writeInt4(parameterDisplacement, dst, dstIndex);
            dstIndex += 4;
        }
        writeInt4(dataCount, dst, dstIndex);
        dstIndex += 4;
        writeInt4(dataCount == 0 ? 0 : dataOffset, dst, dstIndex);
        dstIndex += 4;
        if (command == SMB_COM_NT_TRANSACT_SECONDARY) {
            writeInt4(dataDisplacement, dst, dstIndex);
            dstIndex += 4;

        SMBUtil.writeInt2(4, dst, dstIndex); // NameLength
        dstIndex += 2;

        SMBUtil.writeInt2(0, dst, dstIndex); // Reserved
        dstIndex += 2;

        SMBUtil.writeInt2(24, dst, dstIndex); // DataOffset (from start of context)
        dstIndex += 2;

        SMBUtil.writeInt4(52, dst, dstIndex); // DataLength
        dstIndex += 4;

        // Write context name

        SMBUtil.writeInt2(4, ctx, ci + 2); // NameLength
        ci += 4;
        // Reserved (2) + DataOffset (2)
        // Put data at offset 0x20
        SMBUtil.writeInt2(0, ctx, ci); // Reserved
        SMBUtil.writeInt2(0x20, ctx, ci + 2); // DataOffset
        ci += 4;
        SMBUtil.writeInt4(8, ctx, ci); // DataLength
        ci += 4;
        // Name bytes at 0x10

        SMBUtil.writeInt2(4, dst, dstIndex); // NameLength
        dstIndex += 2;

        SMBUtil.writeInt2(0, dst, dstIndex); // Reserved
        dstIndex += 2;

        SMBUtil.writeInt2(24, dst, dstIndex); // DataOffset (from start of context)
        dstIndex += 2;

        SMBUtil.writeInt4(32, dst, dstIndex); // DataLength
        dstIndex += 4;

        // Write context name

        SMBUtil.writeInt2(4, dst, dstIndex); // NameLength
        dstIndex += 2;

        SMBUtil.writeInt2(0, dst, dstIndex); // Reserved
        dstIndex += 2;

        SMBUtil.writeInt2(24, dst, dstIndex); // DataOffset (from start of context)
        dstIndex += 2;

        SMBUtil.writeInt4(STRUCTURE_SIZE, dst, dstIndex); // DataLength
        dstIndex += 4;

        // Write context name

            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;

        assertEquals(4, SMBUtil.readInt2(buffer, 6)); // NameLength
        assertEquals(0, SMBUtil.readInt2(buffer, 8)); // Reserved
        assertEquals(24, SMBUtil.readInt2(buffer, 10)); // DataOffset
        assertEquals(52, SMBUtil.readInt4(buffer, 12)); // DataLength

        // Verify context name
        byte[] nameBytes = new byte[4];
        System.arraycopy(buffer, 16, nameBytes, 0, 4);

        public void setDataCount(int value) {
            this.dataCount = value;
        }

        public int getDataOffset() {
            return dataOffset;
        }

        public void setDataOffset(int value) {
            this.dataOffset = value;
        }

        public int getDataDisplacement() {
            return dataDisplacement;
        }

                int off = HEADER_LENGTH;
                /* WordCount thru dataOffset always 27 */
                readn(in, BUF, 4 + off, 27);
                off += 27;
                resp.decode(BUF, 4);
                /* EMC can send pad w/o data */
                final int pad = r.dataOffset - off;
                if (r.byteCount > 0 && pad > 0 && pad < 4) {

        headerStartField.set(response, 0);

        // When
        int bytesRead = response.readBytesWireFormat(buffer, bodyStart);

        // Then
        // When dataLength is 0, it returns max(16, dataOffset + 0 - bodyStart) = max(16, 80) = 80
        assertEquals(80, bytesRead);
        assertEquals(0, response.getDataLength());
        assertEquals(0, response.getDataRemaining());
    }

    @Test