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comparison compat/err.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
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-1:000000000000 0:a7e41e1a79c8
1 /*
2 * Copyright (C) 2011 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 <stdlib.h>
25 #include <stdio.h>
26 #include <string.h>
27 #include <errno.h>
28
29 #include "err.h"
30 #include "../compat.h"
31
32 void
33 err(int eval, const char *fmt, ...)
34 {
35 va_list args;
36
37 va_start(args, fmt);
38 vwarn(fmt, args);
39 va_end(args);
40
41 exit(eval);
42 }
43
44 void
45 errx(int eval, const char *fmt, ...)
46 {
47 va_list args;
48
49 va_start(args, fmt);
50 vwarnx(fmt, args);
51 va_end(args);
52
53 exit(eval);
54 }
55
56 void
57 warn(const char *fmt, ...)
58 {
59 va_list args;
60
61 va_start(args, fmt);
62 vwarn(fmt, args);
63 va_end(args);
64 }
65
66 void
67 warnx(const char *fmt, ...)
68 {
69 va_list args;
70
71 va_start(args, fmt);
72 vwarnx(fmt, args);
73 va_end(args);
74 }
75
76 void
77 verr(int eval, const char *fmt, va_list args)
78 {
79 vwarn(fmt, args);
80
81 exit(eval);
82 }
83
84 void
85 verrx(int eval, const char *fmt, va_list args)
86 {
87 vwarnx(fmt, args);
88
89 exit(eval);
90 }
91
92 void
93 vwarn(const char *fmt, va_list args)
94 {
95 int old_errno = errno;
96
97 fprintf(stderr, "%s: ", getprogname());
98 if (fmt != NULL) {
99 vfprintf(stderr, fmt, args);
100 fprintf(stderr, ": ");
101 }
102 fprintf(stderr, "%s\n", strerror(old_errno));
103 errno = old_errno;
104 }
105
106 void
107 vwarnx(const char *fmt, va_list args)
108 {
109 fprintf(stderr, "%s: ", getprogname());
110 if (fmt != NULL) {
111 vfprintf(stderr, fmt, args);
112 }
113 fputc('\n', stderr);
114 }