+ # now check the call over
+ next if DXCluster->get($call); # we already have this
+
+ # check for sane parameters
+ next if $ver < 5000; # only works with version 5 software
+ next if length $call < 3; # min 3 letter callsigns
+ DXNode->new($self, $call, $confmode, $here, $ver);
+
+ # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
+ my $mref = DXMsg::get_busy($call);
+ $mref->stop_msg($self) if $mref;
+
+ # add this station to the user database, if required
+ my $user = DXUser->get_current($call);
+ $user = DXUser->new($call) if !$user;
+ $user->node($call) if !$user->node;
+ $user->sort('A');
+ $user->put;
+ }
+
+ # queue up any messages
+ DXMsg::queue_msg() if $self->state eq 'normal';
+ last SWITCH;
+ }
+
+ if ($pcno == 20) { # send local configuration
+ $self->send_local_config();
+ $self->send(pc22());
+ $self->state('normal');
+
+ # queue mail
+ DXMsg::queue_msg();
+ return;
+ }
+
+ if ($pcno == 21) { # delete a cluster from the list
+ my $call = uc $field[1];
+ if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
+ my $ref = DXCluster->get($call);
+ $ref->del() if $ref;
+ }
+ last SWITCH;
+ }
+
+ if ($pcno == 22) {last SWITCH;}
+
+ if ($pcno == 23 || $pcno == 27) { # WWV info
+ Geomag::update(@field[1..$#field]);
+ last SWITCH;
+ }
+
+ if ($pcno == 24) { # set here status
+ my $call = uc $field[1];
+ $call =~ s/-\d+//o;
+ my $ref = DXCluster->get($call);
+ $ref->here($field[2]) if $ref;
+ last SWITCH;
+ }
+
+ if ($pcno == 25) {last SWITCH;}
+
+ if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42) { # mail/file handling
+ DXMsg::process($self, $line);
+ return;
+ }
+
+ if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
+ if ($field[1] eq $main::mycall) {
+ my $ref = DXUser->get_current($field[2]);
+ Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
+ if ($ref->{priv}) { # you have to have SOME privilege, the commands have further filtering
+ $self->{remotecmd} = 1; # for the benefit of any command that needs to know
+ my @in = (DXCommandmode::run_cmd($self, $field[3]));
+ for (@in) {
+ s/\s*$//og;
+ $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
+ Log('rcmd', 'out', $field[2], $_);
+ }
+ delete $self->{remotecmd};
+ }
+ } else {
+ route($field[1], $line);
+ }
+ return;
+ }
+
+ if ($pcno == 35) { # remote command replies
+ if ($field[1] eq $main::mycall) {
+ my $s = DXChannel::get($main::myalias);
+ my @ref = grep { $_->pc34to eq $field[2] } DXChannel::get_all(); # people that have rcmded someone
+ push @ref, $s if $s;
+
+ foreach (@ref) {
+ $_->send($field[3]);
+ }
+ } else {
+ route($field[1], $line);
+ }
+ return;
+ }
+
+ if ($pcno == 37) {last SWITCH;}
+
+ if ($pcno == 38) { # node connected list from neighbour
+ return;
+ }
+
+ if ($pcno == 39) { # incoming disconnect
+ $self->disconnect();
+ return;
+ }
+
+ if ($pcno == 41) { # user info
+ # add this station to the user database, if required
+ $field[1] =~ s/-\d+$//o;
+ my $user = DXUser->get_current($field[1]);
+ $user = DXUser->new($field[1]) if !$user;
+
+ if ($field[2] == 1) {
+ $user->name($field[3]);
+ } elsif ($field[2] == 2) {
+ $user->qth($field[3]);
+ } elsif ($field[2] == 3) {
+ my ($latd, $latm, $latl, $longd, $longm, $longl) = split /\s+/, $field[3];
+ $longd += ($longm/60);
+ $longd = 0-$longd if (uc $longl) eq 'W';
+ $user->long($longd);
+ $latd += ($latm/60);
+ $latd = 0-$latd if (uc $latl) eq 'S';
+ $user->lat($latd);
+ } elsif ($field[2] == 4) {
+ $user->node($field[3]);
+ }
+ $user->put;
+ last SWITCH;
+ }
+ if ($pcno == 43) {last SWITCH;}
+ if ($pcno == 44) {last SWITCH;}
+ if ($pcno == 45) {last SWITCH;}
+ if ($pcno == 46) {last SWITCH;}
+ if ($pcno == 47) {last SWITCH;}
+ if ($pcno == 48) {last SWITCH;}
+ if ($pcno == 49) {last SWITCH;}
+
+ if ($pcno == 50) { # keep alive/user list
+ my $ref = DXCluster->get($field[1]);
+ $ref->update_users($field[2]) if $ref;
+ last SWITCH;
+ }
+
+ if ($pcno == 51) { # incoming ping requests/answers
+
+ # is it for us?
+ if ($field[1] eq $main::mycall) {
+ my $flag = $field[3];
+ $flag ^= 1;
+ $self->send($self->pc51($field[2], $field[1], $flag));
+ } else {
+ # route down an appropriate thingy
+ route($field[1], $line);
+ }
+ return;
+ }
+ }
+
+ # if get here then rebroadcast the thing with its Hop count decremented (if
+ # there is one). If it has a hop count and it decrements to zero then don't
+ # rebroadcast it.
+ #
+ # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
+ # REBROADCAST!!!!
+ #
+
+ my $hops;
+ if (($hops) = $line =~ /H(\d+)\^\~?$/o) {
+ my $newhops = $hops - 1;
+ if ($newhops > 0) {
+ $line =~ s/\^H$hops(\^\~?)$/\^H$newhops$1/; # change the hop count
+ broadcast_ak1a($line, $self); # send it to everyone but me
+ }
+ }