예제 #1
0
func main() {
	var (
		listenAddr  = flag.String("addr", ":42787", "listen address")
		genKey      = flag.String("genkey", "", "generate a node key and quit")
		nodeKeyFile = flag.String("nodekey", "", "private key filename")
		nodeKeyHex  = flag.String("nodekeyhex", "", "private key as hex (for testing)")
		natdesc     = flag.String("nat", "none", "port mapping mechanism (any|none|upnp|pmp|extip:<IP>)")

		nodeKey *ecdsa.PrivateKey
		err     error
	)
	flag.Var(glog.GetVerbosity(), "verbosity", "log verbosity (0-9)")
	flag.Var(glog.GetVModule(), "vmodule", "log verbosity pattern")
	glog.SetToStderr(true)
	flag.Parse()

	if *genKey != "" {
		key, err := crypto.GenerateKey()
		if err != nil {
			utils.Fatalf("could not generate key: %v", err)
		}
		if err := crypto.SaveECDSA(*genKey, key); err != nil {
			utils.Fatalf("%v", err)
		}
		os.Exit(0)
	}

	natm, err := nat.Parse(*natdesc)
	if err != nil {
		utils.Fatalf("-nat: %v", err)
	}
	switch {
	case *nodeKeyFile == "" && *nodeKeyHex == "":
		utils.Fatalf("Use -nodekey or -nodekeyhex to specify a private key")
	case *nodeKeyFile != "" && *nodeKeyHex != "":
		utils.Fatalf("Options -nodekey and -nodekeyhex are mutually exclusive")
	case *nodeKeyFile != "":
		if nodeKey, err = crypto.LoadECDSA(*nodeKeyFile); err != nil {
			utils.Fatalf("-nodekey: %v", err)
		}
	case *nodeKeyHex != "":
		if nodeKey, err = crypto.HexToECDSA(*nodeKeyHex); err != nil {
			utils.Fatalf("-nodekeyhex: %v", err)
		}
	}

	if _, err := discover.ListenUDP(nodeKey, *listenAddr, natm, ""); err != nil {
		utils.Fatalf("%v", err)
	}
	select {}
}
예제 #2
0
import (
	"fmt"
	"net/http"
	_ "net/http/pprof"
	"runtime"

	"github.com/expanse-project/go-expanse/logger"
	"github.com/expanse-project/go-expanse/logger/glog"
	"gopkg.in/urfave/cli.v1"
)

var (
	verbosityFlag = cli.GenericFlag{
		Name:  "verbosity",
		Usage: "Logging verbosity: 0=silent, 1=error, 2=warn, 3=info, 4=core, 5=debug, 6=detail",
		Value: glog.GetVerbosity(),
	}
	vmoduleFlag = cli.GenericFlag{
		Name:  "vmodule",
		Usage: "Per-module verbosity: comma-separated list of <pattern>=<level> (e.g. eth/*=6,p2p=5)",
		Value: glog.GetVModule(),
	}
	backtraceAtFlag = cli.GenericFlag{
		Name:  "backtrace",
		Usage: "Request a stack trace at a specific logging statement (e.g. \"block.go:271\")",
		Value: glog.GetTraceLocation(),
	}
	pprofFlag = cli.BoolFlag{
		Name:  "pprof",
		Usage: "Enable the pprof HTTP server",
	}