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 <errno.h>
31 #include <stdarg.h>
32 #include <stdio.h>
33 #include <stdlib.h>
34 #include <string.h>
35 
36 void
37 vwarnx(const char *fmt, va_list ap)
38 {
39 	fprintf(stderr, "%s: ", getprogname());
40 	if (fmt != NULL)
41 		vfprintf(stderr, fmt, ap);
42 	fprintf(stderr, "\n");
43 }
44 
45 void
46 vwarnc(int code, const char *fmt, va_list ap)
47 {
48 	fprintf(stderr, "%s: ", getprogname());
49 	if (fmt != NULL) {
50 		vfprintf(stderr, fmt, ap);
51 		fprintf(stderr, ": ");
52 	}
53 	fprintf(stderr, "%s\n", strerror(code));
54 }
55 
56 void
57 vwarn(const char *fmt, va_list ap)
58 {
59 	int sverrno;
60 
61 	sverrno = errno;
62 	fprintf(stderr, "%s: ", getprogname());
63 	if (fmt != NULL) {
64 		vfprintf(stderr, fmt, ap);
65 		fprintf(stderr, ": ");
66 	}
67 	fprintf(stderr, "%s\n", strerror(sverrno));
68 }
69 
70 void
71 verrc(int eval, int code, const char *fmt, va_list ap)
72 {
73 	fprintf(stderr, "%s: ", getprogname());
74 	if (fmt != NULL) {
75 		vfprintf(stderr, fmt, ap);
76 		fprintf(stderr, ": ");
77 	}
78 	fprintf(stderr, "%s\n", strerror(code));
79 	exit(eval);
80 }
81 
82 void
83 verrx(int eval, const char *fmt, va_list ap)
84 {
85 	fprintf(stderr, "%s: ", getprogname());
86 	if (fmt != NULL)
87 		vfprintf(stderr, fmt, ap);
88 	fprintf(stderr, "\n");
89 	exit(eval);
90 }
91 
92 void
93 verr(int eval, const char *fmt, va_list ap)
94 {
95 	int sverrno;
96 
97 	sverrno = errno;
98 	fprintf(stderr, "%s: ", getprogname());
99 	if (fmt != NULL) {
100 		vfprintf(stderr, fmt, ap);
101 		fprintf(stderr, ": ");
102 	}
103 	fprintf(stderr, "%s\n", strerror(sverrno));
104 	exit(eval);
105 }
106 
107 void
108 err(int eval, const char *fmt, ...)
109 {
110 	va_list ap;
111 
112 	va_start(ap, fmt);
113 	verr(eval, fmt, ap);
114 	va_end(ap);
115 }
116 
117 void
118 errc(int eval, int code, const char *fmt, ...)
119 {
120 	va_list ap;
121 
122 	va_start(ap, fmt);
123 	verrc(eval, code, fmt, ap);
124 	va_end(ap);
125 }
126 
127 void
128 errx(int eval, const char *fmt, ...)
129 {
130 	va_list ap;
131 
132 	va_start(ap, fmt);
133 	verrx(eval, fmt, ap);
134 	va_end(ap);
135 }
136 
137 void
138 warn(const char *fmt, ...)
139 {
140 	va_list ap;
141 
142 	va_start(ap, fmt);
143 	vwarn(fmt, ap);
144 	va_end(ap);
145 }
146 
147 void
148 warnc(int code, const char *fmt, ...)
149 {
150 	va_list ap;
151 
152 	va_start(ap, fmt);
153 	vwarnc(code, fmt, ap);
154 	va_end(ap);
155 }
156 
157 void
158 warnx(const char *fmt, ...)
159 {
160 	va_list ap;
161 
162 	va_start(ap, fmt);
163 	vwarnx(fmt, ap);
164 	va_end(ap);
165 }