static final int RESOLVER_WINS = 3;

    private static final int SND_BUF_SIZE = Config.getInt("jcifs.smb1.netbios.snd_buf_size", DEFAULT_SND_BUF_SIZE);
    private static final int RCV_BUF_SIZE = Config.getInt("jcifs.smb1.netbios.rcv_buf_size", DEFAULT_RCV_BUF_SIZE);
    private static final int SO_TIMEOUT = Config.getInt("jcifs.smb1.netbios.soTimeout", DEFAULT_SO_TIMEOUT);

    /** Send buffer size in bytes */
    int SND_BUF_SIZE = Config.getInt("jcifs.smb1.smb.client.snd_buf_size", DEFAULT_SND_BUF_SIZE);
    /** Receive buffer size in bytes */
    int RCV_BUF_SIZE = Config.getInt("jcifs.smb1.smb.client.rcv_buf_size", DEFAULT_RCV_BUF_SIZE);
    /** Whether to use Unicode strings */
    boolean USE_UNICODE = Config.getBoolean("jcifs.smb1.smb.client.useUnicode", true);
    /** Whether to force Unicode usage */

    ServerData server = new ServerData();
    /* Negotiated values */
    int flags2 = FLAGS2;
    int maxMpxCount = MAX_MPX_COUNT;
    int snd_buf_size = SND_BUF_SIZE;
    int rcv_buf_size = RCV_BUF_SIZE;
    int capabilities = CAPABILITIES;
    int sessionKey = 0x00000000;
    boolean useUnicode = USE_UNICODE;
    String tconHostName = null;

    @BeforeEach
    void setUp() throws MalformedURLException, UnknownHostException, SmbException {
        // Mock the transport layer
        smbTransport = mock(SmbTransport.class);
        smbTransport.rcv_buf_size = 4096;
        smbTransport.snd_buf_size = 4096;

        // Mock the session layer
        smbSession = mock(SmbSession.class);
        smbSession.transport = smbTransport;

        // Mock the tree layer

    /**
     *
     * Property {@code jcifs.smb.client.rcv_buf_size} (int, default 65535)
     *
     * @return receive buffer size, in bytes
     * @deprecated use getReceiveBufferSize instead
     */
    @Deprecated
    int getRecieveBufferSize();

    /**
     *
     * Property {@code jcifs.smb.client.rcv_buf_size} (int, default 65535)
     *
     * @return receive buffer size, in bytes

        } else {
            throw new IllegalArgumentException("Invalid mode");
        }
        file.open(openFlags, access, SmbFile.ATTR_NORMAL, options);
        readSize = file.tree.session.transport.rcv_buf_size - 70;
        writeSize = file.tree.session.transport.snd_buf_size - 70;
        fp = 0L;
    }

    /**
     * Reads a single byte from the file at the current file pointer position.
     *

            this.openFlags &= ~(SmbFile.O_CREAT | SmbFile.O_TRUNC);
        } else {
            file.connect0();
        }
        readSize = Math.min(file.tree.session.transport.rcv_buf_size - 70, file.tree.session.transport.server.maxBufferSize - 70);
    }

    /**
     * Converts an SmbException to an IOException.
     *
     * @param se the SmbException to convert

        if (t1.snd_buf_size < t2.snd_buf_size) {
            t2.snd_buf_size = t1.snd_buf_size;
        } else {
            t1.snd_buf_size = t2.snd_buf_size;
        }

        bsize = Math.min(t1.rcv_buf_size - 70, t1.snd_buf_size - 70);
        b = new byte[2][bsize];

        try {
            copyTo0(dest, b, bsize, w, req, resp);
        } finally {
            w.write(null, -1, null, 0);
        }

        if (this.maxMpxCount < 1) {
            this.maxMpxCount = 1;
        }
        this.snd_buf_size = Math.min(this.snd_buf_size, this.server.maxBufferSize);
        this.recv_buf_size = Math.min(this.recv_buf_size, this.server.maxBufferSize);
        this.tx_buf_size = Math.min(this.tx_buf_size, this.server.maxBufferSize);

        this.capabilities &= this.server.scapabilities;