posix/bug-getopt1.c

   1 /* BZ 11039 */
   2 #include <unistd.h>
   3 #include <stdio.h>
   4
   5 static int
   6 one_test (const char *fmt, int argc, char *argv[], int expected[argc - 1])
   7 {
   8   optind = 1;
   9
  10   int res = 0;
  11   for (int i = 0; i < argc - 1; ++i)
  12     {
  13       rewind (stderr);
  14       if (ftruncate (fileno (stderr), 0) != 0)
  15         {
  16           puts ("cannot truncate file");
  17           return 1;
  18         }
  19
  20       int c = getopt (argc, argv, fmt);
  21       if (c != expected[i])
  22         {
  23           printf ("format '%s' test %d failed: expected '%c', got '%c'\n",
  24                   fmt, i, expected[i], c);
  25           res = 1;
  26         }
  27       if (ftell (stderr) != 0)
  28         {
  29           printf ("format '%s' test %d failed: printed to stderr\n",
  30                   fmt, i);
  31           res = 1;
  32         }
  33     }
  34
  35   return res;
  36 }
  37
  38
  39 static int
  40 do_test (void)
  41 {
  42   char *fname = tmpnam (NULL);
  43   if (fname == NULL)
  44     {
  45       puts ("cannot generate name for temporary file");
  46       return 1;
  47     }
  48
  49   if (freopen (fname, "w+", stderr) == NULL)
  50     {
  51       puts ("cannot redirect stderr");
  52       return 1;
  53     }
  54
  55   remove (fname);
  56
  57   int ret = one_test ("+:a:b", 2,
  58                       (char *[2]) { (char *) "bug-getopt1", (char *) "-a" },
  59                       (int [1]) { ':' });
  60
  61   ret |= one_test ("+:a:b", 3,
  62                    (char *[3]) { (char *) "bug-getopt1", (char *) "-b",
  63                                  (char *) "-a" },
  64                    (int [2]) { 'b', ':' });
  65
  66   if (ret == 0)
  67     puts ("all OK");
  68
  69   return ret;
  70 }
  71
  72 #define TEST_FUNCTION do_test ()
  73 #include "../test-skeleton.c"