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
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
|
/* Convert between the kernel's `struct stat' format, and libc's.
Copyright (C) 1991-2015 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
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <sys/stat.h>
#include <kernel_stat.h>
#include <kernel-features.h>
#ifdef STAT_IS_KERNEL_STAT
/* Dummy. */
struct kernel_stat;
#else
#include <string.h>
#ifdef XSTAT_IS_XSTAT64
int
__xstat_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
{
switch (vers)
{
case _STAT_VER_KERNEL:
/* Nothing to do. The struct is in the form the kernel expects.
We should have short-circuted before we got here, but for
completeness... */
*(struct kernel_stat *) ubuf = *kbuf;
break;
case _STAT_VER_LINUX:
{
struct stat *buf = ubuf;
/* Convert to current kernel version of `struct stat'. */
buf->st_dev = kbuf->st_dev;
#ifdef _HAVE_STAT___PAD1
buf->__pad1 = 0;
#endif
buf->st_ino = kbuf->st_ino;
buf->st_mode = kbuf->st_mode;
buf->st_nlink = kbuf->st_nlink;
buf->st_uid = kbuf->st_uid;
buf->st_gid = kbuf->st_gid;
buf->st_rdev = kbuf->st_rdev;
#ifdef _HAVE_STAT___PAD2
buf->__pad2 = 0;
#endif
buf->st_size = kbuf->st_size;
buf->st_blksize = kbuf->st_blksize;
buf->st_blocks = kbuf->st_blocks;
#ifdef _HAVE_STAT_NSEC
buf->st_atim.tv_sec = kbuf->st_atim.tv_sec;
buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec;
buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec;
buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec;
buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec;
buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec;
#else
buf->st_atime = kbuf->st_atime;
buf->st_mtime = kbuf->st_mtime;
buf->st_ctime = kbuf->st_ctime;
#endif
#ifdef _HAVE_STAT___UNUSED1
buf->__glibc_reserved1 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED2
buf->__glibc_reserved2 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED3
buf->__glibc_reserved3 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED4
buf->__glibc_reserved4 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED5
buf->__glibc_reserved5 = 0;
#endif
}
break;
default:
__set_errno (EINVAL);
return -1;
}
return 0;
}
#endif
int
__xstat64_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
{
#ifdef XSTAT_IS_XSTAT64
return __xstat_conv (vers, kbuf, ubuf);
#else
switch (vers)
{
case _STAT_VER_LINUX:
{
struct stat64 *buf = ubuf;
/* Convert to current kernel version of `struct stat64'. */
buf->st_dev = kbuf->st_dev;
#ifdef _HAVE_STAT64___PAD1
buf->__pad1 = 0;
#endif
buf->st_ino = kbuf->st_ino;
#ifdef _HAVE_STAT64___ST_INO
buf->__st_ino = kbuf->st_ino;
#endif
buf->st_mode = kbuf->st_mode;
buf->st_nlink = kbuf->st_nlink;
buf->st_uid = kbuf->st_uid;
buf->st_gid = kbuf->st_gid;
buf->st_rdev = kbuf->st_rdev;
#ifdef _HAVE_STAT64___PAD2
buf->__pad2 = 0;
#endif
buf->st_size = kbuf->st_size;
buf->st_blksize = kbuf->st_blksize;
buf->st_blocks = kbuf->st_blocks;
#ifdef _HAVE_STAT64_NSEC
buf->st_atim.tv_sec = kbuf->st_atim.tv_sec;
buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec;
buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec;
buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec;
buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec;
buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec;
#else
buf->st_atime = kbuf->st_atime;
buf->st_mtime = kbuf->st_mtime;
buf->st_ctime = kbuf->st_ctime;
#endif
#ifdef _HAVE_STAT64___UNUSED1
buf->__glibc_reserved1 = 0;
#endif
#ifdef _HAVE_STAT64___UNUSED2
buf->__glibc_reserved2 = 0;
#endif
#ifdef _HAVE_STAT64___UNUSED3
buf->__glibc_reserved3 = 0;
#endif
#ifdef _HAVE_STAT64___UNUSED4
buf->__glibc_reserved4 = 0;
#endif
#ifdef _HAVE_STAT64___UNUSED5
buf->__glibc_reserved5 = 0;
#endif
}
break;
/* If struct stat64 is different from struct stat then
_STAT_VER_KERNEL does not make sense. */
case _STAT_VER_KERNEL:
default:
__set_errno (EINVAL);
return -1;
}
return 0;
#endif
}
int
__xstat32_conv (int vers, struct stat64 *kbuf, struct stat *buf)
{
switch (vers)
{
case _STAT_VER_LINUX:
{
/* Convert current kernel version of `struct stat64' to
`struct stat'. */
buf->st_dev = kbuf->st_dev;
#ifdef _HAVE_STAT___PAD1
buf->__pad1 = 0;
#endif
#ifdef _HAVE_STAT64___ST_INO
# if __ASSUME_ST_INO_64_BIT == 0
if (kbuf->st_ino == 0)
buf->st_ino = kbuf->__st_ino;
else
# endif
{
buf->st_ino = kbuf->st_ino;
if (sizeof (buf->st_ino) != sizeof (kbuf->st_ino)
&& buf->st_ino != kbuf->st_ino)
{
__set_errno (EOVERFLOW);
return -1;
}
}
#else
buf->st_ino = kbuf->st_ino;
if (sizeof (buf->st_ino) != sizeof (kbuf->st_ino)
&& buf->st_ino != kbuf->st_ino)
{
__set_errno (EOVERFLOW);
return -1;
}
#endif
buf->st_mode = kbuf->st_mode;
buf->st_nlink = kbuf->st_nlink;
buf->st_uid = kbuf->st_uid;
buf->st_gid = kbuf->st_gid;
buf->st_rdev = kbuf->st_rdev;
#ifdef _HAVE_STAT___PAD2
buf->__pad2 = 0;
#endif
buf->st_size = kbuf->st_size;
/* Check for overflow. */
if (sizeof (buf->st_size) != sizeof (kbuf->st_size)
&& buf->st_size != kbuf->st_size)
{
__set_errno (EOVERFLOW);
return -1;
}
buf->st_blksize = kbuf->st_blksize;
buf->st_blocks = kbuf->st_blocks;
/* Check for overflow. */
if (sizeof (buf->st_blocks) != sizeof (kbuf->st_blocks)
&& buf->st_blocks != kbuf->st_blocks)
{
__set_errno (EOVERFLOW);
return -1;
}
#ifdef _HAVE_STAT_NSEC
buf->st_atim.tv_sec = kbuf->st_atim.tv_sec;
buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec;
buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec;
buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec;
buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec;
buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec;
#else
buf->st_atime = kbuf->st_atime;
buf->st_mtime = kbuf->st_mtime;
buf->st_ctime = kbuf->st_ctime;
#endif
#ifdef _HAVE_STAT___UNUSED1
buf->__glibc_reserved1 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED2
buf->__glibc_reserved2 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED3
buf->__glibc_reserved3 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED4
buf->__glibc_reserved4 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED5
buf->__glibc_reserved5 = 0;
#endif
}
break;
/* If struct stat64 is different from struct stat then
_STAT_VER_KERNEL does not make sense. */
case _STAT_VER_KERNEL:
default:
__set_errno (EINVAL);
return -1;
}
return 0;
}
#endif
|
GitWeb