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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 (c) 1988 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1999 by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/* memory allocation functions */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
extern char *argv0; /* command name (must be set in main function) */
char *stralloc(char *s);
void *mymalloc(size_t size);
void *mycalloc(size_t nelem, size_t size);
void *myrealloc(void *p, size_t size);
static void *alloctest(void *p);
/* allocate a string */
char *
stralloc(char *s)
{
return (strcpy(mymalloc(strlen(s) + 1), s));
}
/* version of malloc that only returns if successful */
void *
mymalloc(size_t size)
{
return (alloctest(malloc(size)));
}
/* version of calloc that only returns if successful */
void *
mycalloc(size_t nelem, size_t size)
{
return (alloctest(calloc(nelem, size)));
}
/* version of realloc that only returns if successful */
void *
myrealloc(void *p, size_t size)
{
return (alloctest(realloc(p, size)));
}
/* check for memory allocation failure */
static void *
alloctest(void *p)
{
if (p == NULL) {
(void) fprintf(stderr, "\n%s: out of storage\n", argv0);
exit(1);
}
return (p);
}
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