When the pim_nexthop_lookup fails, close the opened fd
as part of the failure condition.
Additionally pim_nexthop_lookup assumes that we've
actually already looked up a nexthop in the past.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is the implementation of weak multicast traceroute.
It consists of IGMP module dealing with mtrace type IGMP messages
and client program mtrace/mtracebis for initiating mtrace queries.
Signed-off-by: Mladen Sablic <mladen.sablic@gmail.com>
