From c6bcfd46440671a7c00c47bd11c2c63e56719d5f Mon Sep 17 00:00:00 2001
From: Richard Hansen <rhansen@rhansen.org>
Date: Tue, 23 Jul 2024 00:58:11 -0400
Subject: [PATCH] porkbun: Quote interpolated variable in regex

---
 ddclient.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ddclient.in b/ddclient.in
index 59c86a2..daadf0d 100755
--- a/ddclient.in
+++ b/ddclient.in
@@ -6775,7 +6775,7 @@ sub nic_porkbun_update {
             if ($h eq $domain) {
                 $sub_domain = '';
             } else {
-                $sub_domain =~ s/\.$domain//;
+                $sub_domain =~ s/\.\Q$domain\E//;
             }
             if ($sub_domain eq $h) {
                 failed("'root-domain' (%s) is not part of the full host name (%s)!", $domain, $h);