Function pipe_cloexec

src/common/compat.cc:113–145

} 

int pipe_cloexec(int pipefd[2], int flags)
{
#if defined(HAVE_PIPE2)
  return pipe2(pipefd, O_CLOEXEC | flags);
#else
  if (pipe(pipefd) == -1)
    return -1;

#  ifdef _WIN32
  return 0;
#  else
  /*
   * The old-fashioned, race-condition prone way that we have to fall
   * back on if pipe2 does not exist.
   */
  if (fcntl(pipefd[0], F_SETFD, FD_CLOEXEC) < 0) {
    goto fail;
  }

  if (fcntl(pipefd[1], F_SETFD, FD_CLOEXEC) < 0) {
    goto fail;
  }

  return 0;

fail:
  int save_errno = errno;
  VOID_TEMP_FAILURE_RETRY(close(pipefd[0]));
  VOID_TEMP_FAILURE_RETRY(close(pipefd[1]));
  return (errno = save_errno, -1);
#  endif
#endif
}


int socket_cloexec(int domain, int type, int protocol)