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1 | /* | |
2 | * Ported to Linux's Second Extended File System as part of the | |
3 | * dump and restore backup suit | |
4 | * Remy Card <card@Linux.EU.Org>, 1994-1997 | |
5 | * Stelian Pop <pop@cybercable.fr>, 1999 | |
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. | |
40 | * | |
41 | * $Id: compaterr.c,v 1.3 1999/10/11 13:31:10 stelian Exp $ | |
42 | */ | |
43 | ||
44 | #include <compaterr.h> | |
45 | #include <errno.h> | |
46 | #include <stdio.h> | |
47 | #include <stdlib.h> | |
48 | #include <string.h> | |
49 | ||
50 | #include <stdarg.h> | |
51 | ||
52 | #include <config.h> | |
53 | ||
54 | extern char *__progname; /* Program name, from crt0. */ | |
55 | ||
56 | #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) | |
57 | ||
58 | __BEGIN_DECLS | |
59 | __dead void errc __P((int, int, const char *, ...)); | |
60 | __dead void verrc __P((int, int, const char *, _BSD_VA_LIST_)); | |
61 | void warnc __P((int, const char *, ...)); | |
62 | void vwarnc __P((int, const char *, _BSD_VA_LIST_)); | |
63 | void err_set_file __P((void *)); | |
64 | void err_set_exit __P((void (*)(int))); | |
65 | __END_DECLS | |
66 | ||
67 | static void (*err_exit)(int); | |
68 | ||
69 | static FILE *err_file; /* file to use for error output */ | |
70 | /* | |
71 | * This is declared to take a `void *' so that the caller is not required | |
72 | * to include <stdio.h> first. However, it is really a `FILE *', and the | |
73 | * manual page documents it as such. | |
74 | */ | |
75 | void | |
76 | err_set_file(void *fp) | |
77 | { | |
78 | if (fp) | |
79 | err_file = fp; | |
80 | else | |
81 | err_file = stderr; | |
82 | } | |
83 | ||
84 | void | |
85 | err_set_exit(void (*ef)(int)) | |
86 | { | |
87 | err_exit = ef; | |
88 | } | |
89 | ||
90 | __dead void | |
91 | errc(int eval, int code, const char *fmt, ...) | |
92 | { | |
93 | va_list ap; | |
94 | va_start(ap, fmt); | |
95 | verrc(eval, code, fmt, ap); | |
96 | va_end(ap); | |
97 | } | |
98 | ||
99 | __dead void | |
100 | verrc(int eval, int code, const char *fmt, va_list ap) | |
101 | { | |
102 | if (err_file == 0) | |
103 | err_set_file((FILE *)0); | |
104 | fprintf(err_file, "%s: ", __progname); | |
105 | if (fmt != NULL) { | |
106 | vfprintf(err_file, fmt, ap); | |
107 | fprintf(err_file, ": "); | |
108 | } | |
109 | fprintf(err_file, "%s\n", strerror(code)); | |
110 | if (err_exit) | |
111 | err_exit(eval); | |
112 | exit(eval); | |
113 | } | |
114 | ||
115 | void | |
116 | warnc(int code, const char *fmt, ...) | |
117 | { | |
118 | va_list ap; | |
119 | va_start(ap, fmt); | |
120 | vwarnc(code, fmt, ap); | |
121 | va_end(ap); | |
122 | } | |
123 | ||
124 | void | |
125 | vwarnc(int code, const char *fmt, va_list ap) | |
126 | { | |
127 | if (err_file == 0) | |
128 | err_set_file((FILE *)0); | |
129 | fprintf(err_file, "%s: ", __progname); | |
130 | if (fmt != NULL) { | |
131 | vfprintf(err_file, fmt, ap); | |
132 | fprintf(err_file, ": "); | |
133 | } | |
134 | fprintf(err_file, "%s\n", strerror(code)); | |
135 | } | |
136 | #endif | |
137 | ||
138 | #ifndef HAVE_ERR | |
139 | __dead void | |
140 | err(int eval, const char *fmt, ...) | |
141 | { | |
142 | va_list ap; | |
143 | va_start(ap, fmt); | |
144 | verrc(eval, errno, fmt, ap); | |
145 | va_end(ap); | |
146 | } | |
147 | #endif | |
148 | ||
149 | #ifndef HAVE_VERR | |
150 | __dead void | |
151 | verr(int eval, const char *fmt, va_list ap) | |
152 | { | |
153 | verrc(eval, errno, fmt, ap); | |
154 | } | |
155 | #endif | |
156 | ||
157 | #ifndef HAVE_ERRX | |
158 | __dead void | |
159 | errx(int eval, const char *fmt, ...) | |
160 | { | |
161 | va_list ap; | |
162 | va_start(ap, fmt); | |
163 | verrx(eval, fmt, ap); | |
164 | va_end(ap); | |
165 | } | |
166 | #endif | |
167 | ||
168 | #ifndef HAVE_VERRX | |
169 | __dead void | |
170 | verrx(int eval, const char *fmt, va_list ap) | |
171 | { | |
172 | if (err_file == 0) | |
173 | err_set_file((FILE *)0); | |
174 | fprintf(err_file, "%s: ", __progname); | |
175 | if (fmt != NULL) | |
176 | vfprintf(err_file, fmt, ap); | |
177 | fprintf(err_file, "\n"); | |
178 | if (err_exit) | |
179 | err_exit(eval); | |
180 | exit(eval); | |
181 | } | |
182 | #endif | |
183 | ||
184 | #ifndef HAVE_WARN | |
185 | void | |
186 | warn(const char *fmt, ...) | |
187 | { | |
188 | va_list ap; | |
189 | va_start(ap, fmt); | |
190 | vwarnc(errno, fmt, ap); | |
191 | va_end(ap); | |
192 | } | |
193 | #endif | |
194 | ||
195 | #ifndef HAVE_VWARN | |
196 | void | |
197 | vwarn(const char *fmt, va_list ap) | |
198 | { | |
199 | vwarnc(errno, fmt, ap); | |
200 | } | |
201 | #endif | |
202 | ||
203 | #ifndef HAVE_WARNX | |
204 | void | |
205 | warnx(const char *fmt, ...) | |
206 | { | |
207 | va_list ap; | |
208 | va_start(ap, fmt); | |
209 | vwarnx(fmt, ap); | |
210 | va_end(ap); | |
211 | } | |
212 | #endif | |
213 | ||
214 | #ifndef HAVE_VWARNX | |
215 | void | |
216 | vwarnx(const char *fmt, va_list ap) | |
217 | { | |
218 | if (err_file == 0) | |
219 | err_set_file((FILE *)0); | |
220 | fprintf(err_file, "%s: ", __progname); | |
221 | if (fmt != NULL) | |
222 | vfprintf(err_file, fmt, ap); | |
223 | fprintf(err_file, "\n"); | |
224 | } | |
225 | #endif |