sim/testsuite/cris/c/readlink2.c

   1 /*
   2 #progos: linux
   3 */
   4
   5 #include <unistd.h>
   6 #include <errno.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10
  11 int main (int argc, char *argv[])
  12 {
  13   char buf[1024];
  14   char buf2[1024];
  15   int err;
  16
  17   /* This is a special feature handled in the simulator.  The "42"
  18      should be formed from getpid () if this was a real program.  */
  19   err = readlink ("/proc/42/exe", buf, sizeof (buf));
  20   if (err < 0)
  21     {
  22       if (err == -1 && errno == ENOSYS)
  23         printf ("ENOSYS\n");
  24       printf ("xyzzy\n");
  25       exit (0);
  26     }
  27
  28   /* Don't use an abort in the following; it might cause the printf to
  29      not make it all the way to output and make debugging more
  30      difficult.  */
  31
  32   /* We assume the program is called with no path, so we might need to
  33      prepend it.  */
  34   if (getcwd (buf2, sizeof (buf2)) != buf2)
  35     {
  36       perror ("getcwd");
  37       exit (1);
  38     }
  39
  40   if (argv[0][0] == '/')
  41     {
  42 #ifdef SYSROOTED
  43       if (strchr (argv[0] + 1, '/') != NULL)
  44         {
  45           printf ("%s != %s\n", argv[0], strrchr (argv[0] + 1, '/'));
  46           exit (1);
  47         }
  48 #endif
  49       if (strcmp (argv[0], buf) != 0)
  50         {
  51           printf ("%s != %s\n", buf, argv[0]);
  52           exit (1);
  53         }
  54     }
  55   else if (argv[0][0] != '.')
  56     {
  57       if (buf2[strlen (buf2) - 1] != '/')
  58         strcat (buf2, "/");
  59       strcat (buf2, argv[0]);
  60       if (strcmp (buf2, buf) != 0)
  61         {
  62           printf ("%s != %s\n", buf, buf2);
  63           exit (1);
  64         }
  65     }
  66   else
  67     {
  68       strcat (buf2, argv[0] + 1);
  69       if (strcmp (buf, buf2) != 0)
  70         {
  71           printf ("%s != %s\n", buf, buf2);
  72           exit (1);
  73         }
  74     }
  75
  76   printf ("pass\n");
  77   exit (0);
  78 }
  79
  80