/* $OpenBSD: malloc-wrapper.c,v 1.2 2014/04/17 20:44:45 tedu Exp $ */
/*
 * Copyright (c) 2014 Bob Beck
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int
CRYPTO_set_mem_functions(void *(*m)(size_t), void *(*r)(void *, size_t),
    void (*f)(void *))
{
	return 0;
}

int
CRYPTO_set_mem_ex_functions(void *(*m)(size_t, const char *, int),
    void *(*r)(void *, size_t, const char *, int), void (*f)(void *))
{
	return 0;
}

int
CRYPTO_set_locked_mem_functions(void *(*m)(size_t), void (*f)(void *))
{
	return 0;
}

int
CRYPTO_set_locked_mem_ex_functions(void *(*m)(size_t, const char *, int),
    void (*f)(void *))
{
	return 0;
}

int
CRYPTO_set_mem_debug_functions(void (*m)(void *, int, const char *, int, int),
    void (*r)(void *, void *, int, const char *, int, int),
    void (*f)(void *, int), void (*so)(long), long (*go)(void))
{
	return 0;
}


void
CRYPTO_get_mem_functions(void *(**m)(size_t), void *(**r)(void *, size_t),
    void (**f)(void *))
{
	if (m != NULL)
		*m = malloc;
	if (r != NULL)
		*r = realloc;
	if (f != NULL)
		*f = free;
}

void
CRYPTO_get_mem_ex_functions(void *(**m)(size_t, const char *, int),
    void *(**r)(void *, size_t, const char *, int), void (**f)(void *))
{
	if (m != NULL)
		*m = NULL;
	if (r != NULL)
		*r = NULL;
	if (f != NULL)
		*f = free;
}

void
CRYPTO_get_locked_mem_functions(void *(**m)(size_t), void (**f)(void *))
{
	if (m != NULL)
		*m = malloc;
	if (f != NULL)
		*f = free;
}

void
CRYPTO_get_locked_mem_ex_functions(void *(**m)(size_t, const char *, int),
    void (**f)(void *))
{
	if (m != NULL)
		*m = NULL;
	if (f != NULL)
		*f = free;
}

void
CRYPTO_get_mem_debug_functions(void (**m)(void *, int, const char *, int, int),
    void (**r)(void *, void *, int, const char *, int, int),
    void (**f)(void *, int), void (**so)(long), long (**go)(void))
{
	if (m != NULL)
		*m = NULL;
	if (r != NULL)
		*r = NULL;
	if (f != NULL)
		*f = NULL;
	if (so != NULL)
		*so = NULL;
	if (go != NULL)
		*go = NULL;
}


void *
CRYPTO_malloc_locked(int num, const char *file, int line)
{
	if (num <= 0)
		return NULL;
	return malloc(num);
}

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

void *
CRYPTO_malloc(int num, const char *file, int line)
{
	if (num <= 0)
		return NULL;
	return malloc(num);
}

char *
CRYPTO_strdup(const char *str, const char *file, int line)
{
	return strdup(str);
}

void *
CRYPTO_realloc(void *ptr, int num, const char *file, int line)
{
	if (num <= 0)
		return NULL;

	return realloc(ptr, num);
}

void *
CRYPTO_realloc_clean(void *ptr, int old_len, int num, const char *file,
    int line)
{
	void *ret = NULL;

	if (num <= 0)
		return NULL;
	if (num < old_len)
		return NULL; /* original does not support shrinking */
	ret = malloc(num);
	if (ret && ptr && old_len > 0) {
		memcpy(ret, ptr, old_len);
		explicit_bzero(ptr, old_len);
		free(ptr);
	}
	return ret;
}

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

void *
CRYPTO_remalloc(void *a, int num, const char *file, int line)
{
	free(a);
	return malloc(num);
}

void
CRYPTO_set_mem_debug_options(long bits)
{
	return;
}

long
CRYPTO_get_mem_debug_options(void)
{
	return 0;
}
