X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvlib%2Funix%2Fcli.c;h=b0ed9d2db143ae14668b4a346911770504ea85f6;hb=a6ef36b2c25de47824a1b45e147ab2fbf67c3a33;hp=0a8041e4ac4346b31562980bcf62928926ebde36;hpb=44476c6b271bdebb7458590398b5f140c9a7d353;p=vpp.git

diff --git a/src/vlib/unix/cli.c b/src/vlib/unix/cli.c
index 0a8041e4ac4..b0ed9d2db14 100644
--- a/src/vlib/unix/cli.c
+++ b/src/vlib/unix/cli.c
@@ -3089,9 +3089,11 @@ unix_cli_config (vlib_main_t * vm, unformat_input_t * input)
 	    clib_panic ("sigaction");
 
 	  /* Retrieve the current terminal size */
-	  ioctl (STDIN_FILENO, TIOCGWINSZ, &ws);
-	  cf->width = ws.ws_col;
-	  cf->height = ws.ws_row;
+	  if (ioctl (STDIN_FILENO, TIOCGWINSZ, &ws) == 0)
+	    {
+	      cf->width = ws.ws_col;
+	      cf->height = ws.ws_row;
+	    }
 
 	  if (cf->width == 0 || cf->height == 0)
 	    {
@@ -3328,7 +3330,7 @@ unix_cli_exec (vlib_main_t * vm,
   unformat_free (&sub_input);
 
 done:
-  if (fd > 0)
+  if (fd >= 0)
     close (fd);
   vec_free (file_name);