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29 lines
922 B
29 lines
922 B
10 years ago
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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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jeff = common.HexToAddress("9d38997c624a71b21278389ea2fdc460d000e4b2")
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vitalik = common.HexToAddress("b1e570be07eaa673e4fd0c8265b64ef739385709")
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christoph = common.HexToAddress("529bc43a5d93789fa28de1961db6a07e752204ae")
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gav = common.HexToAddress("e3e942b2aa524293c84ff6c7f87a6635790ad5e4")
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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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