if_ok
extern void if_ok(struct interface *, const char *, boolean_t);
if_ok(ifp, "", _B_FALSE);
if_ok(ifp, "", _B_TRUE);
if_ok(ifp1, type, _B_FALSE);
if_ok(ifp, "remote ", _B_FALSE);
if_ok(ifp, "remote ", _B_FALSE);
if_ok(ifp, "remote ", _B_FALSE);