From f7373b7c2ddd29879fbf2992fcd54bae1794fb55 Mon Sep 17 00:00:00 2001
From: "Fish (David B. Trout)" <fish@infidels.org>
Date: Tue, 24 Jan 2023 12:01:04 -0800
Subject: [PATCH] Show version and help if no arguments given

Closes #540
---
 impl.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/impl.c b/impl.c
index d8dd88e1d..afac6604a 100644
--- a/impl.c
+++ b/impl.c
@@ -835,6 +835,14 @@ int     rc;
     init_progname( argc, argv );
     init_sysblk_version_str_arrays( NULL );
 
+    if (argc < 2)
+    {
+        display_version( stdout, 0, NULL );
+        arghelp();
+        WRMSG( HHC02343, "S", 1 );
+        return 1;
+    }
+
     /* Initialize SETMODE and set user authority */
     SETMODE( INIT );