/*
	CloakShare
	
	By Eric Traut & Dan Clifford
	June 17, 1993
	
	CloakShare is a small hack which cloaks the presence of your computer
	from novice users on a network. We wrote it when we were at Stanford
	University and secretly hooked into the campus network. We wanted to
	be able to run file sharing to swap files, but we didnt want to show
	up in other peoples Choosers. 
	
	The INIT works by patching PBControl. When the patch sees anyone
	performing an NBP name register, it compares the name to AFPServer.
	If the name matches, the patch changes it slightly (changes is it
	AFPSrver) and continues with the registration. 
	
	When someone performs an NBP name lookup, the patch once again compares
	the name against AFPServer. If it matches, an NBP lookup is done on a
	string with a wildcard character (AFPSrver). 
	
	The resulting behavour is such that everyone running CloakShare can
	see ALL file servers (even those that are cloaked), but network users
	without CloakShare continue to look for just AFPServers and dont 
	see the cloaked servers.

	Known Problems: 
	Only AppleTalk 2.0 and greater know about the wildcard character for
	NBP lookups. 
	
	People with network sniffers or a little more knowledge of the network
	will still be able to detect the presence of a Cloaked file server.
	
	Distribution:
	Feel free to modify this code in any way you want. If you distribute 
	the code, please include this ReadMe file. The authors are not
	responsible for any damage, destruction, chaos, etc. caused by this
	extension. Use at your own risk.

*/





