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1227625a SP |
1 | /* |
2 | * Ported to Linux's Second Extended File System as part of the | |
3 | * dump and restore backup suit | |
b45f51d6 SP |
4 | * Remy Card <card@Linux.EU.Org>, 1994-1997 |
5 | * Stelian Pop <pop@cybercable.fr>, 1999 | |
1227625a SP |
6 | * |
7 | */ | |
8 | ||
9 | /*- | |
10 | * Copyright (c) 1993 | |
11 | * The Regents of the University of California. All rights reserved. | |
12 | * | |
13 | * Redistribution and use in source and binary forms, with or without | |
14 | * modification, are permitted provided that the following conditions | |
15 | * are met: | |
16 | * 1. Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * 2. Redistributions in binary form must reproduce the above copyright | |
19 | * notice, this list of conditions and the following disclaimer in the | |
20 | * documentation and/or other materials provided with the distribution. | |
21 | * 3. All advertising materials mentioning features or use of this software | |
22 | * must display the following acknowledgement: | |
23 | * This product includes software developed by the University of | |
24 | * California, Berkeley and its contributors. | |
25 | * 4. Neither the name of the University nor the names of its contributors | |
26 | * may be used to endorse or promote products derived from this software | |
27 | * without specific prior written permission. | |
28 | * | |
29 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
30 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
31 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
32 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
33 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
34 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
35 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
36 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
37 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
38 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
39 | * SUCH DAMAGE. | |
b45f51d6 | 40 | * From: @(#)err.c 8.1 (Berkeley) 6/4/93 |
1227625a SP |
41 | */ |
42 | ||
b45f51d6 SP |
43 | #if defined(LIBC_RCS) && !defined(lint) |
44 | static const char rcsid[] = | |
45 | "$Id: err.c,v 1.2 1999/10/11 12:53:21 stelian Exp $"; | |
46 | #endif /* LIBC_RCS and not lint */ | |
1227625a SP |
47 | |
48 | #include <err.h> | |
49 | #include <errno.h> | |
50 | #include <stdio.h> | |
51 | #include <stdlib.h> | |
52 | #include <string.h> | |
53 | ||
1227625a | 54 | #include <stdarg.h> |
1227625a SP |
55 | |
56 | #include <config.h> | |
57 | ||
58 | extern char *__progname; /* Program name, from crt0. */ | |
59 | ||
b45f51d6 SP |
60 | static FILE *err_file; /* file to use for error output */ |
61 | static void (*err_exit)(int); | |
62 | ||
63 | /* | |
64 | * This is declared to take a `void *' so that the caller is not required | |
65 | * to include <stdio.h> first. However, it is really a `FILE *', and the | |
66 | * manual page documents it as such. | |
67 | */ | |
68 | void | |
69 | err_set_file(void *fp) | |
70 | { | |
71 | if (fp) | |
72 | err_file = fp; | |
73 | else | |
74 | err_file = stderr; | |
75 | } | |
76 | ||
77 | void | |
78 | err_set_exit(void (*ef)(int)) | |
79 | { | |
80 | err_exit = ef; | |
81 | } | |
82 | ||
83 | ||
1227625a SP |
84 | #ifndef HAVE_ERR |
85 | __dead void | |
1227625a | 86 | err(int eval, const char *fmt, ...) |
1227625a SP |
87 | { |
88 | va_list ap; | |
1227625a | 89 | va_start(ap, fmt); |
b45f51d6 | 90 | verrc(eval, errno, fmt, ap); |
1227625a SP |
91 | va_end(ap); |
92 | } | |
93 | #endif | |
94 | ||
95 | #ifndef HAVE_VERR | |
96 | __dead void | |
97 | verr(eval, fmt, ap) | |
98 | int eval; | |
99 | const char *fmt; | |
100 | va_list ap; | |
101 | { | |
b45f51d6 SP |
102 | verrc(eval, errno, fmt, ap); |
103 | } | |
104 | #endif | |
105 | ||
106 | #ifndef HAVE_ERRC | |
107 | __dead void | |
108 | errc(int eval, int code, const char *fmt, ...) | |
109 | { | |
110 | va_list ap; | |
111 | va_start(ap, fmt); | |
112 | verrc(eval, code, fmt, ap); | |
113 | va_end(ap); | |
114 | } | |
115 | #endif | |
1227625a | 116 | |
b45f51d6 SP |
117 | #ifndef HAVE_VERRC |
118 | __dead void | |
119 | verrc(eval, code, fmt, ap) | |
120 | int eval; | |
121 | int code; | |
122 | const char *fmt; | |
123 | va_list ap; | |
124 | { | |
125 | if (err_file == 0) | |
126 | err_set_file((FILE *)0); | |
127 | fprintf(err_file, "%s: ", __progname); | |
1227625a | 128 | if (fmt != NULL) { |
b45f51d6 SP |
129 | vfprintf(err_file, fmt, ap); |
130 | fprintf(err_file, ": "); | |
1227625a | 131 | } |
b45f51d6 SP |
132 | fprintf(err_file, "%s\n", strerror(code)); |
133 | if (err_exit) | |
134 | err_exit(eval); | |
1227625a SP |
135 | exit(eval); |
136 | } | |
137 | #endif | |
138 | ||
139 | #ifndef HAVE_ERRX | |
140 | __dead void | |
1227625a | 141 | errx(int eval, const char *fmt, ...) |
1227625a SP |
142 | { |
143 | va_list ap; | |
1227625a | 144 | va_start(ap, fmt); |
1227625a SP |
145 | verrx(eval, fmt, ap); |
146 | va_end(ap); | |
147 | } | |
148 | #endif | |
149 | ||
150 | #ifndef HAVE_VERRX | |
151 | __dead void | |
152 | verrx(eval, fmt, ap) | |
153 | int eval; | |
154 | const char *fmt; | |
155 | va_list ap; | |
156 | { | |
b45f51d6 SP |
157 | if (err_file == 0) |
158 | err_set_file((FILE *)0); | |
159 | fprintf(err_file, "%s: ", __progname); | |
1227625a | 160 | if (fmt != NULL) |
b45f51d6 SP |
161 | vfprintf(err_file, fmt, ap); |
162 | fprintf(err_file, "\n"); | |
163 | if (err_exit) | |
164 | err_exit(eval); | |
1227625a SP |
165 | exit(eval); |
166 | } | |
167 | #endif | |
168 | ||
169 | #ifndef HAVE_WARN | |
170 | void | |
1227625a | 171 | warn(const char *fmt, ...) |
1227625a SP |
172 | { |
173 | va_list ap; | |
1227625a | 174 | va_start(ap, fmt); |
b45f51d6 | 175 | vwarnc(errno, fmt, ap); |
1227625a SP |
176 | va_end(ap); |
177 | } | |
178 | #endif | |
179 | ||
180 | #ifndef HAVE_VWARN | |
181 | void | |
182 | vwarn(fmt, ap) | |
183 | const char *fmt; | |
184 | va_list ap; | |
185 | { | |
b45f51d6 SP |
186 | vwarnc(errno, fmt, ap); |
187 | } | |
188 | #endif | |
189 | ||
190 | #ifndef HAVE_WARNC | |
191 | void | |
192 | warnc(int code, const char *fmt, ...) | |
193 | { | |
194 | va_list ap; | |
195 | va_start(ap, fmt); | |
196 | vwarnc(code, fmt, ap); | |
197 | va_end(ap); | |
198 | } | |
199 | #endif | |
1227625a | 200 | |
b45f51d6 SP |
201 | #ifndef HAVE_VWARNC |
202 | void | |
203 | vwarnc(code, fmt, ap) | |
204 | int code; | |
205 | const char *fmt; | |
206 | va_list ap; | |
207 | { | |
208 | if (err_file == 0) | |
209 | err_set_file((FILE *)0); | |
210 | fprintf(err_file, "%s: ", __progname); | |
1227625a | 211 | if (fmt != NULL) { |
b45f51d6 SP |
212 | vfprintf(err_file, fmt, ap); |
213 | fprintf(err_file, ": "); | |
1227625a | 214 | } |
b45f51d6 | 215 | fprintf(err_file, "%s\n", strerror(code)); |
1227625a SP |
216 | } |
217 | #endif | |
218 | ||
219 | #ifndef HAVE_WARNX | |
220 | void | |
1227625a | 221 | warnx(const char *fmt, ...) |
1227625a SP |
222 | { |
223 | va_list ap; | |
1227625a | 224 | va_start(ap, fmt); |
1227625a SP |
225 | vwarnx(fmt, ap); |
226 | va_end(ap); | |
227 | } | |
228 | #endif | |
229 | ||
230 | #ifndef HAVE_VWARNX | |
231 | void | |
232 | vwarnx(fmt, ap) | |
233 | const char *fmt; | |
234 | va_list ap; | |
235 | { | |
b45f51d6 SP |
236 | if (err_file == 0) |
237 | err_set_file((FILE *)0); | |
238 | fprintf(err_file, "%s: ", __progname); | |
1227625a | 239 | if (fmt != NULL) |
b45f51d6 SP |
240 | vfprintf(err_file, fmt, ap); |
241 | fprintf(err_file, "\n"); | |
1227625a SP |
242 | } |
243 | #endif |