1 /* $NetBSD: mem.c,v 1.4 2003/10/16 06:35:26 itojun Exp $ */
2
3 /*
4 * Copyright (c) 1994, 1995 Jochen Pohl
5 * All Rights Reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Jochen Pohl for
18 * The NetBSD Project.
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <sys/cdefs.h>
35 #if defined(__RCSID) && !defined(lint)
36 __RCSID("$NetBSD: mem.c,v 1.4 2003/10/16 06:35:26 itojun Exp $");
37 #endif
38 __FBSDID("$FreeBSD$");
39
40 #include <stdlib.h>
41 #include <string.h>
42
43 #include "lint.h"
44
45 void *
xmalloc(size_t s)46 xmalloc(size_t s)
47 {
48 void *p;
49
50 if ((p = malloc(s)) == NULL)
51 nomem();
52 return (p);
53 }
54
55 void *
xcalloc(size_t n,size_t s)56 xcalloc(size_t n, size_t s)
57 {
58 void *p;
59
60 if ((p = calloc(n, s)) == NULL)
61 nomem();
62 return (p);
63 }
64
65 void *
xrealloc(void * p,size_t s)66 xrealloc(void *p, size_t s)
67 {
68 void *n;
69
70 if ((n = realloc(p, s)) == NULL) {
71 free(p);
72 nomem();
73 }
74 p = n;
75 return (p);
76 }
77
78 char *
xstrdup(const char * s)79 xstrdup(const char *s)
80 {
81 char *s2;
82
83 if ((s2 = strdup(s)) == NULL)
84 nomem();
85 return (s2);
86 }
87
88 void
nomem(void)89 nomem(void)
90 {
91
92 errx(1, "virtual memory exhausted");
93 }
94