1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/* futimesat -- Change access and modification times of file. Linux version.
Copyright (C) 2005-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
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 <stddef.h>
#include <stdio.h>
#include <string.h>
#include <utime.h>
#include <sys/time.h>
#include <sysdep.h>
/* Change the access time of FILE relative to FD to TVP[0] and
the modification time of FILE to TVP[1]. */
int
futimesat (int fd, const char *file, const struct timeval tvp[2])
{
struct timespec tsp[2];
int result;
if (tvp)
{
if (tvp[0].tv_usec >= 1000000 || tvp[0].tv_usec < 0 ||
tvp[1].tv_usec >= 1000000 || tvp[1].tv_usec < 0)
{
__set_errno (EINVAL);
return -1;
}
TIMEVAL_TO_TIMESPEC (&tvp[0], &tsp[0]);
TIMEVAL_TO_TIMESPEC (&tvp[1], &tsp[1]);
}
result = INLINE_SYSCALL (utimensat, 4, fd, file, tvp ? tsp : NULL, 0);
return result;
}
|
