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
53
54
55
56
57
58
59
60
|
/* futimes -- change access and modification times of open file. Stub version.
Copyright (C) 2002, 2003 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <sysdep.h>
#include <utime.h>
#include <sys/time.h>
#include <stdio-common/_itoa.h>
/* Change the access time of FILE to TVP[0] and
the modification time of FILE to TVP[1], but do not follow symlinks.
The Linux kernel has no futimes() syscall so we use the /proc
filesystem. */
int
__futimes (int fd, const struct timeval tvp[2])
{
static const char selffd[] = "/proc/self/fd/";
char buf[sizeof (selffd) + 3 * sizeof (int)];
buf[sizeof (buf) - 1] = '\0';
char *cp = _itoa_word (fd, buf + sizeof (buf) - 1, 10, 0);
cp = memcpy (cp - sizeof (selffd) + 1, selffd, sizeof (selffd) - 1);
#ifdef __NR_utimes
int result = INLINE_SYSCALL (utimes, 2, cp, tvp);
# ifndef __ASSUME_UTIMES
if (result != -1 || errno != ENOSYS)
# endif
return result;
#endif
/* The utimes() syscall does not exist or is not available in the
used kernel. Use utime(). For this we have to convert to the
data format utime() expects. */
#ifndef __ASSUME_UTIMES
struct utimbuf ut =
{
.actime = tvp[0].tv_sec + tvp[0].tv_usec >= 500000,
.modtime = tvp[1].tv_sec + tvp[1].tv_usec >= 500000
};
return INLINE_SYSCALL (utime, 2, cp, &ut);
#endif
}
weak_alias (__futimes, futimes)
|
