return null;
    }

    DcerpcBinding binding;
    int max_xmit, max_recv;

    public DcerpcBind() {
    }
    DcerpcBind(DcerpcBinding binding, DcerpcHandle handle) {
        this.binding = binding;
        max_xmit = handle.max_xmit;
        max_recv = handle.max_recv;
        ptype = 11;
        flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

    public int getOpnum() {

        if ( this.maxMpxCount < 1 )
            this.maxMpxCount = 1;
        this.snd_buf_size = Math.min(this.snd_buf_size, this.server.maxBufferSize);
        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;

    /**
     * @return the binding
     */
    public DcerpcBinding getBinding () {
        return this.binding;
    }


    /**
     * @return the max_recv
     */
    int getMaxRecv () {
        return this.max_recv;
    }


    /**
     * @return the max_xmit
     */
    int getMaxXmit () {
        return this.max_xmit;
    }


    /**

    }

    private DcerpcBinding binding;
    private int max_xmit, max_recv;


    /**
     * Construct bind message
     * 
     */
    public DcerpcBind () {}


    DcerpcBind ( DcerpcBinding binding, DcerpcHandle handle ) {
        this.binding = binding;
        this.max_xmit = handle.getMaxXmit();
        this.max_recv = handle.getMaxRecv();
        this.ptype = 11;

        if ( fraglen > getMaxRecv() ) {
            throw new IOException("Unexpected fragment length: " + fraglen);
        }

        while ( have < fraglen ) {
            int r = this.handle.recv(inB, have, fraglen - have);
            if ( r == 0 ) {
                throw new IOException("Unexpected EOF");
            }
            have += r;
        }

        return have;
    }

        }
        out.write(buf, off, length);
    }
    protected void doReceiveFragment(byte[] buf, boolean isDirect) throws IOException {
        int off, flags, length;

        if (buf.length < max_recv)
            throw new IllegalArgumentException("buffer too small");

        if (isStart && !isDirect) { // start of new frag, do trans
            off = in.read(buf, 0, 1024);
        } else {

            throw new DcerpcException("Invalid binding URL: " + str);

        return binding;
    }

    protected DcerpcBinding binding;
    protected int max_xmit = 4280;
    protected int max_recv = max_xmit;
    protected int state = 0;
    protected DcerpcSecurityProvider securityProvider = null;
    private static int call_id = 1;

    public static DcerpcHandle getHandle(String url,

    /**
     * @param buf
     * @param off
     * @param length
     * @param direct
     * @return received bytes
     * @throws CIFSException
     * @throws IOException
     */
    int recv ( byte[] buf, int off, int length ) throws IOException;


    /**
     * @param buf
     * @param off
     * @param length
     * @param direct
     * @throws IOException
     */

                SmbPipeInputStream in = getInput();
                out.write(buf, off, length);
                return in.read(inB);
            }
        }
    }


    @Override
    public int recv ( byte[] buf, int off, int len ) throws IOException {
        return getInput().readDirect(buf, off, len);

    }


    @Override
    public void send ( byte[] buf, int off, int length ) throws IOException {

                }
                else if ( timeout ) {
                    log.debug("socket timeout in non peek state", ex);
                }
                else {
                    log.debug("recv failed", ex);
                }

                synchronized ( this ) {
                    try {
                        disconnect(!timeout, false);
                    }