Golang FromHex示例

示例#1

文件： vm_test.go 项目： GrimDerp/eth-go

func TestRun2(t *testing.T) {
	ethutil.ReadConfig("")

	db, _ := ethdb.NewMemDatabase()
	state := NewState(ethutil.NewTrie(db, ""))

	script := Compile([]string{
		"PUSH", "0",
		"PUSH", "0",
		"TXSENDER",
		"PUSH", "10000000",
		"MKTX",
	})
	fmt.Println(ethutil.NewValue(script))

	tx := NewTransaction(ContractAddr, ethutil.Big("100000000000000000000000000000000000000000000000000"), script)
	fmt.Printf("contract addr %x\n", tx.Hash()[12:])
	contract := MakeContract(tx, state)
	vm := &Vm{}

	vm.Process(contract, state, RuntimeVars{
		address:     tx.Hash()[12:],
		blockNumber: 1,
		sender:      ethutil.FromHex("cd1722f3947def4cf144679da39c4c32bdc35681"),
		prevHash:    ethutil.FromHex("5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6"),
		coinbase:    ethutil.FromHex("2adc25665018aa1fe0e6bc666dac8fc2697ff9ba"),
		time:        1,
		diff:        big.NewInt(256),
		txValue:     tx.Value,
		txData:      tx.Data,
	})
}

示例#2

文件： block_chain.go 项目： josephyzhou/eth-go

func AddTestNetFunds(block *Block) {
	for _, addr := range []string{
		"8a40bfaa73256b60764c1bf40675a99083efb075", // Gavin
		"e6716f9544a56c530d868e4bfbacb172315bdead", // Jeffrey
		"1e12515ce3e0f817a4ddef9ca55788a1d66bd2df", // Vit
		"1a26338f0d905e295fccb71fa9ea849ffa12aaf4", // Alex
	} {
		//log.Println("2^200 Wei to", addr)
		codedAddr := ethutil.FromHex(addr)
		addr := block.state.GetAccount(codedAddr)
		addr.Amount = ethutil.BigPow(2, 200)
		block.state.UpdateAccount(codedAddr, addr)
	}
}

示例#3

文件： keys.go 项目： jubbsy/go-ethereum

func ImportPrivateKey(prvKey string) {
	key := ethutil.FromHex(prvKey)
	msg := []byte("tmp")
	// Couldn't think of a better way to get the pub key
	sig, _ := secp256k1.Sign(msg, key)
	pub, _ := secp256k1.RecoverPubkey(msg, sig)
	pair := &ethutil.Key{PrivateKey: key, PublicKey: pub}
	ethutil.Config.Db.Put([]byte("KeyRing"), pair.RlpEncode())

	fmt.Printf(`
Importing private key

++++++++++++++++ KeyRing +++++++++++++++++++
addr: %x
prvk: %x
pubk: %x
++++++++++++++++++++++++++++++++++++++++++++

`, pair.Address(), key, pub)
}

示例#4

文件： main.go 项目： obscuren/dnseth

	"github.com/ethereum/go-ethereum/utils"
	"github.com/miekg/dns"
	"strings"
)

/*
* Try it with:
* dig @localhost -p 8053 bytesized-hosting.eth
* Problem: No recursion
 */
var Datadir string
var Port string
var DnsPort string
var MaxPeer int

var dnsreg = ethutil.FromHex("1b6a704f1c12e98b4b355d385e8eeaa7e7b237e2")

func NewRR(s string) dns.RR { r, _ := dns.NewRR(s); return r }

func initEthereum() *eth.Ethereum {
	// Create flag for datadir folder
	flag.StringVar(&Datadir, "datadir", ".ethdns", "specifies the datadir to use. Takes precedence over config file.")
	flag.StringVar(&Port, "port", "20202", "specifies the Ethereum port to use.")
	flag.StringVar(&DnsPort, "dnsport", "8053", "specifies the DNS port to use.")
	flag.IntVar(&MaxPeer, "maxpeer", 10, "maximum desired peers")

	flag.Parse()

	// Set logging flags
	var lt ethutil.LoggerType
	lt = ethutil.LogFile | ethutil.LogStd