From 945e3660974b9337af1317e4a42463f76c69523f Mon Sep 17 00:00:00 2001
From: Philippe Pittoli <karchnu@karchnu.fr>
Date: Thu, 14 Mar 2024 04:43:02 +0100
Subject: [PATCH] use_token: update only when addresses differ, and update
 serial.

---
 src/storage.cr | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/storage.cr b/src/storage.cr
index 2d3c898..ed254d1 100644
--- a/src/storage.cr
+++ b/src/storage.cr
@@ -338,6 +338,9 @@ class DNSManager::Storage
 		zone = zone_must_exist! token.domain
 		rr = zone.rr_must_exist! token.rrid
 
+		# Same address, no need to change anything.
+		return Response::Success.new if rr.target == address
+
 		# TODO: validate target?
 
 		case rr
@@ -349,7 +352,7 @@ class DNSManager::Storage
 		when Zone::AAAA
 			rr.target = address
 			zone.update_rr rr
-			zones_by_domain.update_or_create zone.domain, zone
+			update_zone zone
 			Response::Success.new
 		else
 			Response::Error.new "use token on invalid entry (not A or AAAA)"