xref: /freebsd/include/dirent.h (revision ddd5b8e9b4d8957fce018c520657cdfa4ecffad3)
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. 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 REGENTS 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 REGENTS 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  *	@(#)dirent.h	8.2 (Berkeley) 7/28/94
30  * $FreeBSD$
31  */
32 
33 #ifndef _DIRENT_H_
34 #define _DIRENT_H_
35 
36 /*
37  * The kernel defines the format of directory entries returned by
38  * the getdirentries(2) system call.
39  */
40 #include <sys/cdefs.h>
41 #include <sys/dirent.h>
42 
43 #if __BSD_VISIBLE || __XSI_VISIBLE
44 /*
45  * XXX this is probably illegal in the __XSI_VISIBLE case, but brings us closer
46  * to the specification.
47  */
48 #define	d_ino		d_fileno	/* backward and XSI compatibility */
49 #endif
50 
51 #if __BSD_VISIBLE
52 
53 #include <sys/_null.h>
54 
55 /* definitions for library routines operating on directories. */
56 #define	DIRBLKSIZ	1024
57 
58 struct _dirdesc;
59 typedef struct _dirdesc DIR;
60 
61 /* flags for opendir2 */
62 #define DTF_HIDEW	0x0001	/* hide whiteout entries */
63 #define DTF_NODUP	0x0002	/* don't return duplicate names */
64 #define DTF_REWIND	0x0004	/* rewind after reading union stack */
65 #define __DTF_READALL	0x0008	/* everything has been read */
66 
67 #else /* !__BSD_VISIBLE */
68 
69 typedef	void *	DIR;
70 
71 #endif /* __BSD_VISIBLE */
72 
73 #ifndef _KERNEL
74 
75 __BEGIN_DECLS
76 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE >= 700
77 int	 alphasort(const struct dirent **, const struct dirent **);
78 int	 dirfd(DIR *);
79 #endif
80 #if __BSD_VISIBLE
81 DIR	*__opendir2(const char *, int);
82 int	 getdents(int, char *, int);
83 int	 getdirentries(int, char *, int, long *);
84 #endif
85 DIR	*opendir(const char *);
86 DIR	*fdopendir(int);
87 struct dirent *
88 	 readdir(DIR *);
89 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 500
90 int	 readdir_r(DIR *, struct dirent *, struct dirent **);
91 #endif
92 void	 rewinddir(DIR *);
93 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE >= 700
94 int	 scandir(const char *, struct dirent ***,
95 	    int (*)(const struct dirent *), int (*)(const struct dirent **,
96 	    const struct dirent **));
97 #endif
98 #if __XSI_VISIBLE
99 void	 seekdir(DIR *, long);
100 long	 telldir(DIR *);
101 #endif
102 int	 closedir(DIR *);
103 __END_DECLS
104 
105 #endif /* !_KERNEL */
106 
107 #endif /* !_DIRENT_H_ */
108