xref: /freebsd/lib/libc/gen/fts-compat.h (revision 6dcefcac2b043be030851e03a721607b414b666b)
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. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  *	@(#)fts.h	8.3 (Berkeley) 8/14/94
30  * $FreeBSD$
31  */
32 
33 #ifndef	_FTS_H_
34 #define	_FTS_H_
35 
36 typedef struct {
37 	struct _ftsent *fts_cur;	/* current node */
38 	struct _ftsent *fts_child;	/* linked list of children */
39 	struct _ftsent **fts_array;	/* sort array */
40 	dev_t fts_dev;			/* starting device # */
41 	char *fts_path;			/* path for this descent */
42 	int fts_rfd;			/* fd for root */
43 	int fts_pathlen;		/* sizeof(path) */
44 	int fts_nitems;			/* elements in the sort array */
45 	int (*fts_compar)		/* compare function */
46 	    (const struct _ftsent * const *, const struct _ftsent * const *);
47 
48 #define	FTS_COMFOLLOW	0x001		/* follow command line symlinks */
49 #define	FTS_LOGICAL	0x002		/* logical walk */
50 #define	FTS_NOCHDIR	0x004		/* don't change directories */
51 #define	FTS_NOSTAT	0x008		/* don't get stat info */
52 #define	FTS_PHYSICAL	0x010		/* physical walk */
53 #define	FTS_SEEDOT	0x020		/* return dot and dot-dot */
54 #define	FTS_XDEV	0x040		/* don't cross devices */
55 #define	FTS_WHITEOUT	0x080		/* return whiteout information */
56 #define	FTS_OPTIONMASK	0x0ff		/* valid user option mask */
57 
58 #define	FTS_NAMEONLY	0x100		/* (private) child names only */
59 #define	FTS_STOP	0x200		/* (private) unrecoverable error */
60 	int fts_options;		/* fts_open options, global flags */
61 	void *fts_clientptr;		/* thunk for sort function */
62 } FTS;
63 
64 typedef struct _ftsent {
65 	struct _ftsent *fts_cycle;	/* cycle node */
66 	struct _ftsent *fts_parent;	/* parent directory */
67 	struct _ftsent *fts_link;	/* next file in directory */
68 	union {
69 		struct {
70 			long __fts_number;	/* local numeric value */
71 			void *__fts_pointer;	/* local address value */
72 		} __struct_ftsent;
73 		int64_t __fts_bignum;
74 	} __union_ftsent;
75 #define	fts_number	__union_ftsent.__struct_ftsent.__fts_number
76 #define	fts_pointer	__union_ftsent.__struct_ftsent.__fts_pointer
77 #define	fts_bignum	__union_ftsent.__fts_bignum
78 	char *fts_accpath;		/* access path */
79 	char *fts_path;			/* root path */
80 	int fts_errno;			/* errno for this node */
81 	int fts_symfd;			/* fd for symlink */
82 	u_short fts_pathlen;		/* strlen(fts_path) */
83 	u_short fts_namelen;		/* strlen(fts_name) */
84 
85 	ino_t fts_ino;			/* inode */
86 	dev_t fts_dev;			/* device */
87 	nlink_t fts_nlink;		/* link count */
88 
89 #define	FTS_ROOTPARENTLEVEL	-1
90 #define	FTS_ROOTLEVEL		 0
91 	short fts_level;		/* depth (-1 to N) */
92 
93 #define	FTS_D		 1		/* preorder directory */
94 #define	FTS_DC		 2		/* directory that causes cycles */
95 #define	FTS_DEFAULT	 3		/* none of the above */
96 #define	FTS_DNR		 4		/* unreadable directory */
97 #define	FTS_DOT		 5		/* dot or dot-dot */
98 #define	FTS_DP		 6		/* postorder directory */
99 #define	FTS_ERR		 7		/* error; errno is set */
100 #define	FTS_F		 8		/* regular file */
101 #define	FTS_INIT	 9		/* initialized only */
102 #define	FTS_NS		10		/* stat(2) failed */
103 #define	FTS_NSOK	11		/* no stat(2) requested */
104 #define	FTS_SL		12		/* symbolic link */
105 #define	FTS_SLNONE	13		/* symbolic link without target */
106 #define	FTS_W		14		/* whiteout object */
107 	u_short fts_info;		/* user flags for FTSENT structure */
108 
109 #define	FTS_DONTCHDIR	 0x01		/* don't chdir .. to the parent */
110 #define	FTS_SYMFOLLOW	 0x02		/* followed a symlink to get here */
111 #define	FTS_ISW		 0x04		/* this is a whiteout object */
112 	u_short fts_flags;		/* private flags for FTSENT structure */
113 
114 #define	FTS_AGAIN	 1		/* read node again */
115 #define	FTS_FOLLOW	 2		/* follow symbolic link */
116 #define	FTS_NOINSTR	 3		/* no instructions */
117 #define	FTS_SKIP	 4		/* discard node */
118 	u_short fts_instr;		/* fts_set() instructions */
119 
120 	struct stat *fts_statp;		/* stat(2) information */
121 	char *fts_name;			/* file name */
122 	FTS *fts_fts;			/* back pointer to main FTS */
123 } FTSENT;
124 
125 #define	 fts_get_clientptr(fts)	((fts)->fts_clientptr)
126 #define	 fts_get_stream(ftsent)	((ftsent)->fts_fts)
127 
128 #endif /* !_FTS_H_ */
129