final int start = bufferIndex;
        isLoggedInAsGuest = ((buffer[bufferIndex] & 0x01) == 0x01) == true;
        bufferIndex += 2;
        if (extendedSecurity) {
            final int blobLength = readInt2(buffer, bufferIndex);
            bufferIndex += 2;
            blob = new byte[blobLength];
        }
        return bufferIndex - start;
    }

    @Override

        // CurrentLeaseState (4 bytes)
        this.currentLeaseState = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        // NewLeaseState (4 bytes)
        this.newLeaseState = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        // BreakReason (4 bytes)
        this.breakReason = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        this.allow = buf[bi] == (byte) 0x00;
        bi++;
        this.flags = buf[bi++] & 0xFF;
        final int size = SMBUtil.readInt2(buf, bi);
        bi += 2;
        this.access = SMBUtil.readInt4(buf, bi);
        bi += 4;
        this.sid = new SID(buf, bi);
        return size;
    }

    void appendCol(final StringBuffer sb, final String str, final int width) {

        ServerMessageBlock.writeInt2(0x1234, buffer, 0);
        assertEquals(0x1234, ServerMessageBlock.readInt2(buffer, 0));
    }

    @Test
    void testInt4ReadWrite() {
        byte[] buffer = new byte[4];
        ServerMessageBlock.writeInt4(0x12345678, buffer, 0);
        assertEquals(0x12345678, ServerMessageBlock.readInt4(buffer, 0));
    }

    @Test
    void testInt8ReadWrite() {
        byte[] buffer = new byte[8];

        assertEquals(smbComNtTransaction.dataOffset, SmbComTransaction.readInt4(dst, 31), "dataOffset should be written correctly");
        assertEquals(smbComNtTransaction.setupCount, dst[35], "setupCount should be written correctly");
        assertEquals(smbComNtTransaction.function, SmbComTransaction.readInt2(dst, 36), "function should be written correctly");
    }

    @Test

        System.arraycopy(buffer, offset, keyBytes, 0, 16);
        this.leaseKey = new Smb2LeaseKey(keyBytes);
        
        this.leaseState = readInt4(buffer, offset + 16);
        this.leaseFlags = readInt4(buffer, offset + 20);
        this.leaseDuration = readInt8(buffer, offset + 24);
        
        if (length >= 52) {  // V2 lease
            byte[] parentKeyBytes = new byte[16];

        final int inputOffset = SMBUtil.readInt4(buffer, bufferIndex) + getHeaderStart();
        bufferIndex += 4;

        final int inputCount = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        final int outputOffset = SMBUtil.readInt4(buffer, bufferIndex) + getHeaderStart();
        bufferIndex += 4;

        final int outputCount = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

            // Remaining bytes stay zero-filled
        }
    }

    private static InetAddress parseSockaddr(byte[] data, int offset) {
        try {
            int family = SMBUtil.readInt2(data, offset);
            if (family == 2) { // AF_INET
                byte[] addr = new byte[4];
                System.arraycopy(data, offset + 4, addr, 0, 4);
                return InetAddress.getByAddress(addr);

        assertEquals(65536, serverData.maxRawSize);
        assertEquals(123456789, serverData.sessionKey);
        assertEquals(SmbConstants.CAP_UNICODE | SmbConstants.CAP_NT_SMBS, serverData.capabilities);
        // readInt2 returns unsigned value, so -480 becomes 65056
        assertEquals(65056, serverData.serverTimeZone);
        assertEquals(8, serverData.encryptionKeyLength);
    }

    @Test

    int decode(final byte[] buf, int bi) {
        allow = buf[bi] == (byte) 0x00;
        bi++;
        flags = buf[bi++] & 0xFF;
        final int size = ServerMessageBlock.readInt2(buf, bi);
        bi += 2;
        access = ServerMessageBlock.readInt4(buf, bi);
        bi += 4;
        sid = new SID(buf, bi);
        return size;
    }

    void appendCol(final StringBuffer sb, final String str, final int width) {