/* File tree traversal functions declarations.
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Copyright (C) 1994-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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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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* 4. 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 1
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#include <features.h>
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#include <sys/types.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) (const void *, const void *); /* compare fn */
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#define FTS_COMFOLLOW 0x0001 /* follow command line symlinks */
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#define FTS_LOGICAL 0x0002 /* logical walk */
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#define FTS_NOCHDIR 0x0004 /* don't change directories */
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#define FTS_NOSTAT 0x0008 /* don't get stat info */
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#define FTS_PHYSICAL 0x0010 /* physical walk */
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#define FTS_SEEDOT 0x0020 /* return dot and dot-dot */
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#define FTS_XDEV 0x0040 /* don't cross devices */
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#define FTS_WHITEOUT 0x0080 /* return whiteout information */
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#define FTS_OPTIONMASK 0x00ff /* valid user option mask */
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#define FTS_NAMEONLY 0x0100 /* (private) child names only */
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#define FTS_STOP 0x0200 /* (private) unrecoverable error */
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int fts_options; /* fts_open options, global flags */
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} FTS;
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#ifdef __USE_LARGEFILE64
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typedef struct {
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struct _ftsent64 *fts_cur; /* current node */
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struct _ftsent64 *fts_child; /* linked list of children */
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struct _ftsent64 **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) (const void *, const void *); /* compare fn */
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int fts_options; /* fts_open options, global flags */
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} FTS64;
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#endif
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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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unsigned short fts_pathlen; /* strlen(fts_path) */
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unsigned 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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unsigned 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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unsigned 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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unsigned 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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#ifdef __USE_LARGEFILE64
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typedef struct _ftsent64 {
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struct _ftsent64 *fts_cycle; /* cycle node */
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struct _ftsent64 *fts_parent; /* parent directory */
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struct _ftsent64 *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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unsigned short fts_pathlen; /* strlen(fts_path) */
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unsigned short fts_namelen; /* strlen(fts_name) */
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ino64_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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short fts_level; /* depth (-1 to N) */
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unsigned short fts_info; /* user flags for FTSENT structure */
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unsigned short fts_flags; /* private flags for FTSENT structure */
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unsigned short fts_instr; /* fts_set() instructions */
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struct stat64 *fts_statp; /* stat(2) information */
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char fts_name[1]; /* file name */
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} FTSENT64;
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#endif
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__BEGIN_DECLS
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#ifndef __USE_FILE_OFFSET64
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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) __THROW;
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#else
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# ifdef __REDIRECT
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FTSENT *__REDIRECT (fts_children, (FTS *, int), fts64_children);
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int __REDIRECT (fts_close, (FTS *), fts64_close);
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FTS *__REDIRECT (fts_open, (char * const *, int,
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int (*)(const FTSENT **, const FTSENT **)),
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fts64_open);
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FTSENT *__REDIRECT (fts_read, (FTS *), fts64_read);
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int __REDIRECT_NTH (fts_set, (FTS *, FTSENT *, int), fts64_set);
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# else
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# define fts_children fts64_children
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# define fts_close fts64_close
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# define fts_open fts64_open
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# define fts_read fts64_read
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# define fts_set fts64_set
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# endif
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#endif
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#ifdef __USE_LARGEFILE64
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FTSENT64 *fts64_children (FTS64 *, int);
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int fts64_close (FTS64 *);
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FTS64 *fts64_open (char * const *, int,
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int (*)(const FTSENT64 **, const FTSENT64 **));
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FTSENT64 *fts64_read (FTS64 *);
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int fts64_set (FTS64 *, FTSENT64 *, int) __THROW;
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#endif
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__END_DECLS
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#endif /* fts.h */
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