/*

 * Copyright 2005-2006 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 <stdio.h>

#include <string.h>

#include <jni.h>

#include "jli_util.h"

/*

 * Returns a pointer to a block of at least 'size' bytes of memory.

 * Prints error message and exits if the memory could not be allocated.

 */

void *

JLI_MemAlloc(size_t size)

{

    void *p = malloc(size);

    if (p == 0) {

        perror("malloc");

        exit(1);

    }

    return p;

}

/*

 * Equivalent to realloc(size).

 * Prints error message and exits if the memory could not be reallocated.

 */

void *

JLI_MemRealloc(void *ptr, size_t size)

{

    void *p = realloc(ptr, size);

    if (p == 0) {

        perror("realloc");

        exit(1);

    }

    return p;

}

/*

 * Wrapper over strdup(3C) which prints an error message and exits if memory

 * could not be allocated.

 */

char *

JLI_StringDup(const char *s1)

{

    char *s = strdup(s1);

    if (s == NULL) {

        perror("strdup");

        exit(1);

    }

    return s;

}

/*

 * Very equivalent to free(ptr).

 * Here to maintain pairing with the above routines.

 */

void

JLI_MemFree(void *ptr)

{

    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));

}