glibc/sysdeps/unix/sysv/linux/futimens.c

49 lines
1.5 KiB
C

/* Change access and modification times of open file. Linux version.
Copyright (C) 2007-2013 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 <fcntl.h>
#include <string.h>
#include <time.h>
#include <sysdep.h>
/* Change the access time of the file associated with FD to TSP[0] and
the modification time of FILE to TSP[1].
Starting with 2.6.22 the Linux kernel has the utimensat syscall which
can be used to implement futimens. */
int
futimens (int fd, const struct timespec tsp[2])
{
#ifdef __NR_utimensat
if (fd < 0)
{
__set_errno (EBADF);
return -1;
}
return INLINE_SYSCALL (utimensat, 4, fd, NULL, tsp, 0);
#else
__set_errno (ENOSYS);
return -1;
#endif
}
#ifndef __NR_utimensat
stub_warning (futimens)
#endif