rd_delete
int rd_delete(struct sockaddr *, struct sockaddr *,
rval = rd_delete(r->rd_route,
rd_delete(rd->rd_route, rd->rd_mask, rh, &dummy);
if (rd_delete(SA(&addr), SA(&mask), _this->npppd->rd, &rtent) == 0) {
if ((rval = rd_delete((struct sockaddr *)&addr,