/*-
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 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	8.1 (Berkeley) 6/2/93
 */

#ifndef _SYS_DIRENT_H_
#define _SYS_DIRENT_H_

#ifdef __cplusplus
extern "C" {
#endif

#include <sys/cdefs.h>
#include <sys/syslimits.h>

/*
 * The dirent structure defines the format of directory entries returned by
 * the getdirentries(2) system call.
 *
 * A directory entry has a struct dirent at the front of it, containing its
 * inode number, the length of the entry, and the length of the name
 * contained in the entry.  These are followed by the name padded to a 4
 * byte boundary with null bytes.  All names are guaranteed null terminated.
 * The maximum length of a name in a directory is MAXNAMLEN.
 */

struct dirent {
    unsigned long  d_fileno;             /* file number of entry */
    unsigned short d_reclen;             /* length of this record */
    unsigned char  d_type;               /* file type, see below */
    unsigned char  d_namlen;             /* length of string in d_name */
    char           d_name[NAME_MAX + 1]; /* name must be no longer than this */
};

/*
 * File types
 */
#define DT_UNKNOWN 0
#define DT_FIFO    1
#define DT_CHR     2
#define DT_DIR     4
#define DT_BLK     6
#define DT_REG     8
#define DT_LNK     10
#define DT_SOCK    12

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

/*
 * The kernel defines the format of directory entries returned by
 * the getdirentries(2) system call.
 */

#define d_ino d_fileno /* backward compatibility */

/* 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 */
} DIR;

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

#ifdef __cplusplus
}
#endif

#endif /* !_SYS_DIRENT_H_ */
