1 /* Check that --sysroot is applied to open(2).

     2 #sim: --sysroot=@exedir@

     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 (so argv[0] contains a plain filename without directory

     7      components).

     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 

    27   f = fopen (fnam, "rb");

    28   if (f == NULL)

    29     abort ();

    30   close (f);

    31 

    32   /* Cover another execution path.  */

    33   if (fopen ("/nonexistent", "rb") != NULL

    34       || errno != ENOENT)

    35     abort ();

    36   printf ("pass\n");

    37   return 0;

    38 }