prevent merges to myself

[spider.git] / perl / DXProt.pm

diff --git a/perl/DXProt.pm b/perl/DXProt.pm
index d9e59c4937bc9211cc8425a804760879dfba6aa6..4349b87c506e4fb5a058a1b6874a803e34de92c3 100644 (file)
--- a/perl/DXProt.pm
+++ b/perl/DXProt.pm
@@ -31,7 +31,7 @@ use strict;
 use vars qw($me $pc11_max_age $pc11_dup_age $pc23_dup_age 
                        %spotdup %wwvdup $last_hour %pings %rcmds 
                        %nodehops @baddx $baddxfn $pc12_dup_age
-                       %anndup);
+                       %anndup $allowzero);
 
 $me = undef;                                   # the channel id for this cluster
 $pc11_max_age = 1*3600;                        # the maximum age for an incoming 'real-time' pc11
@@ -371,9 +371,17 @@ sub normal
                }
                
                if ($pcno == 18) {              # link request
+                       $self->state('init');   
+
+                       # first clear out any nodes on this dxchannel
+                       my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
+                       foreach my $node (@gonenodes) {
+                               next if $node->dxchan == $DXProt::me;
+                               broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate}; 
+                               $node->del();
+                       }
                        $self->send_local_config();
                        $self->send(pc20());
-                       $self->state('init');   
                        return;             # we don't pass these on
                }
                
@@ -385,6 +393,8 @@ sub normal
                                my $call = uc $field[$i+1];
                                my $confmode = $field[$i+2];
                                my $ver = $field[$i+3];
+
+                               $ver = 5400 if !$ver && $allowzero;
                                
                                # now check the call over
                                my $node = DXCluster->get_exact($call);
@@ -535,6 +545,10 @@ sub normal
                                route($field[1], $line);
                                return;
                        }
+                       if ($field[2] eq $main::mycall) {
+                               dbg('chan', "Trying to merge to myself, ignored");
+                               return;
+                       }
 
                        Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
                        
@@ -661,6 +675,7 @@ sub normal
                if ($pcno == 50) {              # keep alive/user list
                        my $node = DXCluster->get_exact($field[1]);
                        if ($node) {
+                               return unless $node->isa('DXNode');
                                return unless $node->dxchan == $self;
                                $node->update_users($field[2]);
                        }