1/*	$NetBSD: ealloc.c,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $	*/
2
3/*-
4 * SPDX-License-Identifier: BSD-4-Clause
5 *
6 * Copyright (c) 1988, 1989, 1990, 1993
7 *	The Regents of the University of California.  All rights reserved.
8 * Copyright (c) 1989 by Berkeley Softworks
9 * All rights reserved.
10 *
11 * This code is derived from software contributed to Berkeley by
12 * Adam de Boor.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 *    notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 *    notice, this list of conditions and the following disclaimer in the
21 *    documentation and/or other materials provided with the distribution.
22 * 3. All advertising materials mentioning features or use of this software
23 *    must display the following acknowledgement:
24 *	This product includes software developed by the University of
25 *	California, Berkeley and its contributors.
26 * 4. Neither the name of the University nor the names of its contributors
27 *    may be used to endorse or promote products derived from this software
28 *    without specific prior written permission.
29 *
30 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
31 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
34 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 * SUCH DAMAGE.
41 */
42
43#include <sys/cdefs.h>
44#ifndef lint
45__RCSID("$NetBSD: ealloc.c,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $");
46#endif /* not lint */
47
48#include <stdio.h>
49#include <stdlib.h>
50#include <string.h>
51#include <err.h>
52
53#include "ealloc.h"
54
55static void enomem(void);
56
57/*
58 * enomem --
59 *	die when out of memory.
60 */
61static void
62enomem(void)
63{
64	errx(2, "Cannot allocate memory.");
65}
66
67/*
68 * emalloc --
69 *	malloc, but die on error.
70 */
71void *
72emalloc(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(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(void *ptr, size_t size)
101{
102	if ((ptr = realloc(ptr, size)) == NULL)
103		enomem();
104	return(ptr);
105}
106
107/*
108 * ecalloc --
109 *	calloc, but die on error.
110 */
111void *
112ecalloc(size_t nmemb, size_t size)
113{
114	void	*ptr;
115
116	if ((ptr = calloc(nmemb, size)) == NULL)
117		enomem();
118	return(ptr);
119}
120