// 2 bytes for fileAttributes, 4 bytes for lastWriteTime, 4 bytes for fileSize
        byte[] buffer = new byte[20];
        // File Attributes: 0x0010 (Directory)
        buffer[0] = 0x10;
        buffer[1] = 0x00;
        // Last Write Time (UTime): A sample timestamp in milliseconds
        long sampleTimeMillis = 1672531200000L; // Represents a specific date in milliseconds

        assertEquals(0x0001, SmbConstants.FLAGS2_LONG_FILENAMES);
        assertEquals(0x0002, SmbConstants.FLAGS2_EXTENDED_ATTRIBUTES);
        assertEquals(0x0800, SmbConstants.FLAGS2_EXTENDED_SECURITY_NEGOTIATION);
        assertEquals(0x0004, SmbConstants.FLAGS2_SECURITY_SIGNATURES);
        assertEquals(0x4000, SmbConstants.FLAGS2_STATUS32);
        assertEquals(0x8000, SmbConstants.FLAGS2_UNICODE);
    }

    /**

        .putChar((char) 0x0101)
        .putChar((char) 0x0100)
        .putChar((char) 0x0000)
        .putChar((char) 0x0000);
    assertEquals(hashCode, hasher.hash().asLong());

    hasher = HASH_FN.newHasher();
    hasher.putBytes(new byte[] {0x01, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00});
    assertEquals(hashCode, hasher.hash().asLong());

    hasher = HASH_FN.newHasher();
    hasher.putLong(0x0000000001000101L);

    /**
     * SMB2 negotiate flag indicating signing is enabled
     */
    public static final int SMB2_NEGOTIATE_SIGNING_ENABLED = 0x0001;

    /**
     * SMB2 negotiate flag indicating signing is required
     */
    public static final int SMB2_NEGOTIATE_SIGNING_REQUIRED = 0x0002;

    /**
     * SMB 2.0.2 dialect (Windows Vista/Server 2008)
     */
    public static final int SMB2_DIALECT_0202 = 0x0202;

    /**

        checkVersionParsing("1.0.0.-SNAPSHOT", 0, 0, 0, 0, "1.0.0.-SNAPSHOT");
        checkVersionParsing("1..0-SNAPSHOT", 0, 0, 0, 0, "1..0-SNAPSHOT");
        checkVersionParsing("1.0.-SNAPSHOT", 0, 0, 0, 0, "1.0.-SNAPSHOT");
        checkVersionParsing(".1.0-SNAPSHOT", 0, 0, 0, 0, ".1.0-SNAPSHOT");

        checkVersionParsing("1.2.3.200705301630", 0, 0, 0, 0, "1.2.3.200705301630");

    void createOptionsAddedWhenLow() {
        // createOptions less than 0x0001 (i.e., 0) should be padded with 0x0040
        SmbComNTCreateAndX req = createRequest(0, 0);
        int actual = (int) getPrivateField(req, "createOptions");
        assertEquals(0x0040, actual, "createOptions should be padded with 0x0040");
    }

    @Test
    @DisplayName("addFlags0 combines flags correctly")
    void addFlags0() {

 */
internal object DnsRecordCodec {
  private const val SERVFAIL = 2
  private const val NXDOMAIN = 3
  const val TYPE_A = 0x0001
  const val TYPE_AAAA = 0x001c
  private const val TYPE_PTR = 0x000c
  private val ASCII = Charsets.US_ASCII

  fun encodeQuery(
    host: String,
    type: Int,
  ): ByteString =
    Buffer()
      .apply {

        // informationLevel (2 bytes, LE) -> 0x0104
        assertEquals((byte) 0x04, dst[4]);
        assertEquals((byte) 0x01, dst[5]);

        // resumeKey (4 bytes, LE)
        assertEquals((byte) 0xEF, dst[6]);
        assertEquals((byte) 0xCD, dst[7]);
        assertEquals((byte) 0xAB, dst[8]);
        assertEquals((byte) 0x89, dst[9]);

        // flags (2 bytes, LE) -> 0x0000
        assertEquals((byte) 0x00, dst[10]);

    assertEscaping(e, "%00", '\u0000'); // nul
    assertEscaping(e, "%7F", '\u007f'); // del
    assertEscaping(e, "%C2%80", '\u0080'); // xx-00010,x-000000
    assertEscaping(e, "%DF%BF", '\u07ff'); // xx-11111,x-111111
    assertEscaping(e, "%E0%A0%80", '\u0800'); // xxx-0000,x-100000,x-00,0000
    assertEscaping(e, "%EF%BF%BF", '\uffff'); // xxx-1111,x-111111,x-11,1111
    assertUnicodeEscaping(e, "%F0%90%80%80", '\uD800', '\uDC00');

                createDisposition = FILE_OPEN_IF;
            }
        } else {
            createDisposition = FILE_OPEN;
        }

        if ((createOptions & 0x0001) == 0) {
            this.createOptions = createOptions | 0x0040;
        } else {
            this.createOptions = createOptions;
        }
        impersonationLevel = 0x02; // As seen on NT :~)