mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 15:30:07 +00:00
52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
/* futimes -- change access and modification times of open file. Linux version.
|
|
Copyright (C) 2002-2017 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)
|