From 7a090e1219a58ca595da0d0c5837a7d09fae46a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=96=E7=95=8C?= <i@sekai.icu>
Date: Fri, 21 Feb 2025 08:30:34 +0800
Subject: [PATCH] Fix predefined DNS server

---
 dns/transport/predefined.go | 1 +
 option/dns_record.go        | 7 +++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/dns/transport/predefined.go b/dns/transport/predefined.go
index 3e52a595..dbb78e5c 100644
--- a/dns/transport/predefined.go
+++ b/dns/transport/predefined.go
@@ -74,6 +74,7 @@ func (t *PredefinedTransport) Exchange(ctx context.Context, message *mDNS.Msg) (
 			}() {
 				copyAnswer := *response.answer
 				copyAnswer.Id = message.Id
+				copyAnswer.Question = message.Question
 				return &copyAnswer, nil
 			}
 		}
diff --git a/option/dns_record.go b/option/dns_record.go
index 190f5483..c76a76c6 100644
--- a/option/dns_record.go
+++ b/option/dns_record.go
@@ -95,8 +95,11 @@ func (o DNSResponseOptions) Build() ([]dns.Question, *dns.Msg, error) {
 	}
 	return questions, &dns.Msg{
 		MsgHdr: dns.MsgHdr{
-			Response: true,
-			Rcode:    o.RCode.Build(),
+			Response:           true,
+			Rcode:              o.RCode.Build(),
+			Authoritative:      true,
+			RecursionDesired:   true,
+			RecursionAvailable: true,
 		},
 		Answer: common.Map(o.Answer, DNSRecordOptions.build),
 		Ns:     common.Map(o.Ns, DNSRecordOptions.build),