private final InetAddress address;
        private final int flags;

        /** Flag indicating IPv4 address type */
        public static final int IPV4 = 0x01;
        /** Flag indicating IPv6 address type */
        public static final int IPV6 = 0x02;

        /**
         * Creates a new witness IP address.
         *
         * @param address the IP address
         */

        int written = trans2SetFileInfo.writeSetupWireFormat(buffer, 0);

        // Should write 2 bytes: subcommand and 0x00
        assertEquals(2, written);
        assertEquals(SmbComTransaction.TRANS2_SET_FILE_INFORMATION, buffer[0]);
        assertEquals(0x00, buffer[1]);
    }

    @Test
    @DisplayName("Test writeSetupWireFormat with offset")
    void testWriteSetupWireFormatWithOffset() {

     * @throws SmbException if an I/O error occurs
     */
    public int read() throws SmbException {
        if (read(tmp, 0, 1) == -1) {
            return -1;
        }
        return tmp[0] & 0xFF;
    }

    /**
     * Reads bytes from the file into the specified byte array.
     *
     * @param b the byte array to read data into
     * @return the number of bytes read, or -1 if end of file is reached

            (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, // NextCommand
            (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, // MessageId
            (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, // Reserved / AsyncId
            (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, // TreeId / AsyncId

     * implementation.
     */

    /** SMB2 negotiate protocol command */
    protected static final short SMB2_NEGOTIATE = 0x00;
    /** SMB2 session setup command */
    protected static final short SMB2_SESSION_SETUP = 0x01;
    /** SMB2 logoff command */
    protected static final short SMB2_LOGOFF = 0x02;
    /** SMB2 tree connect command */
    protected static final short SMB2_TREE_CONNECT = 0x0003;

        assertArrayEquals(expectedDescrBytes, actualDescrBytes);

        // Verify level (0x0001)
        int descrEnd = 2 + expectedDescrBytes.length;
        assertEquals(0x01, dst[descrEnd]);
        assertEquals(0x00, dst[descrEnd + 1]);

        // Verify maxDataCount (16384)
        assertEquals(16384, SMBUtil.readInt2(dst, descrEnd + 2));

        // Verify serverTypes

                0x01, 0x00, 0x00, 0x00, // unused
                0x02, 0x00, 0x00, 0x00, // used
                0x00, 0x00, // unused char
                0x41, 0x00, // 'A'
                0x42, 0x00 // 'B'
        };
        PacDataInputStream pdis = createInputStream(data);
        String str = pdis.readString();
        assertEquals("AB", str);
    }

    @Test

     */
    @Test
    void testReadParameterWordsWireFormat() {
        SmbComWriteAndXResponse response = new SmbComWriteAndXResponse();
        byte[] buffer = new byte[] { 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; // count = 10

        int bytesRead = response.readParameterWordsWireFormat(buffer, 0);

        // The count should be read from the buffer.
        assertEquals(10L, response.count);

        testBuffer[8] = 0x01; // Revision
        testBuffer[9] = 0x01; // Sub-authority count
        testBuffer[10] = 0x00; // Identifier authority
        testBuffer[11] = 0x00;
        testBuffer[12] = 0x00;
        testBuffer[13] = 0x00;
        testBuffer[14] = 0x00;
        testBuffer[15] = 0x01;
        testBuffer[16] = 0x00; // Sub-authority
        testBuffer[17] = 0x00;
        testBuffer[18] = 0x00;

 */
public class NameServiceClientImpl implements Runnable, NameServiceClient {

    private static final int NAME_SERVICE_UDP_PORT = 137;

    static final byte[] UNKNOWN_MAC_ADDRESS = { (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00 };

    private static final Logger log = LoggerFactory.getLogger(NameServiceClientImpl.class);

    private final Object LOCK = new Object();

    private int nbnsIndex = 0;