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
49static void *
50not_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
59void *
60xmalloc(size_t s)
61{
62
63	return not_null(malloc(s));
64}
65
66void *
67xcalloc(size_t n, size_t s)
68{
69
70	return not_null(calloc(n, s));
71}
72#endif
73
74void *
75xrealloc(void *p, size_t s)
76{
77
78	return not_null(realloc(p, s));
79}
80
81char *
82xstrdup(const char *s)
83{
84
85	return not_null(strdup(s));
86}
87
88#if IS_XLINT
89char *
90xasprintf(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