11 lines
2.4 KiB
HTML
11 lines
2.4 KiB
HTML
<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>firewall code</title><link rel="stylesheet" href="../../jargon.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.61.0"/><link rel="home" href="../index.html" title="The Jargon File"/><link rel="up" href="../F.html" title="F"/><link rel="previous" href="firehose-syndrome.html" title="firehose syndrome"/><link rel="next" href="firewall-machine.html" title="firewall machine"/></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">firewall code</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="firehose-syndrome.html">Prev</a> </td><th width="60%" align="center">F</th><td width="20%" align="right"> <a accesskey="n" href="firewall-machine.html">Next</a></td></tr></table><hr/></div><dt><a id="firewall-code"/><dt xmlns="" id="firewall-code"><b>firewall code</b>: <span xmlns="http://www.w3.org/1999/xhtml" class="grammar">n.</span></dt></dt><dd><p> 1. The code you put in a system (say, a telephone switch) to make
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sure that the users can't do any damage. Since users always want to be able
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to do everything but never want to suffer for any mistakes, the
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construction of a firewall is a question not only of defensive coding but
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also of interface presentation, so that users don't even get curious about
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those corners of a system where they can burn themselves.</p></dd><dd><p> 2. Any sanity check inserted to catch a
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<a href="../C/can-t-happen.html"><i class="glossterm">can't happen</i></a> error. Wise programmers often change code to fix a bug
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twice: once to fix the bug, and once to insert a firewall which would have
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arrested the bug before it did quite as much damage.</p></dd><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="firehose-syndrome.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="../F.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="firewall-machine.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">firehose syndrome </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> firewall machine</td></tr></table></div></body></html>
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