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67358361 CW |
1 | /*- |
2 | * Copyright (c) 1993 | |
3 | * The Regents of the University of California. All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. Neither the name of the University nor the names of its contributors | |
14 | * may be used to endorse or promote products derived from this software | |
15 | * without specific prior written permission. | |
16 | * | |
17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
27 | * SUCH DAMAGE. | |
28 | */ | |
29 | ||
30 | /* 2001-12-04 Charles Wilson: modified license to the 'BSD no advert' | |
31 | * license, as required by the Director of the Office of | |
32 | * Technology Licensing of the University of California on | |
33 | * July 22, 1999. | |
34 | * See http://www.opensource.org/licenses/bsd-license.html | |
35 | */ | |
36 | #if HAVE_CONFIG_H | |
37 | # include "config.h" | |
38 | #endif | |
39 | #include "common.h" | |
40 | #include "errs.h" | |
41 | ||
42 | ||
43 | #ifdef HAVE_PROGNAME | |
44 | extern char *__progname; /* Program name, from crt0. */ | |
45 | #else | |
46 | char *__progname = "foo"; /* probably libc4 */ | |
47 | #endif | |
48 | ||
49 | /* Some compilers complain "null format string" upon err(1,NULL) */ | |
50 | /* Make them happy with a separate routine. */ | |
51 | void | |
52 | err_nomsg(int exitval) { | |
53 | (void)fprintf(stderr, "%s: %s\n", __progname, strerror(errno)); | |
54 | exit(exitval); | |
55 | } | |
56 | ||
57 | void | |
58 | err(int exitval, const char *fmt, ...) { | |
59 | va_list ap; | |
60 | va_start(ap, fmt); | |
61 | verr(exitval, fmt, ap); | |
62 | va_end(ap); | |
63 | } | |
64 | ||
65 | void | |
66 | verr(int exitval, const char *fmt, va_list ap) { | |
67 | int sverrno; | |
68 | ||
69 | sverrno = errno; | |
70 | (void)fprintf(stderr, "%s: ", __progname); | |
71 | if (fmt != NULL && *fmt != 0) { | |
72 | (void)vfprintf(stderr, fmt, ap); | |
73 | (void)fprintf(stderr, ": "); | |
74 | } | |
75 | (void)fprintf(stderr, "%s\n", strerror(sverrno)); | |
76 | exit(exitval); | |
77 | } | |
78 | ||
79 | void | |
80 | errx(int exitval, const char *fmt, ...) { | |
81 | va_list ap; | |
82 | va_start(ap, fmt); | |
83 | verrx(exitval, fmt, ap); | |
84 | va_end(ap); | |
85 | } | |
86 | ||
87 | void | |
88 | verrx(int exitval, const char *fmt, va_list ap) { | |
89 | (void)fprintf(stderr, "%s: ", __progname); | |
90 | if (fmt != NULL) | |
91 | (void)vfprintf(stderr, fmt, ap); | |
92 | (void)fprintf(stderr, "\n"); | |
93 | exit(exitval); | |
94 | } | |
95 | ||
96 | void | |
97 | warn(const char *fmt, ...) { | |
98 | va_list ap; | |
99 | va_start(ap, fmt); | |
100 | vwarn(fmt, ap); | |
101 | va_end(ap); | |
102 | } | |
103 | ||
104 | void | |
105 | vwarn(const char *fmt, va_list ap) { | |
106 | int sverrno; | |
107 | ||
108 | sverrno = errno; | |
109 | (void)fprintf(stderr, "%s: ", __progname); | |
110 | if (fmt != NULL) { | |
111 | (void)vfprintf(stderr, fmt, ap); | |
112 | (void)fprintf(stderr, ": "); | |
113 | } | |
114 | (void)fprintf(stderr, "%s\n", strerror(sverrno)); | |
115 | } | |
116 | ||
117 | void | |
118 | warnx(const char *fmt, ...) { | |
119 | va_list ap; | |
120 | va_start(ap, fmt); | |
121 | vwarnx(fmt, ap); | |
122 | va_end(ap); | |
123 | } | |
124 | ||
125 | void | |
126 | vwarnx(const char *fmt, va_list ap) { | |
127 | (void)fprintf(stderr, "%s: ", __progname); | |
128 | if (fmt != NULL) | |
129 | (void)vfprintf(stderr, fmt, ap); | |
130 | (void)fprintf(stderr, "\n"); | |
131 | } |