closed      bool
	compressors map[uint16]Compressor
	comment     string

	// testHookCloseSizeOffset if non-nil is called with the size
	// of offset of the central directory at Close.
	testHookCloseSizeOffset func(size, offset uint64)
}

type header struct {
	*FileHeader
	offset uint64
	raw    bool
}

// NewWriter returns a new [Writer] writing a zip file to w.
func NewWriter(w io.Writer) *Writer {

        message[8] = 0x03;

        // LM Response (24 bytes at offset 64)
        message[12] = 24; // Length
        message[13] = 0;
        message[14] = 24; // Max Length
        message[15] = 0;
        message[16] = 64; // Offset
        message[17] = 0;
        message[18] = 0;
        message[19] = 0;

        // NT Response (24 bytes at offset 88)
        message[20] = 24; // Length
        message[21] = 0;

	if offset < 0 || length < 0 {
		return -1, errInvalidArgument
	}
	if offset+length > totalLength {
		return -1, errInvalidArgument
	}

	if length == 0 {
		return 0, nil
	}

	reader := newParallelReader(readers, e, offset, totalLength)
	if len(prefer) == len(readers) {

        SMBUtil.writeInt2(shareType, buffer, bufferIndex);
        bufferIndex += 2;

        // Write remark offset (4 bytes)
        int remarkOffset = shareNameSize + typeSize + offsetSize;
        SMBUtil.writeInt4(remarkOffset, buffer, bufferIndex);
        bufferIndex += 4;

        // Write remark at the calculated offset
        byte[] remarkBytes = remark.getBytes(StandardCharsets.US_ASCII);

        byte[] dst = new byte[200];

        int offset = 50;
        int length = name.writeWireFormat(dst, offset);

        // Check first byte at offset
        assertEquals(0x20, dst[offset]);

        // Check type encoding at correct offset
        assertEquals('C', dst[offset + 31]);
        assertEquals('A', dst[offset + 32]);

        assertTrue(length > 33);
    }

    @Test

    private void encodeSockaddr(byte[] buffer, int offset) {
        if (ipv6) {
            // IPv6 sockaddr_in6 structure
            writeInt2(buffer, offset, 23);  // AF_INET6
            writeInt2(buffer, offset + 2, 445);  // Port
            writeInt4(buffer, offset + 4, 0);  // Flow info
            System.arraycopy(address.getAddress(), 0, buffer, offset + 8, 16);
            writeInt4(buffer, offset + 24, 0);  // Scope ID
        } else {

        buffer[40] = 0x00;

        // Parameter offset (2 bytes)
        buffer[41] = 0x00;
        buffer[42] = 0x00;

        // Parameter displacement (2 bytes)
        buffer[43] = 0x00;
        buffer[44] = 0x00;

        // Data count (2 bytes)
        buffer[45] = 0x00;
        buffer[46] = 0x00;

        // Data offset (2 bytes)
        buffer[47] = 0x00;
        buffer[48] = 0x00;

    @DisplayName("writeAndXWireFormat without andx writes 0xFF and sentinel offset")
    void testWriteAndXWireFormatWithoutAndx() {
        DummyAndXBlock block = new DummyAndXBlock();
        byte[] buf = new byte[128];
        int n = block.writeAndXWireFormat(buf, 0);

        assertTrue(n > 0);
        // Common AndX header: command at +1, reserved at +2, offset at +3/+4

    }

    @Test
    @DisplayName("Should handle output buffer with offset")
    void testReadBytesWireFormatWithOutputOffset() throws Exception {
        // Given
        int offset = 100;
        byte[] largeOutputBuffer = new byte[1024];
        Smb2ReadResponse offsetResponse = new Smb2ReadResponse(mockConfig, largeOutputBuffer, offset);

        byte[] buffer = new byte[256];
        int bodyStart = 0;

        int offset = 64; // Start at offset to test proper indexing

        int written = request.writeBytesWireFormat(buffer, offset);

        // Verify bytes written
        assertEquals(24, written);

        // Verify structure size (should be 24)
        assertEquals(24, SMBUtil.readInt2(buffer, offset));

        // Verify Reserved1 (2 bytes at offset+2, should be 0)