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1 | /* Copyright (C) 1996-2015 Free Software Foundation, Inc. | |
2 | This file is part of the GNU C Library. | |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
15 | License along with the GNU C Library. If not, see | |
16 | <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | #if !defined _SYS_STAT_H && !defined _FCNTL_H | |
19 | # error "Never include <bits/stat.h> directly; use <sys/stat.h> instead." | |
20 | #endif | |
21 | ||
22 | #ifndef _BITS_STAT_H | |
23 | #define _BITS_STAT_H 1 | |
24 | ||
25 | /* Versions of the `struct stat' data structure. */ | |
26 | #define _STAT_VER_KERNEL 0 | |
27 | #define _STAT_VER_GLIBC2 1 | |
28 | #define _STAT_VER_GLIBC2_1 2 | |
29 | #define _STAT_VER_KERNEL64 3 | |
30 | #define _STAT_VER_GLIBC2_3_4 3 | |
31 | #define _STAT_VER_LINUX 3 | |
32 | #define _STAT_VER _STAT_VER_LINUX | |
33 | ||
34 | /* Versions of the `xmknod' interface. */ | |
35 | #define _MKNOD_VER_LINUX 0 | |
36 | ||
37 | ||
38 | /* Nanosecond resolution timestamps are stored in a format equivalent to | |
39 | 'struct timespec'. This is the type used whenever possible but the | |
40 | Unix namespace rules do not allow the identifier 'timespec' to appear | |
41 | in the <sys/stat.h> header. Therefore we have to handle the use of | |
42 | this header in strictly standard-compliant sources special. | |
43 | ||
44 | Use neat tidy anonymous unions and structures when possible. */ | |
45 | ||
46 | #ifdef __USE_XOPEN2K8 | |
47 | # if __GNUC_PREREQ(3,3) | |
48 | # define __ST_TIME(X) \ | |
49 | __extension__ union { \ | |
50 | struct timespec st_##X##tim; \ | |
51 | struct { \ | |
52 | __time_t st_##X##time; \ | |
53 | unsigned long st_##X##timensec; \ | |
54 | }; \ | |
55 | } | |
56 | # else | |
57 | # define __ST_TIME(X) struct timespec st_##X##tim | |
58 | # define st_atime st_atim.tv_sec | |
59 | # define st_mtime st_mtim.tv_sec | |
60 | # define st_ctime st_ctim.tv_sec | |
61 | # endif | |
62 | #else | |
63 | # define __ST_TIME(X) \ | |
64 | __time_t st_##X##time; \ | |
65 | unsigned long st_##X##timensec | |
66 | #endif | |
67 | ||
68 | ||
69 | struct stat | |
70 | { | |
71 | __dev_t st_dev; /* Device. */ | |
72 | #ifdef __USE_FILE_OFFSET64 | |
73 | __ino64_t st_ino; /* File serial number. */ | |
74 | #else | |
75 | __ino_t st_ino; /* File serial number. */ | |
76 | int __pad0; /* 64-bit st_ino. */ | |
77 | #endif | |
78 | __dev_t st_rdev; /* Device number, if device. */ | |
79 | __off_t st_size; /* Size of file, in bytes. */ | |
80 | #ifdef __USE_FILE_OFFSET64 | |
81 | __blkcnt64_t st_blocks; /* Nr. 512-byte blocks allocated. */ | |
82 | #else | |
83 | __blkcnt_t st_blocks; /* Nr. 512-byte blocks allocated. */ | |
84 | int __pad1; /* 64-bit st_blocks. */ | |
85 | #endif | |
86 | __mode_t st_mode; /* File mode. */ | |
87 | __uid_t st_uid; /* User ID of the file's owner. */ | |
88 | __gid_t st_gid; /* Group ID of the file's group.*/ | |
89 | __blksize_t st_blksize; /* Optimal block size for I/O. */ | |
90 | __nlink_t st_nlink; /* Link count. */ | |
91 | int __pad2; /* Real padding. */ | |
92 | __ST_TIME(a); /* Time of last access. */ | |
93 | __ST_TIME(m); /* Time of last modification. */ | |
94 | __ST_TIME(c); /* Time of last status change. */ | |
95 | long __glibc_reserved[3]; | |
96 | }; | |
97 | ||
98 | #ifdef __USE_LARGEFILE64 | |
99 | /* Note stat64 is the same shape as stat. */ | |
100 | struct stat64 | |
101 | { | |
102 | __dev_t st_dev; /* Device. */ | |
103 | __ino64_t st_ino; /* File serial number. */ | |
104 | __dev_t st_rdev; /* Device number, if device. */ | |
105 | __off_t st_size; /* Size of file, in bytes. */ | |
106 | __blkcnt64_t st_blocks; /* Nr. 512-byte blocks allocated. */ | |
107 | __mode_t st_mode; /* File mode. */ | |
108 | __uid_t st_uid; /* User ID of the file's owner. */ | |
109 | __gid_t st_gid; /* Group ID of the file's group.*/ | |
110 | __blksize_t st_blksize; /* Optimal block size for I/O. */ | |
111 | __nlink_t st_nlink; /* Link count. */ | |
112 | int __pad0; /* Real padding. */ | |
113 | __ST_TIME(a); /* Time of last access. */ | |
114 | __ST_TIME(m); /* Time of last modification. */ | |
115 | __ST_TIME(c); /* Time of last status change. */ | |
116 | long __glibc_reserved[3]; | |
117 | }; | |
118 | #endif | |
119 | ||
120 | #undef __ST_TIME | |
121 | ||
122 | /* Tell code we have these members. */ | |
123 | #define _STATBUF_ST_BLKSIZE | |
124 | #define _STATBUF_ST_RDEV | |
125 | #define _STATBUF_ST_NSEC | |
126 | ||
127 | /* Encoding of the file mode. */ | |
128 | ||
129 | #define __S_IFMT 0170000 /* These bits determine file type. */ | |
130 | ||
131 | /* File types. */ | |
132 | #define __S_IFDIR 0040000 /* Directory. */ | |
133 | #define __S_IFCHR 0020000 /* Character device. */ | |
134 | #define __S_IFBLK 0060000 /* Block device. */ | |
135 | #define __S_IFREG 0100000 /* Regular file. */ | |
136 | #define __S_IFIFO 0010000 /* FIFO. */ | |
137 | #define __S_IFLNK 0120000 /* Symbolic link. */ | |
138 | #define __S_IFSOCK 0140000 /* Socket. */ | |
139 | ||
140 | /* POSIX.1b objects. Note that these macros always evaluate to zero. But | |
141 | they do it by enforcing the correct use of the macros. */ | |
142 | #define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode) | |
143 | #define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode) | |
144 | #define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode) | |
145 | ||
146 | /* Protection bits. */ | |
147 | ||
148 | #define __S_ISUID 04000 /* Set user ID on execution. */ | |
149 | #define __S_ISGID 02000 /* Set group ID on execution. */ | |
150 | #define __S_ISVTX 01000 /* Save swapped text after use (sticky). */ | |
151 | #define __S_IREAD 0400 /* Read by owner. */ | |
152 | #define __S_IWRITE 0200 /* Write by owner. */ | |
153 | #define __S_IEXEC 0100 /* Execute by owner. */ | |
154 | ||
155 | #ifdef __USE_ATFILE | |
156 | # define UTIME_NOW ((1l << 30) - 1l) | |
157 | # define UTIME_OMIT ((1l << 30) - 2l) | |
158 | #endif | |
159 | ||
160 | #endif /* bits/stat.h */ |