return null;
        }

        if ( this._domains != null && System.currentTimeMillis() > this._domains.expiration ) {
            this._domains = null;
        }
        if ( this._domains != null )
            return this._domains.map;
        try {
            String authDomain = tf.getCredentials().getUserDomain();

        this.recv_buf_size = Math.min(this.recv_buf_size, this.server.maxBufferSize);
        this.tx_buf_size = Math.min(this.tx_buf_size, this.server.maxBufferSize);

        this.capabilities &= this.server.scapabilities;
        if ( ( this.server.scapabilities & SmbConstants.CAP_EXTENDED_SECURITY ) == SmbConstants.CAP_EXTENDED_SECURITY )

                if ( th.isSMB2() ) {
                    this.handle = this.pipe.openUnshared(this.uncPath, 0, this.access, this.sharing, SmbConstants.ATTR_NORMAL, 0);
                    return this.handle.acquire();
                }

                // TODO: wait for pipe, still not sure when this needs to be called exactly
                if ( this.uncPath.startsWith("\\pipe\\") ) {

     */
    public boolean isOpen () {
        return this.handle != null && this.handle.isValid();
    }


    protected synchronized SmbFileHandleImpl ensureOpen () throws CIFSException {
        if ( !isOpen() ) {
            // one extra acquire to keep this open till the stream is released
            this.handle = this.file.openUnshared(this.openFlags, this.access, this.sharing, SmbConstants.ATTR_NORMAL, 0).acquire();

        this.revision = sid.revision;
        this.sub_authority_count = sid.sub_authority_count;
        this.identifier_authority = sid.identifier_authority;
        this.sub_authority = sid.sub_authority;
        this.type = type;
        this.domainName = domainName;
        this.acctName = acctName;

        if ( decrementAuthority ) {
            this.sub_authority_count--;

            if ( log.isDebugEnabled() ) {
                log.debug("Connecting " + this.name);
            }

            this.state = 1;
            this.te = null;

            Thread t = new Thread(this, this.name);
            t.setDaemon(true);
            this.thread = t;

            synchronized ( this.thread ) {
                t.start();
                t.wait(timeout); /* wait for doConnect */

     */
    public void bind () throws DcerpcException, IOException {
        synchronized ( this ) {
            try {
                this.state = 1;
                DcerpcMessage bind = new DcerpcBind(this.binding, this);
                sendrecv(bind);
            }
            catch ( IOException ioe ) {
                this.state = 0;
                throw ioe;
            }
        }
    }


    /**

                }
            }
        }

        this.domain = domain;
        this.username = username;
        this.password = password;

        initDefaults();

        if( domain == null ) this.domain = DEFAULT_DOMAIN;
        if( username == null ) this.username = DEFAULT_USERNAME;
        if( password == null ) this.password = DEFAULT_PASSWORD;
    }
/**

    public String getUserRealm () {
        return this.userRealm;
    }


    public String getUserPrincipalName () {
        return this.userPrincipalName;
    }


    public ArrayList<InetAddress> getUserAddresses () {
        return this.userAddresses;
    }


    public List<KerberosAuthData> getUserAuthorizations () {
        return this.userAuthorizations;
    }

 *                   "Eric Glass" <jcifs at samba dot org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,