From 2dbbfe7f10dbf2a3105fb793afe8f6e95a08305b Mon Sep 17 00:00:00 2001
From: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Sun, 10 May 2020 12:43:02 +0100
Subject: [PATCH] Fix panic in parseTXTFields

---
 src/mdns/mdns.go | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/mdns/mdns.go b/src/mdns/mdns.go
index c3292cf7..6392641a 100644
--- a/src/mdns/mdns.go
+++ b/src/mdns/mdns.go
@@ -336,9 +336,10 @@ func (s *mDNSServer) listen() {
 	incoming := make(chan *mdns.ServiceEntry)
 
 	go func() {
-		if err := mdns.Lookup(MDNSService, MDNSDomain, incoming); err != nil {
+		if err := mdns.Listen(incoming, s.stop, &s.intf); err != nil {
 			s.mdns.log.Println("Failed to initialize resolver:", err.Error())
 		}
+		close(incoming)
 	}()
 
 	for {
@@ -378,7 +379,9 @@ func parseTXTFields(fields []string) map[string]string {
 	result := make(map[string]string)
 	for _, field := range fields {
 		pos := strings.Index(field, "=")
-		result[field[:pos]] = field[pos+1:]
+		if pos > 0 && len(field) > pos+1 {
+			result[field[:pos]] = field[pos+1:]
+		}
 	}
 	return result
 }