LCOM1920-T02G10

/*        $NetBSD: dirent.h,v 1.35 2012/07/30 23:11:13 yamt Exp $        */

/*-

 * 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. 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

 */

#ifndef _DIRENT_H_

#define _DIRENT_H_

#include <sys/featuretest.h>

#include <sys/types.h>

/*

 * The kernel defines the format of directory entries returned by 

 * the getdents(2) system call.

 */

#include <sys/dirent.h>

#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)

#define        d_ino                d_fileno        /* backward compatibility */

#endif

typedef struct _dirdesc DIR;

#if defined(_NETBSD_SOURCE)

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

#define        DIRBLKSIZ        1024

/* structure describing an open directory. */

struct _dirdesc {

        /*

         * dd_fd should be kept intact to preserve ABI compat.  see dirfd().

         */

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

        /*

         * the rest is hidden from user.

         */

        long        dd_loc;                /* offset in current buffer */

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

        char        *dd_buf;        /* data buffer */

        int        dd_len;                /* size of data buffer */

        off_t        dd_seek;        /* magic cookie returned by getdents */

        void        *dd_internal;        /* state for seekdir/telldir */

        int        dd_flags;        /* flags for readdir */

        void        *dd_lock;        /* lock for concurrent access */

};

#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 */

#define __DTF_RETRY_ON_BADCOOKIE 0x0001        /* retry on EINVAL

                                        (only valid with __DTF_READALL) */

#include <sys/null.h>

#endif

#ifndef _KERNEL

#include <sys/cdefs.h>

__BEGIN_DECLS

int closedir(DIR *);

void rewinddir(DIR *);

#ifndef __LIBC12_SOURCE__

DIR *opendir(const char *) __RENAME(__opendir30);

struct dirent *readdir(DIR *) __RENAME(__readdir30);

int readdir_r(DIR * __restrict, struct dirent * __restrict,

    struct dirent ** __restrict) __RENAME(__readdir_r30);

#endif

#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)

void seekdir(DIR *, long);

long telldir(DIR *);

#endif /* defined(_NETBSD_SOURCE) || defined(_XOPEN_SOURCE) */

#if defined(_NETBSD_SOURCE)

#ifndef __LIBC12_SOURCE__

DIR *fdopendir(int);

DIR *__opendir2(const char *, int) __RENAME(__opendir230);

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

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

    __RENAME(__scandir30);

int getdents(int, char *, size_t) __RENAME(__getdents30);

int alphasort(const void *, const void *) __RENAME(__alphasort30);

#endif

#endif /* defined(_NETBSD_SOURCE) */

__END_DECLS

#endif /* !_KERNEL */

#endif /* !_DIRENT_H_ */