--- loncom/lond	2004/08/27 18:34:31	1.243
+++ loncom/lond	2004/08/29 04:12:18	1.245
@@ -2,7 +2,7 @@
 # The LearningOnline Network
 # lond "LON Daemon" Server (port "LOND" 5663)
 #
-# $Id: lond,v 1.243 2004/08/27 18:34:31 banghart Exp $
+# $Id: lond,v 1.245 2004/08/29 04:12:18 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -57,7 +57,7 @@ my $DEBUG = 0;		       # Non zero to ena
 my $status='';
 my $lastlog='';
 
-my $VERSION='$Revision: 1.243 $'; #' stupid emacs
+my $VERSION='$Revision: 1.245 $'; #' stupid emacs
 my $remoteVERSION;
 my $currenthostid="default";
 my $currentdomainid;
@@ -1299,20 +1299,21 @@ sub push_file_handler {
 # Side Effects:
 #   The reply is written to  $client.
 #
+
 sub du_handler {
     my ($cmd, $ududir, $client) = @_;
-    my $userinput = "$cmd:$ududir";
-    my $obs;
-    my $rights;
-    my $uduout='';
-    my $udufn;
-    print $client "from lond not yet\n";
+    if ($ududir=~/\.\./ || $ududir!~m|^/home/httpd/|) {
+	&Failure($client,"refused\n","$cmd:$ududir");
+	return 1;
+    }
+    my $duout = `du -ks $ududir 2>/dev/null`;
+    $duout=~s/[^\d]//g; #preserve only the numbers
+    &Reply($client,"$duout\n","$cmd:$ududir");
     return 1;
 }
 &register_handler("du", \&du_handler, 0, 1, 0);
 
 
-
 #
 #   ls  - list the contents of a directory.  For each file in the
 #    selected directory the filename followed by the full output of