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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 | 4 | * Remy Card <card@Linux.EU.Org>, 1994-1997 |
df9ae507 | 5 | * Stelian Pop <pop@cybercable.fr>, 1999 |
1227625a SP |
6 | */ |
7 | ||
8 | /*- | |
9 | * Copyright (c) 1993 | |
10 | * The Regents of the University of California. All rights reserved. | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or without | |
13 | * modification, are permitted provided that the following conditions | |
14 | * are met: | |
15 | * 1. Redistributions of source code must retain the above copyright | |
16 | * notice, this list of conditions and the following disclaimer. | |
17 | * 2. Redistributions in binary form must reproduce the above copyright | |
18 | * notice, this list of conditions and the following disclaimer in the | |
19 | * documentation and/or other materials provided with the distribution. | |
20 | * 3. All advertising materials mentioning features or use of this software | |
21 | * must display the following acknowledgement: | |
22 | * This product includes software developed by the University of | |
23 | * California, Berkeley and its contributors. | |
24 | * 4. Neither the name of the University nor the names of its contributors | |
25 | * may be used to endorse or promote products derived from this software | |
26 | * without specific prior written permission. | |
27 | * | |
28 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
29 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
30 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
31 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
32 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
33 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
34 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
35 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
36 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
37 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
38 | * SUCH DAMAGE. | |
39 | */ | |
40 | ||
df9ae507 SP |
41 | #ifndef lint |
42 | static const char rcsid[] = | |
43 | "$Id: compaterr.c,v 1.4 1999/10/13 09:57:19 stelian Exp $"; | |
44 | #endif /* not lint */ | |
45 | ||
ddd2ef55 | 46 | #include <compaterr.h> |
1227625a SP |
47 | #include <errno.h> |
48 | #include <stdio.h> | |
49 | #include <stdlib.h> | |
50 | #include <string.h> | |
51 | ||
1227625a | 52 | #include <stdarg.h> |
1227625a SP |
53 | |
54 | #include <config.h> | |
55 | ||
56 | extern char *__progname; /* Program name, from crt0. */ | |
57 | ||
ddd2ef55 SP |
58 | #if !defined(HAVE_ERR) || !defined(HAVE_ERRX) || !defined(HAVE_VERR) || !defined(HAVE_VERRX) || !defined(HAVE_VWARN) || !defined(HAVE_VWARNX) || !defined(HAVE_WARN) || !defined(HAVE_WARNX) |
59 | ||
60 | __BEGIN_DECLS | |
61 | __dead void errc __P((int, int, const char *, ...)); | |
62 | __dead void verrc __P((int, int, const char *, _BSD_VA_LIST_)); | |
63 | void warnc __P((int, const char *, ...)); | |
64 | void vwarnc __P((int, const char *, _BSD_VA_LIST_)); | |
65 | void err_set_file __P((void *)); | |
66 | void err_set_exit __P((void (*)(int))); | |
67 | __END_DECLS | |
68 | ||
b45f51d6 SP |
69 | static void (*err_exit)(int); |
70 | ||
ddd2ef55 | 71 | static FILE *err_file; /* file to use for error output */ |
b45f51d6 SP |
72 | /* |
73 | * This is declared to take a `void *' so that the caller is not required | |
74 | * to include <stdio.h> first. However, it is really a `FILE *', and the | |
75 | * manual page documents it as such. | |
76 | */ | |
77 | void | |
78 | err_set_file(void *fp) | |
79 | { | |
80 | if (fp) | |
81 | err_file = fp; | |
82 | else | |
83 | err_file = stderr; | |
84 | } | |
85 | ||
86 | void | |
87 | err_set_exit(void (*ef)(int)) | |
88 | { | |
89 | err_exit = ef; | |
90 | } | |
91 | ||
1227625a | 92 | __dead void |
ddd2ef55 | 93 | errc(int eval, int code, const char *fmt, ...) |
1227625a SP |
94 | { |
95 | va_list ap; | |
1227625a | 96 | va_start(ap, fmt); |
ddd2ef55 | 97 | verrc(eval, code, fmt, ap); |
1227625a SP |
98 | va_end(ap); |
99 | } | |
1227625a | 100 | |
1227625a | 101 | __dead void |
ddd2ef55 | 102 | verrc(int eval, int code, const char *fmt, va_list ap) |
1227625a | 103 | { |
ddd2ef55 SP |
104 | if (err_file == 0) |
105 | err_set_file((FILE *)0); | |
106 | fprintf(err_file, "%s: ", __progname); | |
107 | if (fmt != NULL) { | |
108 | vfprintf(err_file, fmt, ap); | |
109 | fprintf(err_file, ": "); | |
110 | } | |
111 | fprintf(err_file, "%s\n", strerror(code)); | |
112 | if (err_exit) | |
113 | err_exit(eval); | |
114 | exit(eval); | |
b45f51d6 | 115 | } |
b45f51d6 | 116 | |
ddd2ef55 SP |
117 | void |
118 | warnc(int code, const char *fmt, ...) | |
b45f51d6 SP |
119 | { |
120 | va_list ap; | |
121 | va_start(ap, fmt); | |
ddd2ef55 | 122 | vwarnc(code, fmt, ap); |
b45f51d6 SP |
123 | va_end(ap); |
124 | } | |
1227625a | 125 | |
ddd2ef55 SP |
126 | void |
127 | vwarnc(int code, const char *fmt, va_list ap) | |
b45f51d6 SP |
128 | { |
129 | if (err_file == 0) | |
130 | err_set_file((FILE *)0); | |
131 | fprintf(err_file, "%s: ", __progname); | |
1227625a | 132 | if (fmt != NULL) { |
b45f51d6 SP |
133 | vfprintf(err_file, fmt, ap); |
134 | fprintf(err_file, ": "); | |
1227625a | 135 | } |
b45f51d6 | 136 | fprintf(err_file, "%s\n", strerror(code)); |
ddd2ef55 SP |
137 | } |
138 | #endif | |
139 | ||
140 | #ifndef HAVE_ERR | |
141 | __dead void | |
142 | err(int eval, const char *fmt, ...) | |
143 | { | |
144 | va_list ap; | |
145 | va_start(ap, fmt); | |
146 | verrc(eval, errno, fmt, ap); | |
147 | va_end(ap); | |
148 | } | |
149 | #endif | |
150 | ||
151 | #ifndef HAVE_VERR | |
152 | __dead void | |
153 | verr(int eval, const char *fmt, va_list ap) | |
154 | { | |
155 | verrc(eval, errno, fmt, ap); | |
1227625a SP |
156 | } |
157 | #endif | |
158 | ||
159 | #ifndef HAVE_ERRX | |
160 | __dead void | |
1227625a | 161 | errx(int eval, const char *fmt, ...) |
1227625a SP |
162 | { |
163 | va_list ap; | |
1227625a | 164 | va_start(ap, fmt); |
1227625a SP |
165 | verrx(eval, fmt, ap); |
166 | va_end(ap); | |
167 | } | |
168 | #endif | |
169 | ||
170 | #ifndef HAVE_VERRX | |
171 | __dead void | |
ddd2ef55 | 172 | verrx(int eval, const char *fmt, va_list ap) |
1227625a | 173 | { |
b45f51d6 SP |
174 | if (err_file == 0) |
175 | err_set_file((FILE *)0); | |
176 | fprintf(err_file, "%s: ", __progname); | |
1227625a | 177 | if (fmt != NULL) |
b45f51d6 SP |
178 | vfprintf(err_file, fmt, ap); |
179 | fprintf(err_file, "\n"); | |
180 | if (err_exit) | |
181 | err_exit(eval); | |
1227625a SP |
182 | exit(eval); |
183 | } | |
184 | #endif | |
185 | ||
186 | #ifndef HAVE_WARN | |
187 | void | |
1227625a | 188 | warn(const char *fmt, ...) |
1227625a SP |
189 | { |
190 | va_list ap; | |
1227625a | 191 | va_start(ap, fmt); |
b45f51d6 | 192 | vwarnc(errno, fmt, ap); |
1227625a SP |
193 | va_end(ap); |
194 | } | |
195 | #endif | |
196 | ||
197 | #ifndef HAVE_VWARN | |
198 | void | |
ddd2ef55 | 199 | vwarn(const char *fmt, va_list ap) |
1227625a | 200 | { |
b45f51d6 SP |
201 | vwarnc(errno, fmt, ap); |
202 | } | |
203 | #endif | |
204 | ||
1227625a SP |
205 | #ifndef HAVE_WARNX |
206 | void | |
1227625a | 207 | warnx(const char *fmt, ...) |
1227625a SP |
208 | { |
209 | va_list ap; | |
1227625a | 210 | va_start(ap, fmt); |
1227625a SP |
211 | vwarnx(fmt, ap); |
212 | va_end(ap); | |
213 | } | |
214 | #endif | |
215 | ||
216 | #ifndef HAVE_VWARNX | |
217 | void | |
ddd2ef55 | 218 | vwarnx(const char *fmt, va_list ap) |
1227625a | 219 | { |
b45f51d6 SP |
220 | if (err_file == 0) |
221 | err_set_file((FILE *)0); | |
222 | fprintf(err_file, "%s: ", __progname); | |
1227625a | 223 | if (fmt != NULL) |
b45f51d6 SP |
224 | vfprintf(err_file, fmt, ap); |
225 | fprintf(err_file, "\n"); | |
1227625a SP |
226 | } |
227 | #endif |