From b1401c9a8c36b545ec076f77d250a690b814cf91 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Mon, 11 Dec 2017 10:32:23 +0100
Subject: update-ddns.in: "ignore $ipRegEx" new

---
 update-ddns.in | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/update-ddns.in b/update-ddns.in
index 0fe0495..ff589d8 100644
--- a/update-ddns.in
+++ b/update-ddns.in
@@ -20,6 +20,8 @@ then
   done
 fi
 
+unset ignoreIps
+
 i=0
 
 while read -r ipVer updateUrl dnsName
@@ -30,6 +32,12 @@ do
     continue
   fi
 
+  if [[ "${ipVer}" == 'ignore' ]]
+  then
+    ignoreIps="${ignoreIps} ${updateUrl} ${dnsName}"
+    continue
+  fi
+
   if [[ "${ipVer}" == *"?" ]]
   then
     ipVer="${ipVer%?}"
@@ -71,6 +79,20 @@ do
 
 done < #ETCDIR#/update-ddns.conf
 
+ignoreIps='^\('"$(
+  echo ${ignoreIps} | \
+    tr '[:space:]' '\n' | \
+    grep -vxF '' | \
+    sort -u | \
+    sed '
+      s@$@\\|@
+    ' | \
+    tr -d '\n' | \
+    sed '
+      s@\\|$@@
+    '
+)"'\)$'
+
 for dnsName in $( \
   echo "${dnsNamen[@]}" | \
     tr ' ' '\n' | \
@@ -115,6 +137,7 @@ do
         "${ipCmd}" -o ${ipCmdVers[${j}]} addr show scope global | \
           awk '{print $4}' | \
           cut -d/ -f1 | \
+          grep -vx "${ignoreIps}" | \
           sort -u
       )"
 
-- 
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