问使用libzip将多个文件从缓冲区添加到ZIP存档

EN

bool push_files(zip_t* za) {
  for (int i = 0; i < 10; i++) {
    // Generate data
    std::stringstream ss;
    ss << "Test file #" << i;
    std::string a = ss.str();

    zip_source_t* source = zip_source_buffer(za, a.c_str(), a.size(), 0);

    if (source == NULL) {
      std::cerr << "error creating source: " << zip_strerror(za) << std::endl;
      return false;
    }

    // Add buffer with filename
    std::stringstream fname;
    fname << "TEST-" << i;
    a = fname.str();

    if (zip_file_add(za, a.c_str(), source, ZIP_FL_ENC_UTF_8) < 0) {
      std::cerr << "error adding source: " << zip_strerror(za) << std::endl;
      return false;
    }
  }
  return true;
}

int main() {
  zip_source_t* src;
  zip_error_t error;
  zip_t* za;

  zip_error_init(&error);

  if ((src = zip_source_buffer_create(NULL, 0, 1, &error)) == NULL) {
    std::cerr << "can't create source: " << zip_error_strerror(&error) << std::endl;
    zip_error_fini(&error);
    return 1;
  }

  if ((za = zip_open_from_source(src, ZIP_TRUNCATE, &error)) == NULL) {
    std::cerr << "can't open zip from source: " << zip_error_strerror(&error) << std::endl;
    zip_source_free(src);
    zip_error_fini(&error);
    return 1;
  }

  zip_error_fini(&error);

  zip_source_keep(src);

  if (!push_files(za))
    return -1;

  if (zip_close(za) < 0) {
    std::cerr << "can't close zip archive" << zip_strerror(za) << std::endl;
    return 1;
  }

  // ... omissis, save archive to file as in in-memory.c
}