Zabbix

/*

** Zabbix

** Copyright (C) 2001-2023 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 "zbxsysinfo.h"

#include "sysinfo.h"

#include "alias/alias.h"

​

#include "log.h"

#include "zbxthreads.h"

#if !defined(_WINDOWS) && !defined(__MINGW32__)

#include "zbxnix.h"

#endif

#include "zbxalgo.h"

#include "zbxregexp.h"

#include "zbxstr.h"

#include "zbxnum.h"

#include "zbxparam.h"

#include "zbxexpr.h"

​

#ifdef WITH_AGENT_METRICS

#   include "agent/agent.h"

#endif

​

#ifdef WITH_COMMON_METRICS

    #include "common/zbxsysinfo_common.h"

#endif

​

#ifdef WITH_HTTP_METRICS

#   include "common/http_metrics.h"

#endif

​

#ifdef WITH_SIMPLE_METRICS

#   include "simple/simple.h"

#endif

​

#ifdef WITH_SPECIFIC_METRICS

#   include "specsysinfo.h"

#endif

​

typedef struct

{

    char                *pattern;

    zbx_vector_str_t        elements;

    zbx_key_access_rule_type_t  type;

    int             empty_arguments;

}

zbx_key_access_rule_t;

​

#ifdef WITH_HOSTNAME_METRIC

extern ZBX_METRIC   parameter_hostname;

#endif

​

static ZBX_METRIC       *commands = NULL;

static ZBX_METRIC       *commands_local = NULL;

zbx_vector_ptr_t        key_access_rules;

static zbx_get_config_int_f get_config_timeout_cb = NULL;

​

#define ZBX_COMMAND_ERROR       0

#define ZBX_COMMAND_WITHOUT_PARAMS  1

#define ZBX_COMMAND_WITH_PARAMS     2

​

static int  compare_key_access_rules(const void *rule_a, const void *rule_b);

static int  zbx_parse_key_access_rule(char *pattern, zbx_key_access_rule_t *rule);

​

/******************************************************************************

 *                                                                            *

 * Purpose: parses item key and splits it into command and parameters         *

 *                                                                            *

 * Return value: ZBX_COMMAND_ERROR - error                                    *

 *               ZBX_COMMAND_WITHOUT_PARAMS - command without parameters      *

 *               ZBX_COMMAND_WITH_PARAMS - command with parameters            *

 *                                                                            *

 ******************************************************************************/

static int  parse_command_dyn(const char *command, char **cmd, char **param)

{