From c382af56a5adb8c75d45e35f5d32d0fe5fc14da8 Mon Sep 17 00:00:00 2001
From: Joel Beckmeyer <joel@beckmeyer.us>
Date: Wed, 8 Nov 2023 13:38:15 -0500
Subject: [PATCH] don't print erroneous IP version

---
 ddclient.in | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/ddclient.in b/ddclient.in
index c509aba..f8291f2 100755
--- a/ddclient.in
+++ b/ddclient.in
@@ -2603,7 +2603,9 @@ sub geturl {
     debug("server   = %s", $server);
     (my $_url = $url) =~ s%\?.*%?<redacted>%; #redact possible credentials
     debug("url      = %s", $_url);
-    debug("ip ver   = %s", $ipversion);
+    if ($ipversion != 0) {
+        debug("ip ver   = %s", $ipversion);
+    }
 
     if (!opt('exec')) {
         debug("skipped network connection");
@@ -2641,7 +2643,11 @@ sub geturl {
         verbose("RECEIVE:", "%s", $reply // "<undefined>");
         if (!$reply) {
             # don't include ${url} as that might expose login credentials
-            warning("curl cannot connect to %s://%s using IPv%s",${protocol},${server},$ipversion);
+            if ($ipversion != 0) {
+                warning("curl cannot connect to %s://%s using IPv%s",${protocol},${server},$ipversion);
+            } else {
+                warning("curl cannot connect to %s://%s",${protocol},${server});
+            }
         }
     }