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/*
* Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
* All rights reserved.
*
* This is partly derived from code by Angelos D. Keromytis, kermit@forthnet.gr
*
* 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 Niels Provos.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* $OpenBSD: errlog.c,v 1.2 2000/06/29 00:02:28 deraadt Exp $
*/
#ifndef lint
static char rcsid[] = "$Id: errlog.c,v 1.2 2000/06/29 00:02:28 deraadt Exp $";
#endif
#define _ERRLOG_C_
#include <stdio.h>
#include <stdlib.h>
#ifdef __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#include <string.h>
#include <syslog.h>
#include <sys/types.h>
#include <errno.h>
#include "photuris.h"
#include "buffer.h"
#include "errlog.h"
#ifdef NEED_SNPRINTF
#include "snprintf.h"
#endif
#if defined(sun) || defined(_AIX)
extern char *sys_errlist[];
extern int errno;
#endif
#define LOG_SIZE 200
void _log_error(int flag, char *fmt, va_list ap);
/*
* crit_error:
* log the error and exit
*/
void
#ifdef __STDC__
crit_error(int flag, char *fmt, ...)
#else
crit_error(flag, fmt, va_alist)
int flag;
char *fmt;
va_dcl
#endif
{
va_list ap;
#ifdef __STDC__
va_start(ap, fmt);
#else
va_start(ap);
fmt = va_arg (ap, char *);
#endif
_log_error(flag, fmt, ap);
va_end(ap);
exit(-1);
}
/*
* log_error:
* log an error
*/
void
#ifdef __STDC__
log_error(int flag, char *fmt, ...)
#else
log_error(flag, fmt, va_alist)
int flag;
char *fmt;
va_dcl
#endif
{
va_list ap;
#ifdef __STDC__
va_start(ap, fmt);
#else
va_start(ap);
fmt = va_arg (ap, char *);
#endif
_log_error(flag, fmt, ap);
va_end(ap);
}
void
_log_error(int flag, char *fmt, va_list ap)
{
char *buffer = calloc(LOG_SIZE, sizeof(char));
if(buffer == NULL)
return;
if (!daemon_mode)
sprintf(buffer, "%s: ", (flag ? "Error" : "Warning"));
else
buffer[0] = '\0';
vsnprintf(buffer+strlen(buffer), LOG_SIZE-1, fmt, ap);
buffer[LOG_SIZE-1] = '\0';
if (daemon_mode)
syslog(LOG_WARNING, "%s", buffer);
else {
fprintf(stderr, buffer);
if (flag)
fprintf(stderr, " : %s", sys_errlist[errno]);
fprintf(stderr, ".\n");
}
free(buffer);
}
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