From f791ede66841242b95b9339162e7ccaaca9dcbc4 Mon Sep 17 00:00:00 2001
From: Pascal Bouquet <pascal@bouquet24.de>
Date: Sat, 19 Apr 2025 17:32:20 +0200
Subject: [PATCH] Show usage line when no arguments and no --me flag are
 provided

Previously, running chkip without any arguments attempted to resolve None
as a domain, resulting in misleading output like "No A record".

This commit adds a check to print the usage line if neither a domain nor
the --me flag is specified. This improves usability and makes the tool behave
more predictably when called without arguments.
---
 chkip.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/chkip.py b/chkip.py
index 58e78e3..0d79a73 100644
--- a/chkip.py
+++ b/chkip.py
@@ -216,6 +216,10 @@ def main():
     parser.add_argument("--me", action="store_true", help="Zeigt lokale & öffentliche IPs und prüft auf CGNAT")
     args = parser.parse_args()
 
+    if not args.me and not args.domain:
+        print(parser.format_usage().strip())
+        return
+
     if args.me:
         local_v4, public_v4, public_v6 = get_my_ip()
         result = {