483f4c8371
also add the missing declaration of forkpty() to libutil.h. Btw., the calling interface for login(3) is crude. Some better abstraction is needed, perhaps similar to logwtmp(3). 2.2 candidate, but i'll wait for the spelling police first. :)
73 lines
2.2 KiB
Groff
73 lines
2.2 KiB
Groff
.\"
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.\" Copyright (c) 1996 Joerg Wunsch
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.\"
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $Id$
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.\" "
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.Dd December 29, 1996
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.Os
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.Dt LOGWTMP 3
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.Sh NAME
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.Nm logwtmp
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.Nd append a new record to the wtmp file
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.Sh SYNOPSIS
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.Fd #include <libutil.h>
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.Ft void
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.Fn logwtmp "char *line" "char *name" "char *host"
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.Pp
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Link with
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.Va -lutil
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on the
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.Xr cc 1
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command line.
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.Sh DESCRIPTION
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The function
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.Nm logwtmp
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tries to append a new record to the
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.Xr wtmp 5
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file, using the provided arguments
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.Ar line ,
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.Ar name ,
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and
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.Ar host ,
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and the current time.
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.Pp
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If the length of the hostname string
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.Ar host
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is longer than what would fit into the hostname field of the
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.Xr wtmp 5
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file, it will first be attempted to convert it into a numerical IP
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address using
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.Xr gethostbyname 3 .
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Failing this, the hostname will be recorded as
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.Qq invalid hostname .
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.Pp
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The calling process must have permission to write to both files.
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.Sh RETURN VALUES
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None.
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.Sh SEE ALSO
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.Xr gethostbyname 3 ,
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.Xr login 3 ,
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.Xr wtmp 5
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