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.\" $NetBSD: getlastlogx.3,v 1.2 2008/04/30 13:10:50 martin Exp $
.\"
.\" Copyright (c) 2003 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Thomas Klausner.
.\"
.\" 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
.\"
.Dd August 26, 2003
.Dt GETLASTLOGX 3
.Os
.Sh NAME
.Nm getlastlogx ,
.Nm getutmp ,
.Nm getutmpx ,
.Nm updlastlogx ,
.Nm updwtmpx ,
.Nm utmpxname
.Nd user accounting database functions
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In utmpx.h
.Ft struct lastlogx *
.Fn getlastlogx "const char *fname" "uid_t uid" "struct lastlogx *ll"
.Ft void
.Fn getutmp "const struct utmpx *ux" "struct utmp *u"
.Ft void
.Fn getutmpx "const struct utmp *u" "struct utmpx *ux"
.Ft int
.Fn updlastlogx "const char *fname" "uid_t uid" "struct lastlogx *ll"
.Ft int
.Fn updwtmpx "const char *file" "const struct utmpx *utx"
.Ft int
.Fn utmpxname "const char *fname"
.Sh DESCRIPTION
The
.Fn getlastlogx
function looks up the entry for the user with user id
.Fa uid
in the
.Xr lastlogx 5
file given by
.Fa fname
and returns it in
.Fa \&ll .
If the provided
.Fa \&ll
is
.Dv NULL ,
the necessary space will be allocated by
.Fn getlastlogx
and should be
.Fn free Ns d
by the caller.
.Pp
The
.Fn getutmp
function fills out the entries in the struct utmp
.Fa u
with the data provided in the struct utmpx
.Fa ux .
.Fn getutmpx
does the opposite, filling out the entries in the struct utmpx
.Fa ux
with the data provided in the struct utmp
.Fa u ,
and initializing all the unknown fields to 0.
The sole exception is the
.Fa ut_type
field, which will be initialized to
.Dv USER_PROCESS .
.Pp
The
.Fn updlastlogx
function tries to update the information for the user with the user id
.Fa uid
in the
.Xr lastlogx 5
file given by
.Fa fname
with the data supplied in
.Fa \&ll .
A
.Ft struct lastlogx
is defined like this:
.Bd -literal
struct lastlogx {
struct timeval ll_tv; /* time entry was created */
char ll_line[_UTX_LINESIZE]; /* tty name */
char ll_host[_UTX_HOSTSIZE]; /* host name */
struct sockaddr_storage ll_ss; /* address where entry was made from */
};
.Ed
All the fields should be filled out by the caller.
.Pp
The
.Fn updwtmpx
function updates the
.Xr wtmpx 5
file
.Fa file
with the
.Xr utmpx 5
entry
.Fa utx .
.Pp
The
.Fn utmpxname
function sets the default
.Xr utmpx 5
database file name to
.Fa fname .
.Sh RETURN VALUES
.Fn getlastlogx
returns the found entry on success, or
.Dv NULL
if it could not open the database, could not find an entry matching
.Fa uid
in there, or could not allocate the necessary space (in case
.Fa \&ll
was
.Dv NULL ) .
.Pp
.Fn utmpxname
returns 1 on success, or 0 if the supplied file name was too long or
did not end with
.Sq x .
.Pp
.Fn updlastlogx
and
.Fn updwtmpx
return 0 on success, or \-1 in case the database or file respectively
could not be opened or the data not written into it.
.Sh SEE ALSO
.Xr endutxent 3 ,
.Xr loginx 3 ,
.Xr utmpx 5
.Sh HISTORY
The functions
.Fn getutmp ,
.Fn getutmpx ,
.Fn updwtmpx ,
and
.Fn utmpxname
first appeared in
.Tn Solaris .
.Nm getlastlogx
and
.Nm updlastlogx
first appeared in
.Nx 2.0 .
|
