Frontend: add traceroute support

frontend/main.go

@@ -9,17 +9,20 @@ var settingServers []string
 var settingServersDomain string
 var settingServersPort int
 var settingWhoisServer string
+var settingListen string
 
 func main() {
     serversPtr := flag.String("servers", "", "server name prefixes, separated by comma")
     domainPtr := flag.String("domain", "", "server name domain suffixes")
     portPtr := flag.Int("port", 8000, "port bird-lgproxy is running on")
     whoisPtr := flag.String("whois", "whois.verisign-grs.com", "whois server for queries")
+    listenPortPtr := flag.String("listen", ":5000", "address bird-lg is listening on")
     flag.Parse()
 
     settingServers = strings.Split(*serversPtr, ",")
     settingServersDomain = *domainPtr
     settingServersPort = *portPtr
     settingWhoisServer = *whoisPtr
+    settingListen = *listenPortPtr
     webServerStart()
 }