bufferIndex += 16;

        final int inputOffset = SMBUtil.readInt4(buffer, bufferIndex) + getHeaderStart();
        bufferIndex += 4;

        final int inputCount = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        final int outputOffset = SMBUtil.readInt4(buffer, bufferIndex) + getHeaderStart();
        bufferIndex += 4;

        final int outputCount = SMBUtil.readInt4(buffer, bufferIndex);

        final int securityBufferLength = SMBUtil.readInt2(buffer, bufferIndex + 2);
        bufferIndex += 4;

        final int pad = bufferIndex - (getHeaderStart() + securityBufferOffset);
        this.blob = new byte[securityBufferLength];
        System.arraycopy(buffer, getHeaderStart() + securityBufferOffset, this.blob, 0, securityBufferLength);
        bufferIndex += pad;
        bufferIndex += securityBufferLength;

        if (structureSize != 9) {
            throw new SMBProtocolDecodingException("Expected structureSize = 9");
        }

        final int bufferOffset = SMBUtil.readInt2(buffer, bufferIndex + 2) + getHeaderStart();
        bufferIndex += 4;
        final int len = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        int elemStart = bufferOffset;

        if (this.inputBuffer == null) {
            SMBUtil.writeInt2(0, dst, inBufferOffsetOffset);
            SMBUtil.writeInt4(0, dst, inBufferLengthOffset);
        } else {
            SMBUtil.writeInt2(dstIndex - getHeaderStart(), dst, inBufferOffsetOffset);
            final int len = this.inputBuffer.encode(dst, dstIndex);
            SMBUtil.writeInt4(len, dst, inBufferLengthOffset);
            dstIndex += len;
        }

        if (structureSize != 9) {
            throw new SMBProtocolDecodingException("Expected structureSize = 9");
        }

        final int bufferOffset = SMBUtil.readInt2(buffer, bufferIndex + 2) + getHeaderStart();
        bufferIndex += 4;
        final int bufferLength = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        final Decodable i = createInformation(this.expectInfoType, this.expectInfoClass);

        dstIndex += 4; // createContextOffset
        final int createContextLengthOffset = dstIndex;
        dstIndex += 4; // createContextLength

        SMBUtil.writeInt2(dstIndex - getHeaderStart(), dst, nameOffsetOffset);

        System.arraycopy(nameBytes, 0, dst, dstIndex, nameBytes.length);
        if (nameBytes.length == 0) {
            // buffer must contain at least one byte
            dstIndex++;

        bufferIndex += 4;

        if (createContextOffset > 0 && createContextLength > 0) {
            final List<CreateContextResponse> contexts = new LinkedList<>();
            int createContextStart = getHeaderStart() + createContextOffset;
            int next = 0;
            do {
                int cci = createContextStart;
                next = SMBUtil.readInt4(buffer, cci);
                cci += 4;

            // Verify data offset is written correctly
            int dataOffsetValue = SMBUtil.readInt2(buffer, headerStart + 2);
            assertEquals(headerStart - 0 + 48, dataOffsetValue); // Assuming getHeaderStart() returns 0

            // Verify data is copied
            assertArrayEquals(data, Arrays.copyOfRange(buffer, headerStart + 48, headerStart + 48 + data.length));

            // Verify total bytes written

        return this.errorContextCount;
    }

    /**
     * Gets the header start position for this message.
     *
     * @return the headerStart
     */
    public final int getHeaderStart() {
        return this.headerStart;
    }

    /**
     * Gets the total length of this message.
     *
     * @return the length
     */
    public final int getLength() {