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001: /*
002:  * Copyright (c) 1989, 1993
003:  *      The Regents of the University of California.  All rights reserved.
004:  *
005:  * Redistribution and use in source and binary forms, with or without
006:  * modification, are permitted provided that the following conditions
007:  * are met:
008:  * 1. Redistributions of source code must retain the above copyright
009:  *    notice, this list of conditions and the following disclaimer.
010:  * 2. Redistributions in binary form must reproduce the above copyright
011:  *    notice, this list of conditions and the following disclaimer in the
012:  *    documentation and/or other materials provided with the distribution.
013:  * 4. Neither the name of the University nor the names of its contributors
014:  *    may be used to endorse or promote products derived from this software
015:  *    without specific prior written permission.
016:  *
017:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
018:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
019:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
020:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
021:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
022:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
023:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
024:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
025:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
026:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
027:  * SUCH DAMAGE.
028:  *
029:  *      @(#)fts.h       8.3 (Berkeley) 8/14/94
030:  */
031: 
032: #ifndef _FTS_H
033: #define _FTS_H 1
034: 
035: #include <features.h>
036: #include <sys/types.h>
037: 
038: /* The fts interface is incompatible with the LFS interface which
039:    transparently uses the 64-bit file access functions.  */
040: #ifdef __USE_FILE_OFFSET64
041: # error "<fts.h> cannot be used with -D_FILE_OFFSET_BITS==64"
042: #endif
043: 
044: 
045: typedef struct {
046:         struct _ftsent *fts_cur;        /* current node */
047:         struct _ftsent *fts_child;      /* linked list of children */
048:         struct _ftsent **fts_array;     /* sort array */
049:         dev_t fts_dev;                  /* starting device # */
050:         char *fts_path;                 /* path for this descent */
051:         int fts_rfd;                    /* fd for root */
052:         int fts_pathlen;                /* sizeof(path) */
053:         int fts_nitems;                 /* elements in the sort array */
054:         int (*fts_compar) (const void *, const void *); /* compare fn */
055: 
056: #define FTS_COMFOLLOW   0x0001          /* follow command line symlinks */
057: #define FTS_LOGICAL     0x0002          /* logical walk */
058: #define FTS_NOCHDIR     0x0004          /* don't change directories */
059: #define FTS_NOSTAT      0x0008          /* don't get stat info */
060: #define FTS_PHYSICAL    0x0010          /* physical walk */
061: #define FTS_SEEDOT      0x0020          /* return dot and dot-dot */
062: #define FTS_XDEV        0x0040          /* don't cross devices */
063: #define FTS_WHITEOUT    0x0080          /* return whiteout information */
064: #define FTS_OPTIONMASK  0x00ff          /* valid user option mask */
065: 
066: #define FTS_NAMEONLY    0x0100          /* (private) child names only */
067: #define FTS_STOP        0x0200          /* (private) unrecoverable error */
068:         int fts_options;                /* fts_open options, global flags */
069: } FTS;
070: 
071: typedef struct _ftsent {
072:         struct _ftsent *fts_cycle;      /* cycle node */
073:         struct _ftsent *fts_parent;     /* parent directory */
074:         struct _ftsent *fts_link;       /* next file in directory */
075:         long fts_number;                /* local numeric value */
076:         void *fts_pointer;              /* local address value */
077:         char *fts_accpath;              /* access path */
078:         char *fts_path;                 /* root path */
079:         int fts_errno;                  /* errno for this node */
080:         int fts_symfd;                  /* fd for symlink */
081:         u_short fts_pathlen;            /* strlen(fts_path) */
082:         u_short fts_namelen;            /* strlen(fts_name) */
083: 
084:         ino_t fts_ino;                  /* inode */
085:         dev_t fts_dev;                  /* device */
086:         nlink_t fts_nlink;              /* link count */
087: 
088: #define FTS_ROOTPARENTLEVEL     -1
089: #define FTS_ROOTLEVEL            0
090:         short fts_level;                /* depth (-1 to N) */
091: 
092: #define FTS_D            1              /* preorder directory */
093: #define FTS_DC           2              /* directory that causes cycles */
094: #define FTS_DEFAULT      3              /* none of the above */
095: #define FTS_DNR          4              /* unreadable directory */
096: #define FTS_DOT          5              /* dot or dot-dot */
097: #define FTS_DP           6              /* postorder directory */
098: #define FTS_ERR          7              /* error; errno is set */
099: #define FTS_F            8              /* regular file */
100: #define FTS_INIT         9              /* initialized only */
101: #define FTS_NS          10              /* stat(2) failed */
102: #define FTS_NSOK        11              /* no stat(2) requested */
103: #define FTS_SL          12              /* symbolic link */
104: #define FTS_SLNONE      13              /* symbolic link without target */
105: #define FTS_W           14              /* whiteout object */
106:         u_short fts_info;               /* user flags for FTSENT structure */
107: 
108: #define FTS_DONTCHDIR    0x01           /* don't chdir .. to the parent */
109: #define FTS_SYMFOLLOW    0x02           /* followed a symlink to get here */
110:         u_short fts_flags;              /* private flags for FTSENT structure */
111: 
112: #define FTS_AGAIN        1              /* read node again */
113: #define FTS_FOLLOW       2              /* follow symbolic link */
114: #define FTS_NOINSTR      3              /* no instructions */
115: #define FTS_SKIP         4              /* discard node */
116:         u_short fts_instr;              /* fts_set() instructions */
117: 
118:         struct stat *fts_statp;         /* stat(2) information */
119:         char fts_name[1];               /* file name */
120: } FTSENT;
121: 
122: __BEGIN_DECLS
123: FTSENT  *fts_children (FTS *, int);
124: int      fts_close (FTS *);
125: FTS     *fts_open (char * const *, int,
126:                    int (*)(const FTSENT **, const FTSENT **));
127: FTSENT  *fts_read (FTS *);
128: int      fts_set (FTS *, FTSENT *, int) __THROW;
129: __END_DECLS
130: 
131: #endif /* fts.h */
132: 

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