Method launch_client

include/process/ssl/gtest.hpp:342–380

* Launches a test SSL client as a subprocess connecting to the * server. * * The subprocess calls the 'ssl-client' binary with the provided * environment. * * @param environment The SSL environment variables to launch the * SSL client subprocess with. * @param use_ssl_socket Whether the SSL client will try to connect * using an SSL socket or a POLL socket. * @

   * @return Subprocess if successful otherwise an Error.
   */
  Try<process::Subprocess> launch_client(
      const std::map<std::string, std::string>& environment,
      const Option<std::string>& hostname,
      const net::IP& ip,
      uint16_t port,
      bool use_ssl_socket)
  {
    // Set up arguments to be passed to the 'client-ssl' binary.
    std::vector<std::string> argv = {
      "ssl-client",
      "--use_ssl=" + stringify(use_ssl_socket),
      "--server=" + stringify(ip),
      "--port=" + stringify(port),
      "--data=" + data};

    if (hostname.isSome()) {
      argv.push_back("--server_hostname=" + hostname.get());
    }

    Result<std::string> path = os::realpath(BUILD_DIR);
    if (!path.isSome()) {
      return Error("Could not establish build directory path");
    }

    // Explicitly set `LIBPROCESS_IP` in the subprocess to the same IP that was
    // used to generate the hostname for SSL certificates. This ensures that
    // certificate verification can succeed.
    std::map<std::string, std::string> full_environment(environment);
    full_environment["LIBPROCESS_IP"] = stringify(process::address().ip);

    return process::subprocess(
        path::join(path.get(), "ssl-client"),
        argv,
        process::Subprocess::PIPE(),
        process::Subprocess::PIPE(),
        process::Subprocess::FD(STDERR_FILENO),
        nullptr,
        full_environment);
  }

  /**
   * Launches a test SSL client as a subprocess connecting to the