sysdeps/unix/sysv/linux/futimens.c

   1 /* Change access and modification times of open file.  Linux version.
   2    Copyright (C) 2007 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <errno.h>
  21 #include <fcntl.h>
  22 #include <string.h>
  23 #include <time.h>
  24 #include <sysdep.h>
  25
  26
  27 /* Change the access time of the file associated with FD to TSP[0] and
  28    the modification time of FILE to TSP[1].
  29
  30    Starting with 2.6.22 the Linux kernel has the utimensat syscall which
  31    can be used to implement futimens.  */
  32 int
  33 futimens (int fd, const struct timespec tsp[2])
  34 {
  35 #ifdef __NR_utimensat
  36   return INLINE_SYSCALL (utimensat, 4, fd, NULL, tsp, 0);
  37 #else
  38   __set_errno (ENOSYS);
  39   return -1;
  40 #endif
  41 }
  42 #ifndef __NR_utimensat
  43 stub_warning (futimens)
  44 # include <stub-tag.h>
  45 #endif