/* futimes -- change access and modification times of open file.  Linux version.

   Copyright (C) 2002-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <errno.h>

#include <sysdep.h>

#include <string.h>

#include <time.h>

#include <utime.h>

#include <sys/time.h>

#include <_itoa.h>

#include <fcntl.h>

/* Change the access time of the file associated with FD to TVP[0] and

   the modification time of FILE to TVP[1].

   Starting with 2.6.22 the Linux kernel has the utimensat syscall which

   can be used to implement futimes.  */

int

__futimes (int fd, const struct timeval tvp[2])

{

  /* The utimensat system call expects timespec not timeval.  */

  struct timespec ts[2];

  if (tvp != NULL)

    {

      if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000

          || tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000)

	return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);

      TIMEVAL_TO_TIMESPEC (&tvp[0], &ts[0]);

      TIMEVAL_TO_TIMESPEC (&tvp[1], &ts[1]);

    }

  return INLINE_SYSCALL (utimensat, 4, fd, NULL, tvp ? &ts : NULL, 0);

}

weak_alias (__futimes, futimes)