sunet/doc/latex/intro.tex

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\chapter{Overview}\label{sec:intro}
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\section{What's in SUnet?}
The Scheme Underground Network Package contains a set of libraries for
doing Net hacking from Scheme/scsh. It includes:
\begin{description}
\item[The SUnet Web server]
This is a complete implementation of an HTTP 1.0 server in Scheme.
The server contains other standalone packages that may separately be
of use:
\begin{itemize}
\item URI and URL parsers and unparsers.
\item A library to help writing CGI scripts in Scheme.
\item Server extensions for interfacing to CGI scripts.
\item Server extensions for uploading Scheme code.
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\item Simple structured HTML output library
\end{itemize}
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\item[The SUnet ftp daemon]
This is a complete ftp server in Scheme.
\item[ftp client library] Access an ftp server programmatically.
\item[SMTP client library]
Forge mail from the comfort of your own Scheme process.
\item[POP3 client library]
Get at your mails from inside scsh.
\item[RFC822 header library]
Read email-style headers. Useful in several contexts (smtp, http,
etc.)
\item[Daytime and Time protocol client library]
Find out what time it is without paying for a Rolex.
\item[An \texttt{ls} clone] Display Unix-style directory listings
without running \texttt{ls}.
\end{description}
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\section{Obtaining the system}
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The SUnet code is available
\urlhd{http://www.scsh.net/sunet/}{here}{from
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\url{http://www.scsh.net/sunet/}}. To run the code, you need
version 0.6.3 or later of \urlhd{http://www.scsh.net/}{scsh}{scsh from
\url{http://www.scsh.net/}}.
\section{How to use the packages}
Scsh is started in the SUnet top-level directory. Then, the
description file of the modules is loaded and the \texttt{ftp} module
is opened (to use a ftp client). After the things are done, scsh is
finished via the \verb|,exit| command.
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%
\begin{alltt}
atari-2600[72] scsh-0.6.2
Welcome to scsh 0.6.2 (Gambit-C 4.0)
Type ,? for help.
> ,config ,load packages.scm
modules.scm
> ,open ftp
Load structure ftp (y/n)? y
[ecm-utilities ecm-utilities.scm]
[netrc netrc.scm]
[ftp ftp.scm]
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> ; call library code
> ,exit
atari-2600[73]
\end{alltt}
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