diff --git a/clusterd/clusterd b/clusterd/clusterd
index c3db66e..ff50cfd 100755
--- a/clusterd/clusterd
+++ b/clusterd/clusterd
@@ -1,41 +1,5 @@
 #! /usr/local/system/perl/bin/perl
 
-use warnings;
-use strict;
-
-use POSIX;
-use IO::Pipe;
-use Digest::MD5;
-use Storable;
-
-sub encode {
-    return Storable::nfreeze([@_]);
-}
-
-sub sign {
-    my ($password,$data)=@_;
-    return Digest::MD5::md5($password.$data).$data; # 16 byte prefix
-}
-
-sub check_sign { # signed-data -> undef or signed-data -> data
-    my ($password,$data)=@_;
-    length $data>16 or return undef;
-    my $rx_digest=substr($data,0,16);
-    my $signature=Digest::MD5::md5($password.substr($data,16));
-    $rx_digest eq $signature or return undef;
-    return substr($data,16);
-}
-
-sub decode {
-    my ($data)=@_;
-    my $msg;
-    eval {
-        $msg=Storable::thaw($data);
-    };
-    $@ and return undef;
-    return @$msg;
-}
-
 #-------------------------------------
 package Donald::FileInfo;
 
@@ -657,11 +621,13 @@ sub init {
 
 #------------------------------------------------------------------------
 package main;
+use warnings;
 use strict;
 use IO::File;
 use Sys::Syslog;
 use IO::Socket::INET;
 use Data::Dumper;
+use Digest::MD5;
 
 our $UDP_MAX=1472;
 our $UDP_PORT=234;
@@ -702,6 +668,34 @@ our $CLUSTER_PW_TIMESTAMP=0;
 
 $ENV{'PATH'} = '/usr/local/bin:/sbin:/usr/sbin:/bin'.($ENV{PATH}?':'.$ENV{PATH}:''); # for ps , tar (gnu!)
 
+sub encode {
+    return Storable::nfreeze([@_]);
+}
+
+sub sign {
+    my ($password,$data)=@_;
+    return Digest::MD5::md5($password.$data).$data; # 16 byte prefix
+}
+
+sub check_sign { # signed-data -> undef or signed-data -> data
+    my ($password,$data)=@_;
+    length $data>16 or return undef;
+    my $rx_digest=substr($data,0,16);
+    my $signature=Digest::MD5::md5($password.substr($data,16));
+    $rx_digest eq $signature or return undef;
+    return substr($data,16);
+}
+
+sub decode {
+    my ($data)=@_;
+    my $msg;
+    eval {
+        $msg=Storable::thaw($data);
+    };
+    $@ and return undef;
+    return @$msg;
+}
+
 #---------------------------------------------------------- UDP
 
 our ($udp_peer_addr,$udp_peer_port); # ('141.14.12.12',1234)