Merge quagga mainline into the google ISIS code.

The steps were:

  $ git checkout google-is-is
  $ git merge quagga
  $ git checkout google-is-is -- isisd

  # Resolve conflicts in the following:
  lib/md5.h
  zebra/rt_netlink.c
  zebra/zebra_rib.c
  zebra/zserv.c

Note that the content in the isisd directory is left unchanged in the
merge. As a result, changes made to isisd as part of the following
commits on the quagga mainline are dropped.

  # 8ced4e82 is the merge base, e96b3121 is the current quagga master
  $ git log --oneline --reverse 8ced4e82..e96b3121 -- isisd
  5574999 isisd: fix crash on "no router isis" (BZ#536)
  8998075 isisd: raise hello rate for DIS (BZ#539)
  306ca83 isisd: include hash.h, not hash.c
  b82cdeb delete CVS keywords
  2f65867 isisd: indent longopts array
  b511468 quagga: option "-z" ("--socket <path>") added
  05e54ee build: delete .cvsignore files
  b4e45f6 fix zebra protocol after MP-BGP changes
  7fd6cd8 isisd: fix circuit state machine
  907fd95 isisd: send proper LSP after DIS election
  d034aa0 isisd: fix wrong next-hops from SPF
  c25eaff isisd: unexpected kernel routing table (BZ#544)
  e6b03b7 isisd: implement MD5 circuit authentication

1 files changed, 4 insertions, 2 deletions

diff --git a/ospf6d/ospf6_abr.c b/ospf6d/ospf6_abr.c
index d38ef21a..c3a63fe6 100644
--- a/ospf6d/ospf6_abr.c
+++ b/ospf6d/ospf6_abr.c
@@ -555,7 +555,8 @@ ospf6_abr_examin_summary (struct ospf6_lsa *lsa, struct ospf6_area *oa)
       prefix.family = AF_INET6;
       prefix.prefixlen = prefix_lsa->prefix.prefix_length;
       ospf6_prefix_in6_addr (&prefix.u.prefix6, &prefix_lsa->prefix);
-      prefix2str (&prefix, buf, sizeof (buf));
+      if (is_debug)
+        prefix2str (&prefix, buf, sizeof (buf));
       table = oa->ospf6->route_table;
       type = OSPF6_DEST_TYPE_NETWORK;
       prefix_options = prefix_lsa->prefix.prefix_options;
@@ -574,7 +575,8 @@ ospf6_abr_examin_summary (struct ospf6_lsa *lsa, struct ospf6_area *oa)
       router_lsa = (struct ospf6_inter_router_lsa *)
         OSPF6_LSA_HEADER_END (lsa->header);
       ospf6_linkstate_prefix (router_lsa->router_id, htonl (0), &prefix);
-      inet_ntop (AF_INET, &router_lsa->router_id, buf, sizeof (buf));
+      if (is_debug)
+        inet_ntop (AF_INET, &router_lsa->router_id, buf, sizeof (buf));
       table = oa->ospf6->brouter_table;
       type = OSPF6_DEST_TYPE_ROUTER;
       options[0] = router_lsa->options[0];