stf_getin4addr
if (stf_getin4addr(sc_cur, &sin4,
static struct sockaddr_in *stf_getin4addr(struct stf_softc *,
if (stf_getin4addr(sc, &sin4addr, addr6, mask6) == NULL)
if (stf_getin4addr(sc, &sin4, addr6, mask6) == NULL)
else if (stf_getin4addr(sc, &src4, addr6, mask6) == NULL) {
out = stf_getin4addr(sc, sin, in6, mask6);