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Linux 2.6 - man page for ftw.h (linux section 7posix)

<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 orig-
       inal 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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