Don't lock up at start when there aren't any free file descriptors.

  return res;

}

static void checkfds(void);

/* Ensure that file descriptors 0, 1 and 2 (stdin, stdout, stderr) are

   open before starting to run.  Otherwise, the first three network

   sockets opened by curl could be used for input sources, downloaded data

   or error logs as they will effectively be stdin, stdout and/or stderr.

*/

static void checkfds(void)

{

#ifdef HAVE_PIPE

         fd[1] == STDIN_FILENO ||

         fd[1] == STDOUT_FILENO ||

         fd[1] == STDERR_FILENO )

    pipe(fd);

    if (pipe(fd) < 0)

      return;	/* Out of handles. This isn't really a big problem now, but

                   will be when we try to create a socket later. */

  close(fd[0]);

  close(fd[1]);

#endif