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Diffstat (limited to 'include/dirent.h')
| -rw-r--r-- | include/dirent.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/include/dirent.h b/include/dirent.h new file mode 100644 index 000000000..460ba0c5e --- /dev/null +++ b/include/dirent.h @@ -0,0 +1,155 @@ +/* Copyright (C) 1991, 1992 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +/* + * POSIX Standard: 5.1.2 Directory Operations <dirent.h> + */ + +#ifndef _DIRENT_H + +#define _DIRENT_H 1 +#include <features.h> + +__BEGIN_DECLS + +#include <gnu/types.h> + +#define __need_size_t +#include <stddef.h> + +#include <sys/types.h> +#include <linux/limits.h> +#include <linux/dirent.h> + +#if defined(__USE_GNU) +#define d_fileno d_ino /* glibc compatibility. */ +#if 0 +#define d_namlen d_reclen /* glibc compatibility. */ +#endif +#endif + +#if defined(DIRENT_ILLEGAL_ACCESS) || \ + (defined(__SVR4_I386_ABI_L1__) && !defined(INTERNAL_LINUX_C_LIB)) + +/* Use it at your own risk. */ +typedef struct DIR +{ + /* file descriptor */ + int dd_fd; + + /* offset of the next dir entry in buffer */ + off_t dd_loc; + + /* bytes of valid entries in buffer */ + size_t dd_size; + + /* -> directory buffer */ + struct dirent *dd_buf; +} DIR; + +#else + +/* The internal is hidden from the user. */ +typedef struct DIR DIR; + +#endif + + +/* Open a directory stream on NAME. + Return a DIR stream on the directory, or NULL if it could not be opened. */ +extern DIR *opendir __P ((__const char *__name)); + +/* Close the directory stream DIRP. + Return 0 if successful, -1 if not. */ +extern int closedir __P ((DIR * __dirp)); + +/* Read a directory entry from DIRP. + Return a pointer to a `struct dirent' describing the entry, + or NULL for EOF or error. The storage returned may be overwritten + by a later readdir call on the same DIR stream. */ +extern struct dirent *readdir __P ((DIR * __dirp)); + +/* Rewind DIRP to the beginning of the directory. */ +extern void rewinddir __P ((DIR * __dirp)); + +#if defined(__USE_BSD) || defined(__USE_MISC) + +#ifndef MAXNAMLEN +/* Get the definitions of the POSIX.1 limits. */ +#include <posix1_lim.h> + +/* `MAXNAMLEN' is the BSD name for what POSIX calls `NAME_MAX'. */ +#ifdef NAME_MAX +#define MAXNAMLEN NAME_MAX +#else +#define MAXNAMLEN 255 +#endif +#endif + +#include <gnu/types.h> + +/* Seek to position POS on DIRP. */ +extern void seekdir __P ((DIR * __dirp, __off_t __pos)); + +/* Return the current position of DIRP. */ +extern __off_t telldir __P ((DIR * __dirp)); + +typedef int (*__dir_select_fn_t) __P ((__const struct dirent *)); + +typedef int (*__dir_compar_fn_t) __P (( + __const struct dirent * __const *, + __const struct dirent * __const * + )); + +/* Scan the directory DIR, calling SELECT on each directory entry. + Entries for which SELECT returns nonzero are individually malloc'd, + sorted using qsort with CMP, and collected in a malloc'd array in + *NAMELIST. Returns the number of entries selected, or -1 on error. */ +extern int scandir __P ((__const char *__dir, + struct dirent ***__namelist, + __dir_select_fn_t __dir_select_fn, + __dir_compar_fn_t __dir_compar_fn)); + +/* Function to compare two `struct dirent's alphabetically. */ +extern int alphasort __P (( + __const struct dirent * __const *, + __const struct dirent * __const * + )); + + +/* Read directory entries from FD into BUF, reading at most NBYTES. + Reading starts at offset *BASEP, and *BASEP is updated with the new + position after reading. Returns the number of bytes read; zero when at + end of directory; or -1 for errors. */ +extern __ssize_t __getdirentries __P ((int __fd, char *__buf, + size_t __nbytes, __off_t *__basep)); +extern __ssize_t getdirentries __P ((int __fd, char *__buf, + size_t __nbytes, __off_t *__basep)); + +extern int dirfd __P ((DIR *__dirp)); + +#endif /* Use BSD or misc. */ + +#if defined(_POSIX_THREAD_SAFE_FUNCTIONS) || defined(_REENTRANT) +extern int readdir_r __P((DIR *__dirp, struct dirent *__entry, + struct dirent **__result)); +#endif + +__END_DECLS + +#endif /* dirent.h */ |