Check non-option arguments

Make sure all commands check to see if there are any "extra" arguments
after the options, and print an error if so.

Made all error messages consistent (which is to say, minimal).

Fixes: #13527

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13563)

1 files changed, 2 insertions, 0 deletions

diff --git a/apps/pkeyutl.c b/apps/pkeyutl.c
index 3146b1f684..a88a6ca7a3 100644
--- a/apps/pkeyutl.c
+++ b/apps/pkeyutl.c
@@ -250,6 +250,8 @@ int pkeyutl_main(int argc, char **argv)
             break;
         }
     }
+
+    /* No extra arguments. */
     argc = opt_num_rest();
     if (argc != 0)
         goto opthelp;