Rewrite bits of the multicast handling code as it should be. The handling of the IFF_ALLMULTI flag is wrong and the bcmp based range checking shouldn't be there.
Rewrite bits of the multicast handling code as it should be.
The handling of the IFF_ALLMULTI flag is wrong and the bcmp based range
checking shouldn't be there.

From Brad

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars