in6_joingroup
if ((error = in6_joingroup(ifp, &in6, NULL, &im6f[0]->im6f_in6m, 0)) != 0) {
if ((error = in6_joingroup(ifp, &in6, NULL, &im6f[1]->im6f_in6m, 0)) != 0) {
error = in6_joingroup(ifp, &mltaddr, NULL, &inm, 0);
error = in6_joingroup(ifp, mcaddr, NULL, &imm->i6mm_maddr, delay);
int in6_joingroup(struct ifnet *, const struct in6_addr *,
if ((error = in6_joingroup(ifp, &syncpeer_sa6->sin6_addr, NULL,