/**
     * 
     */
    public static final int NEGATIVE_SESSION_RESPONSE = 0x83;
    static final int SESSION_RETARGET_RESPONSE = 0x84;
    static final int SESSION_KEEP_ALIVE = 0x85;

    static final int MAX_MESSAGE_SIZE = 0x0001FFFF;
    static final int HEADER_LENGTH = 4;


    static void writeInt2 ( int val, byte[] dst, int dstIndex ) {

        return this.pipe;
    }


    @Override
    public SmbTreeHandleImpl ensureTreeConnected () throws CIFSException {
        if ( this.treeHandle == null ) {
            // extra acquire to keep the tree alive
            this.treeHandle = this.pipe.ensureTreeConnected();
        }
        return this.treeHandle.acquire();
    }


    public String getUncPath () {
        return this.uncPath;
    }

    public static final int POSITIVE_SESSION_RESPONSE = 0x82; 
    public static final int NEGATIVE_SESSION_RESPONSE = 0x83; 
    static final int SESSION_RETARGET_RESPONSE = 0x84; 
    static final int SESSION_KEEP_ALIVE = 0x85; 

    static final int MAX_MESSAGE_SIZE = 0x0001FFFF;
    static final int HEADER_LENGTH = 4;

    static void writeInt2( int val, byte[] dst, int dstIndex ) {

     * @return random source to use
     */
    SecureRandom getRandom ();


    /**
     * 
     * 
     * Property <tt>jcifs.smb.client.dfs.ttl</tt> (int, default 300)
     * 
     * @return title to live, in seconds, for DFS cache entries
     */
    long getDfsTtl ();


    /**
     * 
     * Property <tt>jcifs.smb.client.dfs.strictView</tt> (boolean, default false)
     * 

        int n;
        do {
            if ((n = readn( in, sbuf, 0, 4 )) < 4)
                return null;
        } while (sbuf[0] == (byte)0x85);  /* Dodge NetBIOS keep-alive */
                                                   /* read smb header */
        if ((n = readn( in, sbuf, 4, 32 )) < 32)
            return null;
        if (log.level >= 4) {

     * this <code>SmbResource</code> is a traditional file or directory, it will
     * be queried for on the specified server as expected.
     *
     * @return <code>true</code> if the resource exists or is alive or
     *         <code>false</code> otherwise
     * @throws CIFSException
     */
    boolean exists () throws CIFSException;


    /**
     * Fetch a child resource
     * 
     * @param name

        do {
            if ( ( readn(this.in, this.sbuf, 0, 4) ) < 4 ) {
                return null;
            }
        }
        while ( this.sbuf[ 0 ] == (byte) 0x85 ); /* Dodge NetBIOS keep-alive */
        /* read smb header */
        if ( ( readn(this.in, this.sbuf, 4, SmbConstants.SMB1_HEADER_LENGTH) ) < SmbConstants.SMB1_HEADER_LENGTH ) {
            return null;
        }

            this.treeHandle.ensureDFSResolved();
            if ( this.transportContext.getConfig().isStrictResourceLifecycle() ) {
                // one extra share to keep the tree alive
                return this.treeHandle.acquire();
            }
            return this.treeHandle;
        }
        return this.treeHandle.acquire();
    }


    /**
     * @param context

                    return tot;
                }
            }

            switch( SessionServicePacket.readPacketType( in, header, 0 )) {
                case SessionServicePacket.SESSION_KEEP_ALIVE:
                    break;
                case SessionServicePacket.SESSION_MESSAGE:
                    bip = SessionServicePacket.readLength( header, 0 );
                    break;
                case -1:

            }
        }
    }


    /**
     * Use a exclusive connection for this tree
     * 
     * If an exclusive connection is used the caller must make sure that the tree handle is kept alive,
     * otherwise the connection will be disconnected once the usage drops to zero.
     * 
     * @param np
     *            whether to use an exclusive connection
     */
    void setNonPooled ( boolean np ) {