Value dumpbootstrap(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 2)
throw runtime_error(
"dumpbootstrap \"destination\" \"blocks\"\n"
"\nCreates a bootstrap format block dump of the blockchain in destination, which can be a directory or a path with filename, up to the given block number.");
string strDest = params[0].get_str();
int nBlocks = params[1].get_int();
if (nBlocks < 0 || nBlocks > nBestHeight)
throw runtime_error("Block number out of range.");
boost::filesystem::path pathDest(strDest);
if (boost::filesystem::is_directory(pathDest))
pathDest /= "bootstrap.dat";
try {
FILE* file = fopen(pathDest.string().c_str(), "wb");
if (!file)
throw JSONRPCError(RPC_MISC_ERROR, "Error: Could not open bootstrap file for writing.");
CAutoFile fileout = CAutoFile(file, SER_DISK, CLIENT_VERSION);
if (!fileout)
throw JSONRPCError(RPC_MISC_ERROR, "Error: Could not open bootstrap file for writing.");
for (int nHeight = 0; nHeight <= nBlocks; nHeight++)
{
CBlock block;
CBlockIndex* pblockindex = FindBlockByHeight(nHeight);
block.ReadFromDisk(pblockindex, true);
fileout << FLATDATA(Params().MessageStart()) << fileout.GetSerializeSize(block) << block;
}
} catch(const boost::filesystem::filesystem_error &e) {
throw JSONRPCError(RPC_MISC_ERROR, "Error: Bootstrap dump failed!");
}
return Value::null;
}
