--- loncom/lonnet/perl/lonnet.pm	2005/02/05 22:20:56	1.595
+++ loncom/lonnet/perl/lonnet.pm	2005/02/10 22:26:38	1.598
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.595 2005/02/05 22:20:56 albertel Exp $
+# $Id: lonnet.pm,v 1.598 2005/02/10 22:26:38 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -35,7 +35,7 @@ use HTTP::Headers;
 use HTTP::Date;
 # use Date::Parse;
 use vars 
-qw(%perlvar %hostname %homecache %badServerCache %spareid %hostdom 
+qw(%perlvar %hostname %homecache %badServerCache %iphost %spareid %hostdom 
    %libserv %pr %prp %metacache %packagetab %titlecache %courseresversioncache %resversioncache
    %courselogs %accesshash %userrolehash $processmarker $dumpcount 
    %coursedombuf %coursenumbuf %coursehombuf %coursedescrbuf %courseinstcodebuf %courseownerbuf %courseresdatacache 
@@ -5683,6 +5683,7 @@ BEGIN {
        next if ($configline =~ /^(\#|\s*$)/);
        chomp($configline);
        my ($id,$domain,$role,$name)=split(/:/,$configline);
+       $name=~s/\s//g;
        if ($id && $domain && $role && $name) {
 	 $hostname{$id}=$name;
 	 $hostdom{$id}=$domain;
@@ -5692,6 +5693,21 @@ BEGIN {
     close($config);
 }
 
+sub get_iphost {
+    if (%iphost) { return %iphost; }
+    foreach my $id (keys(%hostname)) {
+	my $name=$hostname{$id};
+	my $ip = gethostbyname($name);
+	if (!$ip || length($ip) ne 4) {
+	    &logthis("Skipping host $id name $name no IP found\n");
+	    next;
+	}
+	$ip=inet_ntoa($ip);
+	push(@{$iphost{$ip}},$id);
+    }
+    return %iphost;
+}
+
 # ------------------------------------------------------ Read spare server file
 {
     open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");