mirror of
https://github.com/TrinityCore/TrinityCore.git
synced 2026-01-22 18:15:31 +01:00
82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
/*
|
|
* Copyright (C) 2012-2014 Arctium Emulation <http://arctium.org>
|
|
* Copyright (C) 2008-2018 TrinityCore <https://www.trinitycore.org/>
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* asize_t with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "Patcher.hpp"
|
|
|
|
namespace Connection_Patcher
|
|
{
|
|
Patcher::Patcher(boost::filesystem::path file)
|
|
: filePath(file)
|
|
{
|
|
ReadFile();
|
|
binaryType = Helper::GetBinaryType(binary);
|
|
}
|
|
|
|
void Patcher::ReadFile()
|
|
{
|
|
std::ifstream ifs(filePath.string(), std::ifstream::binary);
|
|
if (!ifs)
|
|
throw std::runtime_error("could not open " + filePath.string());
|
|
|
|
binary.clear();
|
|
ifs >> std::noskipws;
|
|
ifs.seekg(0, std::ios_base::end);
|
|
binary.reserve(ifs.tellg());
|
|
ifs.seekg(0, std::ios_base::beg);
|
|
|
|
std::copy(std::istream_iterator<unsigned char>(ifs), std::istream_iterator<unsigned char>(), std::back_inserter(binary));
|
|
}
|
|
|
|
void Patcher::WriteFile(boost::filesystem::path const& path)
|
|
{
|
|
std::ofstream ofs(path.string(), std::ofstream::binary);
|
|
if (!ofs)
|
|
throw std::runtime_error("could not open " + path.string());
|
|
|
|
ofs << std::noskipws;
|
|
|
|
std::copy(binary.begin(), binary.end(), std::ostream_iterator<unsigned char>(ofs));
|
|
}
|
|
|
|
void Patcher::Patch(std::vector<unsigned char> const& bytes, std::vector<unsigned char> const& pattern)
|
|
{
|
|
if (binary.size() < pattern.size())
|
|
throw std::logic_error("pattern larger than binary");
|
|
|
|
if (pattern.empty())
|
|
return;
|
|
|
|
for (size_t const offset : Helper::SearchOffset(binary, pattern))
|
|
{
|
|
std::cout << "Found offset " << offset << std::endl;
|
|
|
|
if (offset != 0 && binary.size() >= bytes.size())
|
|
for (size_t i = 0; i < bytes.size(); i++)
|
|
binary[offset + i] = bytes[i];
|
|
}
|
|
}
|
|
|
|
void Patcher::Finish(boost::filesystem::path out)
|
|
{
|
|
if (boost::filesystem::exists(out))
|
|
boost::filesystem::remove(out);
|
|
|
|
WriteFile(out);
|
|
}
|
|
}
|