2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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
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12 * documentation and/or other materials provided with the distribution.
13 * 4. 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.
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20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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29 * @(#)fts.h 8.3 (Berkeley) 8/14/94
35 #include <rpm/rpmutil.h>
37 #if defined(__GLIBC__)
43 # define __BEGIN_DECLS extern "C" {
44 # define __END_DECLS }
46 # define __BEGIN_DECLS
51 # define _D_EXACT_NAMLEN(d) ((d)->d_namlen)
52 # define _INCLUDE_POSIX_SOURCE
53 # define _LARGEFILE64_SOURCE
57 # define _D_EXACT_NAMLEN(d) ((d)->d_reclen)
60 #if defined(__APPLE__)
61 # define _D_EXACT_NAMLEN(d) (strlen((d)->d_name))
66 #include <sys/types.h>
72 struct _ftsent *fts_cur; /*!< current node */
73 struct _ftsent *fts_child; /*!< linked list of children */
74 struct _ftsent **fts_array; /*!< sort array */
75 dev_t fts_dev; /*!< starting device # */
76 char *fts_path; /*!< path for this descent */
77 int fts_rfd; /*!< fd for root */
78 int fts_pathlen; /*!< sizeof(path) */
79 int fts_nitems; /*!< elements in the sort array */
80 int (*fts_compar) (const void *, const void *); /*!< compare fn */
82 DIR * (*fts_opendir) (const char * path);
83 struct dirent * (*fts_readdir) (DIR * dir);
84 int (*fts_closedir) (DIR * dir);
85 int (*fts_stat) (const char * path, struct stat * st);
86 int (*fts_lstat) (const char * path, struct stat * st);
88 #define FTS_COMFOLLOW 0x0001 /* follow command line symlinks */
89 #define FTS_LOGICAL 0x0002 /* logical walk */
90 #define FTS_NOCHDIR 0x0004 /* don't change directories */
91 #define FTS_NOSTAT 0x0008 /* don't get stat info */
92 #define FTS_PHYSICAL 0x0010 /* physical walk */
93 #define FTS_SEEDOT 0x0020 /* return dot and dot-dot */
94 #define FTS_XDEV 0x0040 /* don't cross devices */
95 #define FTS_WHITEOUT 0x0080 /* return whiteout information */
96 #define FTS_OPTIONMASK 0x00ff /* valid user option mask */
98 #define FTS_NAMEONLY 0x0100 /* (private) child names only */
99 #define FTS_STOP 0x0200 /* (private) unrecoverable error */
100 int fts_options; /*!< fts_open options, global flags */
103 typedef struct _ftsent {
104 struct _ftsent *fts_cycle; /*!< cycle node */
105 struct _ftsent *fts_parent; /*!< parent directory */
106 struct _ftsent *fts_link; /*!< next file in directory */
107 long fts_number; /*!< local numeric value */
108 void *fts_pointer; /*!< local address value */
109 char *fts_accpath; /*!< access path */
110 char *fts_path; /*!< root path */
111 int fts_errno; /*!< errno for this node */
112 int fts_symfd; /*!< fd for symlink */
113 uint16_t fts_pathlen; /*!< strlen(fts_path) */
114 uint16_t fts_namelen; /*!< strlen(fts_name) */
116 ino_t fts_ino; /*!< inode */
117 dev_t fts_dev; /*!< device */
118 nlink_t fts_nlink; /*!< link count */
120 #define FTS_ROOTPARENTLEVEL -1
121 #define FTS_ROOTLEVEL 0
122 short fts_level; /*!< depth (-1 to N) */
124 #define FTS_D 1 /* preorder directory */
125 #define FTS_DC 2 /* directory that causes cycles */
126 #define FTS_DEFAULT 3 /* none of the above */
127 #define FTS_DNR 4 /* unreadable directory */
128 #define FTS_DOT 5 /* dot or dot-dot */
129 #define FTS_DP 6 /* postorder directory */
130 #define FTS_ERR 7 /* error; errno is set */
131 #define FTS_F 8 /* regular file */
132 #define FTS_INIT 9 /* initialized only */
133 #define FTS_NS 10 /* stat(2) failed */
134 #define FTS_NSOK 11 /* no stat(2) requested */
135 #define FTS_SL 12 /* symbolic link */
136 #define FTS_SLNONE 13 /* symbolic link without target */
137 #define FTS_W 14 /* whiteout object */
138 uint16_t fts_info; /*!< user flags for FTSENT structure */
140 #define FTS_DONTCHDIR 0x01 /* don't chdir .. to the parent */
141 #define FTS_SYMFOLLOW 0x02 /* followed a symlink to get here */
142 uint16_t fts_flags; /*!< private flags for FTSENT structure */
144 #define FTS_AGAIN 1 /* read node again */
145 #define FTS_FOLLOW 2 /* follow symbolic link */
146 #define FTS_NOINSTR 3 /* no instructions */
147 #define FTS_SKIP 4 /* discard node */
148 uint16_t fts_instr; /*!< fts_set() instructions */
150 struct stat *fts_statp; /*!< stat(2) information */
151 char fts_name[1]; /*!< file name */
157 * Return list of children of the current node.
158 * @param sp file hierarchy state
160 * @return file set member
163 FTSENT *Fts_children (FTS * sp, int instr) __THROW
167 * Destroy a file hierarchy traversal handle.
168 * @param sp file hierarchy state
169 * @return 0 on sucess, -1 on error
172 int Fts_close (FTS * sp) __THROW
176 * Create a handle for file hierarchy traversal.
177 * @param argv paths that compose a logical file hierarchy
178 * @param options traversal options
179 * @param compar traversal ordering (or NULL)
180 * @return file hierarchy state (or NULL on error)
183 FTS *Fts_open (char * const * argv, int options,
184 int (*compar) (const FTSENT **, const FTSENT **)) __THROW
188 * Return next node in the file hierarchy traversal.
189 * @param sp file hierarchy state
190 * @return file set member
193 FTSENT *Fts_read (FTS * sp) __THROW
197 * Modify the traversal for a file set member.
198 * @param sp file hierarchy state
199 * @param p file set member
200 * @param instr new disposition for file set member
201 * @return 0 on sucess, -1 on error
204 int Fts_set (FTS * sp, FTSENT * p, int instr) __THROW