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 "telnet_run.h"

​

#include "zbxcomms.h"

#include "log.h"

#include "zbxnum.h"

​

extern char    *CONFIG_SOURCE_IP;

​

/*

 * Example: telnet.run["ls /"]

 */

int telnet_run(DC_ITEM *item, AGENT_RESULT *result, const char *encoding)

{

    zbx_socket_t    s;

    int     ret = NOTSUPPORTED, flags;

​

    zabbix_log(LOG_LEVEL_DEBUG, "In %s()", __func__);

​

    if (FAIL == zbx_tcp_connect(&s, CONFIG_SOURCE_IP, item->interface.addr, item->interface.port, 0,

            ZBX_TCP_SEC_UNENCRYPTED, NULL, NULL))

    {

        SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot connect to TELNET server: %s",

                zbx_socket_strerror()));

        goto close;

    }

​

    flags = fcntl(s.socket, F_GETFL);

​

    if (-1 == flags)

    {

        SET_MSG_RESULT(result, zbx_dsprintf(NULL, " error in getting the status flag: %s",

                zbx_strerror(errno)));

    }

​

    if (0 == (flags & O_NONBLOCK) && (-1 == fcntl(s.socket, F_SETFL, flags | O_NONBLOCK)))

    {

        SET_MSG_RESULT(result, zbx_dsprintf(NULL, " error in setting the status flag: %s",

                zbx_strerror(errno)));

    }

​

    if (FAIL == zbx_telnet_login(s.socket, item->username, item->password, result))

        goto tcp_close;

​

    if (FAIL == zbx_telnet_execute(s.socket, item->params, result, encoding))