Leave groups.

    https://github.com/thom311/libnl/blob/libnl3_2_25/lib/socket.c#L465

    Leaves the specified groups using the modern socket option. The list of groups has to terminated by 0.

    Positional arguments:
    sk -- Netlink socket (nl_sock class instance).
    group -- group identifier (integer).

    Returns:
    0 on success or a negative error code.

def nl_socket_drop_memberships(sk, *group):
    """Leave groups.

    https://github.com/thom311/libnl/blob/libnl3_2_25/lib/socket.c#L465

    Leaves the specified groups using the modern socket option. The list of groups has to terminated by 0.

    Positional arguments:
    sk -- Netlink socket (nl_sock class instance).
    group -- group identifier (integer).

    Returns:
    0 on success or a negative error code.
    """
    if sk.s_fd == -1:
        return -NLE_BAD_SOCK
    for grp in group:
        if not grp:
            break
        if grp < 0:
            return -NLE_INVAL
        try:
            sk.socket_instance.setsockopt(SOL_NETLINK, NETLINK_DROP_MEMBERSHIP, grp)
        except OSError as exc:
            return -nl_syserr2nlerr(exc.errno)
    return 0