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date Wed, 27 Aug 2008 22:44:22 -0700
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 
    "http://www.w3.org/TR/html4/strict.dtd">
<html>

<head>
<meta name="description" content="The LuaSocket Homepage">
<meta name="keywords" content="Lua, LuaSocket, Network, Library, Support, Internet">
<title>LuaSocket: Network support for the Lua language </title>
<link rel="stylesheet" href="reference.css" type="text/css">
</head>

<body>

<!-- header +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->

<div class=header>
<hr>
<center>
<table summary="LuaSocket logo">
<tr><td align=center><a href="http://www.lua.org">
<img width=128 height=128 border=0 alt="LuaSocket" src="luasocket.png">
</a></td></tr>
<tr><td align=center valign=top>Network support for the Lua language
</td></tr>
</table>
<p class=bar>
<a href="home.html">home</a> &middot;
<a href="home.html#download">download</a> &middot;
<a href="installation.html">installation</a> &middot;
<a href="introduction.html">introduction</a> &middot;
<a href="reference.html">reference</a> 
</p>
</center>
<hr>
</div>

<!-- whatis +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->

<h2 id=whatis>What is LuaSocket?</h2>

<p>
LuaSocket  is a  <a href="http://www.lua.org">Lua</a>  extension library
that is composed by two parts: a C core that provides  support for the TCP
and UDP transport layers, and a set of Lua modules that add support for
functionality commonly needed by applications that deal with the Internet. 
</p>

<p>
The core support has been  implemented so that it  is both efficient and
simple to use.  It is available to any Lua application once it has been
properly initialized by the interpreter in use. The code has been tested
and runs well on several Windows and Unix platforms. </p>

<p>
Among the support modules, the most commonly used implement the 
<a href=smtp.html>SMTP</a>
(sending  e-mails),  
<a href=http.html>HTTP</a>
(WWW access)  and  
<a href=ftp.html>FTP</a>  
(uploading  and downloading files) client
protocols. These provide a very natural and generic interface to the
functionality defined by each protocol. 
In addition, you will find that the 
<a href=mime.html>MIME</a> (common encodings), 
<a href=url.html>URL</a> 
(anything you could possible want to do with one) and 
<a href=ltn12.html>LTN12</a> 
(filters, sinks, sources and pumps) modules can be very handy. 
</p>

<p>
The library is available under the same  
<a href="http://www.lua.org/copyright.html">
terms and conditions</a> as the Lua language, the MIT license. The idea is
that if you can use Lua in a project, you should also be able to use 
LuaSocket.
</p>

<p>
Copyright &copy; 2004-2007 Diego Nehab. All rights reserved. <br>
Author: <A href="http://www.cs.princeton.edu/~diego">Diego Nehab</a>
</p>

<!-- download +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->

<h2 id=download>Download</h2>

<p>
LuaSocket version 2.0.2 is now  available for download! It  is
compatible with  Lua&nbsp;5.1, and has    
been tested on Windows&nbsp;XP, Linux, and Mac OS X. Chances
are it works well on most UNIX distributions and Windows flavors.
</p>

<p>
The library can be downloaded in source code from the
<a href=http://luaforge.net/projects/luasocket/>LuaSocket
project page</a> at LuaForge. 
Besides the full C and Lua source code for the library, the distribution
contains several examples, this user's manual and basic test procedures.
</p>

<p>
Danilo Tuler is maintaining Win32 binaries for LuaSocket, which are also
available from LuaForge.  These are compatible with the 
<a href=http://luaforge.net/projects/luabinaries>LuaBinaries</a>,
also available from LuaForge. 
</p>

<p> Take a look at the <a
href=installation.html>installation</a> section of the
manual to find out how to properly install the library.
</p>

<!-- thanks +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->

<h2 id=thanks>Special thanks</h2>

<p>
Throughout LuaSocket's history, many people gave suggestions that helped
improve it. For that, I thank the Lua community. 
Special thanks go to
David Burgess, who has helped push the library to a new level of quality and
from whom I have learned a lot of stuff that doesn't show up in RFCs.
Special thanks also to Carlos Cassino, who played a big part in the 
extensible design seen in the C core of LuaSocket 2.0. Mike Pall
has been helping a lot too! Thanks to you all! 
</p>

<!-- whatsnew +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->

<h2 id=new>What's New</h2>

<p>
2.0.2 is just a bug-fix/update release. 
</p>

<ul>
<li> Improved: http.request() now supports deprecated
HTTP/0.9 servers (Florian Berger);
<li> Fixed: could return "timedout" instead of "timeout" (Leo Leo);
<li> Fixed: crash when reading '*a' on closed socket (Paul Ducklin);
<li> Fixed: return values are consistent when reading from closed sockets;
<li> Fixed: case sensitivity in headers of multipart
messages in smtp.message() (Graham Henstridge);
<li> Fixed a couple instances of error() being called instead of
base.error(). These would cause an error when an error was
reported :)  (Ketmar Dark);
<li> Fixed: test script now uses pairs() iterator instead
of the old Lua syntax (Robert Dodier).
</ul>

<p>
2.0.1 is just a bug-fix/update release. 
</p>

<ul>
<li> Updated: now using <tt>compat-5.1r5</tt>; 
<li> Improved: <tt>http.request</tt> is more robust to
malformed URLs (Adrian Sietsma);
<li> Improved: the simple <tt>http.request</tt> interface sends a
"<tt>Content-type: application/x-www-form-urlencoded</tt>"
header (William Trenker);
<li> Improved: <tt>http.request</tt> is robust to evil
servers that send inappropriate 100-continue messages
(David Burgess);
<li> Fixed: <tt>http.request</tt> was using the old host header during
redirects (Florian Berger);
<li> Fixed: sample <tt>unix.c</tt> had fallen through the
cracks during development (Matthew Percival); 
<li> Fixed: error code was not being propagated correctly in
ftp.lua (David Burgess). 
</ul>

<!-- old ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->

<h2 id=old>Old Versions</h2>

<p>
All  previous versions  of the  LuaSocket library  can be  downloaded <a
href="http://www.cs.princeton.edu/~diego/professional/luasocket/old">
here</a>. Although these  versions are  no longer  supported, they  are
still available for those that have compatibility issues. 
</p>

<!-- footer +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->

<div class=footer>
<hr>
<center>
<p class=bar>
<a href="home.html#download">download</a> &middot;
<a href="installation.html">installation</a> &middot;
<a href="introduction.html">introduction</a> &middot;
<a href="reference.html">reference</a>
</p>
<p>
<small>
Last modified by Diego Nehab on <br>
Wed Oct 3 02:07:59 BRT 2007
</small>
</p>
</center>
</div>

</body>
</html>