From d268b1642084fb38ea813463d4087f3bda23a903 Mon Sep 17 00:00:00 2001
From: Matt Fleming <devpump@gmail.com>
Date: Tue, 15 Dec 2020 20:55:18 -0500
Subject: [PATCH] Fix wildcard certs for duckdns.

---
 dnsapi/dns_duckdns.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dnsapi/dns_duckdns.sh b/dnsapi/dns_duckdns.sh
index f0af2741..73dc3c41 100755
--- a/dnsapi/dns_duckdns.sh
+++ b/dnsapi/dns_duckdns.sh
@@ -96,7 +96,7 @@ dns_duckdns_rm() {
 _duckdns_get_domain() {
 
   # We'll extract the domain/username from full domain
-  _duckdns_domain="$(printf "%s" "$fulldomain" | _lower_case | _egrep_o '^(_acme-challenge\.)?[a-z0-9-]*\.duckdns\.org' | sed 's/^\(_acme-challenge\.\)\?\([a-z0-9-]*\)\.duckdns\.org/\2/')"
+  _duckdns_domain="$(printf "%s" "$fulldomain" | _lower_case | sed -n 's/^\([^.]\{1,\}\.\)*\([a-z0-9-]\{1,\}\)\.duckdns\.org$/\2/p;')"
 
   if [ -z "$_duckdns_domain" ]; then
     _err "Error extracting the domain."