lbrycrd/src/addrdb.cpp

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// Copyright (c) 2009-2010 Satoshi Nakamoto
2018-07-27 00:36:45 +02:00
// Copyright (c) 2009-2018 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <addrdb.h>
#include <addrman.h>
#include <chainparams.h>
#include <clientversion.h>
#include <hash.h>
#include <random.h>
#include <streams.h>
#include <tinyformat.h>
scripted-diff: Move util files to separate directory. -BEGIN VERIFY SCRIPT- mkdir -p src/util git mv src/util.h src/util/system.h git mv src/util.cpp src/util/system.cpp git mv src/utilmemory.h src/util/memory.h git mv src/utilmoneystr.h src/util/moneystr.h git mv src/utilmoneystr.cpp src/util/moneystr.cpp git mv src/utilstrencodings.h src/util/strencodings.h git mv src/utilstrencodings.cpp src/util/strencodings.cpp git mv src/utiltime.h src/util/time.h git mv src/utiltime.cpp src/util/time.cpp sed -i 's/<util\.h>/<util\/system\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utilmemory\.h>/<util\/memory\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utilmoneystr\.h>/<util\/moneystr\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utilstrencodings\.h>/<util\/strencodings\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utiltime\.h>/<util\/time\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/BITCOIN_UTIL_H/BITCOIN_UTIL_SYSTEM_H/g' src/util/system.h sed -i 's/BITCOIN_UTILMEMORY_H/BITCOIN_UTIL_MEMORY_H/g' src/util/memory.h sed -i 's/BITCOIN_UTILMONEYSTR_H/BITCOIN_UTIL_MONEYSTR_H/g' src/util/moneystr.h sed -i 's/BITCOIN_UTILSTRENCODINGS_H/BITCOIN_UTIL_STRENCODINGS_H/g' src/util/strencodings.h sed -i 's/BITCOIN_UTILTIME_H/BITCOIN_UTIL_TIME_H/g' src/util/time.h sed -i 's/ util\.\(h\|cpp\)/ util\/system\.\1/g' src/Makefile.am sed -i 's/utilmemory\.\(h\|cpp\)/util\/memory\.\1/g' src/Makefile.am sed -i 's/utilmoneystr\.\(h\|cpp\)/util\/moneystr\.\1/g' src/Makefile.am sed -i 's/utilstrencodings\.\(h\|cpp\)/util\/strencodings\.\1/g' src/Makefile.am sed -i 's/utiltime\.\(h\|cpp\)/util\/time\.\1/g' src/Makefile.am sed -i 's/-> util ->/-> util\/system ->/' test/lint/lint-circular-dependencies.sh sed -i 's/src\/util\.cpp/src\/util\/system\.cpp/g' test/lint/lint-format-strings.py test/lint/lint-locale-dependence.sh sed -i 's/src\/utilmoneystr\.cpp/src\/util\/moneystr\.cpp/g' test/lint/lint-locale-dependence.sh sed -i 's/src\/utilstrencodings\.\(h\|cpp\)/src\/util\/strencodings\.\1/g' test/lint/lint-locale-dependence.sh sed -i 's/src\\utilstrencodings\.cpp/src\\util\\strencodings\.cpp/' build_msvc/libbitcoinconsensus/libbitcoinconsensus.vcxproj -END VERIFY SCRIPT-
2018-10-23 00:51:11 +02:00
#include <util/system.h>
namespace {
template <typename Stream, typename Data>
bool SerializeDB(Stream& stream, const Data& data)
{
// Write and commit header, data
try {
CHashWriter hasher(SER_DISK, CLIENT_VERSION);
stream << Params().MessageStart() << data;
hasher << Params().MessageStart() << data;
stream << hasher.GetHash();
} catch (const std::exception& e) {
return error("%s: Serialize or I/O error - %s", __func__, e.what());
}
return true;
}
template <typename Data>
bool SerializeFileDB(const std::string& prefix, const fs::path& path, const Data& data)
{
// Generate random temporary filename
unsigned short randv = 0;
GetRandBytes((unsigned char*)&randv, sizeof(randv));
std::string tmpfn = strprintf("%s.%04x", prefix, randv);
// open temp output file, and associate with CAutoFile
fs::path pathTmp = GetDataDir() / tmpfn;
FILE *file = fsbridge::fopen(pathTmp, "wb");
CAutoFile fileout(file, SER_DISK, CLIENT_VERSION);
if (fileout.IsNull())
return error("%s: Failed to open file %s", __func__, pathTmp.string());
// Serialize
if (!SerializeDB(fileout, data)) return false;
if (!FileCommit(fileout.Get()))
return error("%s: Failed to flush file %s", __func__, pathTmp.string());
fileout.fclose();
// replace existing file, if any, with new file
if (!RenameOver(pathTmp, path))
return error("%s: Rename-into-place failed", __func__);
return true;
}
template <typename Stream, typename Data>
bool DeserializeDB(Stream& stream, Data& data, bool fCheckSum = true)
{
try {
CHashVerifier<Stream> verifier(&stream);
// de-serialize file header (network specific magic number) and ..
unsigned char pchMsgTmp[4];
verifier >> pchMsgTmp;
// ... verify the network matches ours
if (memcmp(pchMsgTmp, Params().MessageStart(), sizeof(pchMsgTmp)))
return error("%s: Invalid network magic number", __func__);
// de-serialize data
verifier >> data;
// verify checksum
if (fCheckSum) {
uint256 hashTmp;
stream >> hashTmp;
if (hashTmp != verifier.GetHash()) {
return error("%s: Checksum mismatch, data corrupted", __func__);
}
}
}
catch (const std::exception& e) {
return error("%s: Deserialize or I/O error - %s", __func__, e.what());
}
return true;
}
template <typename Data>
bool DeserializeFileDB(const fs::path& path, Data& data)
{
// open input file, and associate with CAutoFile
FILE *file = fsbridge::fopen(path, "rb");
CAutoFile filein(file, SER_DISK, CLIENT_VERSION);
if (filein.IsNull())
return error("%s: Failed to open file %s", __func__, path.string());
return DeserializeDB(filein, data);
}
}
CBanDB::CBanDB(fs::path ban_list_path) : m_ban_list_path(std::move(ban_list_path))
{
}
bool CBanDB::Write(const banmap_t& banSet)
{
return SerializeFileDB("banlist", m_ban_list_path, banSet);
}
bool CBanDB::Read(banmap_t& banSet)
{
return DeserializeFileDB(m_ban_list_path, banSet);
}
CAddrDB::CAddrDB()
{
pathAddr = GetDataDir() / "peers.dat";
}
bool CAddrDB::Write(const CAddrMan& addr)
{
return SerializeFileDB("peers", pathAddr, addr);
}
bool CAddrDB::Read(CAddrMan& addr)
{
return DeserializeFileDB(pathAddr, addr);
}
bool CAddrDB::Read(CAddrMan& addr, CDataStream& ssPeers)
{
bool ret = DeserializeDB(ssPeers, addr, false);
if (!ret) {
// Ensure addrman is left in a clean state
addr.Clear();
}
return ret;
}