break;
            case ServerMessageBlock.SMB_COM_TRANSACTION:
            case ServerMessageBlock.SMB_COM_TRANSACTION2:
                switch (((SmbComTransaction) request).getSubCommand() & 0xFF) {
                case SmbComTransaction.NET_SHARE_ENUM:
                case SmbComTransaction.NET_SERVER_ENUM2:
                case SmbComTransaction.NET_SERVER_ENUM3:

        this.txn_buf = null;
        return buf;
    }

    /**
     * Gets the transaction subcommand
     * @return the subCommand
     */
    public final byte getSubCommand() {
        return this.subCommand;
    }

    /**
     * Sets the transaction subcommand
     * @param subCommand
     *            the subCommand to set
     */