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 #include <sys/cdefs.h>
31 #include <err.h>
32 #include <stdio.h>
33 #include <stdlib.h>
34 #include <stdarg.h>
35 #include <errno.h>
36
37 extern const char* __progname;
38
39 __noreturn void
err(int eval,const char * fmt,...)40 err(int eval, const char *fmt, ...)
41 {
42 va_list ap;
43
44 va_start(ap, fmt);
45 verr(eval, fmt, ap);
46 va_end(ap);
47 }
48
49 __noreturn void
errx(int eval,const char * fmt,...)50 errx(int eval, const char *fmt, ...)
51 {
52 va_list ap;
53
54 va_start(ap, fmt);
55 verrx(eval, fmt, ap);
56 va_end(ap);
57 }
58
59 __noreturn void
verr(int eval,const char * fmt,va_list ap)60 verr(int eval, const char *fmt, va_list ap)
61 {
62 int sverrno;
63
64 sverrno = errno;
65 (void)fprintf(stderr, "%s: ", __progname);
66 if (fmt != NULL) {
67 (void)vfprintf(stderr, fmt, ap);
68 (void)fprintf(stderr, ": ");
69 }
70 (void)fprintf(stderr, "%s\n", strerror(sverrno));
71 exit(eval);
72 }
73
74
75 __noreturn void
verrx(int eval,const char * fmt,va_list ap)76 verrx(int eval, const char *fmt, va_list ap)
77 {
78 (void)fprintf(stderr, "%s: ", __progname);
79 if (fmt != NULL)
80 (void)vfprintf(stderr, fmt, ap);
81 (void)fprintf(stderr, "\n");
82 exit(eval);
83 }
84
85 void
warn(const char * fmt,...)86 warn(const char *fmt, ...)
87 {
88 va_list ap;
89
90 va_start(ap, fmt);
91 vwarn(fmt, ap);
92 va_end(ap);
93 }
94
95 void
warnx(const char * fmt,...)96 warnx(const char *fmt, ...)
97 {
98 va_list ap;
99
100 va_start(ap, fmt);
101 vwarnx(fmt, ap);
102 va_end(ap);
103 }
104
105 void
vwarn(const char * fmt,va_list ap)106 vwarn(const char *fmt, va_list ap)
107 {
108 int sverrno;
109
110 sverrno = errno;
111 (void)fprintf(stderr, "%s: ", __progname);
112 if (fmt != NULL) {
113 (void)vfprintf(stderr, fmt, ap);
114 (void)fprintf(stderr, ": ");
115 }
116 (void)fprintf(stderr, "%s\n", strerror(sverrno));
117 }
118
119 void
vwarnx(const char * fmt,va_list ap)120 vwarnx(const char *fmt, va_list ap)
121 {
122 (void)fprintf(stderr, "%s: ", __progname);
123 if (fmt != NULL)
124 (void)vfprintf(stderr, fmt, ap);
125 (void)fprintf(stderr, "\n");
126 }
127