'\" te
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.TH GETAUEVENT 3BSM "Mar 6, 2017"
.SH NAME
getauevent, getauevnam, getauevnum, getauevnonam, setauevent, endauevent,
getauevent_r, getauevnam_r, getauevnum_r \- get audit_event entry
.SH SYNOPSIS
.LP
.nf
\fBcc\fR [ \fIflag\fR... ] \fIfile\fR... \fB-lbsm\fR \fB -lsocket \fR \fB -lnsl \fR  [ \fIlibrary\fR... ]
#include <sys/param.h>
#include <bsm/libbsm.h>

\fBstruct au_event_ent *\fR\fBgetauevent\fR(\fBvoid\fR);
.fi

.LP
.nf
\fBstruct au_event_ent *\fR\fBgetauevnam\fR(\fBchar *\fR\fIname\fR);
.fi

.LP
.nf
\fBstruct au_event_ent *\fR\fBgetauevnum\fR(\fBau_event_t\fR \fIevent_number\fR);
.fi

.LP
.nf
\fBau_event_t\fR \fBgetauevnonam\fR(\fBchar *\fR\fIevent_name\fR);
.fi

.LP
.nf
\fBvoid\fR \fBsetauevent\fR(\fBvoid\fR);
.fi

.LP
.nf
\fBvoid\fR \fBendauevent\fR(\fBvoid\fR);
.fi

.LP
.nf
\fBstruct au_event_ent *\fR\fBgetauevent_r\fR(\fBau_event_ent_t *\fR\fIe\fR);
.fi

.LP
.nf
\fBstruct au_event_ent *\fR\fBgetauevnam_r\fR(\fBau_event_ent_t *\fR\fIe\fR, \fBchar *\fR\fIname\fR);
.fi

.LP
.nf
\fBstruct au_event_ent *\fR\fBgetauevnum_r\fR(\fBau_event_ent_t *\fR\fIe\fR,
     \fBau_event_t\fR \fIevent_number\fR);
.fi

.SH DESCRIPTION
.LP
These functions document the programming interface for obtaining entries from
the \fBaudit_event\fR(4) file. The \fBgetauevent()\fR, \fBgetauevnam()\fR,
\fBgetauevnum()\fR, \fBgetauevent()\fR, \fBgetauevnam()\fR, and
\fBgetauevnum()\fR functions each return a pointer to an \fBaudit_event\fR
structure.
.sp
.LP
The \fBgetauevent()\fR and \fBgetauevent_r()\fR functions enumerate
\fBaudit_event\fR entries. Successive calls to these functions return either
successive \fBaudit_event\fR entries or \fINULL\fR.
.sp
.LP
The \fBgetauevnam()\fR and \fBgetauevnam_r()\fR functions search for an
\fBaudit_event\fR entry with \fIevent_name\fR.
.sp
.LP
The \fBgetauevnum()\fR and \fBgetauevnum_r()\fR functions search for an
\fBaudit_event\fR entry with \fIevent_number\fR.
.sp
.LP
The \fBgetauevnonam()\fR function searches for an \fBaudit_event\fR entry with
\fIevent_name\fR and returns the corresponding event number.
.sp
.LP
The \fBsetauevent()\fR function ``rewinds'' to the beginning of the enumeration
of  \fBaudit_event\fR entries.  Calls to \fBgetauevnam()\fR,
\fBgetauevnum()\fR, \fBgetauevnonum()\fR, \fBgetauevnam_r()\fR, or
\fBgetauevnum_r()\fR can leave the enumeration in an indeterminate state. The
\fBsetauevent()\fR function should be called before the first call to
\fBgetauevent()\fR or \fBgetauevent_r()\fR.
.sp
.LP
The \fBendauevent()\fR function can be called to indicate that
\fBaudit_event\fR processing is complete. The system can then close any open
\fBaudit_event\fR file, deallocate storage, and so forth.
.sp
.LP
The \fBgetauevent_r()\fR, \fBgetauevnam_r()\fR, and \fBgetauevnum_r()\fR
functions each take an argument \fIe\fR, which is a pointer to an
\fBau_event_ent_t\fR. This pointer is returned on a successful function call.
To assure there is enough space for the information returned, the applications
programmer should be sure to allocate \fBAU_EVENT_NAME_MAX\fR and
\fBAU_EVENT_DESC_MAX\fR bytes for the \fBae_name\fR and \fBac_desc\fR elements
of the \fBau_event_ent_t\fR data structure.
.sp
.LP
The internal representation of an \fBaudit_event\fR entry is an
\fBau_event_ent\fR structure defined in <\fBbsm/libbsm.h\fR> with the following
members:
.sp
.in +2
.nf
au_event_t      ae_number
char            *ae_name;
char            *ae_desc*;
au_class_t      ae_class;
.fi
.in -2

.SH RETURN VALUES
.LP
The \fBgetauevent()\fR, \fBgetauevnam()\fR, \fBgetauevnum()\fR,
\fBgetauevent_r()\fR, \fBgetauevnam_r()\fR, and \fBgetauevnum_r()\fR functions
return a pointer to a \fBau_event_ent\fR structure if the requested entry is
successfully located. Otherwise they return \fINULL\fR.
.sp
.LP
The \fBgetauevnonam()\fR function returns an event number of type
\fBau_event_t\fR if it successfully enumerates an entry. Otherwise it returns
\fINULL\fR, indicating it could not find the requested event name.
.SH FILES
.ne 2
.na
\fB\fB/etc/security/audit_event\fR\fR
.ad
.RS 29n
file that maps audit event numbers to audit event names
.RE

.sp
.ne 2
.na
\fB\fB/etc/passwd\fR\fR
.ad
.RS 29n
file that stores user-ID to username mappings
.RE

.SH ATTRIBUTES
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
MT-Level	MT-Safe with exceptions
.TE

.sp
.LP
The \fBgetauevent()\fR,  \fBgetauevnam()\fR, and \fBgetauevnum()\fR functions
are Unsafe. The equivalent functions \fBgetauevent_r()\fR,
\fBgetauevnam_r()\fR, and \fBgetauevnum_r()\fR provide the same functionality
and an MT-Safe function call interface.
.SH SEE ALSO
.LP
\fBgetauclassent\fR(3BSM), \fBgetpwnam\fR(3C),
\fBaudit_class\fR(4), \fBaudit_event\fR(4), \fBpasswd\fR(4),
\fBattributes\fR(5)
.SH NOTES
.LP
All information for the \fBgetauevent()\fR, \fBgetauevnam()\fR, and
\fBgetauevnum()\fR functions is contained in a static area, so it must be
copied if it is to be saved.