1 /* Definition for struct stat.
2 Copyright (C) 2020-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library. If not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #if !defined _SYS_STAT_H && !defined _FCNTL_H
20 # error "Never include <bits/struct_stat.h> directly; use <sys/stat.h> instead."
21 #endif
22
23 #ifndef _BITS_STRUCT_STAT_H
24 #define _BITS_STRUCT_STAT_H 1
25
26 #include <bits/endian.h>
27 #include <bits/wordsize.h>
28
29 #if defined __USE_FILE_OFFSET64
30 # define __field64(type, type64, name) type64 name
31 #elif __WORDSIZE == 64 || defined __INO_T_MATCHES_INO64_T
32 # if defined __INO_T_MATCHES_INO64_T && !defined __OFF_T_MATCHES_OFF64_T
33 # error "ino_t and off_t must both be the same type"
34 # endif
35 # define __field64(type, type64, name) type name
36 #elif __BYTE_ORDER == __LITTLE_ENDIAN
37 # define __field64(type, type64, name) \
38 type name __attribute__((__aligned__ (__alignof__ (type64)))); int __##name##_pad
39 #else
40 # define __field64(type, type64, name) \
41 int __##name##_pad __attribute__((__aligned__ (__alignof__ (type64)))); type name
42 #endif
43
44 struct stat
45 {
46 __dev_t st_dev; /* Device. */
47 __field64(__ino_t, __ino64_t, st_ino); /* File serial number. */
48 __mode_t st_mode; /* File mode. */
49 __nlink_t st_nlink; /* Link count. */
50 __uid_t st_uid; /* User ID of the file's owner. */
51 __gid_t st_gid; /* Group ID of the file's group.*/
52 __dev_t st_rdev; /* Device number, if device. */
53 __dev_t __pad1;
54 __field64(__off_t, __off64_t, st_size); /* Size of file, in bytes. */
55 __blksize_t st_blksize; /* Optimal block size for I/O. */
56 int __pad2;
57 __field64(__blkcnt_t, __blkcnt64_t, st_blocks); /* 512-byte blocks */
58 #ifdef __USE_XOPEN2K8
59 /* Nanosecond resolution timestamps are stored in a format
60 equivalent to 'struct timespec'. This is the type used
61 whenever possible but the Unix namespace rules do not allow the
62 identifier 'timespec' to appear in the <sys/stat.h> header.
63 Therefore we have to handle the use of this header in strictly
64 standard-compliant sources special. */
65 struct timespec st_atim; /* Time of last access. */
66 struct timespec st_mtim; /* Time of last modification. */
67 struct timespec st_ctim; /* Time of last status change. */
68 # define st_atime st_atim.tv_sec /* Backward compatibility. */
69 # define st_mtime st_mtim.tv_sec
70 # define st_ctime st_ctim.tv_sec
71 #else
72 __time_t st_atime; /* Time of last access. */
73 unsigned long int st_atimensec; /* Nscecs of last access. */
74 __time_t st_mtime; /* Time of last modification. */
75 unsigned long int st_mtimensec; /* Nsecs of last modification. */
76 __time_t st_ctime; /* Time of last status change. */
77 unsigned long int st_ctimensec; /* Nsecs of last status change. */
78 #endif
79 int __glibc_reserved[2];
80 };
81
82 #undef __field64
83
84 #ifdef __USE_LARGEFILE64
85 struct stat64
86 {
87 __dev_t st_dev; /* Device. */
88 __ino64_t st_ino; /* File serial number. */
89 __mode_t st_mode; /* File mode. */
90 __nlink_t st_nlink; /* Link count. */
91 __uid_t st_uid; /* User ID of the file's owner. */
92 __gid_t st_gid; /* Group ID of the file's group.*/
93 __dev_t st_rdev; /* Device number, if device. */
94 __dev_t __pad1;
95 __off64_t st_size; /* Size of file, in bytes. */
96 __blksize_t st_blksize; /* Optimal block size for I/O. */
97 int __pad2;
98 __blkcnt64_t st_blocks; /* Nr. 512-byte blocks allocated. */
99 #ifdef __USE_XOPEN2K8
100 /* Nanosecond resolution timestamps are stored in a format
101 equivalent to 'struct timespec'. This is the type used
102 whenever possible but the Unix namespace rules do not allow the
103 identifier 'timespec' to appear in the <sys/stat.h> header.
104 Therefore we have to handle the use of this header in strictly
105 standard-compliant sources special. */
106 struct timespec st_atim; /* Time of last access. */
107 struct timespec st_mtim; /* Time of last modification. */
108 struct timespec st_ctim; /* Time of last status change. */
109 #else
110 __time_t st_atime; /* Time of last access. */
111 unsigned long int st_atimensec; /* Nscecs of last access. */
112 __time_t st_mtime; /* Time of last modification. */
113 unsigned long int st_mtimensec; /* Nsecs of last modification. */
114 __time_t st_ctime; /* Time of last status change. */
115 unsigned long int st_ctimensec; /* Nsecs of last status change. */
116 #endif
117 int __glibc_reserved[2];
118 };
119 #endif
120
121 /* Tell code we have these members. */
122 #define _STATBUF_ST_BLKSIZE
123 #define _STATBUF_ST_RDEV
124 /* Nanosecond resolution time values are supported. */
125 #define _STATBUF_ST_NSEC
126
127 #endif /* _BITS_STRUCT_STAT_H */