Zabbix

/*

** Zabbix

** Copyright (C) 2001-2025 Zabbix SIA

**

** 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

#include "log.h"

​

#include "mutexs.h"

#include "threads.h"

#include "cfg.h"

#ifdef _WINDOWS

#   include "messages.h"

#   include "service.h"

#   include "sysinfo.h"

static HANDLE       system_log_handle = INVALID_HANDLE_VALUE;

#endif

​

static char     log_filename[MAX_STRING_LEN];

static int      log_type = LOG_TYPE_UNDEFINED;

static zbx_mutex_t  log_access = ZBX_MUTEX_NULL;

int         zbx_log_level = LOG_LEVEL_WARNING;

​

#ifdef _WINDOWS

#   define LOCK_LOG     zbx_mutex_lock(log_access)

#   define UNLOCK_LOG   zbx_mutex_unlock(log_access)

#else

#   define LOCK_LOG     lock_log()

#   define UNLOCK_LOG   unlock_log()

#endif

​

#define ZBX_MESSAGE_BUF_SIZE    1024

​

#ifdef _WINDOWS

#   define STDIN_FILENO _fileno(stdin)

#   define STDOUT_FILENO    _fileno(stdout)

#   define STDERR_FILENO    _fileno(stderr)

​

#   define ZBX_DEV_NULL "NUL"

​

#   define dup2(fd1, fd2)   _dup2(fd1, fd2)

#else

#   define ZBX_DEV_NULL "/dev/null"

#endif

​

#ifndef _WINDOWS

const char  *zabbix_get_log_level_string(void)

{

    switch (zbx_log_level)

    {

        case LOG_LEVEL_EMPTY:

            return "0 (none)";

        case LOG_LEVEL_CRIT:

            return "1 (critical)";

        case LOG_LEVEL_ERR:

            return "2 (error)";

        case LOG_LEVEL_WARNING:

            return "3 (warning)";

        case LOG_LEVEL_DEBUG:

            return "4 (debug)";

        case LOG_LEVEL_TRACE:

            return "5 (trace)";

    }

​

    THIS_SHOULD_NEVER_HAPPEN;

    exit(EXIT_FAILURE);

}

​

int zabbix_increase_log_level(void)

{

    if (LOG_LEVEL_TRACE == zbx_log_level)

        return FAIL;

​

    zbx_log_level = zbx_log_level + 1;

​

    return SUCCEED;

}

​