From: Mark Karpilovskij <mark.karpilovskij@nic.cz>
Date: Mon, 12 Mar 2018 13:44:48 +0000 (+0100)
Subject: nameserver: do not solve answer if it was already solved
X-Git-Tag: v2.7.0~161
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bc52efb7b8d6de62d1c33092dbb8890bd2e00f0a;p=thirdparty%2Fknot-dns.git

nameserver: do not solve answer if it was already solved
---

diff --git a/src/knot/nameserver/internet.c b/src/knot/nameserver/internet.c
index 557689c11f..56efa08852 100644
--- a/src/knot/nameserver/internet.c
+++ b/src/knot/nameserver/internet.c
@@ -418,6 +418,11 @@ static int solve_name(int state, knot_pkt_t *pkt, knotd_qdata_t *qdata)
 
 static int solve_answer(int state, knot_pkt_t *pkt, knotd_qdata_t *qdata, void *ctx)
 {
+	/* Do not solve if already solved, e.g. in a module. */
+	if (state == KNOTD_IN_STATE_HIT) {
+		return state;
+	}
+
 	/* Get answer to QNAME. */
 	state = solve_name(state, pkt, qdata);