fill int
}

// reset scratch buffer
func (s *scratch) reset() { s.fill = 0 }

// bytes returns the written contents of scratch buffer
func (s *scratch) bytes() []byte { return s.data[0:s.fill] }

// grow scratch buffer
func (s *scratch) grow() {
	ndata := make([]byte, cap(s.data)*2)
	copy(ndata, s.data)
	s.data = ndata
}

// append single byte to scratch buffer
func (s *scratch) add(c byte) {

        // Group SID at offset 40
        buffer.position(40);
        buffer.put((byte) 0x01); // Revision
        buffer.put((byte) 0x01); // SubAuthorityCount
        buffer.put(new byte[] { 0, 0, 0, 0, 0, 2 }); // IdentifierAuthority
        buffer.putInt(0); // SubAuthority

        // DACL at offset 60
        buffer.position(60);
        buffer.put((byte) 0x02); // AclRevision

  }
  return commaFound
}

private fun Buffer.startsWith(prefix: Byte): Boolean = !exhausted() && this[0] == prefix

/**
 * Reads a double-quoted string, unescaping quoted pairs like `\"` to the 2nd character in each
 * sequence. Returns the unescaped string, or null if the buffer isn't prefixed with a
 * double-quoted string.
 */
@Throws(EOFException::class)
private fun Buffer.readQuotedString(): String? {

    /**
     * Create new TCP memory region
     *
     * @param buffer memory buffer
     * @param access access permissions (ignored for TCP)
     */
    public TcpMemoryRegion(ByteBuffer buffer, EnumSet<RdmaAccess> access) {
        super(buffer, access);
    }

    @Override
    public void invalidate() {
        // No real invalidation needed for TCP

        byte[] buffer = new byte[6];
        close.writeParameterWordsWireFormat(buffer, 0);
        // first two bytes encode fid 42
        assertEquals((byte) 42, buffer[0]);
        assertEquals((byte) 0, buffer[1]);
        // remaining 4 bytes should all be 0xFF according to writeUTime
        for (int i = 2; i < 6; i++) {
            assertEquals((byte) 0xFF, buffer[i], "byte %d should be 0xFF".formatted(i));

        throw new NoSuchFieldException("Field " + fieldName + " not found");
    }

    private String readNullTerminatedString(byte[] buffer, int offset) {
        int end = offset;
        while (end < buffer.length && buffer[end] != 0) {
            end++;
        }
        return new String(buffer, offset, end - offset);
    }

import kotlin.test.Test
import okhttp3.MediaType.Companion.toMediaType
import okhttp3.ResponseBody.Companion.toResponseBody
import okio.Buffer
import okio.BufferedSource
import okio.ByteString.Companion.decodeHex
import okio.ByteString.Companion.encodeUtf8
import okio.IOException
import okio.Source
import okio.buffer

class ResponseBodyTest {
  @Test
  fun sourceEmpty() {

        void testUnicodeStringEncodeNullBuffer() throws NdrException {
            // Given: A unicode string with null buffer
            rpc.unicode_string unicodeString = new rpc.unicode_string();
            unicodeString.length = (short) 0;
            unicodeString.maximum_length = (short) 0;
            unicodeString.buffer = null;

            assertEquals(8192L, SMBUtil.readInt8(buffer, 8)); // Offset
            assertArrayEquals(testFileId, Arrays.copyOfRange(buffer, 16, 32)); // File ID
            assertEquals(512, SMBUtil.readInt4(buffer, 32)); // Minimum count
            assertEquals(Smb2ReadRequest.SMB2_CHANNEL_NONE, SMBUtil.readInt4(buffer, 36)); // Channel
            assertEquals(1024, SMBUtil.readInt4(buffer, 40)); // Remaining bytes

                SmbComReadAndX readCmd = invocation.getArgument(0);
                SmbComReadAndXResponse response = invocation.getArgument(1);
                response.dataLength = 1;
                // The response buffer points to the internal tmp buffer
                if (response.b != null && response.off < response.b.length) {
                    response.b[response.off] = 42; // Return byte value 42
                }
                return null;