fts.h 5.2 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131
  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. * 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.
  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. */
  31. #ifndef _FTS_H
  32. #define _FTS_H 1
  33. #include <features.h>
  34. #include <sys/types.h>
  35. /* The fts interface is incompatible with the LFS interface which
  36. transparently uses the 64-bit file access functions. */
  37. #ifdef __USE_FILE_OFFSET64
  38. # error "<fts.h> cannot be used with -D_FILE_OFFSET_BITS==64"
  39. #endif
  40. typedef 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) (const void *, const void *); /* compare fn */
  50. #define FTS_COMFOLLOW 0x0001 /* follow command line symlinks */
  51. #define FTS_LOGICAL 0x0002 /* logical walk */
  52. #define FTS_NOCHDIR 0x0004 /* don't change directories */
  53. #define FTS_NOSTAT 0x0008 /* don't get stat info */
  54. #define FTS_PHYSICAL 0x0010 /* physical walk */
  55. #define FTS_SEEDOT 0x0020 /* return dot and dot-dot */
  56. #define FTS_XDEV 0x0040 /* don't cross devices */
  57. #define FTS_WHITEOUT 0x0080 /* return whiteout information */
  58. #define FTS_OPTIONMASK 0x00ff /* valid user option mask */
  59. #define FTS_NAMEONLY 0x0100 /* (private) child names only */
  60. #define FTS_STOP 0x0200 /* (private) unrecoverable error */
  61. int fts_options; /* fts_open options, global flags */
  62. } FTS;
  63. typedef struct _ftsent {
  64. struct _ftsent *fts_cycle; /* cycle node */
  65. struct _ftsent *fts_parent; /* parent directory */
  66. struct _ftsent *fts_link; /* next file in directory */
  67. long fts_number; /* local numeric value */
  68. void *fts_pointer; /* local address value */
  69. char *fts_accpath; /* access path */
  70. char *fts_path; /* root path */
  71. int fts_errno; /* errno for this node */
  72. int fts_symfd; /* fd for symlink */
  73. u_short fts_pathlen; /* strlen(fts_path) */
  74. u_short fts_namelen; /* strlen(fts_name) */
  75. ino_t fts_ino; /* inode */
  76. dev_t fts_dev; /* device */
  77. nlink_t fts_nlink; /* link count */
  78. #define FTS_ROOTPARENTLEVEL -1
  79. #define FTS_ROOTLEVEL 0
  80. short fts_level; /* depth (-1 to N) */
  81. #define FTS_D 1 /* preorder directory */
  82. #define FTS_DC 2 /* directory that causes cycles */
  83. #define FTS_DEFAULT 3 /* none of the above */
  84. #define FTS_DNR 4 /* unreadable directory */
  85. #define FTS_DOT 5 /* dot or dot-dot */
  86. #define FTS_DP 6 /* postorder directory */
  87. #define FTS_ERR 7 /* error; errno is set */
  88. #define FTS_F 8 /* regular file */
  89. #define FTS_INIT 9 /* initialized only */
  90. #define FTS_NS 10 /* stat(2) failed */
  91. #define FTS_NSOK 11 /* no stat(2) requested */
  92. #define FTS_SL 12 /* symbolic link */
  93. #define FTS_SLNONE 13 /* symbolic link without target */
  94. #define FTS_W 14 /* whiteout object */
  95. u_short fts_info; /* user flags for FTSENT structure */
  96. #define FTS_DONTCHDIR 0x01 /* don't chdir .. to the parent */
  97. #define FTS_SYMFOLLOW 0x02 /* followed a symlink to get here */
  98. u_short fts_flags; /* private flags for FTSENT structure */
  99. #define FTS_AGAIN 1 /* read node again */
  100. #define FTS_FOLLOW 2 /* follow symbolic link */
  101. #define FTS_NOINSTR 3 /* no instructions */
  102. #define FTS_SKIP 4 /* discard node */
  103. u_short fts_instr; /* fts_set() instructions */
  104. struct stat *fts_statp; /* stat(2) information */
  105. char fts_name[1]; /* file name */
  106. } FTSENT;
  107. __BEGIN_DECLS
  108. FTSENT *fts_children (FTS *, int);
  109. int fts_close (FTS *);
  110. FTS *fts_open (char * const *, int,
  111. int (*)(const FTSENT **, const FTSENT **));
  112. FTSENT *fts_read (FTS *);
  113. int fts_set (FTS *, FTSENT *, int) __THROW;
  114. __END_DECLS
  115. #endif /* fts.h */