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<!DOCTYPE HTML PUBLIC "-//W3O//DTD W3 HTML 2.0//EN"><!-- This collection of hypertext pages is Copyright 1995-2005 by Steve Summit. --><!-- Content from the book "C Programming FAQs: Frequently Asked Questions" --><!-- (Addison-Wesley, 1995, ISBN 0-201-84519-9) is made available here by --><!-- permission of the author and the publisher as a service to the community. --><!-- It is intended to complement the use of the published text --><!-- and is protected by international copyright laws. --><!-- The on-line content may be accessed freely for personal use --><!-- but may not be published or retransmitted without explicit permission. --><!-- --><!-- this page built Sat Dec 24 21:47:47 2005 by faqproc version 2.7 --><!-- from source file resources.sgml dated Thu Dec 22 12:57:29 2005 --><!-- corresponding to FAQ list version 4.0 --><html><!-- Mirrored from c-faq.com/resources/sources.html by HTTrack Website Copier/3.x [XR&CO'2008], Sat, 14 Mar 2009 07:59:02 GMT --><head><meta name=GENERATOR content="faqproc"><title>Question 18.16</title><link href="mplib.html" rev=precedes><link href="faqavail.html" rel=precedes><link href="index.html" rev=subdocument></head><body bgcolor="#ffffff"><a href="mplib.html" rev=precedes><img src="../images/buttonleft.gif" alt="prev"></a><a href="index.html" rev=subdocument><img src="../images/buttonup.gif" alt="up"></a><a href="faqavail.html" rel=precedes><img src="../images/buttonright.gif" alt="next"></a> <a href="../index-2.html"><img src="../images/buttontop.gif" alt="top/contents"></a><a href="../search.html"><img src="../images/buttonsrch.gif" alt="search"></a><hr><p><!-- qbegin --><h1>comp.lang.c FAQ list<font color=blue>·</font><!-- qtag -->Question 18.16</h1><p><font face=Helvetica size=8 color=blue><b>Q:</b></font>Whereand howcan I get copies of all these freely distributable programs?</p><p><hr><p><font face=Helvetica size=8 color=blue><b>A:</b></font>As the number of available programs,the number of publicly accessible archive sites,and the number of people trying to access themall grow,this question becomes both easier and more difficult to answer.</p><p>There are a number oflarge,public-spiritedarchive sitesout there,such as<a href="ftp://ftp.uu.net/"><TT>ftp.uu.net</TT></a>,<a href="ftp://archive.umich.edu/"><TT>archive.umich.edu</TT></a>,<a href="ftp://oak.oakland.edu/"><TT>oak.oakland.edu</TT></a>,<a href="ftp://sumex-aim.stanford.edu/"><TT>sumex-aim.stanford.edu</TT></a>,and<a href="ftp://wuarchive.wustl.edu/"><TT>wuarchive.wustl.edu</TT></a>,which have huge amounts of softwareand other informationall freelyavailable.For the FSF's GNU project,the central distribution site is<a href="ftp://prep.ai.mit.edu/"><TT>prep.ai.mit.edu</TT></a>.These well-known sites tend to be extremely busy and hard to reach,but there are also numerous ``mirror'' siteswhich try to spread the load around.</p><p>On the connected Internet,the traditional way to retrieve files from an archive siteis with anonymous ftp.For those without ftp access,there are also several ftp-by-mail servers in operation.More and more,the world-wide web (WWW)is being used toannounce, index,and even transferlarge data files.There are probably yet newer access methods, too.</p><p>Those aresome ofthe easy parts of the question to answer.The hard part is in the details--thisdocument cannotbegin totrack orlist all of theavailable archive sitesorall of the various ways of accessing them.If you have access to the net at all,you probably have access to more up-to-date informationaboutactive sites and useful access methodsthan thisFAQ listdoes.</p><p>The other easy-and-hard aspect of the question,of course,is simply <em>finding</em>which sitehas what you're looking for.There is a tremendous amount of work going on in this area,and there are probably new indexing services springing up every day.One of the first was ``archie'',and of course there are a number ofhigh-profile commercial net indexing and searching servicessuch as Alta Vista, Excite, and Yahoo.</p><p>If you have access to Usenet, seethe regular postings in the comp.sources.unixand comp.sources.miscnewsgroups,which describethe archiving policiesfor those groupsand how toaccess their archives,two of which are<a href="ftp://gatekeeper.dec.com/pub/usenet/comp.sources.unix/"><TT>ftp://gatekeeper.dec.com/pub/usenet/comp.sources.unix/</TT></a>and<a href="ftp://ftp.uu.net/usenet/comp.sources.unix/"><TT>ftp://ftp.uu.net/usenet/comp.sources.unix/</TT></a>.Thecomp.archives newsgroup contains numerousannouncements of anonymous ftp availability of various items.Finally, thenewsgroup comp.sources.wantedis generally a moreappropriate place to post queries for source availability,but check<em>its</em>FAQ list, ``How to find sources,''before posting there.</p><p>See alsoquestions <a href="../fp/mathsrc.html">14.12</a>, <a href="tutsources.html">18.9b</a>, <a href="stdlibsrc.html">18.13</a>, and <a href="miscsrcs.html">18.15c</a>.</p><!-- aend 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