';
			$result = "";
			$nc_base_cmd = "/usr/bin/nc";
			$nc_args = "-w {$timeout}";
			if (!$showtext)
				$nc_args .= " -z ";
			if (!empty($srcport))
				$nc_args .= " -p {$srcport} ";

			/* Attempt to determine the interface address, if possible. Else try both. */
			if (is_ipaddrv4($host)) {
				$ifaddr = ($interface == "any") ? "" : get_interface_ip($interface);
				$nc_args .= " -4";
			} elseif (is_ipaddrv6($host)) {
				$ifaddr = ($interface == "any") ? "" : get_interface_ipv6($interface);
				$nc_args .= " -6";
			} else {
				switch ($ipprotocol) {
					case "ipv4":
						$ifaddr = get_interface_ip($interface);
						$nc_ipproto = " -4";
						break;
					case "ipv6":
						$ifaddr = get_interface_ipv6($interface);
						$nc_ipproto = " -6";
						break;
					case "any":
						$ifaddr = get_interface_ip($interface);
						$nc_ipproto = (!empty($ifaddr)) ? " -4" : "";
						if (empty($ifaddr)) {
							$ifaddr = get_interface_ipv6($interface);
							$nc_ipproto = (!empty($ifaddr)) ? " -6" : "";
						}
						break;
				}
				/* Netcat doesn't like it if we try to connect using a certain type of IP without specifying the family. */
				if (!empty($ifaddr)) {
					$nc_args .= $nc_ipproto;
				} elseif ($interface == "any") {
					switch ($ipprotocol) {
						case "ipv4":
							$nc_ipproto = " -4";
							break;
						case "ipv6":
							$nc_ipproto = " -6";
							break;
					}
					$nc_args .= $nc_ipproto;
				}
			}
			/* Only add on the interface IP if we managed to find one. */
			if (!empty($ifaddr))
				$nc_args .= " -s {$ifaddr} ";

			$nc_cmd = "{$nc_base_cmd} {$nc_args} " . escapeshellarg($host) . " " . escapeshellarg($port) . " 2>&1";
			exec($nc_cmd, $result, $retval);
			//echo "NC CMD: {$nc_cmd}\n\n";
			if (empty($result)) {
				if ($showtext)
					echo gettext("No output received, or connection failed. Try with \"Show Remote Text\" unchecked first.");
				else
					echo gettext("Connection failed (Refused/Timeout)");
			} else {
				if (is_array($result)) {
					foreach ($result as $resline) {
						echo htmlspecialchars($resline) . "\n";
					}
				} else {
					echo htmlspecialchars($result);
				}
			}
			echo '