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/* File tree traversal functions declarations.
Copyright (C) 1994-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/*
* 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.
* 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.
*
* @(#)fts.h 8.3 (Berkeley) 8/14/94
*/
#ifndef _FTS_H
#define _FTS_H 1
#include <features.h>
#include <sys/types.h>
typedef struct {
struct _ftsent *fts_cur; /* current node */
struct _ftsent *fts_child; /* linked list of children */
struct _ftsent **fts_array; /* sort array */
dev_t fts_dev; /* starting device # */
char *fts_path; /* path for this descent */
int fts_rfd; /* fd for root */
int fts_pathlen; /* sizeof(path) */
int fts_nitems; /* elements in the sort array */
int (*fts_compar) (const void *, const void *); /* compare fn */
#define FTS_COMFOLLOW 0x0001 /* follow command line symlinks */
#define FTS_LOGICAL 0x0002 /* logical walk */
#define FTS_NOCHDIR 0x0004 /* don't change directories */
#define FTS_NOSTAT 0x0008 /* don't get stat info */
#define FTS_PHYSICAL 0x0010 /* physical walk */
#define FTS_SEEDOT 0x0020 /* return dot and dot-dot */
#define FTS_XDEV 0x0040 /* don't cross devices */
#define FTS_WHITEOUT 0x0080 /* return whiteout information */
#define FTS_OPTIONMASK 0x00ff /* valid user option mask */
#define FTS_NAMEONLY 0x0100 /* (private) child names only */
#define FTS_STOP 0x0200 /* (private) unrecoverable error */
int fts_options; /* fts_open options, global flags */
} FTS;
#ifdef __USE_LARGEFILE64
typedef struct {
struct _ftsent64 *fts_cur; /* current node */
struct _ftsent64 *fts_child; /* linked list of children */
struct _ftsent64 **fts_array; /* sort array */
dev_t fts_dev; /* starting device # */
char *fts_path; /* path for this descent */
int fts_rfd; /* fd for root */
int fts_pathlen; /* sizeof(path) */
int fts_nitems; /* elements in the sort array */
int (*fts_compar) (const void *, const void *); /* compare fn */
int fts_options; /* fts_open options, global flags */
} FTS64;
#endif
typedef struct _ftsent {
struct _ftsent *fts_cycle; /* cycle node */
struct _ftsent *fts_parent; /* parent directory */
struct _ftsent *fts_link; /* next file in directory */
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 */
unsigned short fts_pathlen; /* strlen(fts_path) */
unsigned short fts_namelen; /* strlen(fts_name) */
ino_t fts_ino; /* inode */
dev_t fts_dev; /* device */
nlink_t fts_nlink; /* link count */
#define FTS_ROOTPARENTLEVEL -1
#define FTS_ROOTLEVEL 0
short fts_level; /* depth (-1 to N) */
#define FTS_D 1 /* preorder directory */
#define FTS_DC 2 /* directory that causes cycles */
#define FTS_DEFAULT 3 /* none of the above */
#define FTS_DNR 4 /* unreadable directory */
#define FTS_DOT 5 /* dot or dot-dot */
#define FTS_DP 6 /* postorder directory */
#define FTS_ERR 7 /* error; errno is set */
#define FTS_F 8 /* regular file */
#define FTS_INIT 9 /* initialized only */
#define FTS_NS 10 /* stat(2) failed */
#define FTS_NSOK 11 /* no stat(2) requested */
#define FTS_SL 12 /* symbolic link */
#define FTS_SLNONE 13 /* symbolic link without target */
#define FTS_W 14 /* whiteout object */
unsigned short fts_info; /* user flags for FTSENT structure */
#define FTS_DONTCHDIR 0x01 /* don't chdir .. to the parent */
#define FTS_SYMFOLLOW 0x02 /* followed a symlink to get here */
unsigned short fts_flags; /* private flags for FTSENT structure */
#define FTS_AGAIN 1 /* read node again */
#define FTS_FOLLOW 2 /* follow symbolic link */
#define FTS_NOINSTR 3 /* no instructions */
#define FTS_SKIP 4 /* discard node */
unsigned short fts_instr; /* fts_set() instructions */
struct stat *fts_statp; /* stat(2) information */
char fts_name[1]; /* file name */
} FTSENT;
#ifdef __USE_LARGEFILE64
typedef struct _ftsent64 {
struct _ftsent64 *fts_cycle; /* cycle node */
struct _ftsent64 *fts_parent; /* parent directory */
struct _ftsent64 *fts_link; /* next file in directory */
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 */
unsigned short fts_pathlen; /* strlen(fts_path) */
unsigned short fts_namelen; /* strlen(fts_name) */
ino64_t fts_ino; /* inode */
dev_t fts_dev; /* device */
nlink_t fts_nlink; /* link count */
short fts_level; /* depth (-1 to N) */
unsigned short fts_info; /* user flags for FTSENT structure */
unsigned short fts_flags; /* private flags for FTSENT structure */
unsigned short fts_instr; /* fts_set() instructions */
struct stat64 *fts_statp; /* stat(2) information */
char fts_name[1]; /* file name */
} FTSENT64;
#endif
__BEGIN_DECLS
#ifndef __USE_FILE_OFFSET64
FTSENT *fts_children (FTS *, int);
int fts_close (FTS *);
FTS *fts_open (char * const *, int,
int (*)(const FTSENT **, const FTSENT **));
FTSENT *fts_read (FTS *);
int fts_set (FTS *, FTSENT *, int) __THROW;
#else
# ifdef __REDIRECT
FTSENT *__REDIRECT (fts_children, (FTS *, int), fts64_children);
int __REDIRECT (fts_close, (FTS *), fts64_close);
FTS *__REDIRECT (fts_open, (char * const *, int,
int (*)(const FTSENT **, const FTSENT **)),
fts64_open);
FTSENT *__REDIRECT (fts_read, (FTS *), fts64_read);
int __REDIRECT_NTH (fts_set, (FTS *, FTSENT *, int), fts64_set);
# else
# define fts_children fts64_children
# define fts_close fts64_close
# define fts_open fts64_open
# define fts_read fts64_read
# define fts_set fts64_set
# endif
#endif
#ifdef __USE_LARGEFILE64
FTSENT64 *fts64_children (FTS64 *, int);
int fts64_close (FTS64 *);
FTS64 *fts64_open (char * const *, int,
int (*)(const FTSENT64 **, const FTSENT64 **));
FTSENT64 *fts64_read (FTS64 *);
int fts64_set (FTS64 *, FTSENT64 *, int) __THROW;
#endif
__END_DECLS
#endif /* fts.h */
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