BSD 4_3_Reno release

[unix-history] / usr / src / include / fts.h

/*
* Copyright (c) 1989 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement:  ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
*      @(#)fts.h       5.8 (Berkeley) 7/1/90
*/

typedef struct fts {
       struct ftsent *fts_cur;         /* current node */
       struct ftsent *fts_child;       /* linked list of children */
       struct ftsent *fts_savelink;    /* saved link if node had a cycle */
       struct ftsent **fts_array;      /* sort array */
       dev_t sdev;                     /* starting device # */
       char *fts_path;                 /* path for this descent */
       int fts_sd;                     /* starting directory */
       int fts_pathlen;                /* sizeof(path) */
       int fts_nitems;                 /* elements in the sort array */
       int (*fts_compar)();            /* compare function */
#define FTS__STOP       0x001           /* private: unrecoverable error */
#define FTS_LOGICAL     0x002           /* user: use stat(2) */
#define FTS_NOCHDIR     0x004           /* user: don't use chdir(2) */
#define FTS_NOSTAT      0x008           /* user: don't require stat info */
#define FTS_PHYSICAL    0x010           /* user: use lstat(2) */
#define FTS_SEEDOT      0x020           /* user: return dot and dot-dot */
#define FTS_XDEV        0x040           /* user: don't cross devices */
       int fts_options;                /* openfts() options */
} FTS;

typedef struct ftsent {
       struct ftsent *fts_parent;      /* parent directory */
       struct ftsent *fts_link;        /* next/cycle node */
       union {
               long number;            /* local numeric value */
               void *pointer;          /* local address value */
       } fts_local;
       char *fts_accpath;              /* path from current directory */
       char *fts_path;                 /* path from starting directory */
       short fts_pathlen;              /* strlen(path) */
       short fts_namelen;              /* strlen(name) */
       short fts_level;                /* depth (-1 to N) */
#define FTS_D            1              /* preorder directory */
#define FTS_DC           2              /* directory that causes cycles */
#define FTS_DNR          3              /* unreadable directory */
#define FTS_DNX          4              /* unsearchable directory */
#define FTS_DP           5              /* postorder directory */
#define FTS_ERR          6              /* error; errno is set */
#define FTS_F            7              /* regular file */
#define FTS_NS           8              /* no stat(2) information */
#define FTS_SL           9              /* symbolic link */
#define FTS_SLNONE      10              /* symbolic link without target */
#define FTS_DEFAULT     11              /* none of the above */
       u_short fts_info;               /* file information */
#define FTS_AGAIN        1              /* user: read node again */
#define FTS_SKIP         2              /* user: discard node */
#define FTS_FOLLOW       3              /* user: follow symbolic link */
       short fts_instr;                /* setfts() instructions */
       struct stat fts_statb;          /* stat(2) information */
       char fts_name[1];               /* file name */
} FTSENT;

#if __STDC__ || c_plusplus
extern FTS *ftsopen(const char **, int, int (*)(const FTSENT *, const FTSENT *));
extern FTSENT *ftsread(FTS *);
extern FTSENT *ftschildren(FTS *);
extern int ftsset(FTS *, FTSENT *, int);
extern int ftsclose(FTS *);
#else
extern FTS *ftsopen();
extern FTSENT *ftschildren(), *ftsread();
extern int ftsclose(), ftsset();
#endif