in_ifinit
error = in_ifinit(ifp, ifatoia(ifa), &new_sin, &new_dst, 0);
error = in_ifinit(ifp, ifatoia(ifa), &new_sin, &new_dst, 0);
error = in_ifinit(ifp, ia, satocsin(ifreq_getaddr(cmd, ifr)),
error = in_ifinit(ifp, ia, NULL, NULL, 0);
error = in_ifinit(ifp, ia, &ifra->ifra_addr,
int in_ifinit(struct ifnet *, struct in_ifaddr *,