stat.h source code [include/x86_64-linux-gnu/bits/stat.h]

1	/* Copyright (C) 1999-2016 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	#ifndef __x86_64__
27	# define _STAT_VER_LINUX_OLD 1
28	# define _STAT_VER_KERNEL 1
29	# define _STAT_VER_SVR4 2
30	# define _STAT_VER_LINUX 3
31
32	/* i386 versions of the `xmknod' interface. */
33	# define _MKNOD_VER_LINUX 1
34	# define _MKNOD_VER_SVR4 2
35	# define _MKNOD_VER _MKNOD_VER_LINUX /* The bits defined below. */
36	#else
37	# define _STAT_VER_KERNEL 0
38	# define _STAT_VER_LINUX 1
39
40	/* x86-64 versions of the `xmknod' interface. */
41	# define _MKNOD_VER_LINUX 0
42	#endif
43
44	#define _STAT_VER _STAT_VER_LINUX
45
46	struct stat
47	{
48	__dev_t st_dev; /* Device. */
49	#ifndef __x86_64__
50	unsigned short int __pad1;
51	#endif
52	#if defined __x86_64__ \|\| !defined __USE_FILE_OFFSET64
53	__ino_t st_ino; /* File serial number. */
54	#else
55	__ino_t __st_ino; /* 32bit file serial number. */
56	#endif
57	#ifndef __x86_64__
58	__mode_t st_mode; /* File mode. */
59	__nlink_t st_nlink; /* Link count. */
60	#else
61	__nlink_t st_nlink; /* Link count. */
62	__mode_t st_mode; /* File mode. */
63	#endif
64	__uid_t st_uid; /* User ID of the file's owner. */
65	__gid_t st_gid; /* Group ID of the file's group.*/
66	#ifdef __x86_64__
67	int __pad0;
68	#endif
69	__dev_t st_rdev; /* Device number, if device. */
70	#ifndef __x86_64__
71	unsigned short int __pad2;
72	#endif
73	#if defined __x86_64__ \|\| !defined __USE_FILE_OFFSET64
74	__off_t st_size; /* Size of file, in bytes. */
75	#else
76	__off64_t st_size; /* Size of file, in bytes. */
77	#endif
78	__blksize_t st_blksize; /* Optimal block size for I/O. */
79	#if defined __x86_64__ \|\| !defined __USE_FILE_OFFSET64
80	__blkcnt_t st_blocks; /* Number 512-byte blocks allocated. */
81	#else
82	__blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */
83	#endif
84	#ifdef __USE_XOPEN2K8
85	/* Nanosecond resolution timestamps are stored in a format
86	equivalent to 'struct timespec'. This is the type used
87	whenever possible but the Unix namespace rules do not allow the
88	identifier 'timespec' to appear in the <sys/stat.h> header.
89	Therefore we have to handle the use of this header in strictly
90	standard-compliant sources special. */
91	struct timespec st_atim; /* Time of last access. */
92	struct timespec st_mtim; /* Time of last modification. */
93	struct timespec st_ctim; /* Time of last status change. */
94	# define st_atime st_atim.tv_sec /* Backward compatibility. */
95	# define st_mtime st_mtim.tv_sec
96	# define st_ctime st_ctim.tv_sec
97	#else
98	__time_t st_atime; /* Time of last access. */
99	__syscall_ulong_t st_atimensec; /* Nscecs of last access. */
100	__time_t st_mtime; /* Time of last modification. */
101	__syscall_ulong_t st_mtimensec; /* Nsecs of last modification. */
102	__time_t st_ctime; /* Time of last status change. */
103	__syscall_ulong_t st_ctimensec; /* Nsecs of last status change. */
104	#endif
105	#ifdef __x86_64__
106	__syscall_slong_t __glibc_reserved[3];
107	#else
108	# ifndef __USE_FILE_OFFSET64
109	unsigned long int __glibc_reserved4;
110	unsigned long int __glibc_reserved5;
111	# else
112	__ino64_t st_ino; /* File serial number. */
113	# endif
114	#endif
115	};
116
117	#ifdef __USE_LARGEFILE64
118	/* Note stat64 has the same shape as stat for x86-64. */
119	struct stat64
120	{
121	__dev_t st_dev; /* Device. */
122	# ifdef __x86_64__
123	__ino64_t st_ino; /* File serial number. */
124	__nlink_t st_nlink; /* Link count. */
125	__mode_t st_mode; /* File mode. */
126	# else
127	unsigned int __pad1;
128	__ino_t __st_ino; /* 32bit file serial number. */
129	__mode_t st_mode; /* File mode. */
130	__nlink_t st_nlink; /* Link count. */
131	# endif
132	__uid_t st_uid; /* User ID of the file's owner. */
133	__gid_t st_gid; /* Group ID of the file's group.*/
134	# ifdef __x86_64__
135	int __pad0;
136	__dev_t st_rdev; /* Device number, if device. */
137	__off_t st_size; /* Size of file, in bytes. */
138	# else
139	__dev_t st_rdev; /* Device number, if device. */
140	unsigned int __pad2;
141	__off64_t st_size; /* Size of file, in bytes. */
142	# endif
143	__blksize_t st_blksize; /* Optimal block size for I/O. */
144	__blkcnt64_t st_blocks; /* Nr. 512-byte blocks allocated. */
145	# ifdef __USE_XOPEN2K8
146	/* Nanosecond resolution timestamps are stored in a format
147	equivalent to 'struct timespec'. This is the type used
148	whenever possible but the Unix namespace rules do not allow the
149	identifier 'timespec' to appear in the <sys/stat.h> header.
150	Therefore we have to handle the use of this header in strictly
151	standard-compliant sources special. */
152	struct timespec st_atim; /* Time of last access. */
153	struct timespec st_mtim; /* Time of last modification. */
154	struct timespec st_ctim; /* Time of last status change. */
155	# else
156	__time_t st_atime; /* Time of last access. */
157	__syscall_ulong_t st_atimensec; /* Nscecs of last access. */
158	__time_t st_mtime; /* Time of last modification. */
159	__syscall_ulong_t st_mtimensec; /* Nsecs of last modification. */
160	__time_t st_ctime; /* Time of last status change. */
161	__syscall_ulong_t st_ctimensec; /* Nsecs of last status change. */
162	# endif
163	# ifdef __x86_64__
164	__syscall_slong_t __glibc_reserved[3];
165	# else
166	__ino64_t st_ino; /* File serial number. */
167	# endif
168	};
169	#endif
170
171	/* Tell code we have these members. */
172	#define _STATBUF_ST_BLKSIZE
173	#define _STATBUF_ST_RDEV
174	/* Nanosecond resolution time values are supported. */
175	#define _STATBUF_ST_NSEC
176
177	/* Encoding of the file mode. */
178
179	#define __S_IFMT 0170000 /* These bits determine file type. */
180
181	/* File types. */
182	#define __S_IFDIR 0040000 /* Directory. */
183	#define __S_IFCHR 0020000 /* Character device. */
184	#define __S_IFBLK 0060000 /* Block device. */
185	#define __S_IFREG 0100000 /* Regular file. */
186	#define __S_IFIFO 0010000 /* FIFO. */
187	#define __S_IFLNK 0120000 /* Symbolic link. */
188	#define __S_IFSOCK 0140000 /* Socket. */
189
190	/* POSIX.1b objects. Note that these macros always evaluate to zero. But
191	they do it by enforcing the correct use of the macros. */
192	#define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode)
193	#define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode)
194	#define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode)
195
196	/* Protection bits. */
197
198	#define __S_ISUID 04000 /* Set user ID on execution. */
199	#define __S_ISGID 02000 /* Set group ID on execution. */
200	#define __S_ISVTX 01000 /* Save swapped text after use (sticky). */
201	#define __S_IREAD 0400 /* Read by owner. */
202	#define __S_IWRITE 0200 /* Write by owner. */
203	#define __S_IEXEC 0100 /* Execute by owner. */
204
205	#ifdef __USE_ATFILE
206	# define UTIME_NOW ((1l << 30) - 1l)
207	# define UTIME_OMIT ((1l << 30) - 2l)
208	#endif
209
210	#endif /* bits/stat.h */
211

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