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
|
/* Copyright (C) 1992-2017 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/>. */
#if !defined _SYS_STAT_H && !defined _FCNTL_H
# error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
#endif
#ifndef _BITS_STAT_H
#define _BITS_STAT_H 1
#include <bits/types.h>
/* NOTE: The size of this structure (32 ints) is known in
<hurd/hurd_types.defs>, since it is used in the `io_stat' RPC. MiG
does not cope at all well with the passed C structure not being of
the expected size. There are some filler words at the end to allow
for future expansion. To increase the size of the structure used
in the RPC and retain binary compatibility, we would need to assign
a new message number. */
struct stat
{
int st_fstype; /* File system type. */
__fsid_t st_fsid; /* File system ID. */
#define st_dev st_fsid
#ifndef __USE_FILE_OFFSET64
__ino_t st_ino; /* File number. */
#else
__ino64_t st_ino; /* File number. */
#endif
unsigned int st_gen; /* To detect reuse of file numbers. */
__dev_t st_rdev; /* Device if special file. */
__mode_t st_mode; /* File mode. */
__nlink_t st_nlink; /* Number of links. */
__uid_t st_uid; /* Owner. */
__gid_t st_gid; /* Owning group. */
#ifndef __USE_FILE_OFFSET64
__off_t st_size; /* Size in bytes. */
#else
__off64_t st_size; /* Size in bytes. */
#endif
#ifdef __USE_XOPEN2K8
/* Nanosecond resolution timestamps are stored in a format
equivalent to 'struct timespec'. This is the type used
whenever possible but the Unix namespace rules do not allow the
identifier 'timespec' to appear in the <sys/stat.h> header.
Therefore we have to handle the use of this header in strictly
standard-compliant sources special. */
struct timespec st_atim; /* Time of last access. */
struct timespec st_mtim; /* Time of last modification. */
struct timespec st_ctim; /* Time of last status change. */
# define st_atime st_atim.tv_sec /* Backward compatibility. */
# define st_mtime st_mtim.tv_sec
# define st_ctime st_ctim.tv_sec
#else
__time_t st_atime; /* Time of last access. */
unsigned long int st_atimensec; /* Nscecs of last access. */
__time_t st_mtime; /* Time of last modification. */
unsigned long int st_mtimensec; /* Nsecs of last modification. */
__time_t st_ctime; /* Time of last status change. */
unsigned long int st_ctimensec; /* Nsecs of last status change. */
#endif
__blksize_t st_blksize; /* Optimal size for I/O. */
#ifndef __USE_FILE_OFFSET64
__blkcnt_t st_blocks; /* Number of 512-byte blocks allocated.
Not related to `st_blksize'. */
#else
__blkcnt64_t st_blocks; /* Number of 512-byte blocks allocated.
Not related to `st_blksize'. */
#endif
__uid_t st_author; /* File author. */
unsigned int st_flags; /* User-defined flags.
High 16 bits can be set only by root. */
#ifndef __USE_FILE_OFFSET64
# define _SPARE_SIZE ((sizeof (__fsid_t) == sizeof (int)) ? 12 : 11)
#else
# define _SPARE_SIZE ((sizeof (__fsid_t) == sizeof (int)) ? 9 : 8)
#endif
int st_spare[_SPARE_SIZE]; /* Room for future expansion. */
#undef _SPARE_SIZE
};
#ifdef __USE_LARGEFILE64
struct stat64
{
int st_fstype; /* File system type. */
__fsid_t st_fsid; /* File system ID. */
# define st_dev st_fsid
__ino64_t st_ino; /* File number. */
unsigned int st_gen; /* To detect reuse of file numbers. */
__dev_t st_rdev; /* Device if special file. */
__mode_t st_mode; /* File mode. */
__nlink_t st_nlink; /* Number of links. */
__uid_t st_uid; /* Owner. */
__gid_t st_gid; /* Owning group. */
__off64_t st_size; /* Size in bytes. */
#ifdef __USE_XOPEN2K8
/* Nanosecond resolution timestamps are stored in a format
equivalent to 'struct timespec'. This is the type used
whenever possible but the Unix namespace rules do not allow the
identifier 'timespec' to appear in the <sys/stat.h> header.
Therefore we have to handle the use of this header in strictly
standard-compliant sources special. */
struct timespec st_atim; /* Time of last access. */
struct timespec st_mtim; /* Time of last modification. */
struct timespec st_ctim; /* Time of last status change. */
#else
__time_t st_atime; /* Time of last access. */
unsigned long int st_atimensec; /* Nscecs of last access. */
__time_t st_mtime; /* Time of last modification. */
unsigned long int st_mtimensec; /* Nsecs of last modification. */
__time_t st_ctime; /* Time of last status change. */
unsigned long int st_ctimensec; /* Nsecs of last status change. */
#endif
__blksize_t st_blksize; /* Optimal size for I/O. */
__blkcnt64_t st_blocks; /* Number of 512-byte blocks allocated.
Not related to `st_blksize'. */
__uid_t st_author; /* File author. */
unsigned int st_flags; /* User-defined flags.
High 16 bits can be set only by root. */
#define _SPARE_SIZE ((sizeof (__fsid_t) == sizeof (int)) ? 9 : 8)
int st_spare[_SPARE_SIZE]; /* Room for future expansion. */
#undef _SPARE_SIZE
};
#endif
/* Tell code we have these members. */
#define _STATBUF_ST_BLKSIZE
/* Nanosecond resolution time values are supported. */
#define _STATBUF_ST_NSEC
/* Encoding of the file mode. */
#define __S_IFMT 0170000 /* These bits determine file type. */
/* File types. */
#define __S_IFDIR 0040000 /* Directory. */
#define __S_IFCHR 0020000 /* Character device. */
#define __S_IFBLK 0060000 /* Block device. */
#define __S_IFREG 0100000 /* Regular file. */
#define __S_IFLNK 0120000 /* Symbolic link. */
#define __S_IFSOCK 0140000 /* Socket. */
#define __S_IFIFO 0010000 /* FIFO. */
/* POSIX.1b objects. */
#define __S_TYPEISMQ(buf) (0)
#define __S_TYPEISSEM(buf) (0)
#define __S_TYPEISSHM(buf) (0)
/* Protection bits. */
#define __S_ISUID 04000 /* Set user ID on execution. */
#define __S_ISGID 02000 /* Set group ID on execution. */
#define __S_ISVTX 01000 /* Save swapped text after use (sticky). */
#define __S_IREAD 00400 /* Read by owner. */
#define __S_IWRITE 00200 /* Write by owner. */
#define __S_IEXEC 00100 /* Execute by owner. */
#ifdef __USE_GNU
/* If set, there is no benefit in caching the contents of this file. */
#define S_INOCACHE 000000200000
/* If the S_IUSEUNK bit is set, then the S_IUNKNOWN bits (see below)
control access for unknown users. If S_IUSEUNK is clear, then unknown
users are treated as "others" for purposes of access control. */
#define S_IUSEUNK 000000400000
/* Mask of protection bits for unknown users (no effective IDs at all). */
#define S_IUNKNOWN 000007000000
/* Shift S_IREAD, S_IWRITE, S_IEXEC left this many bits to produce the
protection bits for unknown users. */
#define S_IUNKSHIFT 12
/* Read only bits: */
/* There is a passive translator set for this file */
#define S_IPTRANS 000010000000
/* There is an active translator running on this file */
#define S_IATRANS 000020000000
/* This is the root of a filesystem (or single node translator) */
#define S_IROOT 000040000000
/* All the bits relevant to translators */
#define S_ITRANS 000070000000
/* Definitely no mmaps to this. */
#define S_IMMAP0 000100000000
/* ALL the unused bits. */
#define S_ISPARE (~(S_IFMT|S_ITRANS|S_INOCACHE|S_IMMAP0| \
S_IUSEUNK|S_IUNKNOWN|07777))
#endif
#ifdef __USE_MISC
/* Default file creation mask (umask). */
# define CMASK 0022
/* Definitions of flags stored in file flags word. */
/* Super-user and owner changeable flags. */
# define UF_SETTABLE 0x0000ffff /* mask of owner changeable flags */
# define UF_NODUMP 0x00000001 /* do not dump file */
# define UF_IMMUTABLE 0x00000002 /* file may not be changed */
# define UF_APPEND 0x00000004 /* writes to file may only append */
# define UF_OPAQUE 0x00000008 /* directory is opaque wrt. union */
# define UF_NOUNLINK 0x00000010 /* file may not be removed or renamed */
/* Super-user changeable flags. */
# define SF_SETTABLE 0xffff0000 /* mask of superuser changeable flags */
# define SF_ARCHIVED 0x00010000 /* file is archived */
# define SF_IMMUTABLE 0x00020000 /* file may not be changed */
# define SF_APPEND 0x00040000 /* writes to file may only append */
# define SF_NOUNLINK 0x00100000 /* file may not be removed or renamed */
# define SF_SNAPSHOT 0x00200000 /* snapshot inode */
__BEGIN_DECLS
/* Set file flags for FILE to FLAGS. */
extern int chflags (__const char *__file, unsigned long int __flags) __THROW;
/* Set file flags of the file referred to by FD to FLAGS. */
extern int fchflags (int __fd, unsigned long int __flags) __THROW;
__END_DECLS
#endif
#endif /* bits/stat.h */
|
