2 * SPDX-License-Identifier: BSD-3-Clause
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #if defined(LIBC_SCCS) && !defined(lint)
33 static char sccsid[] = "@(#)err.c 8.1 (Berkeley) 6/4/93";
34 #endif /* LIBC_SCCS and not lint */
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #include "namespace.h"
45 #include "un-namespace.h"
47 #include "libc_private.h"
49 static FILE *err_file; /* file to use for error output */
50 static void (*err_exit)(int);
53 * This is declared to take a `void *' so that the caller is not required
54 * to include <stdio.h> first. However, it is really a `FILE *', and the
55 * manual page documents it as such.
58 err_set_file(void *fp)
67 err_set_exit(void (*ef)(int))
72 __weak_reference(_err, err);
75 _err(int eval, const char *fmt, ...)
79 verrc(eval, errno, fmt, ap);
84 verr(int eval, const char *fmt, va_list ap)
86 verrc(eval, errno, fmt, ap);
90 errc(int eval, int code, const char *fmt, ...)
94 verrc(eval, code, fmt, ap);
99 verrc(int eval, int code, const char *fmt, va_list ap)
101 if (err_file == NULL)
103 fprintf(err_file, "%s: ", _getprogname());
105 vfprintf(err_file, fmt, ap);
106 fprintf(err_file, ": ");
108 fprintf(err_file, "%s\n", strerror(code));
115 errx(int eval, const char *fmt, ...)
119 verrx(eval, fmt, ap);
124 verrx(int eval, const char *fmt, va_list ap)
126 if (err_file == NULL)
128 fprintf(err_file, "%s: ", _getprogname());
130 vfprintf(err_file, fmt, ap);
131 fprintf(err_file, "\n");
137 __weak_reference(_warn, warn);
140 _warn(const char *fmt, ...)
144 vwarnc(errno, fmt, ap);
149 vwarn(const char *fmt, va_list ap)
151 vwarnc(errno, fmt, ap);
155 warnc(int code, const char *fmt, ...)
159 vwarnc(code, fmt, ap);
164 vwarnc(int code, const char *fmt, va_list ap)
166 if (err_file == NULL)
168 fprintf(err_file, "%s: ", _getprogname());
170 vfprintf(err_file, fmt, ap);
171 fprintf(err_file, ": ");
173 fprintf(err_file, "%s\n", strerror(code));
177 warnx(const char *fmt, ...)
186 vwarnx(const char *fmt, va_list ap)
188 if (err_file == NULL)
190 fprintf(err_file, "%s: ", _getprogname());
192 vfprintf(err_file, fmt, ap);
193 fprintf(err_file, "\n");