From 85453d393d1b591ae1108603308c79dd63acca85 Mon Sep 17 00:00:00 2001
From: Matthijs Mekking <matthijs@isc.org>
Date: Tue, 17 Mar 2026 09:29:10 +0100
Subject: [PATCH] Store zone config also on modzone

'rndc modzone' deletes the old configuration. If we don't store the
new zone config, when we do a 'rndc showzone' it will be a failure.

This is not an issue in the 9.21 version, because of the effective
config behavior.
---
 bin/named/server.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/bin/named/server.c b/bin/named/server.c
index 09cf436627..37d4ba92e8 100644
--- a/bin/named/server.c
+++ b/bin/named/server.c
@@ -14298,6 +14298,18 @@ do_modzone(named_server_t *server, ns_cfgctx_t *cfg, dns_view_t *view,
 		TCHECK(putstr(text, zname));
 		TCHECK(putstr(text, "' reconfigured."));
 	} else {
+#ifdef HAVE_LMDB
+		CHECK(nzd_open(view, 0, &txn, &dbi));
+		CHECK(nzd_save(&txn, dbi, zone, zoneobj));
+#else  /* ifdef HAVE_LMDB */
+		result = nzf_append(view, zoneobj);
+		if (result != ISC_R_SUCCESS) {
+			TCHECK(putstr(text, "\nNew zone config not saved: "));
+			TCHECK(putstr(text, isc_result_totext(result)));
+			goto cleanup;
+		}
+#endif /* HAVE_LMDB */
+
 		TCHECK(putstr(text, "zone '"));
 		TCHECK(putstr(text, zname));
 		TCHECK(putstr(text, "' must also be reconfigured in\n"));