rt_maskedcopy
rt_maskedcopy(dst, ndst, mask);
void rt_maskedcopy(struct sockaddr *, struct sockaddr *, struct sockaddr *);
rt_maskedcopy(&src->sa, &src->sa, &srcmask->sa);
rt_maskedcopy(&dst->sa, &dst->sa, &dstmask->sa);
rt_maskedcopy(&src->sa, &src->sa, &srcmask->sa);
rt_maskedcopy(&dst->sa, &dst->sa, &dstmask->sa);
rt_maskedcopy(dst, deldst, ifa->ifa_netmask);
void rt_maskedcopy(struct sockaddr *,