FreeBSD/Linux Kernel Cross Reference
sys/sys/dirent.h
1 /*-
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)dirent.h 8.3 (Berkeley) 8/10/94
34 * $FreeBSD: src/sys/sys/dirent.h,v 1.5.4.1 1999/09/05 08:22:08 peter Exp $
35 */
36
37 #ifndef _SYS_DIRENT_H_
38 #define _SYS_DIRENT_H_
39
40 /*
41 * The dirent structure defines the format of directory entries returned by
42 * the getdirentries(2) system call.
43 *
44 * A directory entry has a struct dirent at the front of it, containing its
45 * inode number, the length of the entry, and the length of the name
46 * contained in the entry. These are followed by the name padded to a 4
47 * byte boundary with null bytes. All names are guaranteed null terminated.
48 * The maximum length of a name in a directory is MAXNAMLEN.
49 */
50
51 struct dirent {
52 u_int32_t d_fileno; /* file number of entry */
53 u_int16_t d_reclen; /* length of this record */
54 u_int8_t d_type; /* file type, see below */
55 u_int8_t d_namlen; /* length of string in d_name */
56 #ifdef _POSIX_SOURCE
57 char d_name[255 + 1]; /* name must be no longer than this */
58 #else
59 #define MAXNAMLEN 255
60 char d_name[MAXNAMLEN + 1]; /* name must be no longer than this */
61 #endif
62 };
63
64 /*
65 * File types
66 */
67 #define DT_UNKNOWN 0
68 #define DT_FIFO 1
69 #define DT_CHR 2
70 #define DT_DIR 4
71 #define DT_BLK 6
72 #define DT_REG 8
73 #define DT_LNK 10
74 #define DT_SOCK 12
75 #define DT_WHT 14
76
77 /*
78 * Convert between stat structure types and directory types.
79 */
80 #define IFTODT(mode) (((mode) & 0170000) >> 12)
81 #define DTTOIF(dirtype) ((dirtype) << 12)
82
83 #endif
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