public static void Main(string[] args)
{
string outFile = @"D:\utxo.dat";
UnspentTxOutList utxo = new UnspentTxOutList();
Hash lastBlockHash = null;
if (File.Exists(outFile))
{
using (FileStream fs = new FileStream(outFile, FileMode.Open))
{
BinaryReader br = new BinaryReader(fs);
lastBlockHash = br.ReadBytes(32);
utxo = UnspentTxOutList.FromStream(fs);
}
}
BlockFileReader blockDb = new BlockFileReader();
Block_Disk b;
Block lastBlock = null;
while ((b = blockDb.getNext()) != null)
{
lastBlock = b;
if (lastBlockHash != null && !b.prev_block.Equals(lastBlockHash))
continue;
lastBlockHash = null;
foreach (Transaction tx in b.txns)
{
foreach (TxIn txin in tx.inputs)
{
if (txin.prevOutIndex == 0xFFFFFFFF) //coinbase
continue;
if (!utxo.TryRemove(new UnspentTxOutHeader(txin.prevOut, txin.prevOutIndex)))
{
Console.WriteLine("Error: Invalid TxIn! Blockchain likely contains orphans.");
return;
}
}
for (uint i = 0; i < tx.outputs.Length; i++)
utxo.Add(new UnspentTxOutHeader(tx.Hash, i), tx.outputs[i]);
}
}
using (FileStream fs = new FileStream(outFile, FileMode.Create))
{
BinaryWriter bw = new BinaryWriter(fs);
bw.Write(lastBlock.Hash, 0, 32);
utxo.Write(fs);
}
}
public static void Main(string[] args)
{
BlockFileReader blocks = new BlockFileReader();
Block_Disk b;
Hash prevHash = new Byte[32];
while ((b = blocks.getNext()) != null) {
if (!b.prev_block.Equals(prevHash))
{
Console.WriteLine("Orphan found in blk" + blocks.blockFileNum.ToString("D5") + ".dat");
break;
}
prevHash = b.Hash;
}
Console.WriteLine("Reached end of block database.");
Console.ReadLine();
}