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.\"-
.\" Copyright (c) 2004 Apple Computer, Inc.
.\" Copyright (c) 2005 Robert N. M. Watson
.\" All rights reserved.
.\"
.\" 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. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
.\" its contributors may be used to endorse or promote products derived
.\" from this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY APPLE AND ITS 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 APPLE OR ITS 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,
.\" STRING 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.
.\"
.\" $P4: //depot/projects/trustedbsd/openbsm/libbsm/au_free_token.3#3 $
.\"
.Dd April 19, 2005
.Dt AU_FREE_TOKEN 3
.Os
.Sh NAME
.Nm au_free_token
.Nd "Deallocate a token_t created by any of the au_to_*() BSM API functions"
.Sh LIBRARY
.Lb libbsm
.Sh SYNOPSIS
.In libbsm.h
.Ft void
.Fn au_free_token "token_t *tok"
.Sh DESCRIPTION
The BSM API generally manages deallocation of
.Vt token_t
objects.
However, if
.Xr au_write 3
is passed a bad audit descriptor, the
.Vt token_t *
parameter will be left untouched.
In that case, the caller can deallocate the
.Vt token_t
using
.Nm
if desired.
.Pp
The
.Va tok
argument is a
.Vt token_t *
generated by one of the au_to_*() BSM API calls.
For convenience,
.Va tok
may be
.Dv NULL ,
in which case
.Nm
returns immediately.
.Sh IMPLEMENTATION NOTES
This is, in fact, what
.Xr audit_write 3
does, in keeping with the existing memory management model of the BSM API.
.Sh SEE ALSO
.Xr au_write 3 ,
.Xr audit_write 3 ,
.Xr libbsm 3
.Sh AUTHORS
This software was created by Robert Watson, Wayne Salamon, and Suresh
Krishnaswamy for McAfee Research, the security research division of McAfee,
Inc., under contract to Apple Computer, Inc.
.Pp
The Basic Security Module (BSM) interface to audit records and audit event
stream format were defined by Sun Microsystems.
.Sh HISTORY
The OpenBSM implementation was created by McAfee Research, the security
division of McAfee Inc., under contract to Apple Computer, Inc., in 2004.
It was subsequently adopted by the TrustedBSD Project as the foundation for
the OpenBSM distribution.
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