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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_event.3#8 $
.\"
.Dd April 19, 2005
.Dt AU_EVENT 3
.Os
.Sh NAME
.Nm free_au_event_ent ,
.Nm setauevent ,
.Nm endauevent ,
.Nm getauevent ,
.Nm getauevent_r ,
.Nm getauevnam ,
.Nm getauevnam_r ,
.Nm getauevnum ,
.Nm getauevnum_r ,
.Nm getauevnonam ,
.Nm getauevnonam_r
.Nd "look up information from the audit_event database"
.Sh LIBRARY
.Lb libbsm
.Sh SYNOPSIS
.In bsm/libbsm.h
.Ft void
.Fn setauevent void
.Ft void
.Fn endauevent void
.Ft "struct au_event_ent *"
.Fn getauevent void
.Ft "struct au_event_ent *"
.Fn getauevent_r "struct au_event_ent *e"
.Ft "struct au_event_ent *"
.Fn getauevnam "const char *name"
.Ft "struct au_event_ent *"
.Fn getauevnam_r "struct au_event_ent *e" "const char *name"
.Ft "struct au_event_ent *"
.Fn getauevnum "au_event_t event_number"
.Ft "struct au_event_ent *"
.Fn getauevnum_r "struct au_event_ent *e" "au_event_t event_number"
.Ft "au_event_t *"
.Fn getauevnonam "const char *event_name"
.Ft "au_event_t *"
.Fn getauevnonam_r "au_event_t *ev" "const char *event_name"
.Sh DESCRIPTION
These interfaces may be used to look up information from the
.Xr audit_event 5
database, which describes audit events.
Entries in the database are described by
.Vt "struct au_event_ent"
entries, which are returned by calls to
.Fn getauevent ,
.Fn getauevnam ,
or
.Fn getauevnum .
It is also possible to look up an event number via a call to
.Fn getauevnonam .
.Pp
The
.Fn setauevent
function
resets the database access session for
.Xr audit_event 5 ,
so that the next call to
.Fn getauevent
will start with the first entry in the database.
.Pp
The
.Fn endauevent
function
closes the
.Xr audit_event 5
database session.
.Pp
The
.Fn getauevent
function
returns a reference to the next entry in the
.Xr audit_event 5
database.
.Pp
The
.Fn getauevnam
function
returns a reference to the entry in the
.Xr audit_event 5
database with a name of
.Fa name .
.Pp
.Fn getauevnum
returns a reference to the entry in the
.Xr audit_event 5
database with an event number of
.Fa event_number .
.Pp
The
.Fn getauevnonam
function
returns a reference to an audit event number using the
.Xr audit_event 5
database.
.Sh RETURN VALUES
Functions
.Fn getauevent ,
.Fn getauevent_r ,
.Fn getauevnam ,
.Fn getauevnam_r ,
.Fn getauevnum ,
.Fn getauevnum_r ,
and
.Fn getauevnonam
will return a reference to a
.Vt "struct au_event_ent"
or
.Vt au_event_t
on success, or
.Dv NULL
on failure, with
.Va errno
set to provide further error information.
.Sh SEE ALSO
.Xr libbsm 3 ,
.Xr audit_event 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
The
.Va errno
variable
is not always properly set following a failure.
.Pp
These routines are thread-safe, but not re-entrant, so simultaneous or
interleaved use of these functions will affect the iterator.
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