Mutual auth with libcurl

mutual.cpp

    const char *certFile = "C:/mutual/cert.pem";
    const char *keyFile = "C:/mutual/key.pem";
    const char *cacertsFile = "C:/mutual/ca.pem";
    CURL *curl;
    CURLcode res;
    curl_global_init(CURL_GLOBAL_DEFAULT);

    curl = curl_easy_init();
    if(curl) {
      curl_easy_setopt(curl, CURLOPT_VERBOSE, 2L);
      curl_easy_setopt(curl, CURLOPT_URL, "https://localhost:8000");

      // Mutual auth
      curl_easy_setopt(curl, CURLOPT_SSLCERTTYPE, "PEM");
      curl_easy_setopt(curl, CURLOPT_SSLKEYTYPE, "PEM");
      curl_easy_setopt(curl, CURLOPT_SSLCERT, "C:/mutual/cert.pem");;
      curl_easy_setopt(curl, CURLOPT_SSLKEY, "C:/mutual/key.pem");
      curl_easy_setopt(curl, CURLOPT_CAINFO, "C:/mutual/ca.pem");
      curl_easy_setopt(curl, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1_2 |
                   CURL_SSLVERSION_MAX_DEFAULT);
      curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
      curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);

      // Perform the request, res will get the return code
      res = curl_easy_perform(curl);
      // Check for errors
      if(res != CURLE_OK) {
        fprintf(stderr, "curl_easy_perform() failed: %s\n",
                curl_easy_strerror(res));
      } else {
        std::cout << "curl OK" << std::endl;
      }
      if(res == CURLE_OK) {
        std::cout << "curl OK1" << std::endl;
      }

      // always cleanup
      curl_easy_cleanup(curl);
    }
    curl_global_cleanup();
  }