Subversion Repositories openrisc

/* Check for corner case: readlink of too-long name.

#notarget: cris*-*-elf

*/

#include <unistd.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <errno.h>

#include <stdarg.h>

void bye (const char *s, int i)

{

  fprintf (stderr, "%s: %d\n", s, i);

  fflush (NULL);

  abort ();

}

int main (int argc, char *argv[])

{

  char *buf;

  char buf2[1024];

  int max, i;

  /* We assume this limit is what we see in the simulator as well.  */

#ifdef PATH_MAX

  max = PATH_MAX;

#else

  max = pathconf (argv[0], _PC_PATH_MAX);

#endif

  max *= 10;

  if (max <= 0)

    bye ("path_max", max);

  if ((buf = malloc (max + 1)) == NULL)

    bye ("malloc", 0);

  strcat (buf, argv[0]);

  if (rindex (buf, '/') == NULL)

    strcat (buf, "./");

  for (i = rindex (buf, '/') - buf + 1; i < max; i++)

    buf[i] = 'a';

  buf [i] = 0;

  i = readlink (buf, buf2, sizeof (buf2) - 1);

  if (i != -1)

     bye ("i", i);

  if (errno != ENAMETOOLONG)

    {

      perror (buf);

      bye ("errno", errno);

    }

  printf ("pass\n");

  exit (0);

}