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core/forkid: fix off-by-one bug (#22879)

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* forkid: added failing test

* forkid: fixed off-by-one bug
This commit is contained in:
Shane Bammel 2021-05-18 03:37:18 -05:00 committed by GitHub
parent b7a91663ab
commit 32c1ed8a9c
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2 changed files with 5 additions and 1 deletions
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2
core/forkid/forkid.go
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@ -155,7 +155,7 @@ func newFilter(config *params.ChainConfig, genesis common.Hash, headfn func() ui
for i, fork := range forks {
// If our head is beyond this fork, continue to the next (we have a dummy
// fork of maxuint64 as the last item to always fail this check eventually).
if head > fork {
if head >= fork {
continue
}
// Found the first unpassed fork block, check if our current state matches

4
core/forkid/forkid_test.go
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@ -163,6 +163,10 @@ func TestValidation(t *testing.T) {
// neither forks passed at neither nodes, they may mismatch, but we still connect for now.
{7279999, ID{Hash: checksumToBytes(0xa00bc324), Next: math.MaxUint64}, nil},
// Local is mainnet exactly on Petersburg, remote announces Byzantium + knowledge about Petersburg. Remote
// is simply out of sync, accept.
{7280000, ID{Hash: checksumToBytes(0xa00bc324), Next: 7280000}, nil},
// Local is mainnet Petersburg, remote announces Byzantium + knowledge about Petersburg. Remote
// is simply out of sync, accept.
{7987396, ID{Hash: checksumToBytes(0xa00bc324), Next: 7280000}, nil},