/* ==================================================================== 
 * The Kannel Software License, Version 1.0 
 * 
 * Copyright (c) 2001-2010 Kannel Group  
 * Copyright (c) 1998-2001 WapIT Ltd.   
 * All rights reserved. 
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met: 
 * 
 * 1. Redistributions of source code must retain the above copyright 
 *    notice, this list of conditions and the following disclaimer. 
 * 
 * 2. Redistributions in binary form must reproduce the above copyright 
 *    notice, this list of conditions and the following disclaimer in 
 *    the documentation and/or other materials provided with the 
 *    distribution. 
 * 
 * 3. The end-user documentation included with the redistribution, 
 *    if any, must include the following acknowledgment: 
 *       "This product includes software developed by the 
 *        Kannel Group (http://www.kannel.org/)." 
 *    Alternately, this acknowledgment may appear in the software itself, 
 *    if and wherever such third-party acknowledgments normally appear. 
 * 
 * 4. The names "Kannel" and "Kannel Group" must not be used to 
 *    endorse or promote products derived from this software without 
 *    prior written permission. For written permission, please  
 *    contact org@kannel.org. 
 * 
 * 5. Products derived from this software may not be called "Kannel", 
 *    nor may "Kannel" appear in their name, without prior written 
 *    permission of the Kannel Group. 
 * 
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 * DISCLAIMED.  IN NO EVENT SHALL THE KANNEL GROUP OR ITS CONTRIBUTORS 
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,  
 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT  
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR  
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,  
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE  
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,  
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 * ==================================================================== 
 * 
 * This software consists of voluntary contributions made by many 
 * individuals on behalf of the Kannel Group.  For more information on  
 * the Kannel Group, please see <http://www.kannel.org/>. 
 * 
 * Portions of this software are based upon software originally written at  
 * WapIT Ltd., Helsinki, Finland for the Kannel project.  
 */ 

/*
 * gwmem-native.h - memory managment wrapper functions, native flavor
 *
 * Lars Wirzenius
 */

#include <stdlib.h>
#include <errno.h>
#include <string.h>

#include "gwlib.h"

/* 
 * In this module, we must use the real versions so let's undefine the
 * accident protectors. 
 */
#undef malloc
#undef calloc
#undef realloc
#undef free

void *gw_native_noop(void *ptr) { return ptr; }

void *gw_native_malloc(size_t size)
{
    void *ptr;

    /* ANSI C89 says malloc(0) is implementation-defined.  Avoid it. */
    gw_assert(size > 0);

    ptr = malloc(size);
    if (ptr == NULL)
        panic(errno, "Memory allocation failed");

    return ptr;
}

void *gw_native_calloc(int nmemb, size_t size)
{
    void *ptr;

    /* ANSI C89 says malloc(0) is implementation-defined.  Avoid it. */
    gw_assert(size > 0);
    gw_assert(nmemb > 0);

    ptr = calloc(nmemb, size);
    if (ptr == NULL)
        panic(errno, "Memory allocation failed");

    return ptr;
}

void *gw_native_realloc(void *ptr, size_t size)
{
    void *new_ptr;

    gw_assert(size > 0);

    new_ptr = realloc(ptr, size);
    if (new_ptr == NULL)
        panic(errno, "Memory re-allocation failed");

    return new_ptr;
}


void gw_native_free(void *ptr)
{
    free(ptr);
}


char *gw_native_strdup(const char *str)
{
    char *copy;
    int size;

    gw_assert(str != NULL);
    size = strlen(str) + 1;

    copy = gw_native_malloc(size);
    memcpy(copy, str, size);
    return copy;
}
