/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2014 Garrett D'Amore <garrett@damore.org>
 *
 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1988 AT&T */
/*        All Rights Reserved   */


#ifndef _FTW_H
#define _FTW_H

#include <sys/feature_tests.h>

#include <sys/types.h>
#include <sys/stat.h>

#ifdef  __cplusplus
extern "C" {
#endif

/*
 *      Codes for the third argument to the user-supplied function.
 */

#define FTW_F   0       /* file */
#define FTW_D   1       /* directory */
#define FTW_DNR 2       /* directory without read permission */
#define FTW_NS  3       /* unknown type, stat failed */
#define FTW_SL  4       /* symbolic link */
#define FTW_DP  6       /* directory */
#define FTW_SLN 7       /* symbolic link that points to nonexistent file */
#define FTW_DL  8       /* private interface for find utility */

/*
 *      Codes for the fourth argument to nftw.  You can specify the
 *      union of these flags.
 */

#define FTW_PHYS        01  /* use lstat instead of stat */
#define FTW_MOUNT       02  /* do not cross a mount point */
#define FTW_CHDIR       04  /* chdir to each directory before reading */
#define FTW_DEPTH       010 /* call descendents before calling the parent */
#define FTW_ANYERR      020 /* return FTW_NS on any stat failure */
#define FTW_HOPTION     040 /* private interface for find utility */
#define FTW_NOLOOP      0100 /* private interface for find utility */

#if defined(__EXTENSIONS__) || !defined(_XOPEN_SOURCE) || defined(_XPG4_2)
struct FTW
{
#if defined(_XPG4_2)
        int     __quit;
#else
        int     quit;
#endif
        int     base;
        int     level;
};
#endif /* defined(__EXTENSIONS__) || !defined(_XOPEN_SOURCE) ... */

/*
 * legal values for quit
 */

#define FTW_SKD         1
#define FTW_FOLLOW      2
#define FTW_PRUNE       4

/* large file compilation environment setup */
#if !defined(_LP64) && _FILE_OFFSET_BITS == 64
#ifdef  __PRAGMA_REDEFINE_EXTNAME
#pragma redefine_extname        _xftw   _xftw64
#pragma redefine_extname        _ftw    _ftw64
#if !defined(_XOPEN_SOURCE) || defined(_XPG5)
#pragma redefine_extname        nftw    nftw64
#endif
#else   /* __PRAGMA_REDEFINE_EXTNAME */
#define _xftw                   _xftw64
#define _ftw                    _ftw64
#if !defined(_XOPEN_SOURCE) || defined(_XPG5)
#define nftw                    nftw64
#endif
#endif  /* __PRAGMA_REDEFINE_EXTNAME */
#endif /* !_LP64 && _FILE_OFFSET_BITS == 64 */

/* In the LP64 compilation environment, all APIs are already large file */
#if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
#ifdef  __PRAGMA_REDEFINE_EXTNAME
#pragma redefine_extname        _xftw64         _xftw
#pragma redefine_extname        _ftw64          _ftw
#if !defined(_XOPEN_SOURCE) || defined(_XPG5)
#pragma redefine_extname        nftw64          nftw
#endif
#else   /* __PRAGMA_REDEFINE_EXTNAME */
#define _xftw64         _xftw
#define _ftw64          _ftw
#if !defined(_XOPEN_SOURCE) || defined(_XPG5)
#define nftw64          nftw
#endif
#endif  /* __PRAGMA_REDEFINE_EXTNAME */
#endif  /* _LP64 && _LARGEFILE64_SOURCE */

extern int ftw(const char *,
        int (*)(const char *, const struct stat *, int), int);
extern int _xftw(int, const char *,
        int (*)(const char *, const struct stat *, int), int);
#if defined(__EXTENSIONS__) || !defined(_XOPEN_SOURCE) || defined(_XPG4_2)
extern int nftw(const char *,
        int (*)(const char *, const struct stat *, int, struct FTW *),
        int, int);
#endif /* defined(__EXTENSIONS__) || !defined(_XOPEN_SOURCE) ... */

/*
 * transitional large file interface versions
 */
#if     defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
            !defined(__PRAGMA_REDEFINE_EXTNAME))
extern int ftw64(const char *,
        int (*)(const char *, const struct stat64 *, int), int);
extern int _xftw64(int, const char *,
        int (*)(const char *, const struct stat64 *, int), int);
#if !defined(_XOPEN_SOURCE)
extern int nftw64(const char *,
        int (*)(const char *, const struct stat64 *, int, struct FTW *),
        int, int);
#endif /* !defined(_XOPEN_SOURCE) */
#endif /* _LARGEFILE64_SOURCE .. */

#define _XFTWVER        2       /* version of file tree walk */

#define ftw(path, fn, depth)    _xftw(_XFTWVER, (path), (fn), (depth))

#if     defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
            !defined(__PRAGMA_REDEFINE_EXTNAME))
#define ftw64(path, fn, depth)  _xftw64(_XFTWVER, (path), (fn), (depth))
#endif

#ifdef  __cplusplus
}
#endif

#endif  /* _FTW_H */