1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22#pragma ident	"%Z%%M%	%I%	%E% SMI"
23
24/*
25 * Filesystem-independent directory information.
26 * Directory entry structures are of variable length.
27 * Each directory entry is a struct direct containing its file number, the
28 * offset of the next entry (a cookie interpretable only the filesystem
29 * type that generated it), the length of the entry, and the length of the
30 * name contained in the entry.  These are followed by the name. The
31 * entire entry is padded with null bytes to a 4 byte boundary. All names
32 * are guaranteed null terminated. The maximum length of a name in a
33 * directory is MAXNAMLEN, plus a null byte.
34 * Note: this file is present only for backwards compatibility. It is superseded
35 * by the files /usr/include/dirent.h and /usr/include/sys/dirent.h. It will
36 * disappear in a future major release.
37 */
38
39#ifndef _sys_dir_h
40#define _sys_dir_h
41
42#define	MAXNAMLEN	255
43
44struct	direct {
45	off_t   d_off;			/* offset of next disk directory entry */
46	u_long	d_fileno;		/* file number of entry */
47	u_short	d_reclen;		/* length of this record */
48	u_short	d_namlen;		/* length of string in d_name */
49	char	d_name[MAXNAMLEN + 1];	/* name (up to MAXNAMLEN + 1) */
50};
51
52/*
53 * The macro DIRSIZ(dp) gives the minimum amount of space required to represent
54 * a directory entry.  For any directory entry dp->d_reclen >= DIRSIZ(dp).
55 * Specific filesystem typesm may use this macro to construct the value
56 * for d_reclen.
57 */
58#undef DIRSIZ
59#define DIRSIZ(dp)  \
60	(((sizeof (struct direct) - (MAXNAMLEN+1) + ((dp)->d_namlen+1)) + 3) & ~3)
61
62#ifndef KERNEL
63#define d_ino	d_fileno		/* compatability */
64
65
66/*
67 * Definitions for library routines operating on directories.
68 */
69
70typedef struct _dirdesc {
71	int	dd_fd;			/* file descriptor */
72	long	dd_loc;             /* buf offset of entry from last readddir() */
73	long	dd_size;		/* amount of valid data in buffer */
74	long	dd_bsize;		/* amount of entries read at a time */
75	long	dd_off;             	/* Current offset in dir (for telldir) */
76	char	*dd_buf;		/* directory data buffer */
77} DIR;
78
79#ifndef NULL
80#define NULL 0
81#endif
82extern	DIR *opendir();
83extern	struct direct *readdir();
84extern	long telldir();
85extern	void seekdir();
86#define rewinddir(dirp)	seekdir((dirp), (long)0)
87extern	int closedir();
88#endif
89
90#endif /*!_sys_dir_h*/
91