Use event system to re-send query on new route. Tidies module boundaries.

src/forward.c

@@ -2130,6 +2130,25 @@ static struct frec *lookup_frec_by_sender(unsigned short id,
    
   return NULL;
 }
+ 
+/* Send query packet again, if we can. */
+void resend_query()
+{
+  if (daemon->srv_save)
+    {
+      int fd;
+      
+      if (daemon->srv_save->sfd)
+	fd = daemon->srv_save->sfd->fd;
+      else if (daemon->rfd_save && daemon->rfd_save->refcount != 0)
+	fd = daemon->rfd_save->fd;
+      else
+	return;
+      
+      while(sendto(fd, daemon->packet, daemon->packet_len, 0,
+		   &daemon->srv_save->addr.sa, sa_len(&daemon->srv_save->addr)) == -1 && retry_send()); 
+    }
+}
 
 /* A server record is going away, remove references to it */
 void server_gone(struct server *server)