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Edit File : dirent.h \| Size : 12.19 KB
/* Copyright (C) 1991-2018 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 Lesser General Public License as published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. / / * POSIX Standard: 5.1.2 Directory Operations <dirent.h> / #ifndef _DIRENT_H #define _DIRENT_H 1 #include <features.h> __BEGIN_DECLS #include <bits/types.h> #ifdef __USE_XOPEN # ifndef __ino_t_defined # ifndef __USE_FILE_OFFSET64 typedef __ino_t ino_t; # else typedef __ino64_t ino_t; # endif # define __ino_t_defined # endif # if defined __USE_LARGEFILE64 && !defined __ino64_t_defined typedef __ino64_t ino64_t; # define __ino64_t_defined # endif #endif / This file defines `struct dirent'. It defines the macro `_DIRENT_HAVE_D_NAMLEN' iff there is a `d_namlen' member that gives the length of `d_name'. It defines the macro `_DIRENT_HAVE_D_RECLEN' iff there is a `d_reclen' member that gives the size of the entire directory entry. It defines the macro `_DIRENT_HAVE_D_OFF' iff there is a `d_off' member that gives the file offset of the next directory entry. It defines the macro `_DIRENT_HAVE_D_TYPE' iff there is a `d_type' member that gives the type of the file. / #include <bits/dirent.h> #if defined __USE_MISC && !defined d_fileno # define d_ino d_fileno / Backward compatibility. / #endif / These macros extract size information from a `struct dirent '. They may evaluate their argument multiple times, so it must not have side effects. Each of these may involve a relatively costly call to `strlen' on some systems, so these values should be cached. _D_EXACT_NAMLEN (DP) returns the length of DP->d_name, not including its terminating null character. _D_ALLOC_NAMLEN (DP) returns a size at least (_D_EXACT_NAMLEN (DP) + 1); that is, the allocation size needed to hold the DP->d_name string. Use this macro when you don't need the exact length, just an upper bound. This macro is less likely to require calling `strlen' than _D_EXACT_NAMLEN. / #ifdef _DIRENT_HAVE_D_NAMLEN # define _D_EXACT_NAMLEN(d) ((d)->d_namlen) # define _D_ALLOC_NAMLEN(d) (_D_EXACT_NAMLEN (d) + 1) #else # define _D_EXACT_NAMLEN(d) (strlen ((d)->d_name)) # ifdef _DIRENT_HAVE_D_RECLEN # define _D_ALLOC_NAMLEN(d) (((char ) (d) + (d)->d_reclen) - &(d)->d_name[0]) # else # define _D_ALLOC_NAMLEN(d) (sizeof (d)->d_name > 1 ? sizeof (d)->d_name : \ _D_EXACT_NAMLEN (d) + 1) # endif #endif #ifdef __USE_MISC / File types for `d_type'. / enum { DT_UNKNOWN = 0, # define DT_UNKNOWN DT_UNKNOWN DT_FIFO = 1, # define DT_FIFO DT_FIFO DT_CHR = 2, # define DT_CHR DT_CHR DT_DIR = 4, # define DT_DIR DT_DIR DT_BLK = 6, # define DT_BLK DT_BLK DT_REG = 8, # define DT_REG DT_REG DT_LNK = 10, # define DT_LNK DT_LNK DT_SOCK = 12, # define DT_SOCK DT_SOCK DT_WHT = 14 # define DT_WHT DT_WHT }; / Convert between stat structure types and directory types. / # define IFTODT(mode) (((mode) & 0170000) >> 12) # define DTTOIF(dirtype) ((dirtype) << 12) #endif / This is the data type of directory stream objects. The actual structure is opaque to users. / typedef struct __dirstream DIR; / Open a directory stream on NAME. Return a DIR stream on the directory, or NULL if it could not be opened. This function is a possible cancellation point and therefore not marked with __THROW. / extern DIR opendir (const char __name) __nonnull ((1)); #ifdef __USE_XOPEN2K8 / Same as opendir, but open the stream on the file descriptor FD. This function is a possible cancellation point and therefore not marked with __THROW. / extern DIR fdopendir (int __fd); #endif /* Close the directory stream DIRP. Return 0 if successful, -1 if not. This function is a possible cancellation point and therefore not marked with __THROW. / extern int closedir (DIR __dirp) __nonnull ((1)); /* 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. If the Large File Support API is selected we have to use the appropriate interface. This function is a possible cancellation point and therefore not marked with __THROW. / #ifndef __USE_FILE_OFFSET64 extern struct dirent readdir (DIR __dirp) __nonnull ((1)); #else # ifdef __REDIRECT extern struct dirent __REDIRECT (readdir, (DIR __dirp), readdir64) __nonnull ((1)); # else # define readdir readdir64 # endif #endif #ifdef __USE_LARGEFILE64 extern struct dirent64 readdir64 (DIR __dirp) __nonnull ((1)); #endif #ifdef __USE_POSIX / Reentrant version of `readdir'. Return in RESULT a pointer to the next entry. This function is a possible cancellation point and therefore not marked with __THROW. / # ifndef __USE_FILE_OFFSET64 extern int readdir_r (DIR __restrict __dirp, struct dirent __restrict __entry, struct dirent __restrict __result) __nonnull ((1, 2, 3)) __attribute_deprecated__; # else # ifdef __REDIRECT extern int __REDIRECT (readdir_r, (DIR __restrict __dirp, struct dirent __restrict __entry, struct dirent __restrict __result), readdir64_r) __nonnull ((1, 2, 3)) __attribute_deprecated__; # else # define readdir_r readdir64_r # endif # endif # ifdef __USE_LARGEFILE64 extern int readdir64_r (DIR __restrict __dirp, struct dirent64 __restrict __entry, struct dirent64 __restrict __result) __nonnull ((1, 2, 3)) __attribute_deprecated__; # endif #endif / POSIX or misc / / Rewind DIRP to the beginning of the directory. / extern void rewinddir (DIR __dirp) __THROW __nonnull ((1)); #if defined __USE_MISC \|\| defined __USE_XOPEN # include <bits/types.h> /* Seek to position POS on DIRP. / extern void seekdir (DIR __dirp, long int __pos) __THROW __nonnull ((1)); /* Return the current position of DIRP. / extern long int telldir (DIR __dirp) __THROW __nonnull ((1)); #endif #ifdef __USE_XOPEN2K8 /* Return the file descriptor used by DIRP. / extern int dirfd (DIR __dirp) __THROW __nonnull ((1)); # if defined __OPTIMIZE__ && defined _DIR_dirfd # define dirfd(dirp) _DIR_dirfd (dirp) # endif # ifdef __USE_MISC # ifndef MAXNAMLEN /* Get the definitions of the POSIX.1 limits. / # include <bits/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 # endif # define __need_size_t # include <stddef.h> / Scan the directory DIR, calling SELECTOR 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. This function is a cancellation point and therefore not marked with __THROW. / # ifndef __USE_FILE_OFFSET64 extern int scandir (const char __restrict __dir, struct dirent *__restrict __namelist, int (__selector) (const struct dirent ), int (__cmp) (const struct dirent , const struct dirent )) __nonnull ((1, 2)); # else # ifdef __REDIRECT extern int __REDIRECT (scandir, (const char __restrict __dir, struct dirent *__restrict __namelist, int (__selector) (const struct dirent ), int (__cmp) (const struct dirent , const struct dirent )), scandir64) __nonnull ((1, 2)); # else # define scandir scandir64 # endif # endif # if defined __USE_GNU && defined __USE_LARGEFILE64 /* This function is like `scandir' but it uses the 64bit dirent structure. Please note that the CMP function must now work with struct dirent64 *. / extern int scandir64 (const char __restrict __dir, struct dirent64 *__restrict __namelist, int (__selector) (const struct dirent64 ), int (__cmp) (const struct dirent64 , const struct dirent64 )) __nonnull ((1, 2)); # endif # ifdef __USE_GNU /* Similar to `scandir' but a relative DIR name is interpreted relative to the directory for which DFD is a descriptor. This function is a cancellation point and therefore not marked with __THROW. / # ifndef __USE_FILE_OFFSET64 extern int scandirat (int __dfd, const char __restrict __dir, struct dirent **__restrict __namelist, int (__selector) (const struct dirent ), int (__cmp) (const struct dirent , const struct dirent )) __nonnull ((2, 3)); # else # ifdef __REDIRECT extern int __REDIRECT (scandirat, (int __dfd, const char __restrict __dir, struct dirent *__restrict __namelist, int (__selector) (const struct dirent ), int (__cmp) (const struct dirent , const struct dirent )), scandirat64) __nonnull ((2, 3)); # else # define scandirat scandirat64 # endif # endif /* This function is like `scandir' but it uses the 64bit dirent structure. Please note that the CMP function must now work with struct dirent64 *. / extern int scandirat64 (int __dfd, const char __restrict __dir, struct dirent64 *__restrict __namelist, int (__selector) (const struct dirent64 ), int (__cmp) (const struct dirent64 , const struct dirent64 )) __nonnull ((2, 3)); # endif /* Function to compare two `struct dirent's alphabetically. / # ifndef __USE_FILE_OFFSET64 extern int alphasort (const struct dirent __e1, const struct dirent __e2) __THROW __attribute_pure__ __nonnull ((1, 2)); # else # ifdef __REDIRECT extern int __REDIRECT_NTH (alphasort, (const struct dirent __e1, const struct dirent __e2), alphasort64) __attribute_pure__ __nonnull ((1, 2)); # else # define alphasort alphasort64 # endif # endif # if defined __USE_GNU && defined __USE_LARGEFILE64 extern int alphasort64 (const struct dirent64 __e1, const struct dirent64 __e2) __THROW __attribute_pure__ __nonnull ((1, 2)); # endif #endif / Use XPG7. / #ifdef __USE_MISC / 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. / # ifndef __USE_FILE_OFFSET64 extern __ssize_t getdirentries (int __fd, char __restrict __buf, size_t __nbytes, __off_t __restrict __basep) __THROW __nonnull ((2, 4)); # else # ifdef __REDIRECT extern __ssize_t __REDIRECT_NTH (getdirentries, (int __fd, char __restrict __buf, size_t __nbytes, __off64_t __restrict __basep), getdirentries64) __nonnull ((2, 4)); # else # define getdirentries getdirentries64 # endif # endif # ifdef __USE_LARGEFILE64 extern __ssize_t getdirentries64 (int __fd, char __restrict __buf, size_t __nbytes, __off64_t __restrict __basep) __THROW __nonnull ((2, 4)); # endif #endif / Use misc. / #ifdef __USE_GNU / Function to compare two `struct dirent's by name & version. / # ifndef __USE_FILE_OFFSET64 extern int versionsort (const struct dirent __e1, const struct dirent __e2) __THROW __attribute_pure__ __nonnull ((1, 2)); # else # ifdef __REDIRECT extern int __REDIRECT_NTH (versionsort, (const struct dirent __e1, const struct dirent __e2), versionsort64) __attribute_pure__ __nonnull ((1, 2)); # else # define versionsort versionsort64 # endif # endif # ifdef __USE_LARGEFILE64 extern int versionsort64 (const struct dirent64 __e1, const struct dirent64 __e2) __THROW __attribute_pure__ __nonnull ((1, 2)); # endif #endif / Use GNU. / __END_DECLS #endif / dirent.h */ Back

Edit File : dirent.h | Size : 12.19 KB

/* Copyright (C) 1991-2018 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 Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 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
   Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

/*
 *	POSIX Standard: 5.1.2 Directory Operations	<dirent.h>
 */

#ifndef	_DIRENT_H
#define	_DIRENT_H	1

#include <features.h>

__BEGIN_DECLS

#include <bits/types.h>

#ifdef __USE_XOPEN
# ifndef __ino_t_defined
#  ifndef __USE_FILE_OFFSET64
typedef __ino_t ino_t;
#  else
typedef __ino64_t ino_t;
#  endif
#  define __ino_t_defined
# endif
# if defined __USE_LARGEFILE64 && !defined __ino64_t_defined
typedef __ino64_t ino64_t;
#  define __ino64_t_defined
# endif
#endif

/* This file defines `struct dirent'.

It defines the macro `_DIRENT_HAVE_D_NAMLEN' iff there is a `d_namlen'
   member that gives the length of `d_name'.

It defines the macro `_DIRENT_HAVE_D_RECLEN' iff there is a `d_reclen'
   member that gives the size of the entire directory entry.

It defines the macro `_DIRENT_HAVE_D_OFF' iff there is a `d_off'
   member that gives the file offset of the next directory entry.

It defines the macro `_DIRENT_HAVE_D_TYPE' iff there is a `d_type'
   member that gives the type of the file.
 */

#include <bits/dirent.h>

#if defined __USE_MISC && !defined d_fileno
# define d_ino	d_fileno		 /* Backward compatibility.  */
#endif

/* These macros extract size information from a `struct dirent *'.
   They may evaluate their argument multiple times, so it must not
   have side effects.  Each of these may involve a relatively costly
   call to `strlen' on some systems, so these values should be cached.

_D_EXACT_NAMLEN (DP)	returns the length of DP->d_name, not including
   its terminating null character.

_D_ALLOC_NAMLEN (DP)	returns a size at least (_D_EXACT_NAMLEN (DP) + 1);
   that is, the allocation size needed to hold the DP->d_name string.
   Use this macro when you don't need the exact length, just an upper bound.
   This macro is less likely to require calling `strlen' than _D_EXACT_NAMLEN.
   */

#ifdef _DIRENT_HAVE_D_NAMLEN
# define _D_EXACT_NAMLEN(d) ((d)->d_namlen)
# define _D_ALLOC_NAMLEN(d) (_D_EXACT_NAMLEN (d) + 1)
#else
# define _D_EXACT_NAMLEN(d) (strlen ((d)->d_name))
# ifdef _DIRENT_HAVE_D_RECLEN
#  define _D_ALLOC_NAMLEN(d) (((char *) (d) + (d)->d_reclen) - &(d)->d_name[0])
# else
#  define _D_ALLOC_NAMLEN(d) (sizeof (d)->d_name > 1 ? sizeof (d)->d_name : \
			      _D_EXACT_NAMLEN (d) + 1)
# endif
#endif

#ifdef __USE_MISC
/* File types for `d_type'.  */
enum
  {
    DT_UNKNOWN = 0,
# define DT_UNKNOWN	DT_UNKNOWN
    DT_FIFO = 1,
# define DT_FIFO	DT_FIFO
    DT_CHR = 2,
# define DT_CHR		DT_CHR
    DT_DIR = 4,
# define DT_DIR		DT_DIR
    DT_BLK = 6,
# define DT_BLK		DT_BLK
    DT_REG = 8,
# define DT_REG		DT_REG
    DT_LNK = 10,
# define DT_LNK		DT_LNK
    DT_SOCK = 12,
# define DT_SOCK	DT_SOCK
    DT_WHT = 14
# define DT_WHT		DT_WHT
  };

/* Convert between stat structure types and directory types.  */
# define IFTODT(mode)	(((mode) & 0170000) >> 12)
# define DTTOIF(dirtype)	((dirtype) << 12)
#endif

/* This is the data type of directory stream objects.
   The actual structure is opaque to users.  */
typedef struct __dirstream DIR;

/* Open a directory stream on NAME.
   Return a DIR stream on the directory, or NULL if it could not be opened.

This function is a possible cancellation point and therefore not
   marked with __THROW.  */
extern DIR *opendir (const char *__name) __nonnull ((1));

#ifdef __USE_XOPEN2K8
/* Same as opendir, but open the stream on the file descriptor FD.

This function is a possible cancellation point and therefore not
   marked with __THROW.  */
extern DIR *fdopendir (int __fd);
#endif

/* Close the directory stream DIRP.
   Return 0 if successful, -1 if not.

This function is a possible cancellation point and therefore not
   marked with __THROW.  */
extern int closedir (DIR *__dirp) __nonnull ((1));

/* 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.

If the Large File Support API is selected we have to use the
   appropriate interface.

This function is a possible cancellation point and therefore not
   marked with __THROW.  */
#ifndef __USE_FILE_OFFSET64
extern struct dirent *readdir (DIR *__dirp) __nonnull ((1));
#else
# ifdef __REDIRECT
extern struct dirent *__REDIRECT (readdir, (DIR *__dirp), readdir64)
     __nonnull ((1));
# else
#  define readdir readdir64
# endif
#endif

#ifdef __USE_LARGEFILE64
extern struct dirent64 *readdir64 (DIR *__dirp) __nonnull ((1));
#endif

#ifdef __USE_POSIX
/* Reentrant version of `readdir'.  Return in RESULT a pointer to the
   next entry.

This function is a possible cancellation point and therefore not
   marked with __THROW.  */
# ifndef __USE_FILE_OFFSET64
extern int readdir_r (DIR *__restrict __dirp,
		      struct dirent *__restrict __entry,
		      struct dirent **__restrict __result)
     __nonnull ((1, 2, 3)) __attribute_deprecated__;
# else
#  ifdef __REDIRECT
extern int __REDIRECT (readdir_r,
		       (DIR *__restrict __dirp,
			struct dirent *__restrict __entry,
			struct dirent **__restrict __result),
		       readdir64_r)
  __nonnull ((1, 2, 3)) __attribute_deprecated__;
#  else
#   define readdir_r readdir64_r
#  endif
# endif

# ifdef __USE_LARGEFILE64
extern int readdir64_r (DIR *__restrict __dirp,
			struct dirent64 *__restrict __entry,
			struct dirent64 **__restrict __result)
  __nonnull ((1, 2, 3)) __attribute_deprecated__;
# endif
#endif	/* POSIX or misc */

/* Rewind DIRP to the beginning of the directory.  */
extern void rewinddir (DIR *__dirp) __THROW __nonnull ((1));

#if defined __USE_MISC || defined __USE_XOPEN
# include <bits/types.h>

/* Seek to position POS on DIRP.  */
extern void seekdir (DIR *__dirp, long int __pos) __THROW __nonnull ((1));

/* Return the current position of DIRP.  */
extern long int telldir (DIR *__dirp) __THROW __nonnull ((1));
#endif

#ifdef __USE_XOPEN2K8

/* Return the file descriptor used by DIRP.  */
extern int dirfd (DIR *__dirp) __THROW __nonnull ((1));

# if defined __OPTIMIZE__ && defined _DIR_dirfd
#  define dirfd(dirp)	_DIR_dirfd (dirp)
# endif

# ifdef __USE_MISC
#  ifndef MAXNAMLEN
/* Get the definitions of the POSIX.1 limits.  */
#  include <bits/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
# endif

# define __need_size_t
# include <stddef.h>

/* Scan the directory DIR, calling SELECTOR 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.

This function is a cancellation point and therefore not marked with
   __THROW.  */
# ifndef __USE_FILE_OFFSET64
extern int scandir (const char *__restrict __dir,
		    struct dirent ***__restrict __namelist,
		    int (*__selector) (const struct dirent *),
		    int (*__cmp) (const struct dirent **,
				  const struct dirent **))
     __nonnull ((1, 2));
# else
#  ifdef __REDIRECT
extern int __REDIRECT (scandir,
		       (const char *__restrict __dir,
			struct dirent ***__restrict __namelist,
			int (*__selector) (const struct dirent *),
			int (*__cmp) (const struct dirent **,
				      const struct dirent **)),
		       scandir64) __nonnull ((1, 2));
#  else
#   define scandir scandir64
#  endif
# endif

# if defined __USE_GNU && defined __USE_LARGEFILE64
/* This function is like `scandir' but it uses the 64bit dirent structure.
   Please note that the CMP function must now work with struct dirent64 **.  */
extern int scandir64 (const char *__restrict __dir,
		      struct dirent64 ***__restrict __namelist,
		      int (*__selector) (const struct dirent64 *),
		      int (*__cmp) (const struct dirent64 **,
				    const struct dirent64 **))
     __nonnull ((1, 2));
# endif

# ifdef __USE_GNU
/* Similar to `scandir' but a relative DIR name is interpreted relative
   to the directory for which DFD is a descriptor.

This function is a cancellation point and therefore not marked with
   __THROW.  */
#  ifndef __USE_FILE_OFFSET64
extern int scandirat (int __dfd, const char *__restrict __dir,
		      struct dirent ***__restrict __namelist,
		      int (*__selector) (const struct dirent *),
		      int (*__cmp) (const struct dirent **,
				    const struct dirent **))
     __nonnull ((2, 3));
#  else
#   ifdef __REDIRECT
extern int __REDIRECT (scandirat,
		       (int __dfd, const char *__restrict __dir,
			struct dirent ***__restrict __namelist,
			int (*__selector) (const struct dirent *),
			int (*__cmp) (const struct dirent **,
				      const struct dirent **)),
		       scandirat64) __nonnull ((2, 3));
#   else
#    define scandirat scandirat64
#   endif
#  endif

/* This function is like `scandir' but it uses the 64bit dirent structure.
   Please note that the CMP function must now work with struct dirent64 **.  */
extern int scandirat64 (int __dfd, const char *__restrict __dir,
			struct dirent64 ***__restrict __namelist,
			int (*__selector) (const struct dirent64 *),
			int (*__cmp) (const struct dirent64 **,
				      const struct dirent64 **))
     __nonnull ((2, 3));
# endif

/* Function to compare two `struct dirent's alphabetically.  */
# ifndef __USE_FILE_OFFSET64
extern int alphasort (const struct dirent **__e1,
		      const struct dirent **__e2)
     __THROW __attribute_pure__ __nonnull ((1, 2));
# else
#  ifdef __REDIRECT
extern int __REDIRECT_NTH (alphasort,
			   (const struct dirent **__e1,
			    const struct dirent **__e2),
			   alphasort64) __attribute_pure__ __nonnull ((1, 2));
#  else
#   define alphasort alphasort64
#  endif
# endif

# if defined __USE_GNU && defined __USE_LARGEFILE64
extern int alphasort64 (const struct dirent64 **__e1,
			const struct dirent64 **__e2)
     __THROW __attribute_pure__ __nonnull ((1, 2));
# endif
#endif /* Use XPG7.  */

#ifdef __USE_MISC
/* 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.  */
# ifndef __USE_FILE_OFFSET64
extern __ssize_t getdirentries (int __fd, char *__restrict __buf,
				size_t __nbytes,
				__off_t *__restrict __basep)
     __THROW __nonnull ((2, 4));
# else
#  ifdef __REDIRECT
extern __ssize_t __REDIRECT_NTH (getdirentries,
				 (int __fd, char *__restrict __buf,
				  size_t __nbytes,
				  __off64_t *__restrict __basep),
				 getdirentries64) __nonnull ((2, 4));
#  else
#   define getdirentries getdirentries64
#  endif
# endif

# ifdef __USE_LARGEFILE64
extern __ssize_t getdirentries64 (int __fd, char *__restrict __buf,
				  size_t __nbytes,
				  __off64_t *__restrict __basep)
     __THROW __nonnull ((2, 4));
# endif
#endif /* Use misc.  */

#ifdef __USE_GNU
/* Function to compare two `struct dirent's by name & version.  */
# ifndef __USE_FILE_OFFSET64
extern int versionsort (const struct dirent **__e1,
			const struct dirent **__e2)
     __THROW __attribute_pure__ __nonnull ((1, 2));
# else
#  ifdef __REDIRECT
extern int __REDIRECT_NTH (versionsort,
			   (const struct dirent **__e1,
			    const struct dirent **__e2),
			   versionsort64)
     __attribute_pure__ __nonnull ((1, 2));
#  else
#   define versionsort versionsort64
#  endif
# endif

# ifdef __USE_LARGEFILE64
extern int versionsort64 (const struct dirent64 **__e1,
			  const struct dirent64 **__e2)
     __THROW __attribute_pure__ __nonnull ((1, 2));
# endif
#endif /* Use GNU.  */

__END_DECLS

#endif /* dirent.h  */

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