105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/* Copyright (C) 1991 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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/*
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* POSIX Standard: 5.1.2 Directory Operations <dirent.h>
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*/
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#ifndef _DIRENT_H
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#define _DIRENT_H 1
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#include <features.h>
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#include <gnu/types.h>
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#define __need_size_t
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#include <stddef.h>
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/* Directory entry structure. */
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struct dirent
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{
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__ino_t d_fileno; /* File serial number. */
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size_t d_namlen; /* Length of the file name. */
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/* Only this member is in the POSIX standard. */
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char d_name[1]; /* File name (actually longer). */
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};
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#if defined(__USE_BSD) || defined(__USE_MISC)
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#define d_ino d_fileno /* Backward compatibility. */
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#endif
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/* Directory stream type. */
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typedef struct
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{
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int __fd; /* File descriptor. */
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char *__data; /* Directory block. */
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size_t __allocation; /* Space allocated for the block. */
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size_t __offset; /* Current offset into the block. */
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size_t __size; /* Total valid data in the block. */
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struct dirent __entry; /* Returned by `readdir'. */
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} DIR;
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/* Open a directory stream on NAME.
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Return a DIR stream on the directory, or NULL if it could not be opened. */
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extern DIR *EXFUN(opendir, (CONST char *__name));
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/* Close the directory stream DIRP.
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Return 0 if successful, -1 if not. */
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extern int EXFUN(closedir, (DIR *__dirp));
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/* Read a directory entry from DIRP.
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Return a pointer to a `struct dirent' describing the entry,
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or NULL for EOF or error. The storage returned may be overwritten
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by a later readdir call on the same DIR stream. */
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extern struct dirent *EXFUN(readdir, (DIR *__dirp));
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/* Rewind DIRP to the beginning of the directory. */
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extern void EXFUN(rewinddir, (DIR *__dirp));
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#if defined(__USE_BSD) || defined(__USE_MISC)
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#ifndef MAXNAMLEN
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/* Get the definitions of the POSIX.1 limits. */
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#include <posix1_lim.h>
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/* `MAXNAMLEN' is the BSD name for what POSIX calls `NAME_MAX'. */
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#ifdef NAME_MAX
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#define MAXNAMLEN NAME_MAX
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#else
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#define MAXNAMLEN 255
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#endif
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#endif
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#include <gnu/types.h>
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/* Seek to position POS on DIRP. */
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extern void EXFUN(seekdir, (DIR *__dirp, __off_t __pos));
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/* Return the current position of DIRP. */
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extern __off_t EXFUN(telldir, (DIR *__dirp));
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#endif /* Use BSD or misc. */
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#endif /* dirent.h */
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