this.lport = lport;
        this.laddr = laddr;

        try {
            baddr = Config.getInetAddress( "jcifs.smb1.netbios.baddr",
                        InetAddress.getByName( "255.255.255.255" ));
        } catch( UnknownHostException uhe ) {
        }

        snd_buf = new byte[SND_BUF_SIZE];
        rcv_buf = new byte[RCV_BUF_SIZE];

    public NameServiceClientImpl ( CIFSContext tc ) {
        this(tc.getConfig().getNetbiosLocalPort(), tc.getConfig().getNetbiosLocalAddress(), tc);
    }


    NameServiceClientImpl ( int lport, InetAddress laddr, CIFSContext tc ) {
        this.lport = lport;
        this.laddr = laddr;
        this.transportContext = tc;

        this.baddr = tc.getConfig().getBroadcastAddress();

    static final int DEFAULT_SSN_LIMIT = 250;
    static final int DEFAULT_CONN_TIMEOUT = 35000;

    static final InetAddress LADDR = Config.getLocalHost();
    static final int LPORT = Config.getInt( "jcifs.smb1.smb.client.lport", 0 );
    static final int MAX_MPX_COUNT = Config.getInt( "jcifs.smb1.smb.client.maxMpxCount", DEFAULT_MAX_MPX_COUNT );

        this.idleTimeoutDisabled = Config.getBoolean(p, "jcifs.smb.client.disableIdleTimeout", false);

        this.smbLocalAddress = Config.getLocalHost(p);
        this.smbLocalPort = Config.getInt(p, "jcifs.smb.client.lport", 0);
        this.maxMpxCount = Config.getInt(p, "jcifs.smb.client.maxMpxCount", SmbConstants.DEFAULT_MAX_MPX_COUNT);
        this.smbSendBufferSize = Config.getInt(p, "jcifs.smb.client.snd_buf_size", SmbConstants.DEFAULT_SND_BUF_SIZE);

     * 
     * @return timeout for SMB responses, in milliseconds
     */
    int getResponseTimeout ();


    /**
     * 
     * Property <tt>jcifs.smb.client.lport</tt> (int)
     * 
     * @return local port to use for outgoing connections
     */
    int getLocalPort ();


    /**
     * 
     * Property <tt>jcifs.smb.client.laddr</tt> (string)
     * 

        try {
            negotiate( port, resp );
        } catch( ConnectException ce ) {
            // Try an alternate port if there was an issue communicating to the server
            // Only set the alternate port to the port property if it was successful
            int altPort = (port == 0 || port == DEFAULT_PORT) ? 139 : DEFAULT_PORT;
            negotiate( altPort, resp );
            port = altPort;

	}
	sort.Slice(clusters, func(i, j int) bool {
		iDirection, iSubset, iName, iPort := safelyParseSubsetKey(clusters[i].Name)
		jDirection, jSubset, jName, jPort := safelyParseSubsetKey(clusters[j].Name)
		if iName == jName {
			if iSubset == jSubset {
				if iPort == jPort {
					return iDirection < jDirection
				}
				return iPort < jPort
			}
			return iSubset < jSubset
		}
		return iName < jName
	})

		return err
	}
	// Sort by port, addr, type
	sort.Slice(listeners, func(i, j int) bool {
		if listeners[i].GetInternalListener() != nil && listeners[j].GetInternalListener() != nil {
			return listeners[i].GetName() < listeners[j].GetName()
		}
		iPort := retrieveListenerPort(listeners[i])
		jPort := retrieveListenerPort(listeners[j])
		if iPort != jPort {
			return iPort < jPort
		}

		expectedErr error
	}{
		{"", port, fmt.Errorf("listen tcp :%v: bind: address already in use", port)},
		{"127.0.0.1", port, fmt.Errorf("listen tcp 127.0.0.1:%v: bind: address already in use", port)},
	}

	for _, testCase := range testCases {
		err := CheckPortAvailability(testCase.host, strconv.Itoa(testCase.port), TCPOptions{})
		switch {
		case testCase.expectedErr == nil:
			if err != nil {

-A OUTPUT -p udp --dport 53 -m owner --uid-owner 1337 -j CT --zone 1
-A OUTPUT -p udp --sport 15053 -m owner --uid-owner 1337 -j CT --zone 2
-A OUTPUT -p udp --dport 53 -m owner --gid-owner 1337 -j CT --zone 1
-A OUTPUT -p udp --sport 15053 -m owner --gid-owner 1337 -j CT --zone 2
-A OUTPUT -p udp --dport 53 -j CT --zone 2
-A PREROUTING -p udp --sport 53 -j CT --zone 1