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 "checks_external.h"

​

#include "zbxexec.h"

#include "zbxsysinfo.h"

#include "zbxtime.h"

​

extern char *CONFIG_EXTERNALSCRIPTS;

​

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

 *                                                                            *

 * Purpose: retrieve data from script executed on Zabbix server               *

 *                                                                            *

 * Parameters: item           - [IN] item we are interested in                *

 *             result         - [OUT]                                         *

 *                                                                            *

 * Return value: SUCCEED - data successfully retrieved and stored in result   *

 *                         and result_str (as string)                         *

 *               NOTSUPPORTED - requested item is not supported               *

 *                                                                            *

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

int get_value_external(const zbx_dc_item_t *item, AGENT_RESULT *result)

{

    char        error[ZBX_ITEM_ERROR_LEN_MAX], *cmd = NULL, *buf = NULL;

    size_t      cmd_alloc = ZBX_KIBIBYTE, cmd_offset = 0;

    int     i, ret = NOTSUPPORTED;

    AGENT_REQUEST   request;

​

    zabbix_log(LOG_LEVEL_DEBUG, "In %s() key:'%s'", __func__, item->key);

​

    zbx_init_agent_request(&request);

​

    if (SUCCEED != zbx_parse_item_key(item->key, &request))

    {

        SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid item key format."));

        goto out;

    }

​

    cmd = (char *)zbx_malloc(cmd, cmd_alloc);

    zbx_snprintf_alloc(&cmd, &cmd_alloc, &cmd_offset, "%s/%s", CONFIG_EXTERNALSCRIPTS, get_rkey(&request));

​

    if (-1 == access(cmd, X_OK))

    {

        SET_MSG_RESULT(result, zbx_dsprintf(NULL, "%s: %s", cmd, zbx_strerror(errno)));

        goto out;