#include <stdio.h>

#include <fcntl.h>

#include <stdlib.h>

#include <unistd.h>

#include <dirent.h>

#include <stdbool.h>

#include <string.h>

#include <sys/stat.h>

#ifndef O_NOATIME

# define O_NOATIME	0

#endif

static int

do_test (void)

{

  char fname[] = "/tmp/jXXXXXX";

  int fd = mkstemp (fname);

  if (fd == -1)

    {

      puts ("mkstemp failed");

      return 1;

    }

  write (fd, "hello", 5);

  close (fd);

  struct stat64 st;

  if (stat64 (fname, &st) == -1)

    {

      puts ("first stat failed");

      return 0;

    }

  /* Make sure there is enough time between the creation and the access.  */

  sleep (2);

  fd = open (fname, O_RDONLY | O_NOATIME);

  if (fd == -1)

    {

      puts ("first open failed");

      return 1;

    }

  char buf[5];

  read(fd, buf, sizeof (buf));

  close(fd);

  struct stat64 st2;

  if (stat64 (fname, &st2) == -1)

    {

      puts ("second stat failed");

      return 0;

    }

  bool no_noatime = false;

#ifdef _STATBUF_ST_NSEC

  if (st.st_atim.tv_sec != st2.st_atim.tv_sec

      || st.st_atim.tv_nsec != st2.st_atim.tv_nsec)

#else

  if (st.st_atime != st2.st_atime)

#endif

    {

      puts ("file atime changed");

      no_noatime = true;

    }

  unlink(fname);

  strcpy(fname, "/tmp/dXXXXXX");

  char *d = mkdtemp (fname);

  if (d == NULL)

    {

      puts ("mkdtemp failed");

      return 1;

    }

  if (stat64 (d, &st) == -1)

    {

      puts ("third stat failed");

      return 0;

    }

  sleep (2);

  fd = open64 (d, O_RDONLY|O_NDELAY|O_DIRECTORY|O_NOATIME);

  if (fd == -1)

    {

      puts ("second open failed");

      return 1;

    }

  DIR *dir = fdopendir (fd);

  if (dir == NULL)

    {

      puts ("fdopendir failed");

      return 1;

    }

  struct dirent *de;

  while ((de = readdir (dir)) != NULL)

    ;

  closedir (dir);

  if (stat64 (d, &st2) == -1)

    {

      puts ("fourth stat failed");

      return 0;

    }

#ifdef _STATBUF_ST_NSEC

  if (!no_noatime

      && (st.st_atim.tv_sec != st2.st_atim.tv_sec

	 || st.st_atim.tv_nsec != st2.st_atim.tv_nsec))

#else

  if (!no_noatime && st.st_atime != st2.st_atime)

#endif

    {

      puts ("directory atime changed");

      return 1;

    }

  rmdir(fname);

  return 0;

}

#define TIMEOUT 6

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"