K 10
svn:author
V 6
syrinx
K 8
svn:date
V 27
2009-09-07T16:00:33.352543Z
K 7
svn:log
V 415
When joining a multicast group, the inp_lookup_mcast_ifp call
does a KASSERT that the group address is multicast, so the
check if this is indeed true and eventually return a EINVAL if not,
should be done before calling inp_lookup_mcast_ifp. This fixes a kernel
crash when calling setsockopt (sock, IPPROTO_IP, IP_ADD_MEMBERSHIP,...)
with invalid group address.

Reviewed by:	bms
Approved by:	bms

MFC after:	3 days

END