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29 * @(#)dirent.h 8.2 (Berkeley) 7/28/94
37 * The kernel defines the format of directory entries returned by
38 * the getdirentries(2) system call.
40 #include <sys/cdefs.h>
41 #include <sys/dirent.h>
43 #if __BSD_VISIBLE || __XSI_VISIBLE
45 * XXX this is probably illegal in the __XSI_VISIBLE case, but brings us closer
46 * to the specification.
48 #define d_ino d_fileno /* backward and XSI compatibility */
53 #include <sys/_null.h>
55 /* definitions for library routines operating on directories. */
56 #define DIRBLKSIZ 1024
58 struct _telldir; /* see telldir.h */
61 /* structure describing an open directory. */
62 typedef struct _dirdesc {
63 int dd_fd; /* file descriptor associated with directory */
64 long dd_loc; /* offset in current buffer */
65 long dd_size; /* amount of data returned by getdirentries */
66 char *dd_buf; /* data buffer */
67 int dd_len; /* size of data buffer */
68 long dd_seek; /* magic cookie returned by getdirentries */
69 long dd_rewind; /* magic cookie for rewinding */
70 int dd_flags; /* flags for readdir */
71 struct pthread_mutex *dd_lock; /* lock */
72 struct _telldir *dd_td; /* telldir position recording */
75 #define dirfd(dirp) ((dirp)->dd_fd)
77 /* flags for opendir2 */
78 #define DTF_HIDEW 0x0001 /* hide whiteout entries */
79 #define DTF_NODUP 0x0002 /* don't return duplicate names */
80 #define DTF_REWIND 0x0004 /* rewind after reading union stack */
81 #define __DTF_READALL 0x0008 /* everything has been read */
83 #else /* !__BSD_VISIBLE */
87 #endif /* __BSD_VISIBLE */
92 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE >= 700
93 int alphasort(const struct dirent **, const struct dirent **);
96 DIR *__opendir2(const char *, int);
97 int getdents(int, char *, int);
98 int getdirentries(int, char *, int, long *);
100 DIR *opendir(const char *);
104 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 500
105 int readdir_r(DIR *, struct dirent *, struct dirent **);
107 void rewinddir(DIR *);
108 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE >= 700
109 int scandir(const char *, struct dirent ***,
110 int (*)(const struct dirent *), int (*)(const struct dirent **,
111 const struct dirent **));
114 void seekdir(DIR *, long);
120 #endif /* !_KERNEL */
122 #endif /* !_DIRENT_H_ */