for ( Response response : this.response_map.values() ) {
                                response.error();
                            }
                        }
                        throw new IOException("end of stream");
                    }

                    Response response = this.response_map.get(key);
                    if ( response == null ) {

    }

    private int parseResponseCode() throws IOException {
        try {
            String response = connection.getHeaderField(0);
            int index = response.indexOf(' ');
            while (response.charAt(index) == ' ') index++;
            return Integer.parseInt(response.substring(index, index + 3));
        } catch (Exception ex) {
            throw new IOException(ex.getMessage());
        }

            hmac = new HMACT64(hmac.digest());
            hmac.update(challenge);
            hmac.update(clientChallenge);
            hmac.digest(response, 0, 16);
            System.arraycopy(clientChallenge, 0, response, 16, 8);
            return response;
        } catch (Exception ex) {
            if( log.level > 0 )
                ex.printStackTrace( log );
            return null;
        }
    }

        }
    }


    /**
     * 
     * {@inheritDoc}
     *
     * @see jcifs.internal.SmbNegotiationResponse#setupResponse(jcifs.util.transport.Response)
     */
    @Override
    public void setupResponse ( Response resp ) {
        if ( ! ( resp instanceof ServerMessageBlock ) ) {
            return;
        }
        ( (ServerMessageBlock) resp ).setUseUnicode(this.useUnicode);
    }

                            ServerMessageBlock response ) throws SmbException {
synchronized (transport()) {
        if( response != null ) {
            response.received = false;
        }

        expiration = System.currentTimeMillis() + SmbTransport.SO_TIMEOUT;
        sessionSetup( request, response );
        if( response != null && response.received ) {
            return;
        }

    }

    /**
     * Returns the LanManager/LMv2 response.
     *
     * @return A <code>byte[]</code> containing the LanManager response.
     */
    public byte[] getLMResponse() {
        return lmResponse;
    }

    /**
     * Sets the LanManager/LMv2 response for this message.
     *
     * @param lmResponse The LanManager response.
     */
    public void setLMResponse(byte[] lmResponse) {

    }


    /**
     * Creates a Type-2 message in response to the given Type-1 message
     * using default values from the current environment.
     * 
     * @param tc
     *            context to use
     * @param type1
     *            The Type-1 message which this represents a response to.
     */
    public Type2Message ( CIFSContext tc, Type1Message type1 ) {

              SmbTreeHandleImpl th = fd.getTree() ) {

            /*
             * Read AndX Request / Response
             */

            if ( log.isTraceEnabled() ) {
                log.trace("read: fid=" + fd + ",off=" + off + ",len=" + len);
            }

            SmbComReadAndXResponse response = new SmbComReadAndXResponse(th.getConfig(), b, off);

            int type = this.file.getType();

     */
    @Override
    public void doFilter ( ServletRequest request, ServletResponse response, FilterChain chain ) throws IOException, ServletException {
        HttpServletRequest req = (HttpServletRequest) request;
        HttpServletResponse resp = (HttpServletResponse) response;
        NtlmPasswordAuthentication ntlm;

        if ( ( ntlm = negotiate(req, resp, false) ) == null ) {

                }
                // == 5*128 = 640

                // . and .. entries = 200 byte (includes alignment)

                // + 64 byte header
                // + 8 byte query response overhead
                // + 110 bytes entry
                // -> 1022 predicted message size <= 1023 maximum buffer size
                // 112 bytes to alignment