dirent.h revision 8858 
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	8.1 (Berkeley) 6/8/93
34 */
35
36#ifndef _DIRENT_H_
37#define _DIRENT_H_
38
39/*
40 * The kernel defines the format of directory entries returned by
41 * the getdirentries(2) system call.
42 */
43#include <sys/dirent.h>
44
45#ifdef _POSIX_SOURCE
46typedef void *	DIR;
47#else
48
49#define	d_ino		d_fileno	/* backward compatibility */
50
51/* definitions for library routines operating on directories. */
52#define	DIRBLKSIZ	1024
53
54/* structure describing an open directory. */
55typedef struct _dirdesc {
56	int	dd_fd;		/* file descriptor associated with directory */
57	long	dd_loc;		/* offset in current buffer */
58	long	dd_size;	/* amount of data returned by getdirentries */
59	char	*dd_buf;	/* data buffer */
60	int	dd_len;		/* size of data buffer */
61	long	dd_seek;	/* magic cookie returned by getdirentries */
62	long	dd_rewind;	/* magic cookie for rewinding */
63} DIR;
64
65#define	dirfd(dirp)	((dirp)->dd_fd)
66
67#ifndef NULL
68#define	NULL	0
69#endif
70
71#endif /* _POSIX_SOURCE */
72
73#ifndef KERNEL
74
75#include <sys/cdefs.h>
76
77__BEGIN_DECLS
78DIR *opendir __P((const char *));
79struct dirent *readdir __P((DIR *));
80void rewinddir __P((DIR *));
81int closedir __P((DIR *));
82#ifndef _POSIX_SOURCE
83long telldir __P((const DIR *));
84void seekdir __P((DIR *, long));
85int scandir __P((const char *, struct dirent ***,
86    int (*)(struct dirent *), int (*)(const void *, const void *)));
87int alphasort __P((const void *, const void *));
88int getdirentries __P((int, char *, int, long *));
89#endif /* not POSIX */
90__END_DECLS
91
92#endif /* !KERNEL */
93
94#endif /* !_DIRENT_H_ */
95