response.off += n;
        } while( len > 0 && n == r );

        return (int)(fp - start);
    }
/**
 * This stream class is unbuffered. Therefore this method will always
 * return 0 for streams connected to regular files. However, a 
 * stream created from a Named Pipe this method will query the server using a
 * "peek named pipe" operation and return the number of available bytes
 * on the server.
 */

    protected synchronized SmbFileHandleImpl ensureOpen () throws CIFSException {
        return this.handle.ensureOpen();
    }


    /**
     * This stream class is unbuffered. Therefore this method will always
     * return 0 for streams connected to regular files. However, a
     * stream created from a Named Pipe this method will query the server using a
     * "peek named pipe" operation and return the number of available bytes
     * on the server.

            // reads
            return (int) ( this.fp - start );
        }
    }


    /**
     * This stream class is unbuffered. Therefore this method will always
     * return 0 for streams connected to regular files. However, a
     * stream created from a Named Pipe this method will query the server using a
     * "peek named pipe" operation and return the number of available bytes

        private final OutputStream stream;

        private final OutputStream collector;

        public CacheStream(OutputStream stream, OutputStream collector) {
            this.stream = stream;
            this.collector = collector;
        }

        public void close() throws IOException {
            stream.close();
            collector.close();
        }

    };

    private static URLStreamHandlerFactory factory;

    /**
     * Sets the URL stream handler factory for the environment.  This
     * allows specification of the factory used in creating underlying
     * stream handlers.  This can be called once per JVM instance.
     *
     * @param factory The URL stream handler factory.
     */
    public static void setURLStreamHandlerFactory(

     * Writes b.length bytes from the specified byte array to this
     * file output stream.
     *
     * @throws IOException
     *             if a network error occurs
     */

    @Override
    public void write ( byte[] b ) throws IOException {
        write(b, 0, b.length);
    }


    /**
     * @return whether the stream is open
     */
    public boolean isOpen () {

        ASN1Sequence authSequence;
        try {
            try ( ASN1InputStream stream = new ASN1InputStream(new ByteArrayInputStream(token)) ) {
                authSequence = ASN1Util.as(ASN1Sequence.class, stream);
            }
        }
        catch ( IOException e ) {
            throw new PACDecodingException("Malformed kerberos ticket", e);
        }

        }
    }

/**
 * Closes this output stream and releases any system resources associated
 * with it.
 *
 * @throws IOException if a network error occurs
 */

    public void close() throws IOException {
        file.close();
        tmp = null;
    }

/**
 * Writes the specified byte to this file output stream.
 *
 * @throws IOException if a network error occurs
 */

            throw new PACDecodingException("Empty kerberos ticket");

        ASN1Sequence sequence;
        try {
            try ( ASN1InputStream stream = new ASN1InputStream(new ByteArrayInputStream(token)) ) {
                sequence = ASN1Util.as(ASN1Sequence.class, stream);
            }
        }
        catch ( IOException e ) {
            throw new PACDecodingException("Malformed kerberos ticket", e);
        }

        ASN1InputStream stream = new ASN1InputStream(new ByteArrayInputStream(token));
        ASN1TaggedObject derToken;
        try {
            derToken = ASN1Util.as(ASN1TaggedObject.class, stream);
            if ( derToken.getTagClass() != BERTags.APPLICATION )
                throw new PACDecodingException("Malformed kerberos ticket");
            stream.close();
        }
        catch ( IOException e ) {