gracefully exit if the cmdline is bogus

Signed-off-by: John Crispin <blogic@openwrt.org>

diff --git a/main.c b/main.c
index 383eb9c..f559c19 100644 (file)
--- a/main.c
+++ b/main.c
@@ -65,6 +65,8 @@ main(int argc, char **argv)
                case 'i':
                        interface_add(optarg);
                        break;
+               default:
+                       return -1;
                }
        }