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 "sysinfo.h"

#include "log.h"

​

ZBX_METRIC  parameter_hostname =

/*  KEY         FLAG        FUNCTION        TEST PARAMETERS */

    {"system.hostname",     CF_HAVEPARAMS,  SYSTEM_HOSTNAME,        NULL};

​

int SYSTEM_HOSTNAME(AGENT_REQUEST *request, AGENT_RESULT *result)

{

    int     rc;

    char        *hostname;

    long        hostbufsize = 0;

​

    if (2 < request->nparam)

    {

        SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));

        return SYSINFO_RET_FAIL;

    }

​

#ifdef _SC_HOST_NAME_MAX

    hostbufsize = sysconf(_SC_HOST_NAME_MAX) + 1;

#endif

    if (0 == hostbufsize)

        hostbufsize = 256;

​

    hostname = zbx_malloc(NULL, hostbufsize);

​

    if (0 != gethostname(hostname, hostbufsize))

    {

        zbx_free(hostname);

        SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot obtain system information: %s", zbx_strerror(errno)));

        return SYSINFO_RET_FAIL;

    }

​

    if (FAIL == (rc = hostname_handle_params(request, result, hostname)))

        zbx_free(hostname);

​

    return rc;

}