LXR qemu/tests/tcg/cris/libc/check

   1/* Check that TRT happens when error on too many opened files.
   2#notarget: cris*-*-elf
   3#sim: --sysroot=@exedir@
   4*/
   5#include <stddef.h>
   6#include <stdlib.h>
   7#include <stdio.h>
   8#include <unistd.h>
   9#include <errno.h>
  10#include <limits.h>
  11#include <sys/types.h>
  12#include <sys/stat.h>
  13#include <fcntl.h>
  14#include <string.h>
  15
  16int main (int argc, char *argv[])
  17{
  18  int i;
  19  int filemax;
  20
  21#ifdef OPEN_MAX
  22  filemax = OPEN_MAX;
  23#else
  24  filemax = sysconf (_SC_OPEN_MAX);
  25#endif
  26
  27  char *fn = malloc (strlen (argv[0]) + 2);
  28  if (fn == NULL)
  29    abort ();
  30  strcpy (fn, "/");
  31  strcat (fn, argv[0]);
  32
  33  for (i = 0; i < filemax + 1; i++)
  34    {
  35      if (open (fn, O_RDONLY) < 0)
  36        {
  37          /* Shouldn't happen too early.  */
  38          if (i < filemax - 3 - 1)
  39            {
  40              fprintf (stderr, "i: %d\n", i);
  41              abort ();
  42            }
  43          if (errno != EMFILE)
  44            {
  45              perror ("open");
  46              abort ();
  47            }
  48          goto ok;
  49        }
  50    }
  51  abort ();
  52
  53ok:
  54  printf ("pass\n");
  55  exit (0);
  56}
  57