IN6P_CONTROLOPTS
if (inp->inp_af == AF_INET6 && (inp->inp_flags & IN6P_CONTROLOPTS)) {
inp->inp_flags |= (oinp->inp_flags & IN6P_CONTROLOPTS);
if (inp->inp_flags & IN6P_CONTROLOPTS) {
if (last->inp_flags & IN6P_CONTROLOPTS ||
if (last->inp_flags & IN6P_CONTROLOPTS ||
if (last->inp_flags & IN6P_CONTROLOPTS ||
if (inp->inp_flags & IN6P_CONTROLOPTS ||