On error, have capture_opts_trim_iface() return the exit status that

should be used (on success, have it return 0).  Exit with that exit
status; if the problem is that we couldn't get the interface list or if
there are no interfaces in that list, return 2, as that's not a
command-line syntax error.

svn path=/trunk/; revision=46108

1 files changed, 3 insertions, 2 deletions

diff --git a/dumpcap.c b/dumpcap.c
index 7f7fc40788..4602da345e 100644
--- a/dumpcap.c
+++ b/dumpcap.c
@@ -4673,9 +4673,10 @@ main(int argc, char *argv[])
      * "-L", "-d", and capturing act on a particular interface, so we have to
      * have an interface; if none was specified, pick a default.
      */
-    if (capture_opts_trim_iface(&global_capture_opts, NULL) == FALSE) {
+    status = capture_opts_trim_iface(&global_capture_opts, NULL);
+    if (status != 0) {
         /* cmdarg_err() already called .... */
-        exit_main(1);
+        exit_main(status);
     }
 
     /* Let the user know what interfaces were chosen. */