fts.h revision 175688
1/* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)fts.h 8.3 (Berkeley) 8/14/94 34 * $FreeBSD: head/include/fts.h 175688 2008-01-26 17:09:40Z yar $ 35 */ 36 37#ifndef _FTS_H_ 38#define _FTS_H_ 39 40typedef struct { 41 struct _ftsent *fts_cur; /* current node */ 42 struct _ftsent *fts_child; /* linked list of children */ 43 struct _ftsent **fts_array; /* sort array */ 44 dev_t fts_dev; /* starting device # */ 45 char *fts_path; /* path for this descent */ 46 int fts_rfd; /* fd for root */ 47 size_t fts_pathlen; /* sizeof(path) */ 48 size_t fts_nitems; /* elements in the sort array */ 49 int (*fts_compar) /* compare function */ 50 (const struct _ftsent * const *, const struct _ftsent * const *); 51 52#define FTS_COMFOLLOW 0x001 /* follow command line symlinks */ 53#define FTS_LOGICAL 0x002 /* logical walk */ 54#define FTS_NOCHDIR 0x004 /* don't change directories */ 55#define FTS_NOSTAT 0x008 /* don't get stat info */ 56#define FTS_PHYSICAL 0x010 /* physical walk */ 57#define FTS_SEEDOT 0x020 /* return dot and dot-dot */ 58#define FTS_XDEV 0x040 /* don't cross devices */ 59#define FTS_WHITEOUT 0x080 /* return whiteout information */ 60#define FTS_OPTIONMASK 0x0ff /* valid user option mask */ 61 62#define FTS_NAMEONLY 0x100 /* (private) child names only */ 63#define FTS_STOP 0x200 /* (private) unrecoverable error */ 64 int fts_options; /* fts_open options, global flags */ 65 void *fts_clientptr; /* thunk for sort function */ 66} FTS; 67 68typedef struct _ftsent { 69 struct _ftsent *fts_cycle; /* cycle node */ 70 struct _ftsent *fts_parent; /* parent directory */ 71 struct _ftsent *fts_link; /* next file in directory */ 72 long long fts_number; /* local numeric value */ 73#define fts_bignum fts_number /* XXX non-std, should go away */ 74 void *fts_pointer; /* local address value */ 75 char *fts_accpath; /* access path */ 76 char *fts_path; /* root path */ 77 int fts_errno; /* errno for this node */ 78 int fts_symfd; /* fd for symlink */ 79 size_t fts_pathlen; /* strlen(fts_path) */ 80 size_t fts_namelen; /* strlen(fts_name) */ 81 82 ino_t fts_ino; /* inode */ 83 dev_t fts_dev; /* device */ 84 nlink_t fts_nlink; /* link count */ 85 86#define FTS_ROOTPARENTLEVEL -1 87#define FTS_ROOTLEVEL 0 88 long fts_level; /* depth (-1 to N) */ 89 90#define FTS_D 1 /* preorder directory */ 91#define FTS_DC 2 /* directory that causes cycles */ 92#define FTS_DEFAULT 3 /* none of the above */ 93#define FTS_DNR 4 /* unreadable directory */ 94#define FTS_DOT 5 /* dot or dot-dot */ 95#define FTS_DP 6 /* postorder directory */ 96#define FTS_ERR 7 /* error; errno is set */ 97#define FTS_F 8 /* regular file */ 98#define FTS_INIT 9 /* initialized only */ 99#define FTS_NS 10 /* stat(2) failed */ 100#define FTS_NSOK 11 /* no stat(2) requested */ 101#define FTS_SL 12 /* symbolic link */ 102#define FTS_SLNONE 13 /* symbolic link without target */ 103#define FTS_W 14 /* whiteout object */ 104 int fts_info; /* user status for FTSENT structure */ 105 106#define FTS_DONTCHDIR 0x01 /* don't chdir .. to the parent */ 107#define FTS_SYMFOLLOW 0x02 /* followed a symlink to get here */ 108#define FTS_ISW 0x04 /* this is a whiteout object */ 109 unsigned fts_flags; /* private flags for FTSENT structure */ 110 111#define FTS_AGAIN 1 /* read node again */ 112#define FTS_FOLLOW 2 /* follow symbolic link */ 113#define FTS_NOINSTR 3 /* no instructions */ 114#define FTS_SKIP 4 /* discard node */ 115 int fts_instr; /* fts_set() instructions */ 116 117 struct stat *fts_statp; /* stat(2) information */ 118 char *fts_name; /* file name */ 119 FTS *fts_fts; /* back pointer to main FTS */ 120} FTSENT; 121 122#include <sys/cdefs.h> 123 124__BEGIN_DECLS 125FTSENT *fts_children(FTS *, int); 126int fts_close(FTS *); 127void *fts_get_clientptr(FTS *); 128#define fts_get_clientptr(fts) ((fts)->fts_clientptr) 129FTS *fts_get_stream(FTSENT *); 130#define fts_get_stream(ftsent) ((ftsent)->fts_fts) 131FTS *fts_open(char * const *, int, 132 int (*)(const FTSENT * const *, const FTSENT * const *)); 133FTSENT *fts_read(FTS *); 134int fts_set(FTS *, FTSENT *, int); 135void fts_set_clientptr(FTS *, void *); 136__END_DECLS 137 138#endif /* !_FTS_H_ */ 139