Bryan Venteicher c19f98eb74 Check for mbuf copy failure when there are multiple multicast sockets
This partitular case is the only path where the mbuf could be NULL.
udp_append() checked for a NULL mbuf only after invoking the tunneling
callback. Our only in tree tunneling callback - SCTP - assumed a non
NULL mbuf, and it is a bit odd to make the callbacks responsible for
checking this condition.

This also reduces the differences between the IPv4 and IPv6 code.

MFC after:	1 month
2014-10-09 05:17:47 +00:00
..
2014-10-01 14:39:06 +00:00
2014-09-21 04:38:50 +00:00
In
2013-11-30 12:51:19 +00:00
2013-07-03 18:48:43 +00:00
2014-09-04 19:28:02 +00:00
2014-09-24 20:12:40 +00:00