Don't draw the taps if we never got a capture file.

There's nothing to draw.

Maybe we should also avoid it if we didn't get any packets.

Change-Id: If76f7909f78e66b7302d0ab2caa284ca36c43bfb
Reviewed-on: https://code.wireshark.org/review/32649
Reviewed-by: Guy Harris <guy@alum.mit.edu>

1 files changed, 6 insertions, 1 deletions

diff --git a/tshark.c b/tshark.c
index 67fa547793..2409bdf182 100644
--- a/tshark.c
+++ b/tshark.c
@@ -2212,7 +2212,12 @@ main(int argc, char *argv[])
     cfile.provider.frames = NULL;
   }
 
-  draw_tap_listeners(TRUE);
+  /*
+   * If we never got a capture file, don't draw the taps; we not only
+   * didn't capture any packets, we never even did any capturing.
+   */
+  if (cfile.filename != NULL)
+    draw_tap_listeners(TRUE);
   /* Memory cleanup */
   reset_tap_listeners();
   funnel_dump_all_text_windows();