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| author | Jeffrey Wilcke <jeffrey@ethereum.org> | 2015-07-25 23:10:08 +0800 |
|---|---|---|
| committer | Jeffrey Wilcke <jeffrey@ethereum.org> | 2015-07-25 23:10:08 +0800 |
| commit | f6097f4a0abd6d48f55b2f16048fcbb73e170fca (patch) | |
| tree | f18ec053085acb9c7c0e0dee84b40e55ea49a71a | |
| parent | d4428cc77ff7096a099fc15b85785f47c9d18387 (diff) | |
| parent | 0c718afe9014f89c49eb1c762d42735f00b03a33 (diff) | |
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Merge pull request #1522 from obscuren/genesis-block-check
core: check genesis block before writeout
| -rw-r--r-- | core/genesis.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/core/genesis.go b/core/genesis.go index 7d3727b82..a88e88ea8 100644 --- a/core/genesis.go +++ b/core/genesis.go @@ -82,6 +82,10 @@ func WriteGenesisBlock(stateDb, blockDb common.Database, reader io.Reader) (*typ }, nil, nil, nil) block.Td = difficulty + if block := GetBlockByHash(blockDb, block.Hash()); block != nil { + return nil, fmt.Errorf("Block %x already in database", block.Hash()) + } + statedb.Sync() err = WriteBlock(blockDb, block) |