pam_xauth:
	Forward xauth cookies from user to user, normally used by su, sudo, or
	userhelper.

	Primitive access control is provided by ~/.xauth/export in the invoking
	user's home directory and ~/.xauth/import in the target user's home
	directory.

	If a user has a ~/.xauth/import file, the user will only receive cookies
	from users listed in the file.  If there is no ~/.xauth/import file,
	the user will accept cookies from any other user.

	If a user has a .xauth/export file, the user will only forward cookies
	to users listed in the file.  If there is no ~/.xauth/export file, and
	the invoking user is not "root", the user will forward cookies to
	any other user.  If there is no ~/.xauth/export file, and the invoking
	user is "root", the user will NOT forward cookies to other users.

	Both the import and export files can be empty, signifying that no users
	are allowed.

RECOGNIZED ARGUMENTS:
	debug		write debugging messages to syslog
	xauthpath=	the path to the xauth program, by default
			/usr/X11R6/bin/xauth
	systemuser=	highest user id assigned to system users, defaults
			to 499


MODULE SERVICES PROVIDED:
	session         open session copies xauth cookie to new user
			close session deletes copied xauth cookie

AUTHOR:
	Nalin Dahyabhai <nalin@redhat.com>, based on original version by
	Michael K. Johnson <johnsonm@redhat.com>
