From fa29c9640b88b5d9434c16d6feaac4dc5a42c655 Mon Sep 17 00:00:00 2001
From: Jonni Liljamo <jonni@liljamo.com>
Date: Wed, 9 Oct 2024 13:18:09 +0300
Subject: [PATCH] feat: serve dns on tcp too

---
 cmd/felu/main.go       | 8 ++++++--
 internal/dns/server.go | 4 ++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/cmd/felu/main.go b/cmd/felu/main.go
index fe66827..36d203b 100644
--- a/cmd/felu/main.go
+++ b/cmd/felu/main.go
@@ -77,9 +77,13 @@ func main() {
 	dnsIP := config.FeluConfig.DNSBindIP
 	dnsPort := strconv.Itoa(int(config.FeluConfig.DNSBindPort))
 	dnsAddr := dnsIP + ":" + dnsPort
-	slog.Info("Serving DNS", slog.String("addr", dnsAddr))
+	slog.Info("Serving DNS (udp)", slog.String("addr", dnsAddr))
 	g.Go(func() error {
-		return dns.Run(dnsAddr)
+		return dns.Run(dnsAddr, "udp")
+	})
+	slog.Info("Serving DNS (tcp)", slog.String("addr", dnsAddr))
+	g.Go(func() error {
+		return dns.Run(dnsAddr, "tcp")
 	})
 
 	if err := g.Wait(); err != nil {
diff --git a/internal/dns/server.go b/internal/dns/server.go
index 008d11e..c92b499 100644
--- a/internal/dns/server.go
+++ b/internal/dns/server.go
@@ -14,12 +14,12 @@ import (
 )
 
 // Run starts the DNS server.
-func Run(addr string) error {
+func Run(addr string, net string) error {
 	dns.HandleFunc(config.FeluConfig.DNSPattern, handleDNSRequest)
 
 	server := &dns.Server{
 		Addr: addr,
-		Net:  "udp",
+		Net:  net,
 	}
 
 	return server.ListenAndServe()
-- 
2.44.1