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root / tests / tcg / cris / check_openpf5.c @ c09015dd

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/* Check that TRT happens when error on too many opened files.
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#notarget: cris*-*-elf
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#sim: --sysroot=@exedir@
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*/
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#include <stddef.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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#include <limits.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <string.h>
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int main (int argc, char *argv[])
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{
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  int i;
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  int filemax;
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#ifdef OPEN_MAX
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  filemax = OPEN_MAX;
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#else
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  filemax = sysconf (_SC_OPEN_MAX);
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#endif
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  char *fn = malloc (strlen (argv[0]) + 2);
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  if (fn == NULL)
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    abort ();
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  strcpy (fn, "/");
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  strcat (fn, argv[0]);
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  for (i = 0; i < filemax + 1; i++)
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    {
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      if (open (fn, O_RDONLY) < 0)
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        {
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          /* Shouldn't happen too early.  */
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          if (i < filemax - 3 - 1)
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            {
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              fprintf (stderr, "i: %d\n", i);
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              abort ();
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            }
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          if (errno != EMFILE)
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            {
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              perror ("open");
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              abort ();
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            }
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          goto ok;
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        }
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    }
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  abort ();
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ok:
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  printf ("pass\n");
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  exit (0);
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}