source: trunk/src/emx/include/dirent.h@ 2352

/* dirent.h,v 1.4 2004/09/14 22:27:32 bird Exp */
/** @file
 * FreeBSD 5.1
 * @changes bird: Merged in EMX stuff and internal LIBC stuff.
 */

/*-
 * 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    8.2 (Berkeley) 7/28/94
 * $FreeBSD: src/include/dirent.h,v 1.13 2002/09/10 18:12:16 mike 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

/* definitions for library routines operating on directories. */
#define DIRBLKSIZ       1024

struct _telldir;                /* see telldir.h */

/* bird: EMX internal structure. */
struct _dircontents
{
  struct _dircontents * _d_next;
  char *                _d_entry;
  __off_t               _d_size;
  unsigned short        _d_time;
  unsigned short        _d_date;
  unsigned short        _d_attr;
  unsigned char         _d_type;
};

/* structure describing an open directory. */
typedef struct _dirdesc {
#if 0
        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 */
#else
        int                   dd_id;
        long                  dd_loc;
        struct _dircontents * dd_contents;
        struct _dircontents * dd_cp;
        struct dirent         dd_dirent;
#endif
} DIR;

#if 0 /* bird: we do it differently. */
#define dirfd(dirp)     ((dirp)->dd_fd)
#else                        /* bird */
#define dirfd(dirp)     (-2) /* bird */
#endif                       /* bird */

/* 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 */

#ifndef NULL
#define NULL    0
#endif

#else /* !__BSD_VISIBLE */

typedef void *  DIR;

#endif /* __BSD_VISIBLE */

#ifndef _KERNEL

__BEGIN_DECLS
#if __BSD_VISIBLE
/** @todo DIR   *__opendir2(const char *, int); */
/** @todo int    alphasort(const void *, const void *); */
/** @todo int    getdents(int, char *, int); */
/** @todo int    getdirentries(int, char *, int, long *); */
#endif
DIR     *opendir(const char *);
struct dirent *
         readdir(DIR *);
#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 500
int      readdir_r(DIR *, struct dirent *, struct dirent **);
#endif
void     rewinddir(DIR *);
#if __BSD_VISIBLE
int      scandir(const char *, struct dirent ***,
            int (*)(struct dirent *), int (*)(const void *, const void *));
#endif
#if __XSI_VISIBLE
void     seekdir(DIR *, long);
long     telldir(DIR *);
#endif
int      closedir(DIR *);


/* bird: EMX extra - start */
DIR *_opendir (__const__ char *);
struct dirent *_readdir (DIR *);
void _seekdir (DIR *, long);
long _telldir (DIR *);
int _closedir (DIR *);
void _rewinddir (DIR *);
/* bird: EMX extra - end */

__END_DECLS

#endif /* !_KERNEL */

#endif /* !_DIRENT_H_ */