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eth: ensure from<to when tracing chain (credits Chen Nan via bugbounty)

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Martin Holst Swende 2018-08-21 09:48:53 +02:00
parent 6d1e292eef
commit 106d196ec4
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1 changed files with 3 additions and 0 deletions
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3
eth/api_tracer.go
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@ -119,6 +119,9 @@ func (api *PrivateDebugAPI) TraceChain(ctx context.Context, start, end rpc.Block
if to == nil {
return nil, fmt.Errorf("end block #%d not found", end)
}
if from.Number().Cmp(to.Number()) >= 0 {
return nil, fmt.Errorf("end block (#%d) needs to come after start block (#%d)", end, start)
}
return api.traceChain(ctx, from, to, config)
}