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Golang common.Bytes2Big函數代碼示例

本文整理匯總了Golang中github.com/ethereum/go-ethereum/common.Bytes2Big函數的典型用法代碼示例。如果您正苦於以下問題：Golang Bytes2Big函數的具體用法？Golang Bytes2Big怎麽用？Golang Bytes2Big使用的例子？那麽, 這裏精選的函數代碼示例或許可以為您提供幫助。


在下文中一共展示了Bytes2Big函數的12個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: ecrecoverFunc

func ecrecoverFunc(in []byte) []byte {
	in = common.RightPadBytes(in, 128)
	// "in" is (hash, v, r, s), each 32 bytes
	// but for ecrecover we want (r, s, v)

	r := common.BytesToBig(in[64:96])
	s := common.BytesToBig(in[96:128])
	// Treat V as a 256bit integer
	vbig := common.Bytes2Big(in[32:64])
	v := byte(vbig.Uint64())

	if !crypto.ValidateSignatureValues(v, r, s) {
		glog.V(logger.Error).Infof("EC RECOVER FAIL: v, r or s value invalid")
		return nil
	}

	// v needs to be at the end and normalized for libsecp256k1
	vbignormal := new(big.Int).Sub(vbig, big.NewInt(27))
	vnormal := byte(vbignormal.Uint64())
	rsv := append(in[64:128], vnormal)
	pubKey, err := crypto.Ecrecover(in[:32], rsv)
	// make sure the public key is a valid one
	if err != nil {
		glog.V(logger.Error).Infof("EC RECOVER FAIL: ", err)
		return nil
	}

	// the first byte of pubkey is bitcoin heritage
	return common.LeftPadBytes(crypto.Sha3(pubKey[1:])[12:], 32)
}
開發者ID:ssonneborn22，項目名稱:go-ethereum，代碼行數:30，代碼來源:contracts.go

示例2: makePush

// make push instruction function
func makePush(size uint64, bsize *big.Int) instrFn {
	return func(instr instruction, pc *uint64, env Environment, contract *Contract, memory *Memory, stack *stack) {
		byts := getData(contract.Code, new(big.Int).SetUint64(*pc+1), bsize)
		stack.push(common.Bytes2Big(byts))
		*pc += size
	}
}
開發者ID:obscuren，項目名稱:etherapis，代碼行數:8，代碼來源:instructions.go

示例3: ecrecoverFunc

func ecrecoverFunc(in []byte) []byte {
	// "in" is (hash, v, r, s), each 32 bytes
	// but for ecrecover we want (r, s, v)
	if len(in) < ecRecoverInputLength {
		return nil
	}

	// Treat V as a 256bit integer
	v := new(big.Int).Sub(common.Bytes2Big(in[32:64]), big.NewInt(27))
	// Ethereum requires V to be either 0 or 1 => (27 || 28)
	if !(v.Cmp(Zero) == 0 || v.Cmp(One) == 0) {
		return nil
	}

	// v needs to be moved to the end
	rsv := append(in[64:128], byte(v.Uint64()))
	pubKey, err := crypto.Ecrecover(in[:32], rsv)
	// make sure the public key is a valid one
	if err != nil {
		glog.V(logger.Error).Infof("EC RECOVER FAIL: ", err)
		return nil
	}

	// the first byte of pubkey is bitcoin heritage
	return common.LeftPadBytes(crypto.Sha3(pubKey[1:])[12:], 32)
}
開發者ID:CedarLogic，項目名稱:go-ethereum，代碼行數:26，代碼來源:address.go

示例4: opCalldataLoad

func opCalldataLoad(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {
	stack.push(common.Bytes2Big(getData(context.Input, stack.pop(), common.Big32)))
}
開發者ID:nellyk，項目名稱:go-ethereum，代碼行數:3，代碼來源:instructions.go

示例5: opCaller

func opCaller(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {
	stack.push(common.Bytes2Big(context.caller.Address().Bytes()))
}
開發者ID:nellyk，項目名稱:go-ethereum，代碼行數:3，代碼來源:instructions.go

示例6: CompileProgram


//.........這裏部分代碼省略.........
			program.addInstr(op, pc, opBalance, nil)
		case ORIGIN:
			program.addInstr(op, pc, opOrigin, nil)
		case CALLER:
			program.addInstr(op, pc, opCaller, nil)
		case CALLVALUE:
			program.addInstr(op, pc, opCallValue, nil)
		case CALLDATALOAD:
			program.addInstr(op, pc, opCalldataLoad, nil)
		case CALLDATASIZE:
			program.addInstr(op, pc, opCalldataSize, nil)
		case CALLDATACOPY:
			program.addInstr(op, pc, opCalldataCopy, nil)
		case CODESIZE:
			program.addInstr(op, pc, opCodeSize, nil)
		case EXTCODESIZE:
			program.addInstr(op, pc, opExtCodeSize, nil)
		case CODECOPY:
			program.addInstr(op, pc, opCodeCopy, nil)
		case EXTCODECOPY:
			program.addInstr(op, pc, opExtCodeCopy, nil)
		case GASPRICE:
			program.addInstr(op, pc, opGasprice, nil)
		case BLOCKHASH:
			program.addInstr(op, pc, opBlockhash, nil)
		case COINBASE:
			program.addInstr(op, pc, opCoinbase, nil)
		case TIMESTAMP:
			program.addInstr(op, pc, opTimestamp, nil)
		case NUMBER:
			program.addInstr(op, pc, opNumber, nil)
		case DIFFICULTY:
			program.addInstr(op, pc, opDifficulty, nil)
		case GASLIMIT:
			program.addInstr(op, pc, opGasLimit, nil)
		case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32:
			size := uint64(op - PUSH1 + 1)
			bytes := getData([]byte(program.code), new(big.Int).SetUint64(pc+1), new(big.Int).SetUint64(size))

			program.addInstr(op, pc, opPush, common.Bytes2Big(bytes))

			pc += size

		case POP:
			program.addInstr(op, pc, opPop, nil)
		case DUP1, DUP2, DUP3, DUP4, DUP5, DUP6, DUP7, DUP8, DUP9, DUP10, DUP11, DUP12, DUP13, DUP14, DUP15, DUP16:
			program.addInstr(op, pc, opDup, big.NewInt(int64(op-DUP1+1)))
		case SWAP1, SWAP2, SWAP3, SWAP4, SWAP5, SWAP6, SWAP7, SWAP8, SWAP9, SWAP10, SWAP11, SWAP12, SWAP13, SWAP14, SWAP15, SWAP16:
			program.addInstr(op, pc, opSwap, big.NewInt(int64(op-SWAP1+2)))
		case LOG0, LOG1, LOG2, LOG3, LOG4:
			program.addInstr(op, pc, opLog, big.NewInt(int64(op-LOG0)))
		case MLOAD:
			program.addInstr(op, pc, opMload, nil)
		case MSTORE:
			program.addInstr(op, pc, opMstore, nil)
		case MSTORE8:
			program.addInstr(op, pc, opMstore8, nil)
		case SLOAD:
			program.addInstr(op, pc, opSload, nil)
		case SSTORE:
			program.addInstr(op, pc, opSstore, nil)
		case JUMP:
			program.addInstr(op, pc, opJump, nil)
		case JUMPI:
			program.addInstr(op, pc, opJumpi, nil)
		case JUMPDEST:
			program.addInstr(op, pc, opJumpdest, nil)
			program.destinations[pc] = struct{}{}
		case PC:
			program.addInstr(op, pc, opPc, big.NewInt(int64(pc)))
		case MSIZE:
			program.addInstr(op, pc, opMsize, nil)
		case GAS:
			program.addInstr(op, pc, opGas, nil)
		case CREATE:
			program.addInstr(op, pc, opCreate, nil)
		case DELEGATECALL:
			// Instruction added regardless of homestead phase.
			// Homestead (and execution of the opcode) is checked during
			// runtime.
			program.addInstr(op, pc, opDelegateCall, nil)
		case CALL:
			program.addInstr(op, pc, opCall, nil)
		case CALLCODE:
			program.addInstr(op, pc, opCallCode, nil)
		case RETURN:
			program.addInstr(op, pc, opReturn, nil)
		case SUICIDE:
			program.addInstr(op, pc, opSuicide, nil)
		case STOP: // Stop the contract
			program.addInstr(op, pc, opStop, nil)
		default:
			program.addInstr(op, pc, nil, nil)
		}
	}

	optimiseProgram(program)

	return nil
}
開發者ID:Codzart，項目名稱:go-ethereum，代碼行數:101，代碼來源:jit.go

示例7: Big

func (b Bloom) Big() *big.Int {
	return common.Bytes2Big(b[:])
}
開發者ID:Codzart，項目名稱:go-ethereum，代碼行數:3，代碼來源:bloom9.go

示例8: verifyTxFields

func verifyTxFields(txTest TransactionTest, decodedTx *types.Transaction) (err error) {
	defer func() {
		if recovered := recover(); recovered != nil {
			buf := make([]byte, 64<<10)
			buf = buf[:runtime.Stack(buf, false)]
			err = fmt.Errorf("%v\n%s", recovered, buf)
		}
	}()

	decodedSender, err := decodedTx.From()
	if err != nil {
		return err
	}

	expectedSender := mustConvertAddress(txTest.Sender)
	if expectedSender != decodedSender {
		return fmt.Errorf("Sender mismatch: %v %v", expectedSender, decodedSender)
	}

	expectedData := mustConvertBytes(txTest.Transaction.Data)
	if !bytes.Equal(expectedData, decodedTx.Payload) {
		return fmt.Errorf("Tx input data mismatch: %#v %#v", expectedData, decodedTx.Payload)
	}

	expectedGasLimit := mustConvertBigInt(txTest.Transaction.GasLimit, 16)
	if expectedGasLimit.Cmp(decodedTx.GasLimit) != 0 {
		return fmt.Errorf("GasLimit mismatch: %v %v", expectedGasLimit, decodedTx.GasLimit)
	}

	expectedGasPrice := mustConvertBigInt(txTest.Transaction.GasPrice, 16)
	if expectedGasPrice.Cmp(decodedTx.Price) != 0 {
		return fmt.Errorf("GasPrice mismatch: %v %v", expectedGasPrice, decodedTx.Price)
	}

	expectedNonce := mustConvertUint(txTest.Transaction.Nonce, 16)
	if expectedNonce != decodedTx.AccountNonce {
		return fmt.Errorf("Nonce mismatch: %v %v", expectedNonce, decodedTx.AccountNonce)
	}

	expectedR := common.Bytes2Big(mustConvertBytes(txTest.Transaction.R))
	if expectedR.Cmp(decodedTx.R) != 0 {
		return fmt.Errorf("R mismatch: %v %v", expectedR, decodedTx.R)
	}

	expectedS := common.Bytes2Big(mustConvertBytes(txTest.Transaction.S))
	if expectedS.Cmp(decodedTx.S) != 0 {
		return fmt.Errorf("S mismatch: %v %v", expectedS, decodedTx.S)
	}

	expectedV := mustConvertUint(txTest.Transaction.V, 16)
	if expectedV != uint64(decodedTx.V) {
		return fmt.Errorf("V mismatch: %v %v", expectedV, uint64(decodedTx.V))
	}

	expectedTo := mustConvertAddress(txTest.Transaction.To)
	if decodedTx.Recipient == nil {
		if expectedTo != common.BytesToAddress([]byte{}) { // "empty" or "zero" address
			return fmt.Errorf("To mismatch when recipient is nil (contract creation): %v", expectedTo)
		}
	} else {
		if expectedTo != *decodedTx.Recipient {
			return fmt.Errorf("To mismatch: %v %v", expectedTo, *decodedTx.Recipient)
		}
	}

	expectedValue := mustConvertBigInt(txTest.Transaction.Value, 16)
	if expectedValue.Cmp(decodedTx.Amount) != 0 {
		return fmt.Errorf("Value mismatch: %v %v", expectedValue, decodedTx.Amount)
	}

	return nil
}
開發者ID:ssonneborn22，項目名稱:go-ethereum，代碼行數:72，代碼來源:transaction_test_util.go

示例9: Run


//.........這裏部分代碼省略.........
			x := stack.pop()
			y := stack.pop()
			z := stack.pop()

			if z.Cmp(Zero) > 0 {
				add := new(big.Int).Add(x, y)
				base.Mod(add, z)

				base = U256(base)
			}

			stack.push(base)
		case MULMOD:
			x := stack.pop()
			y := stack.pop()
			z := stack.pop()

			if z.Cmp(Zero) > 0 {
				mul := new(big.Int).Mul(x, y)
				base.Mod(mul, z)

				U256(base)
			}

			stack.push(base)

		case SHA3:
			offset, size := stack.pop(), stack.pop()
			data := crypto.Sha3(mem.Get(offset.Int64(), size.Int64()))

			stack.push(common.BigD(data))

		case ADDRESS:
			stack.push(common.Bytes2Big(context.Address().Bytes()))

		case BALANCE:
			addr := common.BigToAddress(stack.pop())
			balance := statedb.GetBalance(addr)

			stack.push(new(big.Int).Set(balance))

		case ORIGIN:
			origin := self.env.Origin()

			stack.push(origin.Big())

		case CALLER:
			caller := context.caller.Address()
			stack.push(common.Bytes2Big(caller.Bytes()))

		case CALLVALUE:
			stack.push(new(big.Int).Set(value))

		case CALLDATALOAD:
			data := getData(input, stack.pop(), common.Big32)

			stack.push(common.Bytes2Big(data))
		case CALLDATASIZE:
			l := int64(len(input))
			stack.push(big.NewInt(l))

		case CALLDATACOPY:
			var (
				mOff = stack.pop()
				cOff = stack.pop()
				l    = stack.pop()
開發者ID:nellyk，項目名稱:go-ethereum，代碼行數:67，代碼來源:vm.go

示例10: opAddress

func opAddress(instr instruction, pc *uint64, env Environment, contract *Contract, memory *Memory, stack *stack) {
	stack.push(common.Bytes2Big(contract.Address().Bytes()))
}
開發者ID:obscuren，項目名稱:etherapis，代碼行數:3，代碼來源:instructions.go

示例11: SetSignatureValues

func (tx *Transaction) SetSignatureValues(sig []byte) error {
	tx.R = common.Bytes2Big(sig[:32])
	tx.S = common.Bytes2Big(sig[32:64])
	tx.V = sig[64] + 27
	return nil
}
開發者ID:CedarLogic，項目名稱:go-ethereum，代碼行數:6，代碼來源:transaction.go

示例12: Run


//.........這裏部分代碼省略.........

				base = U256(base)
			}

			self.Printf(" %v + %v %% %v = %v", x, y, z, base)

			stack.push(base)
		case MULMOD:
			x := stack.pop()
			y := stack.pop()
			z := stack.pop()

			if z.Cmp(Zero) > 0 {
				mul := new(big.Int).Mul(x, y)
				base.Mod(mul, z)

				U256(base)
			}

			self.Printf(" %v + %v %% %v = %v", x, y, z, base)

			stack.push(base)

			// 0x20 range
		case SHA3:
			offset, size := stack.pop(), stack.pop()
			data := crypto.Sha3(mem.Get(offset.Int64(), size.Int64()))

			stack.push(common.BigD(data))

			self.Printf(" => (%v) %x", size, data)
			// 0x30 range
		case ADDRESS:
			stack.push(common.Bytes2Big(context.Address().Bytes()))

			self.Printf(" => %x", context.Address())
		case BALANCE:
			addr := common.BigToAddress(stack.pop())
			balance := statedb.GetBalance(addr)

			stack.push(balance)

			self.Printf(" => %v (%x)", balance, addr)
		case ORIGIN:
			origin := self.env.Origin()

			stack.push(origin.Big())

			self.Printf(" => %x", origin)
		case CALLER:
			caller := context.caller.Address()
			stack.push(common.Bytes2Big(caller.Bytes()))

			self.Printf(" => %x", caller)
		case CALLVALUE:
			stack.push(value)

			self.Printf(" => %v", value)
		case CALLDATALOAD:
			data := getData(callData, stack.pop(), common.Big32)

			self.Printf(" => 0x%x", data)

			stack.push(common.Bytes2Big(data))
		case CALLDATASIZE:
			l := int64(len(callData))
開發者ID:CedarLogic，項目名稱:go-ethereum，代碼行數:67，代碼來源:vm.go


注：本文中的github.com/ethereum/go-ethereum/common.Bytes2Big函數示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。