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
40int
41futimens(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}
101