inp_moptions
ip_freemoptions(inp->inp_moptions);
struct ip_moptions *mopts = inp->inp_moptions;
error = ip_getmoptions(optname, inp->inp_moptions, m);
error = ip_setmoptions(optname, &inp->inp_moptions, m,
inp->inp_moptions, &inp->inp_seclevel, 0);
(inp->inp_socket->so_options & SO_BROADCAST), inp->inp_moptions,