send(new SmbComOpenAndX(unc, access, flags, null), response);
            f = response.fid;
        }

        return f;
    }

    void open(final int flags, final int access, final int attrs, final int options) throws SmbException {
        if (isOpen()) {
            return;
        }
        fid = open0(flags, access, attrs, options);
        opened = true;
        tree_num = tree.tree_num;