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
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/* Helpers for utimes/utimens conversions.
Copyright (C) 2015-2025 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, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <hurd/hurd_types.h>
#include <stddef.h>
#include <sys/time.h>
static inline bool
check_tval (const struct timeval *tvp)
{
return tvp->tv_usec >= 0 && tvp->tv_usec < USEC_PER_SEC;
}
/* Initializes atime/mtime timespec structures from an array of timeval. */
static inline error_t
utime_ts_from_tval (const struct timeval tvp[2],
struct timespec *atime, struct timespec *mtime)
{
if (tvp == NULL)
{
/* Setting the number of nanoseconds to UTIME_NOW tells the
underlying filesystems to use the current time. */
atime->tv_sec = 0;
atime->tv_nsec = UTIME_NOW;
mtime->tv_sec = 0;
mtime->tv_nsec = UTIME_NOW;
}
else
{
if (!check_tval (&tvp[0]))
return EINVAL;
if (!check_tval (&tvp[1]))
return EINVAL;
TIMEVAL_TO_TIMESPEC (&tvp[0], atime);
TIMEVAL_TO_TIMESPEC (&tvp[1], mtime);
}
return 0;
}
/* Initializes atime/mtime time_value_t structures from an array of timeval. */
static inline error_t
utime_tvalue_from_tval (const struct timeval tvp[2],
time_value_t *atime, time_value_t *mtime)
{
if (tvp == NULL)
/* Setting the number of microseconds to `-1' tells the
underlying filesystems to use the current time. */
atime->microseconds = mtime->microseconds = -1;
else
{
if (!check_tval (&tvp[0]))
return EINVAL;
if (!check_tval (&tvp[1]))
return EINVAL;
atime->seconds = tvp[0].tv_sec;
atime->microseconds = tvp[0].tv_usec;
mtime->seconds = tvp[1].tv_sec;
mtime->microseconds = tvp[1].tv_usec;
}
return 0;
}
/* Changes the access time of the file behind PORT using a timeval array. */
static inline error_t
hurd_futimes (const file_t port, const struct timeval tvp[2])
{
error_t err;
struct timespec atime, mtime;
err = utime_ts_from_tval (tvp, &atime, &mtime);
if (err)
return err;
err = __file_utimens (port, atime, mtime);
if (err == MIG_BAD_ID || err == EOPNOTSUPP)
{
time_value_t atim, mtim;
err = utime_tvalue_from_tval (tvp, &atim, &mtim);
if (err)
return err;
err = __file_utimes (port, atim, mtim);
}
return err;
}
static inline bool
check_tspec (const struct timespec *tsp)
{
return tsp->tv_nsec == UTIME_NOW
|| tsp->tv_nsec == UTIME_OMIT
|| tsp->tv_nsec >= 0 && tsp->tv_nsec < NSEC_PER_SEC;
}
/* Initializes atime/mtime timespec structures from an array of timespec. */
static inline error_t
utime_ts_from_tspec (const struct timespec tsp[2],
struct timespec *atime, struct timespec *mtime)
{
if (tsp == NULL)
{
/* Setting the number of nanoseconds to UTIME_NOW tells the
underlying filesystems to use the current time. */
atime->tv_sec = 0;
atime->tv_nsec = UTIME_NOW;
mtime->tv_sec = 0;
mtime->tv_nsec = UTIME_NOW;
}
else
{
if (!check_tspec (&tsp[0]))
return EINVAL;
if (!check_tspec (&tsp[1]))
return EINVAL;
*atime = tsp[0];
*mtime = tsp[1];
}
return 0;
}
/* Initializes atime/mtime time_value_t structures from an array of timespec. */
static inline error_t
utime_tvalue_from_tspec (const struct timespec tsp[2],
time_value_t *atime, time_value_t *mtime)
{
if (tsp == NULL)
/* Setting the number of microseconds to `-1' tells the
underlying filesystems to use the current time. */
atime->microseconds = mtime->microseconds = -1;
else
{
if (!check_tspec (&tsp[0]))
return EINVAL;
if (!check_tspec (&tsp[1]))
return EINVAL;
if (tsp[0].tv_nsec == UTIME_NOW)
atime->microseconds = -1;
else if (tsp[0].tv_nsec == UTIME_OMIT)
atime->microseconds = -2;
else
TIMESPEC_TO_TIME_VALUE (atime, &(tsp[0]));
if (tsp[1].tv_nsec == UTIME_NOW)
mtime->microseconds = -1;
else if (tsp[1].tv_nsec == UTIME_OMIT)
mtime->microseconds = -2;
else
TIMESPEC_TO_TIME_VALUE (mtime, &(tsp[1]));
}
return 0;
}
/* Changes the access time of the file behind PORT using a timespec array. */
static inline error_t
hurd_futimens (const file_t port, const struct timespec tsp[2])
{
error_t err;
struct timespec atime, mtime;
err = utime_ts_from_tspec (tsp, &atime, &mtime);
if (err)
return err;
err = __file_utimens (port, atime, mtime);
if (err == MIG_BAD_ID || err == EOPNOTSUPP)
{
time_value_t atim, mtim;
err = utime_tvalue_from_tspec (tsp, &atim, &mtim);
if (err)
return err;
err = __file_utimes (port, atim, mtim);
}
return err;
}
|
