* Set bufferIndex according to andxOffset
             */

            bufferIndex = this.headerStart + this.andxOffset;

            this.andx.headerStart = this.headerStart;
            this.andx.setCommand(this.andxCommand);
            this.andx.setErrorCode(getErrorCode());
            this.andx.setFlags(getFlags());
            this.andx.setFlags2(getFlags2());
            this.andx.setTid(getTid());

                response = sendComTransaction(request, response, params);
            } else {
                if (response != null) {
                    response.setCommand(request.getCommand());
                }
                response = sendrecv(request, response, params);
            }
        } catch (final SmbException se) {
            throw se;

     */
    public boolean isAsync() {
        return this.async;
    }

    /**
     * @param command
     *            the command to set
     */
    @Override
    public final void setCommand(final int command) {
        this.command = command;
    }

    /**
     * Gets the tree identifier for this message.
     *
     * @return the treeId
     */
    public final int getTreeId() {

    private static void checkRequest(final SmbTransportImpl transport, final ServerMessageBlock request, final String svc)
            throws SmbException {
        if (!"A:".equals(svc)) {
            switch (request.getCommand()) {
            case ServerMessageBlock.SMB_COM_OPEN_ANDX:
            case ServerMessageBlock.SMB_COM_NT_CREATE_ANDX:
            case ServerMessageBlock.SMB_COM_READ_ANDX: