commit 19ce5022250da13f253443aa6900c2d1965db0ce
author Nathan Skrzypczak <nathan.skrzypczak@gmail.com> Mon Nov 23 17:56:32 2020 +0100
committer Dave Barach <openvpp@barachs.net> Mon Nov 23 19:08:09 2020 +0000
tree d8ac6a87f6463651f03d3d3f302838826638ae2c
parent 2cdb301678b3ba26331a9bc63ca1ab7af131e281

vlib: Fix sh int addr

format_l2_input might return s=0 which
causes vlib_cli_output to print weird
things when calling sh int addr

Type: fix

Change-Id: I3fe747979355e41aed51656f3b44e0eb76d33ef9
Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>

src/vlib/cli.c

diff --git a/src/vlib/cli.c b/src/vlib/cli.c
index a88bd3a..68f16fc 100644
--- a/src/vlib/cli.c
+++ b/src/vlib/cli.c
@@ -703,6 +703,11 @@
   s = va_format (0, fmt, &va);
   va_end (va);
 
+  /* some format functions might return 0
+   * e.g. show int addr */
+  if (NULL == s)
+    return;
+
   /* Terminate with \n if not present. */
   if (vec_len (s) > 0 && s[vec_len (s) - 1] != '\n')
     vec_add1 (s, '\n');