sysdeps/unix/stime.c

   1 /* Copyright (C) 1992, 1996 Free Software Foundation, Inc.
   2 This file is part of the GNU C Library.
   3
   4 The GNU C Library is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 License, or (at your option) any later version.
   8
   9 The GNU C Library is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <errno.h>
  20 #include <sys/time.h>
  21
  22 /* Set the system clock to *WHEN.  */
  23
  24 int
  25 stime (when)
  26      const time_t *when;
  27 {
  28   struct timeval tv;
  29
  30   if (when == NULL)
  31     {
  32       __set_errno (EINVAL);
  33       return -1;
  34     }
  35
  36   tv.tv_sec = *when;
  37   tv.tv_usec = 0;
  38   return __settimeofday (&tv, (struct timezone *) 0);
  39 }