posix/bug-getopt1.c

   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   optind = 1;
  10
  11   int res = 0;
  12   for (int i = 0; i < argc - 1; ++i)
  13     {
  14       rewind (stderr);
  15       if (ftruncate (fileno (stderr), 0) != 0)
  16         {
  17           puts ("cannot truncate file");
  18           return 1;
  19         }
  20
  21       int c = getopt (argc, argv, fmt);
  22       if (c != expected[i])
  23         {
  24           printf ("format '%s' test %d failed: expected '%c', got '%c'\n",
  25                   fmt, i, expected[i], c);
  26           res = 1;
  27         }
  28       if (ftell (stderr) != 0)
  29         {
  30           printf ("format '%s' test %d failed: printed to stderr\n",
  31                   fmt, i);
  32           res = 1;
  33         }
  34     }
  35
  36   return res;
  37 }
  38
  39
  40 static int
  41 do_test (void)
  42 {
  43   char fname[] = "/tmp/bug-getopt1.XXXXXX";
  44   int fd = mkstemp (fname);
  45   if (fd == -1)
  46     {
  47       printf ("mkstemp failed: %m\n");
  48       return 1;
  49     }
  50   close (fd);
  51
  52   if (freopen (fname, "w+", stderr) == NULL)
  53     {
  54       puts ("cannot redirect stderr");
  55       return 1;
  56     }
  57
  58   remove (fname);
  59
  60   int ret = one_test ("+:a:b", 2,
  61                       (char *[2]) { (char *) "bug-getopt1", (char *) "-a" },
  62                       (int [1]) { ':' });
  63
  64   ret |= one_test ("+:a:b", 3,
  65                    (char *[3]) { (char *) "bug-getopt1", (char *) "-b",
  66                                  (char *) "-a" },
  67                    (int [2]) { 'b', ':' });
  68
  69   if (ret == 0)
  70     puts ("all OK");
  71
  72   return ret;
  73 }
  74
  75 #define TEST_FUNCTION do_test ()
  76 #include "../test-skeleton.c"