Don't display sorted latencies if there is only one (or none)

dnscrypt-proxy/plugins.go

@@ -164,11 +164,11 @@ func NewPluginsState(proxy *Proxy, clientProto string, clientAddr *net.Addr, sta
 	}
 }
 
-func (pluginsState *PluginsState) ApplyQueryPlugins(pluginsGlobals *PluginsGlobals, packet []byte, serverName *string) ([]byte, error) {
+func (pluginsState *PluginsState) ApplyQueryPlugins(pluginsGlobals *PluginsGlobals, packet []byte, serverName string) ([]byte, error) {
 	if len(*pluginsGlobals.queryPlugins) == 0 && len(*pluginsGlobals.loggingPlugins) == 0 {
 		return packet, nil
 	}
-	pluginsState.serverName = *serverName
+	pluginsState.serverName = serverName
 	pluginsState.action = PluginsActionForward
 	msg := dns.Msg{}
 	if err := msg.Unpack(packet); err != nil {

dnscrypt-proxy/proxy.go

@@ -332,7 +332,11 @@ func (proxy *Proxy) processIncomingQuery(serverInfo *ServerInfo, clientProto str
 		return
 	}
 	pluginsState := NewPluginsState(proxy, clientProto, clientAddr, start)
-	query, _ = pluginsState.ApplyQueryPlugins(&proxy.pluginsGlobals, query, &serverInfo.Name)
+	serverName := "-"
+	if serverInfo != nil {
+		serverName = serverInfo.Name
+	}
+	query, _ = pluginsState.ApplyQueryPlugins(&proxy.pluginsGlobals, query, serverName)
 	if len(query) < MinDNSPacketSize || len(query) > MaxDNSPacketSize {
 		return
 	}

dnscrypt-proxy/serversInfo.go

@@ -149,11 +149,12 @@ func (serversInfo *ServersInfo) refresh(proxy *Proxy) (int, error) {
 	}
 	serversInfo.inner = inner
 
-	dlog.Notice("Sorted latencies:")
-	for i := 0; i < innerLen; i++ {
-		dlog.Noticef("- %5dms %s", inner[i].initialRtt, inner[i].Name)
+	if innerLen > 1 {
+		dlog.Notice("Sorted latencies:")
+		for i := 0; i < innerLen; i++ {
+			dlog.Noticef("- %5dms %s", inner[i].initialRtt, inner[i].Name)
+		}
 	}
-
 	if innerLen > 0 {
 		dlog.Noticef("Server with the lowest initial latency: %s (rtt: %dms)", inner[0].Name, inner[0].initialRtt)
 		proxy.certIgnoreTimestamp = false