Function MyMapViewOfFile

src/pakpatch.cc:239–270

}

HANDLE WINAPI MyMapViewOfFile(_In_ HANDLE hFileMappingObject,
                              _In_ DWORD dwDesiredAccess,
                              _In_ DWORD dwFileOffsetHigh,
                              _In_ DWORD dwFileOffsetLow,
                              _In_ SIZE_T dwNumberOfBytesToMap) {
  if (hFileMappingObject == resources_pak_map) {
    // Modify it to be modifiable.
    LPVOID buffer =
        RawMapViewOfFile(hFileMappingObject, FILE_MAP_COPY, dwFileOffsetHigh,
                         dwFileOffsetLow, dwNumberOfBytesToMap);

    // No more hook needed.
    resources_pak_map = nullptr;
    DetourTransactionBegin();
    DetourUpdateThread(GetCurrentThread());
    DetourDetach(reinterpret_cast<LPVOID*>(&RawMapViewOfFile),
                 reinterpret_cast<void*>(MyMapViewOfFile));
    auto status = DetourTransactionCommit();
    if (status != NO_ERROR) {
      DebugLog(L"Unhook RawMapViewOfFile failed {}", status);
    }

    if (buffer) {
      PatchResourcesPak(static_cast<uint8_t*>(buffer));
    }

    return buffer;
  }

  return RawMapViewOfFile(hFileMappingObject, dwDesiredAccess, dwFileOffsetHigh,
                          dwFileOffsetLow, dwNumberOfBytesToMap);
}

// Identify `resources.pak` where it is mapped, by querying the handle, rather
// than where it is opened. Chrome maps the pak with