From c27363f566274a65067d7559f9669f300f957183 Mon Sep 17 00:00:00 2001
From: Rich Salz <rsalz@openssl.org>
Date: Sun, 20 Aug 2017 17:10:48 -0400
Subject: Check # of arguments for remaining commands.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4201)
---
 apps/version.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'apps/version.c')

diff --git a/apps/version.c b/apps/version.c
index c9727daf52..57b9fd663f 100644
--- a/apps/version.c
+++ b/apps/version.c
@@ -72,6 +72,7 @@ int version_main(int argc, char **argv)
         switch (o) {
         case OPT_EOF:
         case OPT_ERR:
+opthelp:
             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
             goto end;
         case OPT_HELP:
@@ -107,6 +108,10 @@ int version_main(int argc, char **argv)
             break;
         }
     }
+    if (opt_num_rest() != 0) {
+        BIO_printf(bio_err, "Extra parameters given.\n");
+        goto opthelp;
+    }
     if (!dirty)
         version = 1;
 
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