dnsforward: fix panic

heyxkhoa · Jul 6, 2021 · 7591a3b · 7591a3b
1 parent 4b5a66e
commit 7591a3b
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/internal/dnsforward/dns.go b/internal/dnsforward/dns.go
@@ -379,6 +379,9 @@ func (s *Server) ipToHost(ip net.IP) (host string, ok bool) {
 
 	var v interface{}
 	v, ok = s.tableIPToHost.Get(ip)
+	if !ok {
+		return "", false
+	}
 
 	var typOK bool
 	if host, typOK = v.(string); !typOK {