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63174302 | 1 | /*- |
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2 | * Copyright (c) 1989 The Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
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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. | |
2ebafe45 | 20 | * |
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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 5.18 (Berkeley) 2/23/91 | |
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34 | */ |
35 | ||
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36 | #ifndef _DIRENT_H_ |
37 | #define _DIRENT_H_ | |
5eb1d172 | 38 | |
2ebafe45 | 39 | /* |
9bfec22c | 40 | * A directory entry has a struct dirent at the front of it, containing its |
63174302 KB |
41 | * inode number, the length of the entry, and the length of the name |
42 | * contained in the entry. These are followed by the name padded to a 4 | |
43 | * byte boundary with null bytes. All names are guaranteed null terminated. | |
44 | * The maximum length of a name in a directory is MAXNAMLEN. | |
2ebafe45 | 45 | */ |
2ebafe45 | 46 | |
63174302 | 47 | struct dirent { |
5eb1d172 | 48 | u_long d_fileno; /* file number of entry */ |
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49 | u_short d_reclen; /* length of this record */ |
50 | u_short d_namlen; /* length of string in d_name */ | |
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51 | #ifdef _POSIX_SOURCE |
52 | char d_name[255 + 1]; /* name must be no longer than this */ | |
53 | #else | |
54 | #define MAXNAMLEN 255 | |
2ebafe45 | 55 | char d_name[MAXNAMLEN + 1]; /* name must be no longer than this */ |
63174302 | 56 | #endif |
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57 | }; |
58 | ||
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59 | #ifdef _POSIX_SOURCE |
60 | typedef void * DIR; | |
61 | #else | |
62 | ||
63 | #define d_ino d_fileno /* backward compatibility */ | |
64 | ||
65 | /* definitions for library routines operating on directories. */ | |
53a35811 | 66 | #define DIRBLKSIZ 1024 |
2ebafe45 | 67 | |
63174302 | 68 | /* structure describing an open directory. */ |
2ebafe45 | 69 | typedef struct _dirdesc { |
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70 | int dd_fd; /* file descriptor associated with directory */ |
71 | long dd_loc; /* offset in current buffer */ | |
72 | long dd_size; /* amount of data returned by getdirentries */ | |
73 | char *dd_buf; /* data buffer */ | |
74 | int dd_len; /* size of data buffer */ | |
75 | long dd_seek; /* magic cookie returned by getdirentries */ | |
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76 | } DIR; |
77 | ||
63174302 | 78 | #define dirfd(dirp) ((dirp)->dd_fd) |
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79 | |
80 | #ifndef NULL | |
63174302 | 81 | #define NULL 0 |
2ebafe45 | 82 | #endif |
e7ce7d7c | 83 | |
63174302 | 84 | #endif /* _POSIX_SOURCE */ |
e7ce7d7c | 85 | |
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86 | #ifndef KERNEL |
87 | ||
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88 | #include <sys/cdefs.h> |
89 | ||
90 | __BEGIN_DECLS | |
91 | DIR *opendir __P((const char *)); | |
92 | struct dirent *readdir __P((DIR *)); | |
93 | void rewinddir __P((DIR *)); | |
94 | int closedir __P((DIR *)); | |
63174302 | 95 | #ifndef _POSIX_SOURCE |
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96 | long telldir __P((const DIR *)); |
97 | void seekdir __P((DIR *, long)); | |
98 | int scandir __P((const char *, struct dirent ***, | |
41c3f8bb | 99 | int (*)(struct dirent *), int (*)(const void *, const void *))); |
91befe9c | 100 | int alphasort __P((const void *, const void *)); |
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101 | int getdirentries __P((int, char *, int, long *)); |
102 | #endif /* not POSIX */ | |
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103 | __END_DECLS |
104 | ||
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105 | #endif /* !KERNEL */ |
106 | ||
91befe9c | 107 | #endif /* !_DIRENT_H_ */ |