--- loncom/lond	2007/04/03 00:49:55	1.368
+++ loncom/lond	2007/06/18 22:49:52	1.375
@@ -2,7 +2,7 @@
 # The LearningOnline Network
 # lond "LON Daemon" Server (port "LOND" 5663)
 #
-# $Id: lond,v 1.368 2007/04/03 00:49:55 albertel Exp $
+# $Id: lond,v 1.375 2007/06/18 22:49:52 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -59,7 +59,7 @@ my $DEBUG = 0;		       # Non zero to ena
 my $status='';
 my $lastlog='';
 
-my $VERSION='$Revision: 1.368 $'; #' stupid emacs
+my $VERSION='$Revision: 1.375 $'; #' stupid emacs
 my $remoteVERSION;
 my $currenthostid="default";
 my $currentdomainid;
@@ -69,7 +69,6 @@ my $clientip;			# IP address of client.
 my $clientname;			# LonCAPA name of client.
 
 my $server;
-my $thisserver;			# DNS of us.
 
 my $keymode;
 
@@ -172,19 +171,16 @@ sub ResetStatistics {
 #   $Socket      - Socket open on client.
 #   $initcmd     - The full text of the init command.
 #
-# Implicit inputs:
-#    $thisserver - Our DNS name.
-#
 # Returns:
 #     IDEA session key on success.
 #     undef on failure.
 #
 sub LocalConnection {
     my ($Socket, $initcmd) = @_;
-    Debug("Attempting local connection: $initcmd client: $clientip me: $thisserver");
+    Debug("Attempting local connection: $initcmd client: $clientip");
     if($clientip ne "127.0.0.1") {
 	&logthis('<font color="red"> LocalConnection rejecting non local: '
-		 ."$clientip ne $thisserver </font>");
+		 ."$clientip ne 127.0.0.1 </font>");
 	close $Socket;
 	return undef;
     }  else {
@@ -4619,8 +4615,12 @@ sub inst_usertypes_handler {
     my ($cmd, $domain, $client) = @_;
     my $res;
     my $userinput = $cmd.":".$domain; # For logging purposes.
-    my (%typeshash,@order);  
-    if (&localenroll::inst_usertypes($domain,\%typeshash,\@order) eq 'ok') {
+    my (%typeshash,@order,$result);
+    eval {
+	local($SIG{__DIE__})='DEFAULT';
+	$result=&localenroll::inst_usertypes($domain,\%typeshash,\@order);
+    };
+    if ($result eq 'ok') {
         if (keys(%typeshash) > 0) {
             foreach my $key (keys(%typeshash)) {
                 $res.=&escape($key).'='.&escape($typeshash{$key}).'&';
@@ -4903,7 +4903,7 @@ sub catchexception {
     $SIG{__DIE__}='DEFAULT';
     &status("Catching exception");
     &logthis("<font color='red'>CRITICAL: "
-     ."ABNORMAL EXIT. Child $$ for server $thisserver died through "
+     ."ABNORMAL EXIT. Child $$ for server ".$perlvar{'lonHostID'}." died through "
      ."a crash with this error msg->[$error]</font>");
     &logthis('Famous last words: '.$status.' - '.$lastlog);
     if ($client) { print $client "error: $error\n"; }
@@ -5044,12 +5044,12 @@ sub UpdateHosts {
     #  either dropped or changed hosts.  Note that the re-read of the table
     #  will take care of new and changed hosts as connections come into being.
 
-    #FIXME need a way to tell lonnet that it needs to reset host
-    #cached host info
+    &Apache::lonnet::reset_hosts_info();
 
     foreach my $child (keys(%children)) {
 	my $childip = $children{$child};
-	if (defined(&Apache::lonnet::get_hosts_from_ip($childip))) {
+	if ($childip ne '127.0.0.1'
+	    && !defined(&Apache::lonnet::get_hosts_from_ip($childip))) {
 	    logthis('<font color="blue"> UpdateHosts killing child '
 		    ." $child for ip $childip </font>");
 	    kill('INT', $child);
@@ -5367,8 +5367,6 @@ sub make_new_child {
 # -----------------------------------------------------------------------------
 	# see if we know client and 'check' for spoof IP by ineffective challenge
 
-	ReadManagerTable;	# May also be a manager!!
-	
 	my $outsideip=$clientip;
 	if ($clientip eq '127.0.0.1') {
 	    $outsideip=&Apache::lonnet::get_host_ip($perlvar{'lonHostID'});
@@ -5488,7 +5486,7 @@ sub make_new_child {
 # ---------------- New known client connecting, could mean machine online again
 	    if (&Apache::lonnet::get_host_ip($currenthostid) ne $clientip 
 		&& $clientip ne '127.0.0.1') {
-		&Apache::lonnet::reconlonc();
+		&Apache::lonnet::reconlonc($clientname);
 	    }
 	    &logthis("<font color='green'>Established connection: $clientname</font>");
 	    &status('Will listen to '.$clientname);
@@ -6017,7 +6015,7 @@ sub subscribe {
                 # the metadata
 		unless ($fname=~/\.meta$/) { &unsub("$fname.meta",$clientip); }
 		$fname=~s/\/home\/httpd\/html\/res/raw/;
-		$fname="http://$thisserver/".$fname;
+		$fname="http://".&Apache::lonnet::hostname($perlvar{'lonHostID'})."/".$fname;
 		$result="$fname\n";
 	    }
 	} else {
@@ -6174,7 +6172,7 @@ sub sethost {
     if (&Apache::lonnet::get_host_ip($perlvar{'lonHostID'}) 
 	eq &Apache::lonnet::get_host_ip($hostid)) {
 	$currenthostid  =$hostid;
-	$currentdomainid=&Apache::lonnet::domain($hostid);
+	$currentdomainid=&Apache::lonnet::host_domain($hostid);
 	&logthis("Setting hostid to $hostid, and domain to $currentdomainid");
     } else {
 	&logthis("Requested host id $hostid not an alias of ".