HardenedBSD/libexec/bugfiler/error.c

/*
 * Copyright (c) 1986, 1987, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static char sccsid[] = "@(#)error.c	8.1 (Berkeley) 6/4/93";
#endif /* not lint */

#include <sys/param.h>

#include <dirent.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>

#include "bug.h"
#include "extern.h"

static short	err_redir;			/* stderr redirected */

/*
 * seterr --
 *	redirect stderr for error processing
 */
void
seterr()
{
	if (!freopen(ERROR_FILE, "a", stderr))
		error("can't open error file %s.", ERROR_FILE);
	err_redir = YES;
}

/*
 * error --
 *	write errors to log file and die
 */
void
error(fmt, arg)
	register char	*fmt,
			*arg;
{
	static char	logmsg[MAXLINELEN];	/* syslog message */

	if (err_redir) {
		/* don't combine these, "fmt" may not require "arg" */
		fprintf(stderr, "\t%s\n\t", tmpname);
		fprintf(stderr, fmt, arg);
		fputc('\n', stderr);
	}
	else {
		sprintf(logmsg, "bugfiler: %s", fmt);
		syslog(LOG_ERR, logmsg, arg);
	}
#ifdef METOO
	exit(ERR);
#else
	exit(OK);
#endif
}