return false;
    }


    /**
     * @param request
     * @return
     */
    protected abstract int getResponseTimeout ( Request request );


    private void loop () {
        while ( this.thread == Thread.currentThread() ) {
            try {
                synchronized ( this.inLock ) {
                    Long key;
                    try {

                if ( ch == '[' ) {
                    String server = str.substring(mark, si).trim();
                    if ( server.length() == 0 ) {
                        // this can also be a v6 address within brackets, look ahead required
                        int nexts = str.indexOf('[', si + 1);
                        int nexte = str.indexOf(']', si);
                        if ( nexts >= 0 && nexte >= 0 && nexte == nexts - 1 ) {

            setChallenge(challengeBytes);
        }
        pos += 8;

        if ( targetNameOff < pos + 8 || input.length < pos + 8 ) {
            // no room for Context/Reserved
            return;
        }

        if ( !allZeros8(input, pos) ) {
            byte[] contextBytes = new byte[8];

        if ( host.indexOf('.') < 0 && host.toUpperCase(Locale.ROOT).equals(host) ) {
            // this is not too good, probably should better pass the address and check that it is a netbios one.
            // While we could look up the domain controller/KDC we cannot really make the java kerberos implementation
            // use a KDC of our choice.

        end = srcIndex + this.rDataLength;
        /*
         * Apparently readRDataWireFormat can return 0 if resultCode != 0 in
         * which case this will look indefinitely. Putting this else clause around
         * the loop might fix that. But I would need to see a capture to confirm.
         * if (resultCode != 0) {
         * srcIndex += rDataLength;
         * } else {
         */

        addrEntry = new NbtAddress[rDataLength / 6];
        end = srcIndex + rDataLength;
/* Apparently readRDataWireFormat can return 0 if resultCode != 0 in
which case this will look indefinitely. Putting this else clause around
the loop might fix that. But I would need to see a capture to confirm.
if (resultCode != 0) {
    srcIndex += rDataLength;
} else {
*/
        for( addrIndex = 0; srcIndex < end; addrIndex++ ) {

            if ((b = in.read()) == -1) return null;
            sbuf[35] = (byte)b;
        }

        key.mid = Encdec.dec_uint16le( sbuf, 34 ) & 0xFFFF;

        /* Unless key returned is null or invalid Transport.loop() always
         * calls doRecv() after and no one else but the transport thread
         * should call doRecv(). Therefore it is ok to expect that the data
         * in sbuf will be preserved for copying into BUF in doRecv().

     * the share and the ACL on the folder being shared.
     * Go to <i>Computer Management</i>
     * &gt; <i>System Tools</i> &gt; <i>Shared Folders</i> &gt; <i>Shares</i> and
     * look at the <i>Properties</i> for a share. You will see two tabs - one
     * for "Share Permissions" and another for "Security". These correspond to
     * the ACLs returned by <tt>getShareSecurity</tt> and <tt>getSecurity</tt>

                         * with node status so we need to check to make sure that
                         * the record type matches the question type and if not,
                         * loop around and try again.
                         */
                        if (response.received && request.questionType == response.recordType)
                            return;

                         * with node status so we need to check to make sure that
                         * the record type matches the question type and if not,
                         * loop around and try again.
                         */
                        if ( response.received && request.questionType == response.recordType )
                            return;