freebsd-nq/lib/libutil/logout.3

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.\"
.\" Copyright (c) 1996 Joerg Wunsch
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.\"
.\" All rights reserved.
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.\"
.\" 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.
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.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
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.\"
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.\" $FreeBSD$
.\" "
.Dd December 29, 1996
.Os
.Dt LOGOUT 3
.Sh NAME
.Nm logout
.Nd remove an entry from the utmp file
.Sh LIBRARY
.Lb libutil
.Sh SYNOPSIS
.Fd #include <sys/types.h>
.Fd #include <libutil.h>
.Ft int
.Fn logout "const char *line"
.Sh DESCRIPTION
The function
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.Fn logout
searches the
.Xr utmp 5
file for the slot described by
.Ar line
(usually a tty name). If such a slot could be found, it will be updated
with a record where the
.Em name
and
.Em host
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fields are empty, and the time stamp field is updated to the current time.
.Sh RETURN VALUES
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.Fn Logout
returns 1 if the slot described by
.Ar line
has been found and updated, 0 otherwise.
.Sh SEE ALSO
.Xr login 3 ,
.Xr utmp 5 ,
.Xr wtmp 5
.Sh BUGS
The calling interface of
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.Fn logout
is inconsistent with that of
.Xr login 3 .