]> CyberLeo.Net >> Repos - FreeBSD/releng/10.3.git/blob - lib/libc/sys/futimens.c
- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
[FreeBSD/releng/10.3.git] / lib / libc / sys / futimens.c
1 /*-
2  * Copyright (c) 2015 Jilles Tjoelker
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 #include "namespace.h"
31 #include <sys/stat.h>
32
33 #include <errno.h>
34 #include <fcntl.h>
35 #include <time.h>
36 #include "un-namespace.h"
37
38 #include "libc_private.h"
39
40 int
41 futimens(int fd, const struct timespec times[2])
42 {
43         struct timeval now, tv[2], *tvp;
44         struct stat sb;
45         int osreldate;
46
47         osreldate = __getosreldate();
48         if (osreldate >= 1100056 ||
49             (osreldate >= 1002506 && osreldate < 1100000))
50                 return (__sys_futimens(fd, times));
51
52         if (times == NULL || (times[0].tv_nsec == UTIME_NOW &&
53             times[1].tv_nsec == UTIME_NOW))
54                 tvp = NULL;
55         else if (times[0].tv_nsec == UTIME_OMIT &&
56             times[1].tv_nsec == UTIME_OMIT)
57                 return (0);
58         else {
59                 if ((times[0].tv_nsec < 0 || times[0].tv_nsec > 999999999) &&
60                     times[0].tv_nsec != UTIME_NOW &&
61                     times[0].tv_nsec != UTIME_OMIT) {
62                         errno = EINVAL;
63                         return (-1);
64                 }
65                 if ((times[1].tv_nsec < 0 || times[1].tv_nsec > 999999999) &&
66                     times[1].tv_nsec != UTIME_NOW &&
67                     times[1].tv_nsec != UTIME_OMIT) {
68                         errno = EINVAL;
69                         return (-1);
70                 }
71                 tv[0].tv_sec = times[0].tv_sec;
72                 tv[0].tv_usec = times[0].tv_nsec / 1000;
73                 tv[1].tv_sec = times[1].tv_sec;
74                 tv[1].tv_usec = times[1].tv_nsec / 1000;
75                 tvp = tv;
76                 if (times[0].tv_nsec == UTIME_OMIT ||
77                     times[1].tv_nsec == UTIME_OMIT) {
78                         if (_fstat(fd, &sb) == -1)
79                                 return (-1);
80                         if (times[0].tv_nsec == UTIME_OMIT) {
81                                 tv[0].tv_sec = sb.st_atim.tv_sec;
82                                 tv[0].tv_usec = sb.st_atim.tv_nsec / 1000;
83                         }
84                         if (times[1].tv_nsec == UTIME_OMIT) {
85                                 tv[1].tv_sec = sb.st_mtim.tv_sec;
86                                 tv[1].tv_usec = sb.st_mtim.tv_nsec / 1000;
87                         }
88                 }
89                 if (times[0].tv_nsec == UTIME_NOW ||
90                     times[1].tv_nsec == UTIME_NOW) {
91                         if (gettimeofday(&now, NULL) == -1)
92                                 return (-1);
93                         if (times[0].tv_nsec == UTIME_NOW)
94                                 tv[0] = now;
95                         if (times[1].tv_nsec == UTIME_NOW)
96                                 tv[1] = now;
97                 }
98         }
99         return (futimes(fd, tvp));
100 }