/*-

 * Copyright (c) 1989, 1993

 *	The Regents of the University of California.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 4. Neither the name of the University nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 *

 *	@(#)dirent.h	8.2 (Berkeley) 7/28/94

 * $FreeBSD: src/include/dirent.h,v 1.14 2003/12/07 21:10:06 marcel Exp $

 */

#ifndef _DIRENT_H_

#define _DIRENT_H_

/*

 * The kernel defines the format of directory entries returned by

 * the getdirentries(2) system call.

 */

#include <sys/cdefs.h>

#include <sys/dirent.h>

#if __BSD_VISIBLE || __XSI_VISIBLE

/*

 * XXX this is probably illegal in the __XSI_VISIBLE case, but brings us closer

 * to the specification.

 */

#define	d_ino		d_fileno	/* backward and XSI compatibility */

#endif

#if __BSD_VISIBLE

#include <sys/_null.h>

/* definitions for library routines operating on directories. */

#define	DIRBLKSIZ	1024

struct _telldir;		/* see telldir.h */

/* structure describing an open directory. */

typedef struct _dirdesc {

	int	dd_fd;		/* file descriptor associated with directory */

	long	dd_loc;		/* offset in current buffer */

	long	dd_size;	/* amount of data returned by getdirentries */

	char	*dd_buf;	/* data buffer */

	int	dd_len;		/* size of data buffer */

	long	dd_seek;	/* magic cookie returned by getdirentries */

	long	dd_rewind;	/* magic cookie for rewinding */

	int	dd_flags;	/* flags for readdir */

	void	*dd_lock;	/* hack to avoid including <pthread.h> */

	struct _telldir *dd_td;	/* telldir position recording */

} DIR;

#define	dirfd(dirp)	((dirp)->dd_fd)

/* flags for opendir2 */

#define DTF_HIDEW	0x0001	/* hide whiteout entries */

#define DTF_NODUP	0x0002	/* don't return duplicate names */

#define DTF_REWIND	0x0004	/* rewind after reading union stack */

#define __DTF_READALL	0x0008	/* everything has been read */

#else /* !__BSD_VISIBLE */

typedef	void *	DIR;

#endif /* __BSD_VISIBLE */

#ifndef _KERNEL

__BEGIN_DECLS

#if __BSD_VISIBLE

IMPORT_C int	 alphasort(const void *, const void *);

/* #define getdirentries _getdirentries */

IMPORT_C int	 getdirentries(int, char *, int, long *);

#endif

IMPORT_C DIR	*opendir(const char *);

IMPORT_C struct dirent *

	 readdir(DIR *);

IMPORT_C void	 rewinddir(DIR *);

IMPORT_C int	 alphasort(const void *, const void *);

IMPORT_C int	 scandir(const char *, struct dirent ***,

	    int (*)(struct dirent *), int (*)(const void *, const void *));

#if __XSI_VISIBLE

IMPORT_C void	 seekdir(DIR *, long);

IMPORT_C long	 telldir(DIR *);

#endif

IMPORT_C int	 closedir(DIR *);

__END_DECLS

#endif /* !_KERNEL */

#endif /* !_DIRENT_H_ */