int
expand_and_execute (const char *program, const char **options)
{
  wordexp_t result;
  pid_t pid
  int status, i;

  /* Expand the string for the program to run.  */
  switch (wordexp (program, &result, 0))
    {
    case 0:			/* Successful.  */
      break;
    case WRDE_NOSPACE:
      /* If the error was WRDE_NOSPACE,
         then perhaps part of the result was allocated.  */
      wordfree (&result);
    default:                    /* Some other error.  */
      return -1;
    }

  /* Expand the strings specified for the arguments.  */
  for (i = 0; options[i] != NULL; i++)
    {
      if (wordexp (options[i], &result, WRDE_APPEND))
        {
          wordfree (&result);
          return -1;
        }
    }

  pid = fork ();
  if (pid == 0)
    {
      /* This is the child process.  Execute the command. */
      execv (result.we_wordv[0], result.we_wordv);
      exit (EXIT_FAILURE);
    }
  else if (pid < 0)
    /* The fork failed.  Report failure.  */
    status = -1;
  else
    /* This is the parent process.  Wait for the child to complete.  */
    if (waitpid (pid, &status, 0) != pid)
      status = -1;

  wordfree (&result);
  return status;
}