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<title>bidilink @PACKAGE_VERSION@</title>
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<h1><a name="top">bidilink @PACKAGE_VERSION@</a></h1>
<p><i>Copyright 2003 Lennart Poettering <@PACKAGE_BUGREPORT@></i></p>
<ul class="toc">
<li><a href="#license">License</a></li>
<li><a href="#news">News</a></li>
<li><a href="#overview">Overview</a></li>
<li><a href="#status">Status</a></li>
<li><a href="#documentation">Documentation</a></li>
<li><a href="#requirements">Requirements</a></li>
<li><a href="#installation">Installation</a></li>
<li><a href="#acks">Acknowledgements</a></li>
<li><a href="#download">Download</a></li>
</ul>
<h2><a name="license">License</a></h2>
<p>This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.</p>
<p>This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.</p>
<p>You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.</p>
<h2><a name="news">News</a></h2>
<div class="news-date">Wed Jan 14 2004: </div>
<p class="news-text"><a href="@PACKAGE_URL@bidilink-0.1.tar.gz">Version 0.1</a> released, initial release.</p>
<h2><a name="overview">Overview</a></h2>
<p><tt>bidilink</tt> is a general purpose Unix tool for linking two
bidirectional data streams together. It extends the standard Unix
"filter" paradigma to bidrectional streams.</p>
<h2><a name="status">Status</a></h2>
<p>Version @PACKAGE_VERSION@ is more or less stable. Its has the following stream drivers:</p>
<ul>
<li><tt>std:</tt> - <tt>STDIN</tt>, <tt>STDOUT</tt> of the process</li>
<li><tt>exec:PROGRAM</tt> - <tt>fork()</tt> off a process and use its <tt>STDIN</tt> and <tt>STDOUT</tt></li>
<li><tt>tty:TTYDEVICE</tt> - Open a TTY device (like a serial port) as client</li>
<li><tt>pty:[PTYNAME]</tt> - Allocate a pseudo TTY device as master</li>
<li><tt>tcp-client:HOSTNAME:PORT</tt> - Connect to another or the local host via TCP/IP</li>
<li><tt>tcp-server:[IPADDRESS:]PORT</tt> - Listen on a local port and wait for an incoming connection</li>
<li><tt>unix-client:SOCKNAME</tt> - Connect to a local Unix domain socket</li>
<li><tt>unix-server:SOCKNAME</tt> - Listen on a local Unix domain socket</li>
</ul>
<p>More drivers are planned, including:</p>
<ul>
<li><tt>dsp:</tt> - Full duplex audio with OSS (Open Sound System)</li>
<li><tt>tun:</tt> - Raw network access using the TUN subsystem</li>
<li><tt>tap:</tt> - Raw network access using the TAP subsystem</li>
</ul>
<h2><a name="documentation">Documentation</a></h2>
<p>Have a look on the man page <a href="@PACKAGE_URL@bidilink.1.xml"><tt>bidilink(1)</tt></a>. (An XSLT capable browser is required)</p>
<p><tt>bidilink</tt> may be used in several different ways. Some examples follow.</p>
<h3>Forward a serial port of another machine to a local pseudo TTY</h3>
<pre>bidilink "exec:ssh OTHERMACHINE bidilink tty:/dev/ttyS0" pty:/dev/rmodem</pre>
<p><i>This will create a symbolic link <tt>/dev/rmodem</tt> to the
allocated pseudo TTY device. Point your application to the device to
use the forwarded port. This requires that <tt>bidilink</tt> is
installed on both the local machine and the remote machine. The pseudo tty is compatible with <tt>pppd</tt> or <tt>minicom</tt>.</i></p>
<h3>Bind a local serial port to a local TCP port</h3>
<pre>bidilink tty:/dev/ttyS0 tcp-server:4711</pre>
<p><i>Use <tt>telnet localhost 4711</tt> to connect to the device</i></p>
<h3>Bind a remote TCP port to a local pseudo TTY</h3>
<pre>bidilink pty:/dev/rmodem tcp-client:OTHERMACHINE:4711</pre>
<p><i>This may be used as client to the server trick descibed above.</i></p>
<h3>Open a local Unix socket (<tt>SOCK_STREAM</tt>) to the Internet:</h3>
<pre>bidilink tcp-server:4711 unix-client:/tmp/.esd/socket</pre>
<h2><a name="requirements">Requirements</a></h2>
<p>A recent Linux distribution. Probably, it is simple to port <tt>bidilink</tt> to other platforms, but this has not been done yet.</p>
<h2><a name="installation">Installation</a></h2>
<p>As this package is made with the GNU <tt>autotools</tt> you should run
<tt>./configure</tt> inside the distribution directory for configuring
the source tree. After that you should run <tt>make</tt> for
compilation and <tt>make install</tt> (as root) for installation of
<tt>bidilink</tt>.</p>
<h2><a name="acks">Acknowledgements</a></h2>
<p>None so far</p>
<h2><a name="download">Download</a></h2>
<p>The newest release is always available from <a href="@PACKAGE_URL@">@PACKAGE_URL@</a></p>
<p>The current release is <a href="@PACKAGE_URL@bidilink-@PACKAGE_VERSION@.tar.gz">@PACKAGE_VERSION@</a></p>
<p>Get <tt>bidilink</tt>'s development sources from the <a href="http://subversion.tigris.org/">Subversion</a> <a href="https://seth.intheinter.net:8081/svn/bidilink/">repository</a>.</p>
<hr/>
<address class="grey">Lennart Poettering <@PACKAGE_BUGREPORT@>, January 2004</address>
<div class="grey"><i>$Id$</i></div>
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