH];
/*
* Initialize the MQ related fields
*/
MqAppInitializeNoJava(me);
if (*(me->jrehome) == '\0') {
/* Locate a java runtime. */
FindJavaRuntime(me->imqhome, me->imqvarhome, me->jrehome);
}
/** LKS-XXX
* Removing for glassfish v3, we need to default to the path nothing is set.
* Note: the error message will not be as clean if it fails (will do post FF)
if (*(me->jrehome) == '\0') {
fprintf(stderr, "Please specify a Java runtime using the IMQ_JAVAHOME\nenvironment variable, or -javahome command line option\n");
return -1;
}
if (_access(me->jrehome, 00) < 0) {
fprintf(stderr, "Invalid Java Runtime '%s'", me->jrehome);
return -1;
}
End of REMOVE (LKS-XXX) *
*/
/* Initialize classpath */
*(me->classpath) = '\0';
for (n = 0; n < nclasspath_entries; n++) {
if (n != 0) strcat(me->classpath, ";");
if (*classpath_entries[n] != '\\') {
strcat(me->classpath, me->imqhome);
strcat(me->classpath, "\\lib\\");
}
strcat(me->classpath, classpath_entries[n]);
}
/*
* If IMQ_DEFAULT_EXT_JARS is set, append it to the value of 'classpath'
*/
if (me->imqextjars[0] != '\0') {
strcat(me->classpath, ";");
strcat(me->classpath, me->imqextjars);
}
if (append_libjars) {
MqAppAddLibJars(me->imqlibhome, me->classpath);
}
if (append_classpath) {
/*
* If CLASSPATH is set, append it to the value of 'classpath'
*/
if ((p = getenv("CLASSPATH")) != NULL) {
strcat(me->classpath, ";");
strcat(me->classpath, p);
}
}
// Change working directory to imqhome/bin
memset(tmpbuf, 0, MAX_PATH);
if (me->imqhome[0] != '\0') {
strcpy(tmpbuf, me->imqhome);
strcat(tmpbuf, "\\bin");
if (0 != _chdir(tmpbuf)){
fprintf(stderr, "Unable to change working directory to %s", tmpbuf);
}
}
/*
printf("IMQ_HOME: %s\n", me->imqhome);
printf("IMQ_VARHOME: %s\n", me->imqvarhome);
printf("IMQ_EXTJARS: %s\n", me->imqextjars);
printf("jrehome: %s\n", me->jrehome);
*/
return 0;
}
/*
* Parse generic application arguments, setting the relevant
* fields in the MqEnv structure.
*
* The following fields in the MqEnv are updated.
* jrehome
* application_argv
* application_argc
*
* The application_argv field needs to point to pre-allocated
* array of (char *) pointers.
*
* Params:
* me ptr to MqEnv structure, must not be NULL.
* argv argument vector
* argc number of elements in argv
*/
void MqAppParseArgs (MqEnv *me, char *argv[], int argc)
{
argv++; argc--;
while (argc > 0) {
if (strcmp(*argv, "-javahome") == 0) {
argv++; argc--;
if (argc > 0) {
strncpy(me->jrehome, *argv, sizeof(me->jrehome) - 32);
strcat(me->jrehome, "\\jre");
}
} else if (strcmp(*argv, "-jrehome") == 0) {
argv++; argc--;
if (argc > 0) {
strncpy(me->jrehome, *argv, sizeof(me->jrehome));
}
} else if (strcmp(*argv, "-varhome") == 0) {
argv++; argc--;
if (argc > 0) {
strncpy(me->imqvarhome, *argv, sizeof(me->imqvarhome));
}
} else {
/* We don't recognize the option, pass it on to application */
me->application_argv[me->application_argc] = _strdup(*argv);
me->application_argc++;
}
argv++; argc--;
}
}
/*
* Create the java command line based on information
* in the MqEnv structure.
*
* No fields in the MqEnv are updated.
*
* Params:
* me ptr to MqEnv structure, must not be NULL.
* set_varhome Boolean flag that indicates whether "-Dimq.varhome"
* should be appended to the command line or not.
* cmdLine buffer for storing command line. This
* points to pre allocated space.
*/
void MqAppCreateJavaCmdLine(MqEnv *me, BOOL set_varhome, char *cmdLine)
{
char javaCmd[512];
int jvm_argc = 0, i;
char *jvm_argv_buffer[128];
char **jvm_argv = &(jvm_argv_buffer[1]);
jvm_argv[jvm_argc] = malloc(sizeof(me->classpath) + 80);
sprintf(jvm_argv[jvm_argc], "-cp");
jvm_argc++;
jvm_argv[jvm_argc] = malloc(sizeof(me->classpath) + 80);
sprintf(jvm_argv[jvm_argc], "%s", me->classpath);
jvm_argc++;
jvm_argv[jvm_argc] = malloc(sizeof(me->imqhome) + 80);
sprintf(jvm_argv[jvm_argc], "-Dimq.home=%s", me->imqhome);
jvm_argc++;
if (set_varhome) {
jvm_argv[jvm_argc] = malloc(sizeof(me->imqvarhome) + 80);
sprintf(jvm_argv[jvm_argc], "-Dimq.varhome=%s", me->imqvarhome);
jvm_argc++;
}
if (me->imqetchome != '\0' ) { /* we've set etchome */
jvm_argv[jvm_argc] = malloc(sizeof(me->imqetchome) + 80);
sprintf(jvm_argv[jvm_argc], "-Dimq.etchome=%s", me->imqetchome);
jvm_argc++;
}
if (me->jrehome[0] == '\0') {
strcat(javaCmd, "\"java\"");
} else {
sprintf(javaCmd, "\"%s\\bin\\java\"", me->jrehome);
}
/* Copy Java command and command line arguments into command line */
strcpy(cmdLine, javaCmd);
for (i = 0; i < jvm_argc; i++) {
strcat(cmdLine, " ");
strcat(cmdLine, "\"");
strcat(cmdLine, jvm_argv[i]);
strcat(cmdLine, "\"");
}
/* Copy main class into command line */
strcat(cmdLine, " ");
strcat(cmdLine, me->main_class);
strcat(cmdLine, " ");
/* Copy main class arguments into command line */
for (i = 0; i < me->application_argc; i++) {
strcat(cmdLine, " ");
strcat(cmdLine, "\"");
strcat(cmdLine, me->application_argv[i]);
strcat(cmdLine, "\"");
}
}
/*
* Run the command, wait for it to exit,
* and return the exit code.
* A process is forked to run the command via
* CreateProcess()
*
* Params:
* cmdLine buffer for storing command line. This
* points to pre allocated space.
*/
DWORD MqAppRunCmd(char *cmdLine)
{
/* Information about the forked child process */
STARTUPINFO jsi;
PROCESS_INFORMATION jpi;
/* exit code */
DWORD exitCode = 0;
ZeroMemory(&jsi, sizeof(jsi));
jsi.cb = sizeof(jsi);
ZeroMemory(&jpi, sizeof(jpi));
/*
* Run a Java application and block until it exits.
*/
/* Execute the child process */
if ( !CreateProcess(
NULL, /* Use cmdLine */
cmdLine, /* Command line */
NULL, /* Prcess handle not inheritable. */
NULL, /* Thread handle not inheritable. */
TRUE, /* Set handle inheritance to TRUE. */
0, /* No creation flags, use parent's console. */
NULL, /* Use parent's environment block */
NULL, /* Use parent's current directory */
&jsi, /* Pointer to STARTUPINFO struct [in] */
&jpi /* Pointer to PROCESS_INFORMATION struct [out] */
)
) {
printf("Starting process failed. Could not execute %s", cmdLine);
}
/* Wait for child to exit */
WaitForSingleObject (jpi.hProcess, INFINITE);
/* Get exit code from child process */
if (!GetExitCodeProcess(jpi.hProcess, &exitCode)) {
fprintf(stderr, "Unable to get child's exit code.");
}
/* Close process and thread handles */
CloseHandle(jpi.hProcess);
CloseHandle(jpi.hThread);
return (exitCode);
}
/*
* Run the java command using the information in the
* MqEnv structure passed in.
* This function uses the VM invocation APIs in JNI.
*
* Params:
* me ptr to MqEnv structure, must not be NULL.
*/
DWORD MqAppJNIRunJavaCmd(MqEnv *me)
{
FARPROC MqApp_JNI_CreateJavaVM = NULL;
HINSTANCE hinstLib;
JNIEnv *env;
JavaVM *jvm;
JavaVMInitArgs vm_args;
JavaVMOption options[4];
jint res;
jclass cls;
jmethodID mid;
jstring jstr;
jobjectArray args;
DWORD exitCode = 0;
char dllpath[MAX_PATH];
char *main_class, *tmp;
int i;
/*
* Try to load the VM's in the client_vm_libs array.
* Stop at the first successful load.
*/
for (i = 0; i < nclient_vm_libs; i++)
{
/*
* Construct path to one jvm.dll in client_vm_libs array
*/
dllpath[0] = '\0';
strcpy(dllpath, me->jrehome);
strcat(dllpath, "\\bin\\");
strcat(dllpath, client_vm_libs[i]);
if ((hinstLib = LoadLibrary(dllpath)) == NULL) {
continue;
} else {
break;
}
}
/*
* If can't load any VM libs, print error msg and return.
*/
if (hinstLib == NULL)
{
/*
* Couldn't load a VM
*/
fprintf(stderr, "Couldn't load any of the following Java VMs from %s:\n",
me->jrehome);
for (i = 0; i < nclient_vm_libs; i++)
{
fprintf(stderr, "\t%s\n", client_vm_libs[i]);
}
return (1);
}
/*
* Get function ptr to JNI_CreateJavaVM()
*/
MqApp_JNI_CreateJavaVM = GetProcAddress(hinstLib, "JNI_CreateJavaVM");
if (NULL == MqApp_JNI_CreateJavaVM)
{
fprintf(stderr, "Failed to obtain func ptr to JNI_CreateJavaVM() !\n");
return (1);
}
/*
* Setup for creating VM.
*/
/*
* Construct VM args
*/
i = 0;
options[i].optionString = malloc(sizeof(me->classpath) + 80);
sprintf(options[i].optionString, "-Djava.class.path=%s", me->classpath);
i++;
options[i].optionString = malloc(sizeof(me->imqhome) + 80);
sprintf(options[i].optionString, "-Dimq.home=%s", me->imqhome);
i++;
vm_args.version = JNI_VERSION_1_4;
vm_args.options = options;
vm_args.nOptions = i;
vm_args.ignoreUnrecognized = JNI_TRUE;
res = (*MqApp_JNI_CreateJavaVM)(&jvm, (void **)&env, &vm_args);
if (res < 0) {
fprintf(stderr, "Can't create Java VM\n");
return (1);
}
/*
* Convert main_class string in MqEnv to class string
* with slashes instead of periods.
*/
main_class = _strdup(me->main_class);
tmp = main_class;
while ((tmp = strchr(tmp, '.')) != NULL) {
*tmp = '/';
}
/*
* Load main class.
*/
cls = (*env)->FindClass(env, main_class);
if (cls == NULL)
{
fprintf(stderr, "Failed to load class: %s\n", main_class);
return (1);
}
/*
* Get method ID for main method.
*/
mid = (*env)->GetStaticMethodID(env, cls, "main", "([Ljava/lang/String;)V");
if (mid == NULL)
{
fprintf(stderr, "Cannot find main method.\n");
return (1);
}
/*
* Construct main method (application) args.
*/
if (me->application_argc > 0) {
args = (*env)->NewObjectArray(env, me->application_argc,
(*env)->FindClass(env, "java/lang/String"), NULL);
if (args == NULL)
{
fprintf(stderr, "Failed to allocate args array.\n");
return (1);
}
for (i = 0; i < me->application_argc; i++) {
jstr = (*env)->NewStringUTF(env, me->application_argv[i]);
if (jstr == NULL)
{
fprintf(stderr,
"Failed to allocate arg: %s\n", me->application_argv[i]);
return (1);
}
(*env)->SetObjectArrayElement(env, args, i, jstr);
}
} else {
args = (*env)->NewObjectArray(env, 0,
(*env)->FindClass(env, "java/lang/String"), NULL);
}
/*
* Invoke main method.
*/
(*env)->CallStaticVoidMethod(env, cls, mid, args);
if ((*env)->ExceptionOccurred(env))
{
(*env)->ExceptionDescribe(env);
}
/*
* Cleanup:
* - Detach the current thread so that it appears to have exited when
* the application's main method exits.
* - Destroy VM.
*/
if ((*jvm)->DetachCurrentThread(jvm) != 0) {
fprintf(stderr, "Could not detach main thread.\n");
exitCode = 1;
}
(*jvm)->DestroyJavaVM(jvm);
return (exitCode);
}
/*
* Initialize MqEnv structure
*
* The following fields in the MqEnv are updated.
* imqhome
* imqlibhome
* imqvarhome
* imqextjars
* jrehome
* classpath
* application_argc
* main_class
*
* All the string fields above need to point to pre-allocated space.
*
* Params:
* me ptr to MqEnv structure, must not be NULL.
* main_class string containing main class of application
* e.g.
* "com.sun.messaging.jmq.admin.apps.console.AdminConsole"
*/
void MqAppInitMqEnv(MqEnv *me, char *main_class)
{
me->imqhome[0] = '\0';
me->imqlibhome[0] = '\0';
me->imqvarhome[0] = '\0';
me->imqextjars[0] = '\0';
me->jrehome[0] = '\0';
me->classpath[0] = '\0';
me->application_argc = 0;
me->main_class = main_class;
}
