NAOEIFS
struct aoeif ifs[NAOEIFS];
e = ifp + NAOEIFS;
e = p + NAOEIFS;
if (ifp >= &t->ifs[NAOEIFS] || ifp->nd == NULL)
e = p + NAOEIFS;
e = t->ifs + NAOEIFS - 1;
for (ifp = t->ifs; ifp < &t->ifs[NAOEIFS]; ++ifp) {