sim/testsuite/cris/c/openpf1.c

   1 /* Check that --sysroot is applied to open(2).
   2 #sim: --sysroot=$pwd
   3
   4    We assume, with EXE being the name of the executable:
   5    - The simulator executes with cwd the same directory where the executable
   6      is located (also argv[0] contains a plain filename without directory
   7      components -or- argv[0] contains the full non-sysroot path to EXE).
   8    - There's no /EXE on the host file system.  */
   9
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <errno.h>
  14 int main (int argc, char *argv[])
  15 {
  16   char *fnam = argv[0];
  17   FILE *f;
  18   if (argv[0][0] != '/')
  19     {
  20       fnam = malloc (strlen (argv[0]) + 2);
  21       if (fnam == NULL)
  22         abort ();
  23       strcpy (fnam, "/");
  24       strcat (fnam, argv[0]);
  25     }
  26   else
  27     fnam = strrchr (argv[0], '/');
  28
  29   f = fopen (fnam, "rb");
  30   if (f == NULL)
  31     abort ();
  32   fclose (f);
  33
  34   /* Cover another execution path.  */
  35   if (fopen ("/nonexistent", "rb") != NULL
  36       || errno != ENOENT)
  37     abort ();
  38   printf ("pass\n");
  39   return 0;
  40 }