mirror of
https://github.com/lunarmodules/luasocket.git
synced 2024-11-08 22:38:21 +01:00
256 lines
9.2 KiB
HTML
256 lines
9.2 KiB
HTML
<!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> ·
|
|
<a href="home.html#download">download</a> ·
|
|
<a href="installation.html">installation</a> ·
|
|
<a href="introduction.html">introduction</a> ·
|
|
<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 © 2004-2005 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 (final) is now available for download! It is
|
|
compatible with Lua 5.0 and has been tested on
|
|
Windows XP, Linux, and Mac OS X.
|
|
</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>
|
|
available from LuaForge.
|
|
</p>
|
|
|
|
<p>
|
|
For those that want to give LuaSocket a quick try, download the
|
|
stand-alone archive and unpack everything into
|
|
a directory, say <tt>c:\luasocket</tt>. Then set <tt>LUA_INIT</tt> to load
|
|
the <tt>compat-5.1.lua</tt> and set <tt>LUA_PATH</tt> and
|
|
<tt>LUA_CPATH</tt> to look for files in the current directory:
|
|
</p>
|
|
|
|
<pre class=example>
|
|
c:\luasocket\> set LUA_INIT=@c:\luasocket\compat-5.1.lua
|
|
c:\luasocket\> set LUA_CPATH=?.dll
|
|
c:\luasocket\> set LUA_PATH=?.lua
|
|
</pre>
|
|
|
|
<p>
|
|
From that directory, you can then run the interpreter and it should find all
|
|
files it needs. To download this manual page from the Internet, for example,
|
|
do the following:
|
|
</p>
|
|
|
|
<pre class=example>
|
|
c:\luasocket\> lua50
|
|
Lua 5.0.2 Copyright (C) 1994-2004 Tecgraf, PUC-Rio
|
|
> http = require"socket.http"
|
|
> print(http.request"http://www.cs.princeton.edu/~diego/professional/luasocket/")
|
|
--> the source to this web page gets dumped to terminal
|
|
</pre>
|
|
|
|
<p> When you are done playing, 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. Recently, Mike Pall
|
|
has been helping a lot too! Thanks to you all!
|
|
</p>
|
|
|
|
<!-- whatsnew +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
|
|
|
|
<h2 id=new>What's New</h2>
|
|
|
|
<p>
|
|
There is no big change for the 2.0 (final) release. It is basically a
|
|
bug fix release. The only improvement is in the non-blocking
|
|
support.
|
|
</p>
|
|
|
|
<ul>
|
|
<li> New: sample module <tt>dispatch.lua</tt> implements a
|
|
coroutine based dispatcher;
|
|
<li> New: sample <tt>check-links.lua</tt> works
|
|
both in blocking and non-blocking mode using coroutines
|
|
(using the new dispatcher);
|
|
<li> New: sample <tt>forward.lua</tt> implements a coroutine
|
|
based forward server (using the new dispatcher);
|
|
<li> Improved: <tt>tcp:send(data, i, j)</tt> to return <tt>(i+sent-1)</tt>. This is great for non-blocking I/O, but might break some code;
|
|
<li> Improved: HTTP, SMTP, and FTP functions to accept a new field
|
|
<tt>create</tt> that overrides the function used to create socket objects;
|
|
<li> Improved: <tt>smtp.message</tt> now supports multipart/alternative
|
|
(for the HTML messages we all love so much);
|
|
<li> Fixed: <tt>smtp.send</tt> was hanging on errors returned by LTN12 sources;
|
|
<li> Fixed: <tt>url.absolute()</tt> to work when <tt>base_url</tt> is in
|
|
parsed form;
|
|
<li> Fixed: <tt>http.request()</tt> not to redirect when the location
|
|
header is empty (naughty servers...);
|
|
<li> Fixed: <tt>tcp{client}:shutdown()</tt> to check for class instead of
|
|
group;
|
|
<li> Fixed: The manual to stop using <tt>socket.try()</tt> in place of
|
|
<tt>assert()</tt>, since it can't;
|
|
<li> Improved: Got rid of <tt>package.loaded.base = _G</tt> kludge;
|
|
<li> Fixed: Parts of the manual referred to <tt>require("http")</tt> instead of
|
|
<tt>require("socket.http")</tt>;
|
|
<li> Improved: Socket and MIME binaries are called 'core' each inside their
|
|
directory (ex. "socket/core.dll"). The 'l' prefix was just a bad idea;
|
|
<li> Improved: Using bundles in Mac OS X, instead of dylibs;
|
|
<li> Fixed: <tt>luasocket.h</tt> to export <tt>luaopen_socket_core</tt>;
|
|
<li> Fixed: <tt>udp:setpeername()</tt> so you can "disconnect" an
|
|
<tt>UDP</tt> socket;
|
|
<li> Fixed: A weird bug in HTTP support that caused some requests to
|
|
fail (Florian Berger);
|
|
<li> Fixed: Bug in <tt>socket.select()</tt> that caused sockets
|
|
with descriptor 0 to be ignored (Renato Maia);
|
|
<li> Fixed: "Bug" that caused <tt>dns.toip()</tt> to crash under uLinux
|
|
(William Trenker);
|
|
<li> Fixed: "Bug" that caused <tt>gethostbyname</tt> to crash under VMS
|
|
(Renato Maia);
|
|
<li> Fixed: <tt>tcp:send("")</tt> to return 0 bytes sent (Alexander Marinov);
|
|
<li> Improved: <tt>socket.DEBUG</tt> and <tt>socket.VERSION</tt> became <tt>socket._DEBUGs</tt> and <tt>socket._VERSION</tt> for uniformity with other libraries;
|
|
<li> Improved: <tt>socket.select</tt> now works on empty sets on Windows.
|
|
</ul>
|
|
|
|
<!-- incompatible +++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
|
|
|
|
<h3 id=incompatible>Incompatibilities with previous versions</h3>
|
|
|
|
<ul>
|
|
<li> If you use the return value of <tt>tcp:send()</tt> <em>and</em> you
|
|
use the extra parameters to select only part of the string to be sent, your
|
|
code is now broken, but when you fix it, it will be much simpler;
|
|
<li> If you check <tt>socket.DEBUG</tt> or <tt>socket.VERSION</tt>,
|
|
change it to <tt>socket._DEBUG</tt> or <tt>socket._VERSION</tt>.
|
|
</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> ·
|
|
<a href="installation.html">installation</a> ·
|
|
<a href="introduction.html">introduction</a> ·
|
|
<a href="reference.html">reference</a>
|
|
</p>
|
|
<p>
|
|
<small>
|
|
Last modified by Diego Nehab on <br>
|
|
Mon Nov 21 01:56:56 EST 2005
|
|
</small>
|
|
</p>
|
|
</center>
|
|
</div>
|
|
|
|
</body>
|
|
</html>
|