/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * 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.
 */

#ifndef _FTS_COMPAT15_H_
#define _FTS_COMPAT15_H_

typedef struct {
        struct _ftsent15 *fts_cur;      /* current node */
        struct _ftsent15 *fts_child;    /* linked list of children */
        struct _ftsent15 **fts_array;   /* sort array */
        dev_t            fts_dev;       /* starting device # */
        char            *fts_path;      /* path for this descent */
        int              fts_rfd;       /* fd for root */
        __size_t         fts_pathlen;   /* sizeof(path) */
        __size_t         fts_nitems;    /* elements in the sort array */
        union {
                int     (*fts_compar)   /* compare function */
                    (const struct _ftsent15 * const *,
                    const struct _ftsent15 * const *);
#ifdef __BLOCKS__
                int     (^fts_compar_b)
                    (const struct _ftsent15 * const *,
                    const struct _ftsent15 * const *);
#else
                void    *fts_compar_b;
#endif
        };
        int              fts_options;   /* fts_open options, global flags */
        void            *fts_clientptr; /* thunk for sort function */
} FTS15;

typedef struct _ftsent15 {
        struct _ftsent15 *fts_cycle;    /* cycle node */
        struct _ftsent15 *fts_parent;   /* parent directory */
        struct _ftsent15 *fts_link;     /* next file in directory */
        long long        fts_number;    /* local numeric value */
        void            *fts_pointer;   /* local address value */
        char            *fts_accpath;   /* access path */
        char            *fts_path;      /* root path */
        int              fts_errno;     /* errno for this node */
        int              fts_symfd;     /* fd for symlink */
        __size_t         fts_pathlen;   /* strlen(fts_path) */
        __size_t         fts_namelen;   /* strlen(fts_name) */
        __ino_t          fts_ino;       /* inode */
        __dev_t          fts_dev;       /* device */
        __nlink_t        fts_nlink;     /* link count */
        long             fts_level;     /* depth (-1 to N) */
        int              fts_info;      /* user status for FTSENT structure */
        unsigned         fts_flags;     /* private flags for FTSENT structure */
        int              fts_instr;     /* fts_set() instructions */
        struct stat     *fts_statp;     /* stat(2) information */
        char            *fts_name;      /* file name */
        FTS15           *fts_fts;       /* back pointer to main FTS */
} FTSENT15;

FTSENT15        *freebsd15_fts_children(FTS15 *, int);
int              freebsd15_fts_close(FTS15 *);
void            *freebsd15_fts_get_clientptr(FTS15 *);
#define          freebsd15_fts_get_clientptr(fts) ((fts)->fts_clientptr)
FTS15           *freebsd15_fts_get_stream(FTSENT15 *);
#define          freebsd15_fts_get_stream(ftsent) ((ftsent)->fts_fts)
FTS15           *freebsd15_fts_open(char * const *, int,
                    int (*)(const FTSENT15 * const *,
                    const FTSENT15 * const *));
FTSENT15        *freebsd15_fts_read(FTS15 *);
int              freebsd15_fts_set(FTS15 *, FTSENT15 *, int);
void             freebsd15_fts_set_clientptr(FTS15 *, void *);

#endif /* !_FTS_COMPAT15_H_ */