mirror of https://github.com/poanetwork/quorum.git
52 lines
1.8 KiB
Go
52 lines
1.8 KiB
Go
// Copyright 2015 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package core
|
|
|
|
import (
|
|
"math/big"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/core/state"
|
|
)
|
|
|
|
var (
|
|
jeff = common.HexToAddress("959c33de5961820567930eccce51ea715c496f85")
|
|
vitalik = common.HexToAddress("c8158da0b567a8cc898991c2c2a073af67dc03a9")
|
|
christoph = common.HexToAddress("7a19a893f91d5b6e2cdf941b6acbba2cbcf431ee")
|
|
gav = common.HexToAddress("539dd9aaf45c3feb03f9c004f4098bd3268fef6b")
|
|
)
|
|
|
|
// Canary will check the 0'd address of the 4 contracts above.
|
|
// If two or more are set to anything other than a 0 the canary
|
|
// dies a horrible death.
|
|
func Canary(statedb *state.StateDB) bool {
|
|
var r int
|
|
if (statedb.GetState(jeff, common.Hash{}).Big().Cmp(big.NewInt(0)) > 0) {
|
|
r++
|
|
}
|
|
if (statedb.GetState(gav, common.Hash{}).Big().Cmp(big.NewInt(0)) > 0) {
|
|
r++
|
|
}
|
|
if (statedb.GetState(christoph, common.Hash{}).Big().Cmp(big.NewInt(0)) > 0) {
|
|
r++
|
|
}
|
|
if (statedb.GetState(vitalik, common.Hash{}).Big().Cmp(big.NewInt(0)) > 0) {
|
|
r++
|
|
}
|
|
return r > 1
|
|
}
|