} catch (IOException ex) { }
        return connection.getContentEncoding();
    }

    public long getExpiration() {
        try {
            handshake();
        } catch (IOException ex) { }
        return connection.getExpiration();
    }

    public long getDate() {
        try {
            handshake();
        } catch (IOException ex) { }
        return connection.getDate();

            ipad[i] = IPAD;
            opad[i] = OPAD;
        }
        try {
            md5 = MessageDigest.getInstance("MD5");
        } catch (Exception ex) {
            throw new IllegalStateException(ex.getMessage());
        }
        engineReset();
    }

    private HMACT64(HMACT64 hmac) throws CloneNotSupportedException {
        super("HMACT64");
        this.ipad = hmac.ipad;

                }
            } catch( Exception ex ) {
                String msg = ex.getMessage();
                boolean timeout = msg != null && msg.equals( "Read timed out" );
                /* If just a timeout, try to disconnect gracefully
                 */
                boolean hard = timeout == false;

                if (!timeout && log.level >= 3)
                    ex.printStackTrace( log );

                try {

                        doRecv(response);
                        response.received();
                    }
                }
            }
            catch ( Exception ex ) {
                String msg = ex.getMessage();
                boolean timeout = ( ex instanceof SocketTimeoutException ) || msg != null && msg.equals("Read timed out");
                boolean closed = msg != null && msg.equals("Socket closed");

                        } catch (Exception ex) { }
                        if (handlerClass == null) {
                            handlerClass = ClassLoader.getSystemClassLoader(
                                    ).loadClass(className);
                        }
                        handler = (URLStreamHandler) handlerClass.newInstance();
                    } catch (Exception ex) { }
                    if (handler != null) break;

        try {
            digest = MessageDigest.getInstance("MD5");
        } catch (NoSuchAlgorithmException ex) {
            if( log.level > 0 )
                ex.printStackTrace( log );
            throw new SmbException( "MD5", ex );
        }

        this.macSigningKey = macSigningKey;
        this.bypass = bypass;
        this.updates = 0;
        this.signSequence = 0;

    }


    @Override
    public Object clone () {
        try {
            return new HMACT64(this);
        }
        catch ( CloneNotSupportedException ex ) {
            throw new IllegalStateException(ex.getMessage());
        }
    }


    @Override
    protected byte[] engineDigest () {
        byte[] digest = this.md5.digest();
        this.md5.update(this.opad);

                        try {
                            handlerClass = Class.forName(className);
                        }
                        catch ( Exception ex ) {
                            log.debug("Failed to load handler class " + className, ex);
                        }
                        if ( handlerClass == null ) {
                            handlerClass = ClassLoader.getSystemClassLoader().loadClass(className);

            } catch (IOException ex) { }
        }
        int domainLength = domain.length;
        byte[] server = new byte[0];
        try {
            String host = NbtAddress.getLocalHost().getHostName();
            if (host != null) {
                try {
                    server = host.getBytes(UNI_ENCODING);
                } catch (IOException ex) { }
            }

                uee.printStackTrace( log );
        }
        MD4 md4 = new MD4();
        md4.update( uni );
        try {
            md4.digest(p21, 0, 16);
        } catch (Exception ex) {
            if( log.level > 0 )
                ex.printStackTrace( log );
        }
        E( p21, challenge, p24 );
        return p24;
    }

    /**
     * Creates the LMv2 response for the supplied information.
     *