<?php
require_once("guiconfig.inc");
//require("interfaces.inc");
//require("util.inc");
//require("pfsense-utils.inc");
//require("system.inc");
//require("head.inc");
//require("fbegin.inc");
//require("functions.inc");
        global $g, $config;
// get system nic's and create a database for them
        $array_of_real_nic_names = array();
        $array_of_custom_nic_names = array();
        $ifdescrs = array('wan' => 'WAN', 'lan' => 'LAN');
		for ($j = 1; isset($config['interfaces']['opt' . $j]); $j++) {
			$ifdescrs['opt' . $j] = $config['interfaces']['opt' . $j]['descr'];
		}
         		foreach ($ifdescrs as $ifdescr => $ifname):
/*			$ifinfo = get_interfaces_info($ifdescr);
*/
echo "$ifname ";
			$real_nic_names = convert_friendly_interface_to_real_interface_name($ifname);
			array_push($array_of_real_nic_names, $real_nic_names);
echo "$real_nic_names ";
		endforeach;
        // Get already nic's assigned to vnstat
        exec("ls /var/db/vnstat/ | grep -v '\.'", $vnstat_nic);
        // Compare real nic's with nic's assigned to vnstat
        $result = array_diff($array_of_real_nic_names, $vnstat_nic);
echo "$result";
//require("fend.inc");
?>