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man pages section 3: Library Interfaces and Headers

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Updated: Thursday, June 13, 2019
 
 

ftw.h(3HEAD)

Name

ftw.h, ftw - file tree traversal

Synopsis

#include <ftw.h>

Description

The <ftw.h> header defines the FTW structure that includes the following members:

int base
int level

The <ftw.h> header defines 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() (see ftw(3C)):

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 non-existent file

The <ftw.h> header defines 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 <ftw.h> header defines 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 might also make visible all symbols from <sys/stat.h>.

Attributes

See attributes(7) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Interface Stability
Committed
Standard

See Also

ftw(3C), stat.h(3HEAD), attributes(7), standards(7)