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/* $Id: debug.c,v 1.1 2000/11/28 20:20:38 reinelt Exp $
*
* debug() and error() functions
*
* Copyright 1999, 2000 by Michael Reinelt (reinelt@eunet.at)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* $Log: debug.c,v $
* Revision 1.1 2000/11/28 20:20:38 reinelt
*
* added debug.c
* things like that should not hapen. debug.c exists for a few months now, but was never added to CVS. Shit happens....
*
*/
/*
* exported functions:
*
* message (level, format, ...)
* passes the arguments to vsprintf() and
* writes the resulting string either to stdout
* or syslog.
* this function should not be called directly,
* but the macros info(), debug() and error()
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <syslog.h>
#include "debug.h"
void message (int level, const char *format, ...)
{
va_list ap;
char buffer[256];
static int log_open=0;
extern int debugging;
extern int foreground;
if (level>debugging) return;
va_start(ap, format);
(void) vsnprintf(buffer, sizeof(buffer), format, ap);
va_end(ap);
if (foreground) {
fprintf (level?stdout:stderr, "%s\n", buffer);
return;
}
if (!log_open) {
openlog ("LCD4Linux", LOG_PID, LOG_USER);
log_open=1;
}
switch (level) {
case 0:
syslog (LOG_ERR, "%s", buffer);
break;
case 1:
syslog (LOG_INFO, "%s", buffer);
break;
default:
syslog (LOG_DEBUG, "%s", buffer);
}
}
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