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Merge pull request #1522 from obscuren/genesis-block-check

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core: check genesis block before writeout
This commit is contained in:
Jeffrey Wilcke 2015-07-25 08:10:08 -07:00
commit f6097f4a0a
1 changed files with 4 additions and 0 deletions
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4
core/genesis.go
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@ -82,6 +82,10 @@ func WriteGenesisBlock(stateDb, blockDb common.Database, reader io.Reader) (*typ
}, nil, nil, nil) }, nil, nil, nil)
block.Td = difficulty block.Td = difficulty
if block := GetBlockByHash(blockDb, block.Hash()); block != nil {
return nil, fmt.Errorf("Block %x already in database", block.Hash())
}
statedb.Sync() statedb.Sync()
err = WriteBlock(blockDb, block) err = WriteBlock(blockDb, block)