func (rc *ReadCloser) Close() error {
	return rc.f.Close()
}

// DataOffset returns the offset of the file's possibly-compressed
// data, relative to the beginning of the zip file.
//
// Most callers should instead use [File.Open], which transparently
// decompresses data and verifies checksums.
func (f *File) DataOffset() (offset int64, err error) {
	bodyOffset, err := f.findBodyOffset()
	if err != nil {

        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

	// Check that OpenRaw returns the correct byte segment
	rw, err := f.OpenRaw()
	if err != nil {
		t.Errorf("%v: OpenRaw error=%v", f.Name, err)
		return
	}
	start, err := f.DataOffset()
	if err != nil {
		t.Errorf("%v: DataOffset error=%v", f.Name, err)
		return
	}
	got, err := io.ReadAll(rw)
	if err != nil {
		t.Errorf("%v: OpenRaw ReadAll error=%v", f.Name, err)
		return
	}

                // 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 */

pkg archive/zip, func RegisterCompressor(uint16, Compressor)
pkg archive/zip, func RegisterDecompressor(uint16, Decompressor)
pkg archive/zip, method (*File) DataOffset() (int64, error)
pkg archive/zip, type Compressor func(io.Writer) (io.WriteCloser, error)
pkg archive/zip, type Decompressor func(io.Reader) io.ReadCloser
pkg bufio, method (*Reader) Reset(io.Reader)
pkg bufio, method (*Writer) Reset(io.Writer)
pkg compress/flate, method (*Writer) Reset(io.Writer)