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stat, even if the user isn't interested in the results.
This prevents a core dump in cycle_check when FTS_NOSTAT is set.
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[HAVE_INTTYPES_H]: Include <inttypes.h>.
(tdestroy, tfind, tsearch): Remove definitions.
(struct Active_dir): Rename from `known_object'.
(AD_compare, AD_hash): New functions.
(enter_dir, leave_dir): Rewrite to manipulate a hash table
rather than a tree.
(fts_open): Initialize hash table or cycle_state buffer.
(free_node): Remove function.
(find_matching_ancestor): Renamed/rewritten from look_up_active_dir.
(fts_cross_check): Adapt to use new data structure.
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Add some framework (compiled out by default) to test it.
(Dprintf, ENTER_DIR, LEAVE_DIR): Define.
(add_object): Remove function. Rewritten as...
(enter_dir): New function.
(leave_dir, free_node): New functions.
(fts_read): Ensure that we call ENTER_DIR or LEAVE_DIR,
as appropriate, before returning.
(look_up_active_dir, fts_cross_check) [FTS_DEBUG]: New functions.
(fts_stat): Don't perform the cycle check here.
Now it's done via enter_dir.
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encountered in a traversal fit in an `unsigned short',
and fix some portability bugs (don't depend on gcc).
Include "fts_.h", not <fts.h>.
(ALIGNBYTES) [!(__GNUC__ >= 2)]: Add a definition that works with
compilers that don't have __alignof__.
(MAX): Use a definition that doesn't depend on gcc.
(fts_build): Make `len' and `maxlen' be of type size_t, not int.
Test for overflow in a less type-dependent manner.
Test HAVE_STRUCT_DIRENT_D_TYPE, rather than
defined DT_DIR && defined _DIRENT_HAVE_D_TYPE.
(fts_palloc): Test for overflow in a less type-dependent manner.
(fts_safe_changedir): Use stat, not stat64.
Use fstat, not __fxstat64(_STAT_VER.
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each sequence of spaces before a TAB character.
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member to NULL before returning. From NetBSD.
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before returning. From NetBSD.
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(struct known_object): Define.
(object_compare, add_object, find_object): New functions, like
those in ftw.c.
(fts_open): Initialize new member.
(fts_close): Free memory allocated for new member.
(fts_stat): Detect a cycle in O(logN) time per directory processed.
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Conditionalize inclusion of <sys/param.h>.
Conditionalize inclusion of <include/sys/stat.h> vs <sys/stat.h>.
Include autoconf-recommended block of dirent/NAMELEN-related
definitions and includes. Use NAMLEN throughout, rather than
_D_EXACT_NAMLEN.
[_LIBC] (close, closedir, fchdir, open, opendir): Define.
[_LIBC] (readdir, tdestroy, tfind, tsearch): Define.
Remove `__' prefix from all uses of the above. This will help
to merge *BSD changes.
[!_LIBC] (internal_function): Define.
[! _LIBC && ! LSTAT_FOLLOWS_SLASHED_SYMLINK]: Define lstat.
(__set_errno): Define if not already defined.
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(fts_read): If fts_safe_changedir fails because it is not
able to chdir into a subdirectory, then inform the caller.
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