--- loncom/lonnet/perl/lonnet.pm	2007/04/04 00:07:07	1.862
+++ loncom/lonnet/perl/lonnet.pm	2007/04/04 00:48:23	1.864
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.862 2007/04/04 00:07:07 albertel Exp $
+# $Id: lonnet.pm,v 1.864 2007/04/04 00:48:23 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -671,61 +671,6 @@ sub homeserver {
     return 'no_host';
 }
 
-# ---------------------- Get domain configuration for a domain
-sub get_domainconf {
-    my ($udom) = @_;
-    my $cachetime=1800;
-    my ($result,$cached)=&is_cached_new('domainconfig',$udom);
-    if (defined($cached)) { return %{$result}; }
-
-    if ($udom eq '') {
-        $udom = &Apache::loncommon::determinedomain();
-    }
-    my %domconfig = &get_dom('configuration',['login','rolecolors'],$udom);
-    my %designhash;
-    if (keys(%domconfig) > 0) {
-        if (ref($domconfig{'login'}) eq 'HASH') {
-            foreach my $key (keys(%{$domconfig{'login'}})) {
-                $designhash{$udom.'.login.'.$key}=$domconfig{'login'}{$key};
-            }
-        }
-        if (ref($domconfig{'rolecolors'}) eq 'HASH') {
-            foreach my $role (keys(%{$domconfig{'rolecolors'}})) {
-                if (ref($domconfig{'rolecolors'}{$role}) eq 'HASH') {
-                    foreach my $item (keys(%{$domconfig{'rolecolors'}{$role}})) {
-                        $designhash{$udom.'.'.$role.'.'.$item}=$domconfig{'rolecolors'}{$role}{$item};
-                    }
-                }
-            }
-        }
-    } else {
-        my $designdir=$perlvar{'lonTabDir'}.'/lonDomColors';
-        my $designfile =  $designdir.'/'.$udom.'.tab';
-        if (-e $designfile) {
-            if ( open (my $fh,"<$designfile") ) {
-                while (my $line = <$fh>) {
-                    next if ($line =~ /^\#/);
-                    chomp($line);
-                    my ($key,$val)=(split(/\=/,$line));
-                    if ($val) { $designhash{$udom.'.'.$key}=$val; }
-                }
-                close($fh);
-            }
-        }
-        if (-e '/home/httpd/html/adm/lonDomLogos/'.$udom.'.gif') {
-            $designhash{$udom.'.login.domlogo'} = 
-                &lonhttpdurl("/adm/lonDomLogos/$udom.gif"); 
-        }
-    }
-    &do_cache_new('domainconfig',$udom,\%designhash,$cachetime);
-    return %designhash;
-}
-
-sub devalidate_domconfig_cache {
-    my ($udom)=@_;
-    &devalidate_cache_new('domainconfig',$udom);
-}
-
 # ------------------------------------- Find the usernames behind a list of IDs
 
 sub idget {
@@ -7740,7 +7685,12 @@ sub get_dns {
 	    $domain{$name} = \%this_domain;
 	}
     }
-    
+
+    sub reset_domain_info {
+	undef($loaded);
+	undef(%domain);
+    }
+
     sub load_domain_tab {
 	&get_dns('/adm/dns/domain',\&parse_domain_tab);
 	my $fh;
@@ -7788,6 +7738,15 @@ sub get_dns {
 	    }
 	}
     }
+    
+    sub reset_hosts_info {
+	&reset_domain_info();
+	&reset_hosts_ip_info();
+	undef(%hostname);
+	undef(%hostdom);
+	undef(%libserv);
+	undef($loaded);
+    }
 
     sub load_hosts_tab {
 	&get_dns('/adm/dns/hosts',\&parse_hosts_tab);
@@ -7874,6 +7833,12 @@ sub get_dns {
 	}
 	return;
     }
+    
+    sub reset_hosts_ip_info {
+	undef(%iphost);
+	undef(%name_to_ip);
+	undef(%lonid_to_ip);
+    }
 
     sub get_host_ip {
 	my ($lonid) = @_;
@@ -7893,7 +7858,7 @@ sub get_dns {
 	if (%iphost) { return %iphost; }
 	my %hostname = &all_hostnames();
 	foreach my $id (keys(%hostname)) {
-	    my $name=$hostname{$id};
+	    my $name=&hostname($id);
 	    my $ip;
 	    if (!exists($name_to_ip{$name})) {
 		$ip = gethostbyname($name);