ealloc.c revision 330897 
1/*	$FreeBSD: stable/11/sbin/rcorder/ealloc.c 330897 2018-03-14 03:19:51Z eadler $	*/
2/*	$NetBSD: ealloc.c,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $	*/
3
4/*-
5 * SPDX-License-Identifier: BSD-4-Clause
6 *
7 * Copyright (c) 1988, 1989, 1990, 1993
8 *	The Regents of the University of California.  All rights reserved.
9 * Copyright (c) 1989 by Berkeley Softworks
10 * All rights reserved.
11 *
12 * This code is derived from software contributed to Berkeley by
13 * Adam de Boor.
14 *
15 * Redistribution and use in source and binary forms, with or without
16 * modification, are permitted provided that the following conditions
17 * are met:
18 * 1. Redistributions of source code must retain the above copyright
19 *    notice, this list of conditions and the following disclaimer.
20 * 2. Redistributions in binary form must reproduce the above copyright
21 *    notice, this list of conditions and the following disclaimer in the
22 *    documentation and/or other materials provided with the distribution.
23 * 3. All advertising materials mentioning features or use of this software
24 *    must display the following acknowledgement:
25 *	This product includes software developed by the University of
26 *	California, Berkeley and its contributors.
27 * 4. Neither the name of the University nor the names of its contributors
28 *    may be used to endorse or promote products derived from this software
29 *    without specific prior written permission.
30 *
31 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
34 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
39 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
40 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 * SUCH DAMAGE.
42 */
43
44#include <sys/cdefs.h>
45#ifndef lint
46__RCSID("$NetBSD: ealloc.c,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $");
47#endif /* not lint */
48
49#include <stdio.h>
50#include <stdlib.h>
51#include <string.h>
52#include <err.h>
53
54#include "ealloc.h"
55
56static void enomem(void);
57
58/*
59 * enomem --
60 *	die when out of memory.
61 */
62static void
63enomem(void)
64{
65	errx(2, "Cannot allocate memory.");
66}
67
68/*
69 * emalloc --
70 *	malloc, but die on error.
71 */
72void *
73emalloc(size_t len)
74{
75	void *p;
76
77	if ((p = malloc(len)) == NULL)
78		enomem();
79	return(p);
80}
81
82/*
83 * estrdup --
84 *	strdup, but die on error.
85 */
86char *
87estrdup(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(void *ptr, size_t size)
102{
103	if ((ptr = realloc(ptr, size)) == NULL)
104		enomem();
105	return(ptr);
106}
107
108/*
109 * ecalloc --
110 *	calloc, but die on error.
111 */
112void *
113ecalloc(size_t nmemb, size_t size)
114{
115	void	*ptr;
116
117	if ((ptr = calloc(nmemb, size)) == NULL)
118		enomem();
119	return(ptr);
120}
121