Nest: Assumption in rt-show for not-so-intuitive invariant.

1 files changed, 6 insertions, 0 deletions

diff --git a/nest/rt-show.c b/nest/rt-show.c
index 3431293a..bd0df9ee 100644
--- a/nest/rt-show.c
+++ b/nest/rt-show.c
@@ -104,6 +104,12 @@ rt_show_net(struct cli *c, net *n, struct rt_show_data *d)
   rte *e, *ee;
   byte ia[NET_MAX_TEXT_LENGTH+1];
   struct channel *ec = d->tab->export_channel;
+
+  /* The Clang static analyzer complains that ec may be NULL.
+   * It should be ensured to be not NULL by rt_show_prepare_tables() */
+  if (d->export_mode)
+    ASSUME(ec);
+
   int first = 1;
   int pass = 0;