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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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This page was generated on Tue Feb 13 02:23:37 GMT 2007
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