1 /* $NetBSD: mem.c,v 1.25 2024/01/20 12:02:09 rillig 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 #if HAVE_NBTOOL_CONFIG_H
35 #include "nbtool_config.h"
36 #endif
37
38 #include <sys/cdefs.h>
39 #if defined(__RCSID)
40 __RCSID("$NetBSD: mem.c,v 1.25 2024/01/20 12:02:09 rillig Exp $");
41 #endif
42
43 #include <stdarg.h>
44 #include <stdlib.h>
45 #include <string.h>
46
47 #include "lint.h"
48
49 static void *
not_null(void * ptr)50 not_null(void *ptr)
51 {
52
53 if (ptr == NULL)
54 errx(1, "out of memory");
55 return ptr;
56 }
57
58 #if IS_LINT1 || IS_LINT2
59 void *
xmalloc(size_t s)60 xmalloc(size_t s)
61 {
62
63 return not_null(malloc(s));
64 }
65
66 void *
xcalloc(size_t n,size_t s)67 xcalloc(size_t n, size_t s)
68 {
69
70 return not_null(calloc(n, s));
71 }
72 #endif
73
74 void *
xrealloc(void * p,size_t s)75 xrealloc(void *p, size_t s)
76 {
77
78 return not_null(realloc(p, s));
79 }
80
81 char *
xstrdup(const char * s)82 xstrdup(const char *s)
83 {
84
85 return not_null(strdup(s));
86 }
87
88 #if IS_XLINT
89 char *
xasprintf(const char * fmt,...)90 xasprintf(const char *fmt, ...)
91 {
92 char *str;
93 int e;
94 va_list ap;
95
96 va_start(ap, fmt);
97 e = vasprintf(&str, fmt, ap);
98 va_end(ap);
99 if (e < 0)
100 (void)not_null(NULL);
101 return str;
102 }
103 #endif
104