jli_util.c revision 2362
0N/A/*
2362N/A * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
0N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
2362N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
2362N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
0N/A * or visit www.oracle.com if you need additional information or have any
0N/A * questions.
4638N/A */
0N/A
0N/A#include <stdio.h>
4638N/A#include <string.h>
0N/A#include <jni.h>
0N/A
0N/A#include "jli_util.h"
0N/A
0N/A/*
0N/A * Returns a pointer to a block of at least 'size' bytes of memory.
0N/A * Prints error message and exits if the memory could not be allocated.
0N/A */
0N/Avoid *
0N/AJLI_MemAlloc(size_t size)
0N/A{
0N/A void *p = malloc(size);
0N/A if (p == 0) {
0N/A perror("malloc");
0N/A exit(1);
0N/A }
0N/A return p;
0N/A}
0N/A
0N/A/*
0N/A * Equivalent to realloc(size).
0N/A * Prints error message and exits if the memory could not be reallocated.
0N/A */
0N/Avoid *
0N/AJLI_MemRealloc(void *ptr, size_t size)
0N/A{
0N/A void *p = realloc(ptr, size);
0N/A if (p == 0) {
0N/A perror("realloc");
0N/A exit(1);
0N/A }
0N/A return p;
0N/A}
0N/A
0N/A/*
0N/A * Wrapper over strdup(3C) which prints an error message and exits if memory
4638N/A * could not be allocated.
0N/A */
0N/Achar *
0N/AJLI_StringDup(const char *s1)
0N/A{
0N/A char *s = strdup(s1);
0N/A if (s == NULL) {
0N/A perror("strdup");
0N/A exit(1);
0N/A }
0N/A return s;
0N/A}
0N/A
0N/A/*
0N/A * Very equivalent to free(ptr).
0N/A * Here to maintain pairing with the above routines.
0N/A */
4638N/Avoid
0N/AJLI_MemFree(void *ptr)
0N/A{
free(ptr);
}
/*
* Makes a copy of arguments
*/
char**
JLI_CopyArgs(int argc, const char **iargv)
{
int i;
char** oargv = (char**)JLI_MemAlloc(sizeof(char*)*(argc+1));
for (i = 0 ; i < argc+1 ; i++) {
oargv[i] = (iargv[i] == NULL) ? NULL : JLI_StringDup(iargv[i]);
if (iargv[i] != NULL && JLI_IsTraceLauncher() == JNI_TRUE) {
printf("\targv[%d] = '%s'\n",i,iargv[i]);
}
}
return oargv;
}
/*
* debug helpers we use
*/
static jboolean _launcher_debug = JNI_FALSE;
void
JLI_TraceLauncher(const char* fmt, ...)
{
va_list vl;
if (_launcher_debug != JNI_TRUE) return;
va_start(vl, fmt);
vprintf(fmt,vl);
va_end(vl);
}
void
JLI_SetTraceLauncher()
{
if (getenv("_JAVA_LAUNCHER_DEBUG") != 0) {
_launcher_debug = JNI_TRUE;
JLI_TraceLauncher("----_JAVA_LAUNCHER_DEBUG----\n");
}
}
jboolean
JLI_IsTraceLauncher()
{
return _launcher_debug;
}
int
JLI_StrCCmp(const char *s1, const char* s2)
{
return JLI_StrNCmp(s1, s2, JLI_StrLen(s2));
}