/*
** Zabbix
** Copyright (C) 2001-2021 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"

#ifdef HAVE_SYS_UTSNAME_H
#	include <sys/utsname.h>
#endif

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)
{
	struct utsname	name;
	char		*hostname;
	int		rc;

	if (2 < request->nparam)
	{
		SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
		return SYSINFO_RET_FAIL;
	}

	if (-1 == uname(&name))
	{
		SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot obtain system information: %s", zbx_strerror(errno)));
		return SYSINFO_RET_FAIL;
	}

	hostname = zbx_strdup(NULL, name.nodename);

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

	return rc;
}