K 10 svn:author V 7 wollman K 8 svn:date V 27 1995-03-20T18:11:31.000000Z K 7 svn:log V 334 Fix race conditions involved in setting IP multicast options. This should fix Dennis Fortin's problem for good, if I've got it figured out right. (The problem was that a `struct ifaddr' could get deleted out from under the current requester, thus leaving him with an invalid interface pointer and causing even more bogus accesses.) END