each allow the retrieval of an ACL from a file.
is a POSIX.1e call that allows the retrieval of an ACL of type
from a file descriptor.
is a non-portable form of
that allows the retrieval of any type of ACL from a file descriptor.
function is a POSIX.1e call that allows the retrieval of a
specified type of ACL from a file by name;
is a non-portable variation on
which does not follow a symlink if the target of the call is a
These functions may cause memory to be allocated.
The caller should free
any releasable memory, when the new ACL is no longer required, by calling
as an argument.
The ACL in the working storage is an independent copy of the ACL associated
with the object referred to by
The ACL in the working storage shall not participate in any access control
Fx Ns 's
support for POSIX.1e interfaces and features is still under
development at this time.
Upon successful completion, the function shall return a pointer to the ACL
that was retrieved.
Otherwise, a value of
shall be returned, and
shall be set to indicate the error.
If any of the following conditions occur, the
function shall return a value of
to the corresponding value:
Bq Er EACCES
Search permission is denied for a component of the path prefix, or the
object exists and the process does not have appropriate access rights.
Bq Er EBADF
argument is not a valid file descriptor.
Bq Er EINVAL
The ACL type passed is invalid for this file object.
Bq Er ENAMETOOLONG
A component of a pathname exceeded 255 characters, or an
entire path name exceeded 1023 characters.
Bq Er ENOENT
The named object does not exist, or the
argument points to an empty string.
POSIX.1e is described in IEEE POSIX.1e draft 17.
of the draft continues on the cross-platform POSIX.1e implementation
To join this list, see the
Fx POSIX.1e implementation
page for more information.
POSIX.1e support was introduced in
Fx 4.0 ,
and development continues.