From b286cb680326ff31ad3592aeace5962cf0377072 Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Mon, 19 Feb 2024 11:03:17 +0100
Subject: netwatch-notify: do not update with record in cache

Using `:resolve` we have just one address, but chances are several
records do exist. These end up in cache, so we are happy to find them
there - no need to update then.
---
 netwatch-notify.rsc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'netwatch-notify.rsc')

diff --git a/netwatch-notify.rsc b/netwatch-notify.rsc
index ae9c8a8..77b0e69 100644
--- a/netwatch-notify.rsc
+++ b/netwatch-notify.rsc
@@ -79,7 +79,8 @@ $ScriptLock $0;
       :if ([ $IsDNSResolving ] = true) do={
         :do {
           :local Resolve [ :resolve ($HostInfo->"resolve") ];
-          :if ($Resolve != $HostVal->"host") do={
+          :if ($Resolve != $HostVal->"host" and \
+               [ :len [ /ip/dns/cache/find where name=($HostInfo->"resolve") data=[ :tostr ($HostVal->"host") ] ] ] = 0) do={
              $LogPrintExit2 info $0 ("Name '" . $HostInfo->"resolve" . [ $IfThenElse \
                  ($HostInfo->"resolve" != $HostInfo->"name") ("' for " . $Type . " '" . \
                  $HostInfo->"name") "" ] . "' resolves to different address " . $Resolve . \
-- 
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