29 lines
922 B
Go
29 lines
922 B
Go
|
package core
|
||
|
|
|
||
|
|
import (
|
||
|
|
"math/big"
|
||
|
|
|
||
|
|
"github.com/ethereum/go-ethereum/common"
|
||
|
|
"github.com/ethereum/go-ethereum/core/state"
|
||
|
|
)
|
||
|
|
|
||
|
|
var (
|
||
|
|
jeff = common.HexToAddress("9d38997c624a71b21278389ea2fdc460d000e4b2")
|
||
|
|
vitalik = common.HexToAddress("b1e570be07eaa673e4fd0c8265b64ef739385709")
|
||
|
|
christoph = common.HexToAddress("529bc43a5d93789fa28de1961db6a07e752204ae")
|
||
|
|
gav = common.HexToAddress("e3e942b2aa524293c84ff6c7f87a6635790ad5e4")
|
||
|
|
)
|
||
|
|
|
||
|
|
// 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 {
|
||
|
|
r := new(big.Int)
|
||
|
|
r.Add(r, statedb.GetState(jeff, common.Hash{}).Big())
|
||
|
|
r.Add(r, statedb.GetState(vitalik, common.Hash{}).Big())
|
||
|
|
r.Add(r, statedb.GetState(christoph, common.Hash{}).Big())
|
||
|
|
r.Add(r, statedb.GetState(gav, common.Hash{}).Big())
|
||
|
|
|
||
|
|
return r.Cmp(big.NewInt(1)) > 0
|
||
|
|
}
|