Ticket #19060: foo.c

#include <errno.h>
#include <dirent.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>

int
main ()
{
  {
    errno = 0;
    DIR *ret = fdopendir (-1);

    if (ret != NULL)
      printf ("ret = %p\n", ret);
    else if (errno == EBADF)
      printf ("ret = NULL, errno == EBADF\n");
    else
      printf ("ret = NULL, errno == %s\n", strerror (errno));

    assert (ret == NULL && errno == EBADF);
  }

  printf ("OK\n");
}