Source code
-----------

The web server used for developing the UW WWW service proposal is the
stock NCSA v1.3 server.  The source for this server is found here:

% ftp ftp.ncsa.uiuc.edu
...
ftp> cd /Web/httpd/Unix/ncsa_httpd
250-This directory contains NCSA's public domain HTTP server. The current
250-release is 1.3.  Comments to httpd@ncsa.uiuc.edu.
250-
250-All documentation is online in the World Wide Web under URL 
250-http://hoohoo.ncsa.uiuc.edu/
250-
250-
250 CWD command successful.
ftp> cd httpd_1.3
250 CWD command successful.
ftp> pwd
257 "/Web/httpd/Unix/ncsa_httpd/httpd_1.3" is current directory.
...

Additions to standard server sources
------------------------------------

The server was set up in the standard directory /usr/local/etc/httpd.
Added to the cgi-src directory where the files:

	imagemap.patch
	userexec.c
	userexec.perl

...and the Makefile rules were modified to include:

	../cgi-bin/userexec.perl: userexec.perl
        	cp userexec.perl ../cgi-bin

	userexec: userexec.c ../cgi-bin/userexec.perl
        	$(CC) userexec.c -o ../cgi-bin/userexec
        	chmod u+s ../cgi-bin/userexec

The "patch" utility is used to modify the default imagemap.c file from
the file imagemap.patch.

Configuration
-------------

The server was configured to disallow script execution from outside
the standard server hierarchy, so that only the server's cgi-bin
directory, with the modified imagemap and userexec programs, would
work for forms processing.  This is done by using the following rules
in the