1  static void do_prepare (void);
       2  #define PREPARE(argc, argv) do_prepare ()
       3  static int do_test (void);
       4  #define TEST_FUNCTION do_test ()
       5  #include "../test-skeleton.c"
       6  
       7  
       8  static char *fname;
       9  
      10  
      11  static void
      12  do_prepare (void)
      13  {
      14    if (create_temp_file ("tst-getopt_long1", &fname) < 0)
      15      {
      16        printf ("cannot create temp file: %m\n");
      17        exit (1);
      18      }
      19  }
      20  
      21  
      22  static const struct option opts[] =
      23    {
      24      { "one", no_argument, NULL, '1' },
      25      { "two", no_argument, NULL, '2' },
      26      { "one-one", no_argument, NULL, '3' },
      27      { "four", no_argument, NULL, '4' },
      28      { "onto", no_argument, NULL, '5' },
      29      { NULL, 0, NULL, 0 }
      30    };
      31  
      32  
      33  static int
      34  do_test (void)
      35  {
      36    if (freopen (fname, "w+", stderr) == NULL)
      37      {
      38        printf ("freopen failed: %m\n");
      39        return 1;
      40      }
      41  
      42    char *argv[] = { (char *) "program", (char *) "--on" };
      43    int argc = 2;
      44  
      45    int c = getopt_long (argc, argv, "12345", opts, NULL);
      46    printf ("return value: %c\n", c);
      47  
      48    rewind (stderr);
      49    char *line = NULL;
      50    size_t len = 0;
      51    if (getline (&line, &len, stderr) < 0)
      52      {
      53        printf ("cannot read stderr redirect: %m\n");
      54        return 1;
      55      }
      56    printf ("message = \"%s\"\n", line);
      57  
      58    static const char expected[] = "\
      59  program: option '--on' is ambiguous; possibilities: '--one' '--one-one' '--onto'\n";
      60  
      61    return c != '?' || strcmp (line, expected) != 0;
      62  }