Add flag to set RPC port

cmd/ethereum/flags.go

@@ -43,6 +43,7 @@ var (
 	KeyStore         string
 	StartRpc         bool
 	StartWebSockets  bool
+	RpcListenAddress string
 	RpcPort          int
 	WsPort           int
 	OutboundPort     string
@@ -93,6 +94,7 @@ func Init() {
 	flag.StringVar(&KeyRing, "keyring", "", "identifier for keyring to use")
 	flag.StringVar(&KeyStore, "keystore", "db", "system to store keyrings: db|file (db)")
 
+	flag.StringVar(&RpcListenAddress, "rpcaddr", "127.0.0.1", "address for json-rpc server to listen on")
 	flag.IntVar(&RpcPort, "rpcport", 8545, "port to start json-rpc server on")
 	flag.IntVar(&WsPort, "wsport", 40404, "port to start websocket rpc server on")
 	flag.BoolVar(&StartRpc, "rpc", false, "start rpc server")

cmd/ethereum/main.go

@@ -128,7 +128,7 @@ func main() {
 	}
 
 	if StartRpc {
-		utils.StartRpc(ethereum, RpcPort)
+		utils.StartRpc(ethereum, RpcListenAddress, RpcPort)
 	}
 
 	if StartWebSockets {

cmd/mist/flags.go

@@ -42,6 +42,7 @@ var (
 	KeyStore         string
 	StartRpc         bool
 	StartWebSockets  bool
+	RpcListenAddress string
 	RpcPort          int
 	WsPort           int
 	OutboundPort     string
@@ -79,6 +80,7 @@ func Init() {
 	flag.StringVar(&Identifier, "id", "", "Custom client identifier")
 	flag.StringVar(&KeyRing, "keyring", "", "identifier for keyring to use")
 	flag.StringVar(&KeyStore, "keystore", "db", "system to store keyrings: db|file (db)")
+	flag.StringVar(&RpcListenAddress, "rpcaddr", "127.0.0.1", "address for json-rpc server to listen on")
 	flag.IntVar(&RpcPort, "rpcport", 8545, "port to start json-rpc server on")
 	flag.IntVar(&WsPort, "wsport", 40404, "port to start websocket rpc server on")
 	flag.BoolVar(&StartRpc, "rpc", true, "start rpc server")

cmd/mist/main.go

@@ -73,7 +73,7 @@ func run() error {
 	utils.KeyTasks(ethereum.KeyManager(), KeyRing, GenAddr, SecretFile, ExportDir, NonInteractive)
 
 	if StartRpc {
-		utils.StartRpc(ethereum, RpcPort)
+		utils.StartRpc(ethereum, RpcListenAddress, RpcPort)
 	}
 
 	if StartWebSockets {

cmd/utils/cmd.go

@@ -160,9 +160,9 @@ func KeyTasks(keyManager *crypto.KeyManager, KeyRing string, GenAddr bool, Secre
 	clilogger.Infof("Main address %x\n", keyManager.Address())
 }
 
-func StartRpc(ethereum *eth.Ethereum, RpcPort int) {
+func StartRpc(ethereum *eth.Ethereum, RpcListenAddress string, RpcPort int) {
 	var err error
-	ethereum.RpcServer, err = rpchttp.NewRpcHttpServer(xeth.New(ethereum), RpcPort)
+	ethereum.RpcServer, err = rpchttp.NewRpcHttpServer(xeth.New(ethereum), RpcListenAddress, RpcPort)
 	if err != nil {
 		clilogger.Errorf("Could not start RPC interface (port %v): %v", RpcPort, err)
 	} else {

rpc/http/server.go

@@ -29,8 +29,8 @@ import (
 var rpchttplogger = logger.NewLogger("RPC-HTTP")
 var JSON rpc.JsonWrapper
 
-func NewRpcHttpServer(pipe *xeth.XEth, port int) (*RpcHttpServer, error) {
-	sport := fmt.Sprintf("127.0.0.1:%d", port)
+func NewRpcHttpServer(pipe *xeth.XEth, address string, port int) (*RpcHttpServer, error) {
+	sport := fmt.Sprintf("%s:%d", address, port)
 	l, err := net.Listen("tcp", sport)
 	if err != nil {
 		return nil, err