IP options broken for raw sockets on cred downgrade (was: Re: why required root privileges to set multicast options now?)

[Christian S.J. Peron]

First off, allow me to apologize for the delay, I have been away
for Thanks giving weekend. This patch looks like it fixes most
of the problems. I should have thought of this when I committed
the credential checks, sorry about that! 

I am testing this patch right now, and I will report any success
failures I experience.

-- 
Christian S.J. Peron
csjp at FreeBSD.ORG
FreeBSD Committer