diff options
author | Jeffrey Wilcke <geffobscura@gmail.com> | 2015-06-29 18:42:47 +0800 |
---|---|---|
committer | Jeffrey Wilcke <geffobscura@gmail.com> | 2015-06-29 19:31:49 +0800 |
commit | b39042db5672e830ddec41ea97c642d93be61c30 (patch) | |
tree | 1c0a9ac2c1c6b616b1ea14e9b4cd1e847472e6d7 /core | |
parent | d1e93db3ebc218044339a6c5c95b4907e6351ede (diff) | |
download | dexon-b39042db5672e830ddec41ea97c642d93be61c30.tar dexon-b39042db5672e830ddec41ea97c642d93be61c30.tar.gz dexon-b39042db5672e830ddec41ea97c642d93be61c30.tar.bz2 dexon-b39042db5672e830ddec41ea97c642d93be61c30.tar.lz dexon-b39042db5672e830ddec41ea97c642d93be61c30.tar.xz dexon-b39042db5672e830ddec41ea97c642d93be61c30.tar.zst dexon-b39042db5672e830ddec41ea97c642d93be61c30.zip |
core, miner: implemented canary
Diffstat (limited to 'core')
-rw-r--r-- | core/canary.go | 28 |
1 files changed, 28 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 +} |