ss: return -1 if an unrecognized option was given

When getopt_long encounters an option which has not been registered, it
returns '?'. React upon that and call usage() instead of help() so ss
returns with a non-zero exit status.

Signed-off-by: Phil Sutter <phil@nwl.cc>

diff --git a/misc/ss.c b/misc/ss.c
index eca4aa35facc04e3f8e2897516fc22d42ef8dad3..a9ae85ec564e9b4a1371d650eda2cbdd7cb0f460 100644 (file)
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -3770,8 +3770,8 @@ int main(int argc, char *argv[])
                                exit(1);
                        break;
                case 'h':
-               case '?':
                        help();
+               case '?':
                default:
                        usage();
                }