2015-06-29 13:42:47 +03:00
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package core
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import (
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/state"
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)
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var (
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2015-07-02 12:27:19 +03:00
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jeff = common.HexToAddress("a8edb1ac2c86d3d9d78f96cd18001f60df29e52c")
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vitalik = common.HexToAddress("1baf27b88c48dd02b744999cf3522766929d2b2a")
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christoph = common.HexToAddress("60d11b58744784dc97f878f7e3749c0f1381a004")
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gav = common.HexToAddress("4bb7e8ae99b645c2b7860b8f3a2328aae28bd80a")
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2015-06-29 13:42:47 +03:00
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)
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// Canary will check the 0'd address of the 4 contracts above.
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// If two or more are set to anything other than a 0 the canary
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// dies a horrible death.
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func Canary(statedb *state.StateDB) bool {
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r := new(big.Int)
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r.Add(r, statedb.GetState(jeff, common.Hash{}).Big())
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r.Add(r, statedb.GetState(vitalik, common.Hash{}).Big())
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r.Add(r, statedb.GetState(christoph, common.Hash{}).Big())
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r.Add(r, statedb.GetState(gav, common.Hash{}).Big())
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return r.Cmp(big.NewInt(1)) > 0
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}
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