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.\"-
.\" Copyright (c) 2005-2006 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.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
.\"
.\" $P4: //depot/projects/trustedbsd/openbsm/libbsm/au_class.3#7 $
.\"
.Dd April 19, 2005
.Dt AU_CLASS 3
.Os
.Sh NAME
.Nm getauclassent ,
.Nm getauclassent_r ,
.Nm getauclassnam ,
.Nm getauclassnam_r ,
.Nm setauclass ,
.Nm endauclass
.Nd "look up information from the audit_class database"
.Sh LIBRARY
.Lb libbsm
.Sh SYNOPSIS
.In bsm/libbsm.h
.Ft "struct au_class_ent *"
.Fn getauclassent void
.Ft "struct au_class_ent *"
.Fn getauclassent_r "struct au_class_ent *e"
.Ft "struct au_class_ent *"
.Fn getauclassnam "const char *name"
.Ft "struct au_class_ent *"
.Fn getauclassnam_r "struct au_class_ent *e" "const char *name"
.Ft void
.Fn setauclass void
.Ft void
.Fn endauclass void
.Sh DESCRIPTION
These interfaces may be used to look up information from the
.Xr audit_class 5
database, which describes audit event classes.
Audit event classes are described by
.Vt "struct au_class_ent" .
.Pp
The
.Fn getauclassent
function
will return the next class found in the
.Xr audit_class 5
database, or the first if the function has not yet been called.
.Dv NULL
will be returned if no further records are available.
.Pp
The
.Fn getauclassnam
function
looks up a class by name.
.Dv NULL
will be returned if no matching class can be found.
.Pp
The
.Fn setauclass
function
resets the iterator through the
.Xr audit_class 5
database, causing the next call to
.Fn getauclassent
to start again from the beginning of the file.
.Pp
The
.Fn endauclass
function
closes the
.Xr audit_class 5
database, if open.
.Sh SEE ALSO
.Xr libbsm 3 ,
.Xr audit_class 5
.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.
.Sh AUTHORS
.An -nosplit
This software was created by
.An Robert Watson ,
.An Wayne Salamon ,
and
.An 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 BUGS
These routines cannot currently distinguish between an entry not being found
and an error accessing the database.
The implementation should be changed to return an error via
.Va errno
when
.Dv NULL
is returned.
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