fstatat - get file status relative to a directory file descriptor
SYNOPSIS
#define _ATFILE_SOURCE#include <fcntl.h> /* Definition of AT_* constants */#include <sys/stat.h>int fstatat(int dirfd, const char *pathname, struct stat *buf, int flags);
DESCRIPTION
The
fstatat()
system call operates in exactly the same way as
stat(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
stat(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
stat(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 return information about the link itself, like
lstat(2).
(By default,
fstatat()
dereferences symbolic links, like
stat(2).)
RETURN VALUE
On success,
fstatat()
returns 0.
On error, -1 is returned and
errno
is set to indicate the error.
ERRORS
The same errors that occur for
stat(2)
can also occur for
fstatat().
The following additional errors can occur for
fstatat():
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
fstatat()
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
fstatat().
This page is part of release 3.14 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/.
