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PROLOG | NAME | SYNOPSIS | DESCRIPTION | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
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ftw.h(0P) POSIX Programmer's Manual ftw.h(0P)
This manual page is part of the POSIX Programmer's Manual. The
Linux implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
ftw.h — file tree traversal
#include <ftw.h>
The <ftw.h> header shall define the FTW structure, which shall
include at least the following members:
int base
int level
The <ftw.h> header shall define the following symbolic constants
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 Non-directory 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 the following symbolic constants
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.
None.
None.
None.
sys_stat.h(0p)
The System Interfaces volume of POSIX.1‐2017, ftw(3p), nftw(3p)
Portions of this text are reprinted and reproduced in electronic
form from IEEE Std 1003.1-2017, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The
Open Group Base Specifications Issue 7, 2018 Edition, Copyright
(C) 2018 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 .
Any typographical or formatting errors that appear in this page
are most likely to have been introduced during the conversion of
the source files to man page format. To report such errors, see
https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2017 ftw.h(0P)
Pages that refer to this page: ftw(3p), nftw(3p)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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