source: trunk/minix/include/fts.h@ 12

Last change on this file since 12 was 9, checked in by Mattia Monga, 14 years ago

Minix 3.1.2a
File size: 5.8 KB
RevLine 
[9]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: src/include/fts.h,v 1.11 2005/01/07 00:06:20 pjd Exp $
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 int fts_pathlen; /* sizeof(path) */
48 int 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_OPTIONMASK 0x0ff /* valid user option mask */
60
61#define FTS_NAMEONLY 0x100 /* (private) child names only */
62#define FTS_STOP 0x200 /* (private) unrecoverable error */
63 int fts_options; /* fts_open options, global flags */
64 void *fts_clientptr; /* thunk for sort function */
65} FTS;
66
67typedef struct _ftsent {
68 struct _ftsent *fts_cycle; /* cycle node */
69 struct _ftsent *fts_parent; /* parent directory */
70 struct _ftsent *fts_link; /* next file in directory */
71 union {
72 struct {
73 long __fts_number; /* local numeric value */
74 void *__fts_pointer; /* local address value */
75 } __struct_ftsent;
76#if 0
77 int64_t __fts_bignum;
78#endif
79 } __union_ftsent;
80#define fts_number __union_ftsent.__struct_ftsent.__fts_number
81#define fts_pointer __union_ftsent.__struct_ftsent.__fts_pointer
82#define fts_bignum __union_ftsent.__fts_bignum
83 char *fts_accpath; /* access path */
84 char *fts_path; /* root path */
85 int fts_errno; /* errno for this node */
86 int fts_symfd; /* fd for symlink */
87 u_short fts_pathlen; /* strlen(fts_path) */
88 u_short fts_namelen; /* strlen(fts_name) */
89
90 ino_t fts_ino; /* inode */
91 dev_t fts_dev; /* device */
92 nlink_t fts_nlink; /* link count */
93
94#define FTS_ROOTPARENTLEVEL -1
95#define FTS_ROOTLEVEL 0
96 short fts_level; /* depth (-1 to N) */
97
98#define FTS_D 1 /* preorder directory */
99#define FTS_DC 2 /* directory that causes cycles */
100#define FTS_DEFAULT 3 /* none of the above */
101#define FTS_DNR 4 /* unreadable directory */
102#define FTS_DOT 5 /* dot or dot-dot */
103#define FTS_DP 6 /* postorder directory */
104#define FTS_ERR 7 /* error; errno is set */
105#define FTS_F 8 /* regular file */
106#define FTS_INIT 9 /* initialized only */
107#define FTS_NS 10 /* stat(2) failed */
108#define FTS_NSOK 11 /* no stat(2) requested */
109#define FTS_SL 12 /* symbolic link */
110#define FTS_SLNONE 13 /* symbolic link without target */
111#define FTS_W 14 /* whiteout object */
112 u_short fts_info; /* user flags for FTSENT structure */
113
114#define FTS_DONTCHDIR 0x01 /* don't chdir .. to the parent */
115#define FTS_SYMFOLLOW 0x02 /* followed a symlink to get here */
116#define FTS_ISW 0x04 /* this is a whiteout object */
117 u_short fts_flags; /* private flags for FTSENT structure */
118
119#define FTS_AGAIN 1 /* read node again */
120#define FTS_FOLLOW 2 /* follow symbolic link */
121#define FTS_NOINSTR 3 /* no instructions */
122#define FTS_SKIP 4 /* discard node */
123 u_short fts_instr; /* fts_set() instructions */
124
125 struct stat *fts_statp; /* stat(2) information */
126 char *fts_name; /* file name */
127 FTS *fts_fts; /* back pointer to main FTS */
128} FTSENT;
129
130FTSENT *fts_children(FTS *, int);
131int fts_close(FTS *);
132void *fts_get_clientptr(FTS *);
133#define fts_get_clientptr(fts) ((fts)->fts_clientptr)
134FTS *fts_get_stream(FTSENT *);
135#define fts_get_stream(ftsent) ((ftsent)->fts_fts)
136FTS *fts_open(char * const *, int,
137 int (*)(const FTSENT * const *, const FTSENT * const *));
138FTSENT *fts_read(FTS *);
139int fts_set(FTS *, FTSENT *, int);
140void fts_set_clientptr(FTS *, void *);
141
142#endif /* !_FTS_H_ */
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