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/*
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 * Copyright (c) 1989, 1993
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 *        The Regents of the University of California.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 *        @(#)fts.h        8.3 (Berkeley) 8/14/94
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 */
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#ifndef        _FTS_H_
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#define        _FTS_H_
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typedef struct {
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        struct _ftsent *fts_cur;        /* current node */
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        struct _ftsent *fts_child;        /* linked list of children */
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        struct _ftsent **fts_array;        /* sort array */
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        dev_t fts_dev;                        /* starting device # */
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        char *fts_path;                        /* path for this descent */
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        int fts_rfd;                        /* fd for root */
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        int fts_pathlen;                /* sizeof(path) */
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        int fts_nitems;                        /* elements in the sort array */
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        int (*fts_compar)                /* compare function */
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                (const struct _ftsent **, const struct _ftsent **);
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#define        FTS_COMFOLLOW        0x001                /* follow command line symlinks */
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#define        FTS_LOGICAL        0x002                /* logical walk */
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#define        FTS_NOCHDIR        0x004                /* don't change directories */
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#define        FTS_NOSTAT        0x008                /* don't get stat info */
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#define        FTS_PHYSICAL        0x010                /* physical walk */
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#define        FTS_SEEDOT        0x020                /* return dot and dot-dot */
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#define        FTS_XDEV        0x040                /* don't cross devices */
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#if 0
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#define        FTS_WHITEOUT        0x080                /* return whiteout information */
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#endif
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#define        FTS_OPTIONMASK        0x0ff                /* valid user option mask */
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#define        FTS_NAMEONLY        0x100                /* (private) child names only */
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#define        FTS_STOP        0x200                /* (private) unrecoverable error */
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        int fts_options;                /* fts_open options, global flags */
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} FTS;
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typedef struct _ftsent {
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        struct _ftsent *fts_cycle;        /* cycle node */
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        struct _ftsent *fts_parent;        /* parent directory */
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        struct _ftsent *fts_link;        /* next file in directory */
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        long fts_number;                /* local numeric value */
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        void *fts_pointer;                /* local address value */
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        char *fts_accpath;                /* access path */
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        char *fts_path;                        /* root path */
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        int fts_errno;                        /* errno for this node */
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        int fts_symfd;                        /* fd for symlink */
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        u_short fts_pathlen;                /* strlen(fts_path) */
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        u_short fts_namelen;                /* strlen(fts_name) */
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        ino_t fts_ino;                        /* inode */
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        dev_t fts_dev;                        /* device */
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        nlink_t fts_nlink;                /* link count */
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#define        FTS_ROOTPARENTLEVEL        -1
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#define        FTS_ROOTLEVEL                 0
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        short fts_level;                /* depth (-1 to N) */
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#define        FTS_D                 1                /* preorder directory */
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#define        FTS_DC                 2                /* directory that causes cycles */
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#define        FTS_DEFAULT         3                /* none of the above */
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#define        FTS_DNR                 4                /* unreadable directory */
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#define        FTS_DOT                 5                /* dot or dot-dot */
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#define        FTS_DP                 6                /* postorder directory */
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#define        FTS_ERR                 7                /* error; errno is set */
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#define        FTS_F                 8                /* regular file */
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#define        FTS_INIT         9                /* initialized only */
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#define        FTS_NS                10                /* stat(2) failed */
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#define        FTS_NSOK        11                /* no stat(2) requested */
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#define        FTS_SL                12                /* symbolic link */
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#define        FTS_SLNONE        13                /* symbolic link without target */
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#define        FTS_W                14                /* whiteout object */
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        u_short fts_info;                /* user flags for FTSENT structure */
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#define        FTS_DONTCHDIR         0x01                /* don't chdir .. to the parent */
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#define        FTS_SYMFOLLOW         0x02                /* followed a symlink to get here */
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#define        FTS_ISW                 0x04                /* this is a whiteout object */
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        u_short fts_flags;                /* private flags for FTSENT structure */
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#define        FTS_AGAIN         1                /* read node again */
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#define        FTS_FOLLOW         2                /* follow symbolic link */
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#define        FTS_NOINSTR         3                /* no instructions */
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#define        FTS_SKIP         4                /* discard node */
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        u_short fts_instr;                /* fts_set() instructions */
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        struct stat *fts_statp;                /* stat(2) information */
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        char fts_name[1];                /* file name */
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} FTSENT;
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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FTSENT        *fts_children(FTS *, int);
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int         fts_close(FTS *);
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FTS        *fts_open(char * const *, int,
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            int (*)(const FTSENT **, const FTSENT **));
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FTSENT        *fts_read(FTS *);
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int         fts_set(FTS *, FTSENT *, int);
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__END_DECLS
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#endif /* !_FTS_H_ */