From bccdb47fdedf5cccd779fd54766db05dfd1741ab Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Thu, 29 Aug 2019 14:17:34 +0200
Subject: ipv6-update: calculate address with bitwise operator

Support for bitwise operator was added in RouterOS 6.46beta38.
---
 ipv6-update | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/ipv6-update b/ipv6-update
index e21e6bb..86bd827 100644
--- a/ipv6-update
+++ b/ipv6-update
@@ -29,13 +29,10 @@ if ($OldPrefix != $PdPrefix) do={
     :local Comment [ $ParseKeyValueStore ($RecordVal->"comment") ];
 
     :local Prefix [ / ipv6 address get [ find where interface=($Comment->"interface") from-pool=$Pool global ] address ];
-    :set Prefix [ :pick $Prefix 0 [ :find $Prefix "::/64" ] ];
-    :if ($Prefix~"^[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:") do={ } else={
-      :set Prefix ($Prefix . ":");
-    }
-
-    :log info ("Updating DNS record for " . ($RecordVal->"name") . ($RecordVal->"regexp") . \
-        " to " . $Prefix . ":" . ($Comment->"suffix"));
-    / ip dns static set address=($Prefix . ":" . ($Comment->"suffix")) $Record;
+    :set Prefix [ :toip6 [ :pick $Prefix 0 [ :find $Prefix "/64" ] ] ];
+    :local Address ($Prefix | ([ :toip6 ($RecordVal->"address") ] & ::ffff:ffff:ffff:ffff));
+
+    :log info ("Updating DNS record for " . ($RecordVal->"name") . ($RecordVal->"regexp") . " to " . $Address);
+    / ip dns static set address=$Address $Record;
   }
 }
-- 
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