FCHOWNAT
Section: Linux Programmer's Manual (2)
Updated: 2009-12-13
NAME
fchownat - change ownership of a file relative to a directory file descriptor
SYNOPSIS
#include <fcntl.h> /* Definition of AT_* constants */
#include <unistd.h>
int fchownat(int dirfd, const char *pathname,
uid_t owner, gid_t group, int flags);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
fchownat():
-
- Since glibc 2.10:
-
_XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
- Before glibc 2.10:
-
_ATFILE_SOURCE
DESCRIPTION
The
fchownat()
system call operates in exactly the same way as
chown(2),
except for the differences described in this manual page.
If the pathname given in
pathname
is relative, then it is interpreted relative to the directory
referred to by the file descriptor
dirfd
(rather than relative to the current working directory of
the calling process, as is done by
chown(2)
for a relative pathname).
If
pathname
is relative and
dirfd
is the special value
AT_FDCWD,
then
pathname
is interpreted relative to the current working
directory of the calling process (like
chown(2)).
If
pathname
is absolute, then
dirfd
is ignored.
flags
can either be 0, or include the following flag:
- AT_SYMLINK_NOFOLLOW
-
If
pathname
is a symbolic link, do not dereference it:
instead operate on the link itself, like
lchown(2).
(By default,
fchownat()
dereferences symbolic links, like
chown(2).)
RETURN VALUE
On success,
fchownat()
returns 0.
On error, -1 is returned and
errno
is set to indicate the error.
ERRORS
The same errors that occur for
chown(2)
can also occur for
fchownat().
The following additional errors can occur for
fchownat():
- EBADF
-
dirfd
is not a valid file descriptor.
- EINVAL
-
Invalid flag specified in
flags.
- ENOTDIR
-
pathname
is relative and
dirfd
is a file descriptor referring to a file other than a directory.
VERSIONS
fchownat()
was added to Linux in kernel 2.6.16.
CONFORMING TO
POSIX.1-2008.
A similar system call exists on Solaris.
NOTES
See
openat(2)
for an explanation of the need for
fchownat().
SEE ALSO
chown(2),
openat(2),
path_resolution(7),
symlink(7)
COLOPHON
This page is part of release 3.27 of the Linux
man-pages
project.
A description of the project,
and information about reporting bugs,
can be found at
http://www.kernel.org/doc/man-pages/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- VERSIONS
-
- CONFORMING TO
-
- NOTES
-
- SEE ALSO
-
- COLOPHON
-
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Time: 07:34:54 GMT, March 26, 2013