/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
#include "lint.h"
#include <stdlib.h>
#include <string.h>
#include <errno.h>
/*
* calloc - allocate and clear memory block
*/
void *
calloc(size_t num, size_t size)
{
void *mp;
size_t total;
if (num == 0 || size == 0)
total = 0;
else {
total = num * size;
/* check for overflow */
if (total / num != size) {
errno = ENOMEM;
return (0);
}
}
return ((mp = malloc(total)) ? memset(mp, 0, total) : mp);
}