}

      @Override
      long mulMod(long a, long b, long m) {
        long aHi = a >>> 32; // < 2^31
        long bHi = b >>> 32; // < 2^31
        long aLo = a & 0xFFFFFFFFL; // < 2^32
        long bLo = b & 0xFFFFFFFFL; // < 2^32

        /*
         * a * b == aHi * bHi * 2^64 + (aHi * bLo + aLo * bHi) * 2^32 + aLo * bLo.
         *       == (aHi * bHi * 2^32 + aHi * bLo + aLo * bHi) * 2^32 + aLo * bLo

        buffer[bufferIndex + 2] = (byte) 0xFF;

        // Set fields with negative values (should be treated as unsigned)
        SMBUtil.writeInt4(-1, buffer, bufferIndex + 3); // Should be read as 0xFFFFFFFF
        SMBUtil.writeInt4(-100, buffer, bufferIndex + 7);
        SMBUtil.writeInt4(-1000, buffer, bufferIndex + 11);
        SMBUtil.writeInt4(0, buffer, bufferIndex + 15);

        // Assert
        assertNotNull(transPeekNamedPipe);
        assertEquals(TEST_PIPE_NAME, transPeekNamedPipe.name);
        assertEquals(0xFFFFFFFF, transPeekNamedPipe.timeout);
        assertEquals(6, transPeekNamedPipe.maxParameterCount);
        assertEquals(1, transPeekNamedPipe.maxDataCount);
        assertEquals((byte) 0x00, transPeekNamedPipe.maxSetupCount);

        // Prepare test data with maximum values
        byte[] buffer = new byte[50];
        int bufferIndex = 0;

        // Set maximum values
        int testCapabilities = 0xFFFFFFFF;
        byte[] testGuid = new byte[16];
        Arrays.fill(testGuid, (byte) 0xFF);
        int testSecurityMode = 0xFFFF;
        int testDialect = 0xFFFF;

        // Write to buffer

        @DisplayName("toString() should handle maximum values correctly")
        void testToStringMaxValues() {
            // Arrange
            rpc.uuid_t rpcUuid = new rpc.uuid_t();
            rpcUuid.time_low = 0xFFFFFFFF;
            rpcUuid.time_mid = (short) 0xFFFF;
            rpcUuid.time_hi_and_version = (short) 0xFFFF;
            rpcUuid.clock_seq_hi_and_reserved = (byte) 0xFF;
            rpcUuid.clock_seq_low = (byte) 0xFF;

        Hexdump.toHexChars(0, dst1, 0, 4);
        assertEquals("0000", new String(dst1));

        // Test with all F's
        char[] dst2 = new char[8];
        Hexdump.toHexChars(0xFFFFFFFF, dst2, 0, 8);
        assertEquals("FFFFFFFF", new String(dst2));

        // Test partial buffer update
        char[] dst3 = new char[6];
        java.util.Arrays.fill(dst3, 'Z');

      int count = 0;
      // originally was 2 * Math.log(...), making it try more times to avoid flakiness issues
      int maxCount = (int) (4 * Math.log(2 * keyBits * hashBits) + 1);
      while (same != 0xffffffff || diff != 0xffffffff) {
        int key1 = rand.nextInt();
        // flip input bit for key2
        int key2 = key1 ^ (1 << i);
        // get hashes
        int hash1 = function.hashInt(key1).asInt();

     */
    public static void writeUTime(final Configuration cfg, long t, final byte[] dst, final int dstIndex) {
        if (t == 0L || t == 0xFFFFFFFFFFFFFFFFL) {
            SMBUtil.writeInt4(0xFFFFFFFF, dst, dstIndex);
            return;
        }

        if (cfg.getLocalTimezone().inDaylightTime(new Date())) {
            // in DST
            if (cfg.getLocalTimezone().inDaylightTime(new Date(t))) {

                            : targetName.toUpperCase().getBytes(getOEMEncoding());
                } else {
                    flags &= 0xffffffff ^ NTLMSSP_REQUEST_TARGET;
                }
            }
            if (targetInformation != null) {
                flags |= NTLMSSP_NEGOTIATE_TARGET_INFO;

                final SmbComWriteResponse rsp = new SmbComWriteResponse(th.getConfig());
                th.send(new SmbComWrite(th.getConfig(), fh.getFid(), (int) (newLength & 0xFFFFFFFFL), 0, this.tmp, 0, 0), rsp,
                        RequestParam.NO_RETRY);
            }
        } catch (final CIFSException e) {
            throw SmbException.wrap(e);
        }
    }

    @Override