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comparison util.c @ 0:a7e41e1a79c8

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Initial revision
author Guido Berhoerster <guido+pwm@berhoerster.name>
date Thu, 19 Jan 2017 22:39:51 +0100
parents
children a07665727c19
comparison
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-1:000000000000 0:a7e41e1a79c8
1 /*
2 * Copyright (C) 2016 Guido Berhoerster <guido+pwm@berhoerster.name>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23
24 #include "compat.h"
25
26 #ifdef HAVE_ERR_H
27 #include <err.h>
28 #endif /* HAVE_ERR_H */
29 #include <stdio.h>
30 #include <string.h>
31
32 #include "util.h"
33
34 void *
35 xmalloc(size_t size)
36 {
37 void *ptr;
38
39 ptr = malloc(size);
40 if (ptr == NULL) {
41 err(1, "malloc");
42 }
43
44 return (ptr);
45 }
46
47 void *
48 xrealloc(void *ptr, size_t size)
49 {
50 ptr = realloc(ptr, size);
51 if (ptr == NULL) {
52 err(1, "realloc");
53 }
54
55 return (ptr);
56 }
57
58 char *
59 xstrdup(const char *str)
60 {
61 char *new;
62
63 new = strdup(str);
64 if (new == NULL) {
65 err(1, "strdup");
66 }
67
68 return (new);
69 }
70
71 char *
72 xasprintf(char **strp, const char *fmt, ...)
73 {
74 va_list args;
75
76 va_start(args, fmt);
77 if (vasprintf(strp, fmt, args) < 0) {
78 err(1, "vasprintf");
79 }
80 va_end(args);
81
82 return (*strp);
83 }