--- loncom/lonnet/perl/lonnet.pm	2005/06/17 21:04:40	1.642
+++ loncom/lonnet/perl/lonnet.pm	2005/06/19 00:41:33	1.643
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.642 2005/06/17 21:04:40 albertel Exp $
+# $Id: lonnet.pm,v 1.643 2005/06/19 00:41:33 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -2968,9 +2968,12 @@ sub allowed {
 
 # If this is generating or modifying users, exit with special codes
 
-    if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:'=~/\:\Q$priv\E\:/) {
-	if ($priv eq 'cca') {
+    if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
+	if (($priv eq 'cca') || ($priv eq 'caa')) {
 	    my ($audom,$auname)=split('/',$uri);
+# no author name given, so this just checks on the general right to make a co-author in this domain
+	    unless ($auname) { return $thisallowed; }
+# an author name is given, so we are about to actually make a co-author for a certain account
 	    if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
 		(($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
 		 ($audom ne $env{'request.role.domain'}))) { return ''; }