1  /* BZ 11039 */
       2  #include <unistd.h>
       3  #include <stdio.h>
       4  #include <stdlib.h>
       5  
       6  static int
       7  one_test (const char *fmt, int argc, char *argv[], int expected[argc - 1])
       8  {
       9    int res = 0;
      10    for (int i = 0; i < argc - 1; ++i)
      11      {
      12        rewind (stderr);
      13        if (ftruncate (fileno (stderr), 0) != 0)
      14  	{
      15  	  puts ("cannot truncate file");
      16  	  return 1;
      17  	}
      18  
      19        int c = getopt (argc, argv, fmt);
      20        if (c != expected[i])
      21  	{
      22  	  printf ("format '%s' test %d failed: expected '%c', got '%c'\n",
      23  		  fmt, i, expected[i], c);
      24  	  res = 1;
      25  	}
      26        if (ftell (stderr) == 0)
      27  	{
      28  	  printf ("format '%s' test %d failed: not printed to stderr\n",
      29  		  fmt, i);
      30  	  res = 1;
      31  	}
      32      }
      33  
      34    return res;
      35  }
      36  
      37  
      38  static int
      39  do_test (void)
      40  {
      41    char fname[] = "/tmp/bug-getopt2.XXXXXX";
      42    int fd = mkstemp (fname);
      43    if (fd == -1)
      44      {
      45        printf ("mkstemp failed: %m\n");
      46        return 1;
      47      }
      48    close (fd);
      49  
      50    if (freopen (fname, "w+", stderr) == NULL)
      51      {
      52        puts ("cannot redirect stderr");
      53        return 1;
      54      }
      55  
      56    remove (fname);
      57  
      58    optind = 0;
      59    int ret = one_test ("+a", 2,
      60  		      (char *[2]) { (char *) "bug-getopt2", (char *) "-+" },
      61  		      (int [1]) { '?' });
      62  
      63    optind = 1;
      64    ret |= one_test ("+a", 2,
      65  		   (char *[2]) { (char *) "bug-getopt2", (char *) "-+" },
      66  		   (int [1]) { '?' });
      67  
      68    if (ret == 0)
      69      puts ("all OK");
      70  
      71    return ret;
      72  }
      73  
      74  #define TEST_FUNCTION do_test ()
      75  #include "../test-skeleton.c"