/*

 * Copyright (c) 2009-2016 Petri Lehtinen <petri@digip.org>

 * Copyright (c) 2011-2012 Basile Starynkevitch <basile@starynkevitch.net>

 *

 * Jansson is free software; you can redistribute it and/or modify it

 * under the terms of the MIT license. See LICENSE for details.

 */

#include <stdlib.h>

#include <string.h>

#include "jansson.h"

#include "jansson_private.h"

/* C89 allows these to be macros */

#undef malloc

#undef free

/* memory function pointers */

static json_malloc_t do_malloc = malloc;

static json_free_t do_free = free;

void *jsonp_malloc(size_t size) {

    if (!size)

        return NULL;

    return (*do_malloc)(size);

}

void jsonp_free(void *ptr) {

    if (!ptr)

        return;

    (*do_free)(ptr);

}

char *jsonp_strdup(const char *str) { return jsonp_strndup(str, strlen(str)); }

char *jsonp_strndup(const char *str, size_t len) {

    char *new_str;

    new_str = jsonp_malloc(len + 1);

    if (!new_str)

        return NULL;

    memcpy(new_str, str, len);

    new_str[len] = '\0';

    return new_str;

}

void json_set_alloc_funcs(json_malloc_t malloc_fn, json_free_t free_fn) {

    do_malloc = malloc_fn;

    do_free = free_fn;

}

void json_get_alloc_funcs(json_malloc_t *malloc_fn, json_free_t *free_fn) {

    if (malloc_fn)

        *malloc_fn = do_malloc;

    if (free_fn)

        *free_fn = do_free;

}