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