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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#2 $
+.\"
+.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_tokenen "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.
+