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/*
** ZABBIX
** Copyright (C) 2000-2005 SIA Zabbix
**
** 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 of the License, 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.
**/
#include "config.h"
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "common.h"
#include "log.h"
#include "logfiles.h"
int process_log(char *filename,int *lastlogsize, char *value)
{
FILE *f;
struct stat buf;
zabbix_log( LOG_LEVEL_DEBUG, "In process log (%s,%d)", filename, *lastlogsize);
/* Handling of file shrinking */
if(stat(filename,&buf) == 0)
{
if(buf.st_size<*lastlogsize)
{
*lastlogsize=0;
}
}
else
{
zabbix_log( LOG_LEVEL_WARNING, "Cannot open [%s] [%s]", filename, strerror(errno));
snprintf(value,MAX_STRING_LEN-1,"%s","ZBX_NOTSUPPORTED\n");
return 1;
}
f=fopen(filename,"r");
if(NULL == f)
{
zabbix_log( LOG_LEVEL_WARNING, "Cannot open [%s] [%s]", filename, strerror(errno));
snprintf(value,MAX_STRING_LEN-1,"%s","ZBX_NOTSUPPORTED\n");
return 1;
}
if(-1 == fseek(f,*lastlogsize,SEEK_SET))
{
zabbix_log( LOG_LEVEL_WARNING, "Cannot set postition to [%d] for [%s] [%s]", *lastlogsize, filename, strerror(errno));
snprintf(value,MAX_STRING_LEN-1,"%s","ZBX_NOTSUPPORTED\n");
fclose(f);
return 1;
}
if(NULL == fgets(value, MAX_STRING_LEN-1, f))
{
/* EOF */
fclose(f);
return 1;
}
fclose(f);
*lastlogsize+=strlen(value);
return 0;
}
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