| NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | VERSIONS | CONFORMING TO | NOTES | SEE ALSO | COLOPHON | The Linux Programming Interface |
SYMLINKAT(2) Linux Programmer's Manual SYMLINKAT(2)
symlinkat - create a symbolic link relative to a directory file descriptor
#include <fcntl.h> /* Definition of AT_* constants */
#include <stdio.h>
int symlinkat(const char *oldpath, int newdirfd, const char *newpath);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
symlinkat():
Since glibc 2.10:
_XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
Before glibc 2.10:
_ATFILE_SOURCE
The symlinkat() system call operates in exactly the same way as symlink(2),
except for the differences described in this manual page.
If the pathname given in newpath is relative, then it is interpreted relative
to the directory referred to by the file descriptor newdirfd (rather than
relative to the current working directory of the calling process, as is done
by symlink(2) for a relative pathname).
If newpath is relative and newdirfd is the special value AT_FDCWD, then
newpath is interpreted relative to the current working directory of the
calling process (like symlink(2)).
If newpath is absolute, then newdirfd is ignored.
On success, symlinkat() returns 0. On error, -1 is returned and errno is set
to indicate the error.
The same errors that occur for symlink(2) can also occur for symlinkat(). The
following additional errors can occur for symlinkat():
EBADF newdirfd is not a valid file descriptor.
ENOTDIR
newpath is relative and newdirfd is a file descriptor referring to a
file other than a directory.
symlinkat() was added to Linux in kernel 2.6.16.
POSIX.1-2008.
See openat(2) for an explanation of the need for symlinkat().
openat(2), symlink(2), path_resolution(7), symlink(7)
This page is part of release 3.32 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/.
Linux 2009-12-13 SYMLINKAT(2)
HTML rendering created 2010-12-03 by Michael Kerrisk, author of The Linux Programming Interface