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<ftw.h>(P)		   POSIX Programmer's Manual		    <ftw.h>(P)

NAME
       ftw.h - file tree traversal

SYNOPSIS
       #include <ftw.h>

DESCRIPTION
       The  <ftw.h>  header  shall  define  the FTW structure that includes at
       least the following members:

	      int  base
	      int  level

       The <ftw.h> header shall define macros for use as values of  the	 third
       argument	 to  the  application-supplied	function that is passed as the
       second argument to ftw() and nftw():

       FTW_F  File.

       FTW_D  Directory.

       FTW_DNR
	      Directory without read permission.

       FTW_DP Directory with subdirectories visited.

       FTW_NS Unknown type; stat() failed.

       FTW_SL Symbolic link.

       FTW_SLN
	      Symbolic link that names a nonexistent file.

       The <ftw.h> header shall define macros for use as values of the	fourth
       argument to nftw():

       FTW_PHYS
	      Physical walk, does not follow symbolic links. Otherwise, nftw()
	      follows links but does not  walk	down  any  path	 that  crosses
	      itself.

       FTW_MOUNT
	      The walk does not cross a mount point.

       FTW_DEPTH
	      All subdirectories are visited before the directory itself.

       FTW_CHDIR
	      The walk changes to each directory before reading it.

       The following shall be declared as functions and may also be defined as
       macros. Function prototypes shall be provided.

	      int ftw(const char *, int (*)(const char *, const struct stat *,
		  int), int);
	      int nftw(const char *, int (*)(const char *, const struct stat *,
		  int, struct FTW*), int, int);

       The <ftw.h> header shall define the stat	 structure  and	 the  symbolic
       names  for  st_mode  and	 the  file  type  test	macros as described in
       <sys/stat.h> .

       Inclusion of the <ftw.h> header may also make visible all symbols  from
       <sys/stat.h>.

       The following sections are informative.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       <sys/stat.h>  ,	the  System Interfaces volume of IEEE Std 1003.1-2001,
       ftw(), nftw()

COPYRIGHT
       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),	The  Open  Group  Base
       Specifications  Issue  6,  Copyright  (C) 2001-2003 by the Institute of
       Electrical and Electronics Engineers, Inc and The Open  Group.  In  the
       event of any discrepancy between this version and the original IEEE and
       The Open Group Standard, the original IEEE and The Open Group  Standard
       is  the	referee document. The original Standard can be obtained online
       at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group		     2003			    <ftw.h>(P)
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