ealloc.c revision 173412 
1/*	$FreeBSD: head/sbin/rcorder/ealloc.c 173412 2007-11-07 10:53:41Z kevlo $	*/
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()
62{
63	errx(2, "Cannot allocate memory.");
64}
65
66/*
67 * emalloc --
68 *	malloc, but die on error.
69 */
70void *
71emalloc(len)
72	size_t len;
73{
74	void *p;
75
76	if ((p = malloc(len)) == NULL)
77		enomem();
78	return(p);
79}
80
81/*
82 * estrdup --
83 *	strdup, but die on error.
84 */
85char *
86estrdup(str)
87	const char *str;
88{
89	char *p;
90
91	if ((p = strdup(str)) == NULL)
92		enomem();
93	return(p);
94}
95
96/*
97 * erealloc --
98 *	realloc, but die on error.
99 */
100void *
101erealloc(ptr, size)
102	void *ptr;
103	size_t size;
104{
105	if ((ptr = realloc(ptr, size)) == NULL)
106		enomem();
107	return(ptr);
108}
109
110/*
111 * ecalloc --
112 *	calloc, but die on error.
113 */
114void *
115ecalloc(nmemb, size)
116	size_t nmemb;
117	size_t size;
118{
119	void	*ptr;
120
121	if ((ptr = calloc(nmemb, size)) == NULL)
122		enomem();
123	return(ptr);
124}
125