From ebcc60faa34bbbd5e0f529abdafb5a3b42c7bbde Mon Sep 17 00:00:00 2001
From: 9cco <fredrik_krohg@hotmail.com>
Date: Sat, 26 Feb 2022 02:46:48 +0100
Subject: [PATCH] Improved regex as pr timetoexpire comment

---
 cloudflare-template.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cloudflare-template.sh b/cloudflare-template.sh
index 8f9e863..70e45a3 100644
--- a/cloudflare-template.sh
+++ b/cloudflare-template.sh
@@ -24,7 +24,7 @@ elif [[ $(command -v dig &> /dev/null; echo $?) ]]; then
     ip=$(dig +short myip.opendns.com @resolver1.opendns.com);
 fi
 
-if [[ ! $ip =~ [0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3} ]]; then
+if [[ ! $ip =~ ^([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\.([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\.([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\.([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])$ ]]; then
     logger -s "DDNS Updater: Failed to find a valid IP."
     exit 1
 fi