1/*	$FreeBSD$	*/
2/*	$NetBSD: ealloc.c,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $	*/
3
4/*
5 * Copyright (c) 1988, 1989, 1990, 1993
6 *	The Regents of the University of California.  All rights reserved.
7 * Copyright (c) 1989 by Berkeley Softworks
8 * All rights reserved.
9 *
10 * This code is derived from software contributed to Berkeley by
11 * Adam de Boor.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 *    notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 *    notice, this list of conditions and the following disclaimer in the
20 *    documentation and/or other materials provided with the distribution.
21 * 3. All advertising materials mentioning features or use of this software
22 *    must display the following acknowledgement:
23 *	This product includes software developed by the University of
24 *	California, Berkeley and its contributors.
25 * 4. Neither the name of the University nor the names of its contributors
26 *    may be used to endorse or promote products derived from this software
27 *    without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * SUCH DAMAGE.
40 */
41
42#include <sys/cdefs.h>
43#ifndef lint
44__RCSID("$NetBSD: ealloc.c,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $");
45#endif /* not lint */
46
47#include <stdio.h>
48#include <stdlib.h>
49#include <string.h>
50#include <err.h>
51
52#include "ealloc.h"
53
54static void enomem(void);
55
56/*
57 * enomem --
58 *	die when out of memory.
59 */
60static void
61enomem(void)
62{
63	errx(2, "Cannot allocate memory.");
64}
65
66/*
67 * emalloc --
68 *	malloc, but die on error.
69 */
70void *
71emalloc(size_t len)
72{
73	void *p;
74
75	if ((p = malloc(len)) == NULL)
76		enomem();
77	return(p);
78}
79
80/*
81 * estrdup --
82 *	strdup, but die on error.
83 */
84char *
85estrdup(const char *str)
86{
87	char *p;
88
89	if ((p = strdup(str)) == NULL)
90		enomem();
91	return(p);
92}
93
94/*
95 * erealloc --
96 *	realloc, but die on error.
97 */
98void *
99erealloc(void *ptr, size_t size)
100{
101	if ((ptr = realloc(ptr, size)) == NULL)
102		enomem();
103	return(ptr);
104}
105
106/*
107 * ecalloc --
108 *	calloc, but die on error.
109 */
110void *
111ecalloc(size_t nmemb, size_t size)
112{
113	void	*ptr;
114
115	if ((ptr = calloc(nmemb, size)) == NULL)
116		enomem();
117	return(ptr);
118}
119