From 7f68af1b88f1e8edbb78cd5d9404150e237b29e5 Mon Sep 17 00:00:00 2001
From: Robert Edmonds <edmonds@users.noreply.github.com>
Date: Wed, 5 Jan 2022 16:46:04 -0500
Subject: [PATCH] pkt: initialize 'lower_qname' in knot_pkt_init_response()
---
src/libknot/packet/pkt.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/src/libknot/packet/pkt.c b/src/libknot/packet/pkt.c
index e4fbcc685d..00f975b4ee 100644
--- a/src/libknot/packet/pkt.c
+++ b/src/libknot/packet/pkt.c
@@ -358,6 +358,18 @@ int knot_pkt_init_response(knot_pkt_t *pkt, const knot_pkt_t *query)
/* Clear payload. */
payload_clear(pkt);
+ /* Allocate lower_qname field. */
+ pkt->lower_qname = mm_alloc(&pkt->mm, pkt->qname_size);
+ if (pkt->lower_qname == NULL) {
+ return KNOT_ENOMEM;
+ }
+
+ /* Copy QNAME and canonicalize to lowercase. */
+ memcpy(pkt->lower_qname,
+ pkt->wire + KNOT_WIRE_HEADER_SIZE,
+ pkt->qname_size);
+ knot_dname_to_lower(pkt->lower_qname);
+
/* Clear compression context. */
compr_clear(&pkt->compr);
--
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