1 /* Copyright (C) 1991 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If
16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
17 Cambridge, MA 02139, USA. */
20 * POSIX Standard: 5.1.2 Directory Operations <dirent.h>
28 #include <gnu/types.h>
34 /* Directory entry structure. */
37 __ino_t d_fileno; /* File serial number. */
38 size_t d_namlen; /* Length of the file name. */
40 /* Only this member is in the POSIX standard. */
41 char d_name[1]; /* File name (actually longer). */
44 #if defined(__USE_BSD) || defined(__USE_MISC)
45 #define d_ino d_fileno /* Backward compatibility. */
48 /* Directory stream type. */
51 int __fd; /* File descriptor. */
53 char *__data; /* Directory block. */
54 size_t __allocation; /* Space allocated for the block. */
55 size_t __offset; /* Current offset into the block. */
56 size_t __size; /* Total valid data in the block. */
58 struct dirent __entry; /* Returned by `readdir'. */
62 /* Open a directory stream on NAME.
63 Return a DIR stream on the directory, or NULL if it could not be opened. */
64 extern DIR *EXFUN(opendir, (CONST char *__name));
66 /* Close the directory stream DIRP.
67 Return 0 if successful, -1 if not. */
68 extern int EXFUN(closedir, (DIR *__dirp));
70 /* Read a directory entry from DIRP.
71 Return a pointer to a `struct dirent' describing the entry,
72 or NULL for EOF or error. The storage returned may be overwritten
73 by a later readdir call on the same DIR stream. */
74 extern struct dirent *EXFUN(readdir, (DIR *__dirp));
76 /* Rewind DIRP to the beginning of the directory. */
77 extern void EXFUN(rewinddir, (DIR *__dirp));
79 #if defined(__USE_BSD) || defined(__USE_MISC)
82 /* Get the definitions of the POSIX.1 limits. */
83 #include <posix1_limits.h>
85 /* `MAXNAMLEN' is the BSD name for what POSIX calls `NAME_MAX'. */
87 #define MAXNAMLEN NAME_MAX
93 #include <gnu/types.h>
95 /* Seek to position POS on DIRP. */
96 extern void EXFUN(seekdir, (DIR *__dirp, __off_t __pos));
98 /* Return the current position of DIRP. */
99 extern __off_t EXFUN(telldir, (DIR *__dirp));
101 #endif /* Use BSD or misc. */
104 #endif /* dirent.h */