/* Copyright (C) 1999-2018 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 <time.h>

#include <sys/time.h>

#include <shlib-compat.h>

/* Set CLOCK to value TP.  */

int

__clock_settime (clockid_t clock_id, const struct timespec *tp)

{

  int retval = -1;

  /* Make sure the time cvalue is OK.  */

  if (tp->tv_nsec < 0 || tp->tv_nsec >= 1000000000)

    {

      __set_errno (EINVAL);

      return -1;

    }

  switch (clock_id)

    {

    case CLOCK_REALTIME:

      {

	struct timeval tv;

	TIMESPEC_TO_TIMEVAL (&tv, tp);

	retval = __settimeofday (&tv, NULL);

      }

      break;

    default:

      __set_errno (EINVAL);

      break;

    }

  return retval;

}

libc_hidden_def (__clock_settime)

versioned_symbol (libc, __clock_settime, clock_settime, GLIBC_2_17);

/* clock_settime moved to libc in version 2.17;

   old binaries may expect the symbol version it had in librt.  */

#if SHLIB_COMPAT (libc, GLIBC_2_2, GLIBC_2_17)

strong_alias (__clock_settime, __clock_settime_2);

compat_symbol (libc, __clock_settime_2, clock_settime, GLIBC_2_2);

#endif