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Fixed deref ptr

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This commit is contained in:
obscuren
2014-09-19 13:19:19 +02:00
parent 863785a520
commit 80261c803a
3 changed files with 26 additions and 3 deletions
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ethchain/block_chain.go
+6 -2
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@@ -164,6 +164,7 @@ func (bc *BlockChain) setLastBlock() {
bc.Add(bc.genesisBlock)
fk := append([]byte("bloom"), bc.genesisBlock.Hash()...)
bc.Ethereum.Db().Put(fk, make([]byte, 255))
bc.CurrentBlock = bc.genesisBlock
}
// Set the last know difficulty (might be 0x0 as initial value, Genesis)
@@ -201,10 +202,13 @@ func (bc *BlockChain) GetBlock(hash []byte) *Block {
func (self *BlockChain) GetBlockByNumber(num uint64) *Block {
block := self.CurrentBlock
for ; block.Number.Uint64() != num; block = self.GetBlock(block.PrevHash) {
for ; block != nil; block = self.GetBlock(block.PrevHash) {
if block.Number.Uint64() == num {
break
}
}
if block.Number.Uint64() == 0 && num != 0 {
if block != nil && block.Number.Uint64() == 0 && num != 0 {
return nil
}