function do_ping($wizard)
{
$step = intval($wizard->get_step_data('scan_step'));
if ($step == 0) {
$nets = $wizard->get_step_data('scan_nets');
if (count($nets) < 1) {
$msg = _('Invalid networks selected to scan');
set_scan_error_message($wizard, $msg);
$response['error'] = TRUE;
return $response;
}
$nets = implode(' ', $nets);
$obj = new Scan($nets);
// ping scan
$obj->search_hosts();
$wizard->set_step_data('scan_step', 1);
} else {
$obj = new Scan();
}
$data = array();
$status = $obj->get_status();
if ($status == 'Searching Hosts') {
$data['finish'] = FALSE;
} elseif ($status == 'Search Finished') {
$total = $obj->get_num_of_hosts();
if ($total == 0) {
$next_step = 3;
$obj->delete_data();
} else {
$res = $obj->launch_scan();
if ($res === FALSE) {
$msg = _('Impossible to launch NMAP scan');
set_scan_error_message($wizard, $msg);
$response['error'] = TRUE;
return $response;
}
$next_step = 2;
}
$wizard->set_step_data('scan_hosts', $total);
$wizard->set_step_data('scan_step', $next_step);
$data['finish'] = TRUE;
} else {
$msg = _("Invalid NMAP status ({$status}). Expecting 'Searching Hosts' or 'Search Finished'");
set_scan_error_message($wizard, $msg);
$response['error'] = TRUE;
return $response;
}
$response['error'] = FALSE;
$response['data'] = $data;
$wizard->save_status();
return $response;
}