this.dataCount = Math.min(this.totalDataCount, available);
        }
        else {
            if ( this.getCommand() != SMB_COM_NT_TRANSACT ) {
                this.setCommand(SMB_COM_TRANSACTION_SECONDARY);
            }
            else {
                this.setCommand(SMB_COM_NT_TRANSACT_SECONDARY);
            }
            // totalParameterCount and totalDataCount are set ok from primary