The
acl_get_fd ();
function retrieves the access ACL associated with the file referred to by
fd
The ACL is placed into working storage and
acl_get_fd ();
returns a pointer to that storage.
In order to read an ACL from an object, a process must have read access to
the object's attributes.
This function may cause memory to be allocated. The caller should free any
releasable memory, when the new ACL is no longer required, by calling
acl_free3
with the
(void*)acl_t
returned by
acl_get_fd ();
as an argument.
RETURN VALUE
On success, this function shall return a pointer to the
working storage. On error, a value of
(acl_t)NULL
shall be returned, and
errno
is set appropriately.
ERRORS
If any of the following conditions occur, the
acl_get_fd ();
function returns a value of
(acl_t)NULL
and sets
errno
to the corresponding value:
Bq Er EBADF
The
fd
argument is not a valid file descriptor.
Bq Er ENOMEM
The ACL working storage requires more memory than is allowed by the hardware or system-imposed memory management constraints.
Bq Er ENOTSUP
The file system on which the file identified by
fd
is located does not support ACLs, or ACLs are disabled.
Derived from the FreeBSD manual pages written by
An Robert N M Watson Aq [email protected] ,
and adapted for Linux by
An Andreas Gruenbacher Aq [email protected] .
