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fts.h
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/* File tree traversal functions declarations. Copyright (C) 1994-2018 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 <http://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 */
