Function extractFile

source/util/unzip.cpp:114–158

namespace inst::zip {
    bool extractFile(const std::string filename, const std::string destination) {
        unzFile unz = unzOpen(filename.c_str());

        int i = 0;
        for (;;) {
            int code;
            if (i == 0) {
                code = unzGoToFirstFile(unz);
            } else {
                code = unzGoToNextFile(unz);
            }
            i++;

            if (code == UNZ_END_OF_LIST_OF_FILE) {
                break;
            } else {
                unz_file_pos pos;
                unzGetFilePos(unz, &pos);
            }

            unz_file_info_s * fileInfo = _getFileInfo(unz);

            std::string fileName = destination;
            fileName += _getFullFileName(unz, fileInfo);

            if (fileName.back() != '/') {
                int result = _extractFile(fileName.c_str(), unz, fileInfo);
                if (result < 0) {
                    free(fileInfo);
                    unzClose(unz);
                    return false;
                }
            }

            free(fileInfo);
        }

        if (i <= 0) {
            unzClose(unz);
            return false;
        }

        unzClose(unz);
        return true;
    }
}