ospf6d: Have ospf6d cleanup when it terminates normally

A clean exit makes it easier to use memory debuggers.

* ospf6_asbr.c: (ospf6_asbr_terminate) Add a function to do route map
  cleanup.
* ospf6_lsa.c: (ospf6_lsa_terminate) Add a function to cleanup the lsa
  handler vector.
* ospf6_main.c: (ospf6_exit) Add an function that causes ospf6d to
  gracefully exit.
* ospf6_message.c: (ospf6_message_terminate) Add a function that frees
  the send and receive buffers.
* ospf6_top.c: (ospf6_delete) Enable the ospf6_delete() function.
  Disable ospf6 before freeing everything.

1 files changed, 18 insertions, 0 deletions

diff --git a/ospf6d/ospf6_message.c b/ospf6d/ospf6_message.c
index 790fc0ae..d06eba26 100644
--- a/ospf6d/ospf6_message.c
+++ b/ospf6d/ospf6_message.c
@@ -1168,6 +1168,24 @@ ospf6_iobuf_size (unsigned int size)
   return iobuflen;
 }
 
+void
+ospf6_message_terminate (void)
+{
+  if (recvbuf)
+    {
+      XFREE (MTYPE_OSPF6_MESSAGE, recvbuf);
+      recvbuf = NULL;
+    }
+
+  if (sendbuf)
+    {
+      XFREE (MTYPE_OSPF6_MESSAGE, sendbuf);
+      sendbuf = NULL;
+    }
+
+  iobuflen = 0;
+}
+
 int
 ospf6_receive (struct thread *thread)
 {