193 lines
4.3 KiB
C
193 lines
4.3 KiB
C
/*-
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)err.c 8.1 (Berkeley) 6/4/93";
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#endif /* LIBC_SCCS and not lint */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "namespace.h"
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#include <err.h>
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#include <errno.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "un-namespace.h"
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#include "libc_private.h"
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static FILE *err_file; /* file to use for error output */
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static void (*err_exit)(int);
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/*
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* This is declared to take a `void *' so that the caller is not required
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* to include <stdio.h> first. However, it is really a `FILE *', and the
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* manual page documents it as such.
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*/
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void
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err_set_file(void *fp)
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{
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if (fp)
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err_file = fp;
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else
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err_file = stderr;
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}
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void
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err_set_exit(void (*ef)(int))
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{
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err_exit = ef;
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}
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__weak_reference(_err, err);
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void
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_err(int eval, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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verrc(eval, errno, fmt, ap);
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va_end(ap);
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}
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void
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verr(int eval, const char *fmt, va_list ap)
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{
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verrc(eval, errno, fmt, ap);
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}
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void
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errc(int eval, int code, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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verrc(eval, code, fmt, ap);
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va_end(ap);
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}
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void
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verrc(int eval, int code, const char *fmt, va_list ap)
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{
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if (err_file == 0)
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err_set_file((FILE *)0);
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fprintf(err_file, "%s: ", _getprogname());
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if (fmt != NULL) {
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vfprintf(err_file, fmt, ap);
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fprintf(err_file, ": ");
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}
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fprintf(err_file, "%s\n", strerror(code));
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if (err_exit)
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err_exit(eval);
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exit(eval);
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}
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void
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errx(int eval, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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verrx(eval, fmt, ap);
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va_end(ap);
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}
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void
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verrx(int eval, const char *fmt, va_list ap)
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{
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if (err_file == 0)
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err_set_file((FILE *)0);
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fprintf(err_file, "%s: ", _getprogname());
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if (fmt != NULL)
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vfprintf(err_file, fmt, ap);
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fprintf(err_file, "\n");
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if (err_exit)
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err_exit(eval);
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exit(eval);
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}
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__weak_reference(_warn, warn);
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void
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_warn(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vwarnc(errno, fmt, ap);
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va_end(ap);
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}
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void
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vwarn(const char *fmt, va_list ap)
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{
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vwarnc(errno, fmt, ap);
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}
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void
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warnc(int code, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vwarnc(code, fmt, ap);
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va_end(ap);
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}
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void
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vwarnc(int code, const char *fmt, va_list ap)
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{
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if (err_file == 0)
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err_set_file((FILE *)0);
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fprintf(err_file, "%s: ", _getprogname());
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if (fmt != NULL) {
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vfprintf(err_file, fmt, ap);
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fprintf(err_file, ": ");
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}
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fprintf(err_file, "%s\n", strerror(code));
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}
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void
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warnx(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vwarnx(fmt, ap);
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va_end(ap);
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}
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void
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vwarnx(const char *fmt, va_list ap)
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{
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if (err_file == 0)
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err_set_file((FILE *)0);
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fprintf(err_file, "%s: ", _getprogname());
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if (fmt != NULL)
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vfprintf(err_file, fmt, ap);
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fprintf(err_file, "\n");
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}
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