From: Mark Andrews <marka@isc.org>
Date: Tue, 21 May 2024 01:48:25 +0000 (+1000)
Subject: Handle ISC_R_HOSTDOWN and ISC_R_NETDOWN in resolver.c
X-Git-Tag: v9.20.0~14^2~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=180b1e79398a7120929c413c7c0392ae15ccf69c;p=thirdparty%2Fbind9.git

Handle ISC_R_HOSTDOWN and ISC_R_NETDOWN in resolver.c

These error codes should be treated like other unreachable error
codes.
---

diff --git a/lib/dns/resolver.c b/lib/dns/resolver.c
index fd5cc04be1c..1d899910b38 100644
--- a/lib/dns/resolver.c
+++ b/lib/dns/resolver.c
@@ -1752,7 +1752,9 @@ resquery_senddone(isc_result_t eresult, isc_region_t *region, void *arg) {
 	case ISC_R_SHUTTINGDOWN:
 		break;
 
+	case ISC_R_HOSTDOWN:
 	case ISC_R_HOSTUNREACH:
+	case ISC_R_NETDOWN:
 	case ISC_R_NETUNREACH:
 	case ISC_R_NOPERM:
 	case ISC_R_ADDRNOTAVAIL:
@@ -2829,8 +2831,10 @@ resquery_connected(isc_result_t eresult, isc_region_t *region, void *arg) {
 		fctx_done_detach(&fctx, eresult);
 		break;
 
-	case ISC_R_NETUNREACH:
+	case ISC_R_HOSTDOWN:
 	case ISC_R_HOSTUNREACH:
+	case ISC_R_NETDOWN:
+	case ISC_R_NETUNREACH:
 	case ISC_R_CONNREFUSED:
 	case ISC_R_NOPERM:
 	case ISC_R_ADDRNOTAVAIL:
@@ -7756,7 +7760,9 @@ rctx_dispfail(respctx_t *rctx) {
 	 */
 	switch (rctx->result) {
 	case ISC_R_EOF:
+	case ISC_R_HOSTDOWN:
 	case ISC_R_HOSTUNREACH:
+	case ISC_R_NETDOWN:
 	case ISC_R_NETUNREACH:
 	case ISC_R_CONNREFUSED:
 	case ISC_R_CONNECTIONRESET: