mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
100 lines
3.1 KiB
Groff
100 lines
3.1 KiB
Groff
.\" Copyright (c) 2001, 2002 Networks Associates Technology, Inc.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" This software was developed for the FreeBSD Project by Chris
|
|
.\" Costello at Safeport Network Services and NAI Labs, the Security
|
|
.\" Research Division of Network Associates, Inc. under DARPA/SPAWAR
|
|
.\" contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS
|
|
.\" research program.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. The name of the author may not be used to endorse or promote
|
|
.\" products derived from this software without specific prior written
|
|
.\" permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd December 21, 2001
|
|
.Dt MAC_FREE 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm mac_free
|
|
.Nd free MAC label
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In sys/mac.h
|
|
.Ft int
|
|
.Fn mac_free "mac_t label"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn mac_free
|
|
function frees the storage allocated to contain a
|
|
.Vt mac_t .
|
|
.Sh RETURN VALUES
|
|
The
|
|
.Fn mac_free
|
|
function always returns 0.
|
|
WARNING: see the notes in the
|
|
.Sx BUGS
|
|
section regarding the use of this
|
|
function.
|
|
.Sh SEE ALSO
|
|
.Xr mac 3 ,
|
|
.Xr mac_get 3 ,
|
|
.Xr mac_prepare 3 ,
|
|
.Xr mac_set 3 ,
|
|
.Xr mac_text 3 ,
|
|
.Xr posix1e 3 ,
|
|
.Xr mac 4 ,
|
|
.Xr mac 9
|
|
.Sh STANDARDS
|
|
POSIX.1e is described in IEEE POSIX.1e draft 17.
|
|
Discussion of the draft
|
|
continues on the cross-platform POSIX.1e implementation mailing list.
|
|
To join this list, see the
|
|
.Fx
|
|
POSIX.1e implementation page
|
|
for more information.
|
|
.Sh HISTORY
|
|
Support for Mandatory Access Control was introduced in
|
|
.Fx 5.0
|
|
as part of the
|
|
.Tn TrustedBSD
|
|
Project.
|
|
.Sh BUGS
|
|
POSIX.1e specifies that
|
|
.Fn mac_free
|
|
will be used to free text strings created using
|
|
.Xr mac_to_text 3 .
|
|
Because
|
|
.Vt mac_t
|
|
is a complex structure in the
|
|
.Tn TrustedBSD
|
|
implementation,
|
|
.Fn mac_free
|
|
is specific to
|
|
.Vt mac_3 ,
|
|
and must not be used to free the character strings returned from
|
|
.Fn mac_to_text .
|
|
Doing so may result in undefined behavior.
|