From bdfca2dca2b34cd2a4b2baee4d6053bc68cf7b70 Mon Sep 17 00:00:00 2001
From: Pekka Helenius <fincer89@hotmail.com>
Date: Wed, 7 Apr 2021 09:59:43 +0300
Subject: [PATCH] Match an actual IPv4 address

---
 ssmtp_conf-sample/wanchecker.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ssmtp_conf-sample/wanchecker.sh b/ssmtp_conf-sample/wanchecker.sh
index 385437d..316b387 100755
--- a/ssmtp_conf-sample/wanchecker.sh
+++ b/ssmtp_conf-sample/wanchecker.sh
@@ -204,7 +204,7 @@ function checkWANIP {
     fi
 
     if [[ $(cat "${WANIP_LOG}" | wc -l) -gt 1 ]] ; then
-      local WANIP_OLD=$(tail -1 "${WANIP_LOG}" | awk '{print $2}')
+      local WANIP_OLD=$(tail -1 "${WANIP_LOG}" | grep -oE '([0-9]{2,3}\.){3}([0-9]{2,3})')
     fi
 
     if [[ ${WANIP_OLD} == "" ]]; then