ealloc.c revision 78344 
1/*	$NetBSD: ealloc.c,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $	*/
2
3/*
4 * Copyright (c) 1988, 1989, 1990, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 * Copyright (c) 1989 by Berkeley Softworks
7 * All rights reserved.
8 *
9 * This code is derived from software contributed to Berkeley by
10 * Adam de Boor.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 *    must display the following acknowledgement:
22 *	This product includes software developed by the University of
23 *	California, Berkeley and its contributors.
24 * 4. Neither the name of the University nor the names of its contributors
25 *    may be used to endorse or promote products derived from this software
26 *    without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 */
40
41#include <sys/cdefs.h>
42#ifndef lint
43__RCSID("$NetBSD: ealloc.c,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $");
44#endif /* not lint */
45
46#include <stdio.h>
47#include <stdlib.h>
48#include <string.h>
49#include <err.h>
50
51#include "ealloc.h"
52
53static void enomem __P((void));
54
55/*
56 * enomem --
57 *	die when out of memory.
58 */
59static void
60enomem()
61{
62	errx(2, "Cannot allocate memory.");
63}
64
65/*
66 * emalloc --
67 *	malloc, but die on error.
68 */
69void *
70emalloc(len)
71	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(str)
86	const char *str;
87{
88	char *p;
89
90	if ((p = strdup(str)) == NULL)
91		enomem();
92	return(p);
93}
94
95/*
96 * erealloc --
97 *	realloc, but die on error.
98 */
99void *
100erealloc(ptr, size)
101	void *ptr;
102	size_t size;
103{
104	if ((ptr = realloc(ptr, size)) == NULL)
105		enomem();
106	return(ptr);
107}
108
109/*
110 * ecalloc --
111 *	calloc, but die on error.
112 */
113void *
114ecalloc(nmemb, size)
115	size_t nmemb;
116	size_t size;
117{
118	void	*ptr;
119
120	if ((ptr = calloc(nmemb, size)) == NULL)
121		enomem();
122	return(ptr);
123}
124