diff options
| -rw-r--r-- | core/canary.go | 28 | ||||
| -rw-r--r-- | miner/worker.go | 6 |
2 files changed, 34 insertions, 0 deletions
diff --git a/core/canary.go b/core/canary.go new file mode 100644 index 000000000..de77c4bba --- /dev/null +++ b/core/canary.go @@ -0,0 +1,28 @@ +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 +} diff --git a/miner/worker.go b/miner/worker.go index ab01ba09e..1e5d47965 100644 --- a/miner/worker.go +++ b/miner/worker.go @@ -267,6 +267,12 @@ func (self *worker) wait() { func (self *worker) push() { if atomic.LoadInt32(&self.mining) == 1 { + if core.Canary(self.current.state) { + glog.Infoln("Toxicity levels rising to deadly levels. Your canary has died. You can go back or continue down the mineshaft --more--") + glog.Infoln("You turn back and abort mining") + return + } + self.current.state.Sync() self.current.block.SetRoot(self.current.state.Root()) |