--- projects/cms/source/host/ihost-perl/ihost.pl	2001/02/28 12:25:48	1.21
+++ projects/cms/source/host/ihost-perl/ihost.pl	2001/03/01 18:53:42	1.23
@@ -10,7 +10,7 @@
 #  - pjm2@ukc.ac.uk
 #
 # $Author: pjm2 $
-# $Id: ihost.pl,v 1.21 2001/02/28 12:25:48 pjm2 Exp $
+# $Id: ihost.pl,v 1.23 2001/03/01 18:53:42 pjm2 Exp $
 #------------------------------------------------------------
 
 $| = 1;
@@ -304,6 +304,7 @@ sub send_tcp_heartbeat() {
 
     print $sock "HEARTBEAT\n";
     $response = <$sock>;
+    return if (!defined $response);
     chop $response;
     if (!$response eq "OK") {
         close($sock);
@@ -313,6 +314,7 @@ sub send_tcp_heartbeat() {
     
     print $sock "CONFIG\n";
     $response = <$sock>;
+    return if (!defined $response);
     chop $response;
     if (!$response eq "OK") {
         close($sock);
@@ -322,6 +324,7 @@ sub send_tcp_heartbeat() {
 
     print $sock "$file_list\n";
     $response = <$sock>;
+    return if (!defined $response);
     chop $response;
     if (!$response eq "OK") {
         close($sock);
@@ -331,6 +334,7 @@ sub send_tcp_heartbeat() {
     
     print $sock "$last_modified\n";
     $response = <$sock>;
+    return if (!defined $response);
     chop $response;
     if ($response eq "ERROR") {
         close($sock);
@@ -345,6 +349,7 @@ sub send_tcp_heartbeat() {
     
     print $sock "ENDHEARTBEAT\n";
     $response = <$sock>;
+    return if (!defined $response);
     chop $response;
     if (!$response eq "OK") {
         close($sock);