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d347a4ab | 1 | /* futimes -- change access and modification times of open file. Linux version. |
f7a9f785 | 2 | Copyright (C) 2002-2016 Free Software Foundation, Inc. |
82bae9f9 UD |
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 | |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
82bae9f9 UD |
18 | |
19 | #include <errno.h> | |
20 | #include <sysdep.h> | |
a6fe2ab3 | 21 | #include <string.h> |
c27d2078 | 22 | #include <time.h> |
82bae9f9 UD |
23 | #include <utime.h> |
24 | #include <sys/time.h> | |
eb96ffb0 | 25 | #include <_itoa.h> |
3ae4b008 | 26 | #include <fcntl.h> |
82bae9f9 | 27 | |
c27d2078 UD |
28 | |
29 | /* Change the access time of the file associated with FD to TVP[0] and | |
30 | the modification time of FILE to TVP[1]. | |
31 | ||
32 | Starting with 2.6.22 the Linux kernel has the utimensat syscall which | |
cecf2ed4 | 33 | can be used to implement futimes. */ |
82bae9f9 UD |
34 | int |
35 | __futimes (int fd, const struct timeval tvp[2]) | |
36 | { | |
c27d2078 UD |
37 | /* The utimensat system call expects timespec not timeval. */ |
38 | struct timespec ts[2]; | |
39 | if (tvp != NULL) | |
40 | { | |
41 | if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000 | |
42 | || tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000) | |
2caca60d | 43 | return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL); |
c27d2078 UD |
44 | |
45 | TIMEVAL_TO_TIMESPEC (&tvp[0], &ts[0]); | |
46 | TIMEVAL_TO_TIMESPEC (&tvp[1], &ts[1]); | |
47 | } | |
48 | ||
e5dee2c8 | 49 | return INLINE_SYSCALL (utimensat, 4, fd, NULL, tvp ? &ts : NULL, 0); |
82bae9f9 UD |
50 | } |
51 | weak_alias (__futimes, futimes) |