Method GetMappedDriveFilePath

PathCopyCopy/src/PluginUtils.cpp:213–235

Checks if the given file resides on a mapped network drive. If it does, returns its corresponding network path. Ex: N:\Data\File.txt -> \\server\share\Data\File.txt @param p_rFilePath Local file path. Upon exit, will contain network path. @return true if the file was on a mapped network drive and we fetched its network path.

    // @return true if the file was on a mapped network drive and we fetched its network path.
    //
    bool PluginUtils::GetMappedDriveFilePath(std::wstring& p_rFilePath)
    {
        // WNetGetUniversalName allows us to get the network path
        // if file is on a mapped drive.
        bool converted = false;
        DWORD bufferSize = INITIAL_BUFFER_SIZE;
        std::vector<char> vBuffer;
        DWORD ret = ERROR_MORE_DATA;
        while (ret == ERROR_MORE_DATA) {
            vBuffer.resize(bufferSize, '\0');
            ret = ::WNetGetUniversalNameW(p_rFilePath.c_str(),
                                          UNIVERSAL_NAME_INFO_LEVEL,
                                          vBuffer.data(),
                                          &bufferSize);
        }
        if (ret == NO_ERROR) {
            // Got UNC path, return it.
#pragma warning(suppress: 26490) // No choice but to use reinterpret_cast here, can't change the Win32 API
            p_rFilePath.assign(reinterpret_cast<UNIVERSAL_NAME_INFOW*>(vBuffer.data())->lpUniversalName);
            converted = true;
        }
        return converted;
    }

    //
    // Checks if the given file resides in a directory in a network share.