boolean closed = msg != null && msg.equals("Socket closed");

                if ( closed ) {
                    log.trace("Remote closed connection");
                }
                else if ( timeout ) {
                    log.debug("socket timeout in non peek state", ex);
                }
                else {

    /* Construct the shared static client object that will
     * conduct all encoding and decoding of NetBIOS name service
     * messages as well as socket IO in a synchronized fashon.
     */

    private static final NameServiceClient CLIENT = new NameServiceClient();

    private static final int DEFAULT_CACHE_POLICY = 30;

        do {
/* These Socket constructors attempt to connect before SO_TIMEOUT can be applied
            if (localAddr == null) {
                socket = new Socket( address.getHostAddress(), 139 );
            } else {
                socket = new Socket( address.getHostAddress(), 139, localAddr, localPort );
            }
            socket.setSoTimeout( SO_TIMEOUT );
*/

        do {
            this.socket = new Socket();
            if ( this.localAddr != null )
                this.socket.bind(new InetSocketAddress(this.localAddr, this.localPort));
            this.socket.connect(new InetSocketAddress(this.address.getHostAddress(), 139), tc.getConfig().getConnTimeout());
            this.socket.setSoTimeout(tc.getConfig().getSoTimeout());

        if( len > 0xFFFF ) {
            throw new IOException( "write too large: " + len );
        } else if( off < 4 ) {
            throw new IOException( "NetBIOS socket output buffer requires 4 bytes available before off" );
        }

        off -= 4;

        b[off + 0] = (byte)SessionServicePacket.SESSION_MESSAGE;
        b[off + 1] = (byte)0x00; 

     * 
     * Property <tt>jcifs.smb.client.soTimeout</tt> (int, default 35000)
     * 
     * @return socket timeout, in milliseconds
     */
    int getSoTimeout ();


    /**
     * 
     * Property <tt>jcifs.smb.client.connTimeout</tt> (int, default 35000)
     * 
     * @return timeout for establishing a socket connection, in milliseconds
     */
    int getConnTimeout ();


    /**

             * because we might close the socket during a
             * request. However the chances are slim and the
             * retry code should ensure the overall request
             * is serviced. The alternative complicates things
             * more than I think is worth it.
             */

            if( socket != null ) {
                socket.close();
                socket = null;
            }

            this.closeTimeout = Math.max(this.transportContext.getConfig().getNetbiosSoTimeout(), timeout);
        }
        // If socket is still good, the new closeTimeout will
        // be ignored; see tryClose comment.
        if ( this.socket == null ) {
            this.socket = new DatagramSocket(this.lport, this.laddr);
            this.thread = new Thread(this, "JCIFS-NameServiceClient");

 */

package jcifs.smb1.netbios;

import java.net.Socket;

import jcifs.smb1.Config;
import jcifs.smb1.util.LogStream;

import java.net.InetAddress;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;

/**
Do not use this class. Writing to the OutputStream of this type of socket
requires leaving a 4 byte prefix for the NBT header. IOW you must call