dstIndex += 4;
        }
        SMBUtil.writeInt4(this.dataCount, dst, dstIndex);
        dstIndex += 4;
        SMBUtil.writeInt4(this.dataCount == 0 ? 0 : this.dataOffset, dst, dstIndex);
        dstIndex += 4;
        if (this.getCommand() == SMB_COM_NT_TRANSACT_SECONDARY) {
            SMBUtil.writeInt4(this.dataDisplacement, dst, dstIndex);
            dstIndex += 4;

                // overflow indicator normal for pipe
                final SmbComReadAndXResponse r = (SmbComReadAndXResponse) resp;
                int off = SMB1_HEADER_LENGTH;
                /* WordCount thru dataOffset always 27 */
                readn(this.in, buffer, 4 + off, 27);
                off += 27;
                resp.decode(buffer, 4);
                /* EMC can send pad w/o data */