1 /* $FreeBSD$ */
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
56 static void enomem(void);
57
58 /*
59 * enomem --
60 * die when out of memory.
61 */
62 static void
enomem(void)63 enomem(void)
64 {
65 errx(2, "Cannot allocate memory.");
66 }
67
68 /*
69 * emalloc --
70 * malloc, but die on error.
71 */
72 void *
emalloc(size_t len)73 emalloc(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 */
86 char *
estrdup(const char * str)87 estrdup(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 */
100 void *
erealloc(void * ptr,size_t size)101 erealloc(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 */
112 void *
ecalloc(size_t nmemb,size_t size)113 ecalloc(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