rtioctl
static void rtioctl(struct in_addr addr, int op);
rtioctl(addr, SIOCADDRT);
rtioctl(addr, SIOCDELRT);
rtioctl(action, k->k_dst, k->k_gate, k->k_mask, k->k_ifp,
if (rc = rtioctl(tiptr, SIOCADDRT,
static int rtioctl(TIUSER *, int, struct rtentry *);
if ((rc = rtioctl(tiptr, SIOCADDRT, &rtentry)) != 0) {
if (rc = rtioctl(tiptr, SIOCADDRT, &rtentry)) {