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Reject height 1 reorganization

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jl777
2018-06-27 08:43:08 -11:00
parent 2d28ad9c6f
commit e7433b08e5
1 changed files with 3 additions and 1 deletions
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4
src/main.cpp
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@@ -4060,7 +4060,9 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta
// Don't accept any forks from the main chain prior to last checkpoint // Don't accept any forks from the main chain prior to last checkpoint
CBlockIndex* pcheckpoint = Checkpoints::GetLastCheckpoint(chainParams.Checkpoints()); CBlockIndex* pcheckpoint = Checkpoints::GetLastCheckpoint(chainParams.Checkpoints());
int32_t notarized_height; int32_t notarized_height;
if ( nHeight > 1 ) if ( nHeight == 1 && chainActive.Tip() != 0 && chainActive.Tip()->nHeight > 1 )
return(false)
if ( nHeight != 0 )
{ {
if ( pcheckpoint != 0 && nHeight < pcheckpoint->nHeight ) if ( pcheckpoint != 0 && nHeight < pcheckpoint->nHeight )
return state.DoS(1, error("%s: forked chain older than last checkpoint (height %d) vs %d", __func__, nHeight,pcheckpoint->nHeight)); return state.DoS(1, error("%s: forked chain older than last checkpoint (height %d) vs %d", __func__, nHeight,pcheckpoint->nHeight));