librenms-librenms/includes/services.inc.php

<?php


function discover_service($device, $service)
{
    if (! dbFetchCell('SELECT COUNT(service_id) FROM `services` WHERE `service_type`= ? AND `device_id` = ?', array($service, $device['device_id']))) { 
        add_service($device, $service, "(Auto discovered) $service");
        log_event('Autodiscovered service: type '.mres($service), $device, 'service');
        echo '+';
    }

    echo "$service ";

}