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1 /*
2 * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008
3 * The President and Fellows of Harvard College.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #ifndef _KERN_STAT_H_
31 #define _KERN_STAT_H_
32
33 /*
34 * The stat structure, for returning file information via stat(),
35 * fstat(), and lstat().
36 *
37 * Fields corresponding to things you aren't implementing should be
38 * set to zero.
39 *
40 * The file types are in kern/stattypes.h.
41 */
42 struct stat {
43 /* Essential fields */
44 off_t st_size; /* file size in bytes */
45 mode_t st_mode; /* file type and protection mode */
46 nlink_t st_nlink; /* number of hard links */
47 blkcnt_t st_blocks; /* number of blocks file is using */
48
49 /* Identity */
50 dev_t st_dev; /* device object lives on */
51 ino_t st_ino; /* inode number (serial number) of object */
52 dev_t st_rdev; /* device object is (if a device) */
53
54 /* Timestamps */
55 time_t st_atime; /* last access time: seconds */
56 time_t st_ctime; /* inode change time: seconds */
57 time_t st_mtime; /* modification time: seconds */
58 __u32 st_atimensec; /* last access time: nanoseconds */
59 __u32 st_ctimensec; /* inode change time: nanoseconds */
60 __u32 st_mtimensec; /* modification time: nanoseconds */
61
62 /* Permissions (also st_mode) */
63 uid_t st_uid; /* owner */
64 gid_t st_gid; /* group */
65
66 /* Other */
67 __u32 st_gen; /* file generation number (root only) */
68 blksize_t st_blksize; /* recommended I/O block size */
69 };
70
71 #endif /* _KERN_STAT_H_ */