aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/unix/sysv/linux/alpha/bits/stat.h
blob: 40b6853430810adbfcd84f4884d57e883c6ee721 (plain)
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
/* Copyright (C) 1996,1997,1998,1999,2000,2001,2004
   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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#ifndef _SYS_STAT_H
# error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
#endif

/* Versions of the `struct stat' data structure.  */
#define _STAT_VER_KERNEL	0
#define _STAT_VER_GLIBC2	1
#define _STAT_VER_GLIBC2_1	2
#define _STAT_VER_KERNEL64	3
#define _STAT_VER_GLIBC2_3_4	3
#define _STAT_VER		_STAT_VER_GLIBC2_3_4

/* Versions of the `xmknod' interface.  */
#define _MKNOD_VER_LINUX	0


/* 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.

   Use neat tidy anonymous unions and structures when possible.  */

#ifdef __USE_MISC
# if __GNUC_PREREQ(3,3)
#  define __ST_TIME(X)				\
	__extension__ union {			\
	    struct timespec st_##X##tim;	\
	    struct {				\
		__time_t st_##X##time;		\
		unsigned long st_##X##timensec;	\
	    };					\
	}
# else
#  define __ST_TIME(X) struct timespec st_##X##tim
#  define st_atime st_atim.tv_sec
#  define st_mtime st_mtim.tv_sec
#  define st_ctime st_ctim.tv_sec
# endif
#else
# define __ST_TIME(X)				\
	__time_t st_##X##time;			\
	unsigned long st_##X##timensec
#endif


struct stat
  {
    __dev_t st_dev;		/* Device.  */
#ifdef __USE_FILE_OFFSET64
    __ino64_t st_ino;		/* File serial number.  */
#else
    __ino_t st_ino;		/* File serial number.	*/
    int __pad0;			/* 64-bit st_ino.  */
#endif
    __dev_t st_rdev;		/* Device number, if device.  */
    __off_t st_size;		/* Size of file, in bytes.  */
#ifdef __USE_FILE_OFFSET64
    __blkcnt64_t st_blocks;	/* Nr. 512-byte blocks allocated.  */
#else
    __blkcnt_t st_blocks;	/* Nr. 512-byte blocks allocated.  */
    int __pad1;			/* 64-bit st_blocks.  */
#endif
    __mode_t st_mode;		/* File mode.  */
    __uid_t st_uid;		/* User ID of the file's owner.	*/
    __gid_t st_gid;		/* Group ID of the file's group.*/
    __blksize_t st_blksize;	/* Optimal block size for I/O.  */
    __nlink_t st_nlink;		/* Link count.  */
    int __pad2;			/* Real padding.  */
    __ST_TIME(a);		/* Time of last access.  */
    __ST_TIME(m);		/* Time of last modification.  */
    __ST_TIME(c);		/* Time of last status change.  */
    long __unused[3];
  };

#ifdef __USE_LARGEFILE64
/* Note stat64 is the same shape as stat.  */
struct stat64
  {
    __dev_t st_dev;		/* Device.  */
    __ino64_t st_ino;		/* File serial number.  */
    __dev_t st_rdev;		/* Device number, if device.  */
    __off_t st_size;		/* Size of file, in bytes.  */
    __blkcnt64_t st_blocks;	/* Nr. 512-byte blocks allocated.  */
    __mode_t st_mode;		/* File mode.  */
    __uid_t st_uid;		/* User ID of the file's owner.	*/
    __gid_t st_gid;		/* Group ID of the file's group.*/
    __blksize_t st_blksize;	/* Optimal block size for I/O.  */
    __nlink_t st_nlink;		/* Link count.  */
    int __pad0;			/* Real padding.  */
    __ST_TIME(a);		/* Time of last access.  */
    __ST_TIME(m);		/* Time of last modification.  */
    __ST_TIME(c);		/* Time of last status change.  */
    long __unused[3];
  };
#endif

#undef __ST_TIME

/* Tell code we have these members.  */
#define	_STATBUF_ST_BLKSIZE
#define _STATBUF_ST_RDEV
#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_IFIFO	0010000	/* FIFO.  */
#define	__S_IFLNK	0120000	/* Symbolic link.  */
#define	__S_IFSOCK	0140000	/* Socket.  */

/* POSIX.1b objects.  Note that these macros always evaluate to zero.  But
   they do it by enforcing the correct use of the macros.  */
#define __S_TYPEISMQ(buf)  ((buf)->st_mode - (buf)->st_mode)
#define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode)
#define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode)

/* 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	0400	/* Read by owner.  */
#define	__S_IWRITE	0200	/* Write by owner.  */
#define	__S_IEXEC	0100	/* Execute by owner.  */