2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
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33 * @(#)dirent.h 8.2 (Berkeley) 7/28/94
41 * The kernel defines the format of directory entries returned by
42 * the getdirentries(2) system call.
44 #include <sys/cdefs.h>
45 #include <sys/dirent.h>
47 #if __BSD_VISIBLE || __XSI_VISIBLE
49 * XXX this is probably illegal in the __XSI_VISIBLE case, but brings us closer
50 * to the specification.
52 #define d_ino d_fileno /* backward and XSI compatibility */
57 #include <sys/_null.h>
59 /* definitions for library routines operating on directories. */
60 #define DIRBLKSIZ 1024
62 struct _telldir; /* see telldir.h */
65 /* structure describing an open directory. */
66 typedef struct _dirdesc {
67 int dd_fd; /* file descriptor associated with directory */
68 long dd_loc; /* offset in current buffer */
69 long dd_size; /* amount of data returned by getdirentries */
70 char *dd_buf; /* data buffer */
71 int dd_len; /* size of data buffer */
72 long dd_seek; /* magic cookie returned by getdirentries */
73 long dd_rewind; /* magic cookie for rewinding */
74 int dd_flags; /* flags for readdir */
75 struct pthread_mutex *dd_lock; /* lock */
76 struct _telldir *dd_td; /* telldir position recording */
79 #define dirfd(dirp) ((dirp)->dd_fd)
81 /* flags for opendir2 */
82 #define DTF_HIDEW 0x0001 /* hide whiteout entries */
83 #define DTF_NODUP 0x0002 /* don't return duplicate names */
84 #define DTF_REWIND 0x0004 /* rewind after reading union stack */
85 #define __DTF_READALL 0x0008 /* everything has been read */
87 #else /* !__BSD_VISIBLE */
91 #endif /* __BSD_VISIBLE */
96 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE >= 700
97 int alphasort(const struct dirent **, const struct dirent **);
100 DIR *__opendir2(const char *, int);
101 int getdents(int, char *, int);
102 int getdirentries(int, char *, int, long *);
104 DIR *opendir(const char *);
108 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 500
109 int readdir_r(DIR *, struct dirent *, struct dirent **);
111 void rewinddir(DIR *);
112 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE >= 700
113 int scandir(const char *, struct dirent ***,
114 int (*)(const struct dirent *), int (*)(const struct dirent **,
115 const struct dirent **));
118 void seekdir(DIR *, long);
124 #endif /* !_KERNEL */
126 #endif /* !_DIRENT_H_ */