1 /* $OpenBSD: util.c,v 1.5 2019/11/28 18:40:42 kn Exp $ */
2
3 /*
4 * Copyright (c) 2012 Mark Kettenis
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <err.h>
20 #include <stdarg.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24
25 #include "ldom_util.h"
26
27 int debug;
28
29 void *
xmalloc(size_t size)30 xmalloc(size_t size)
31 {
32 void *p;
33
34 p = malloc(size);
35 if (p == NULL)
36 err(1, NULL);
37 return p;
38 }
39
40 void *
xzalloc(size_t size)41 xzalloc(size_t size)
42 {
43 void *p;
44
45 p = xmalloc(size);
46 memset(p, 0, size);
47 return p;
48 }
49
50 void *
xreallocarray(void * o,size_t nmemb,size_t size)51 xreallocarray(void *o, size_t nmemb, size_t size)
52 {
53 void *p;
54
55 p = reallocarray(o, nmemb, size);
56 if (p == NULL)
57 err(1, NULL);
58 return p;
59 }
60
61 char *
xstrdup(const char * s)62 xstrdup(const char *s)
63 {
64 char *p;
65
66 p = strdup(s);
67 if (p == NULL)
68 err(1, NULL);
69 return p;
70 }
71
72 int
xasprintf(char ** str,const char * fmt,...)73 xasprintf(char **str, const char *fmt, ...)
74 {
75 va_list ap;
76 int ret;
77
78 va_start(ap, fmt);
79 ret = vasprintf(str, fmt, ap);
80 va_end(ap);
81 if (ret == -1)
82 err(1, NULL);
83 return ret;
84 }
85