+my $msgid = 1;
+
+sub frame
+{
+ my $sort = shift;
+ my $to = shift || "*";
+ my $ht;
+
+ $ht = sprintf "%X", $msgid;
+ my $line = join '^', "QX$sort", $to, $main::mycall, $ht, @_;
+ my $cs = sprintf "%02X", unpack("%32C*", $line) & 255;
+ $msgid = 1 if ++$msgid > 0xffff;
+ return "$line^$cs";
+}
+
+sub send_frame
+{
+ my $self = shift;
+ my $origin = shift || $main::me;
+ for (@_) {
+ $self->send(frame('X', undef, $origin == $main::me || $origin->is_user ? '' : $origin->call, $_));
+ }
+}
+
+sub handleI
+{
+ my $self = shift;
+
+ my @f = split /\^/, $_[3];
+ if ($self->user->passphrase && $f[7] && $f[8]) {
+ my $inv = Verify->new($f[7]);
+ unless ($inv->verify($f[8], $main::me->user->passphrase, $main::mycall, $self->call)) {
+ $self->sendnow('D','Sorry...');
+ $self->disconnect;
+ }
+ $self->{verified} = 1;
+ } else {
+ $self->{verified} = 0;
+ }
+ if ($self->{outbound}) {
+ $self->send($self->genI);
+ }
+ if ($self->{sort} ne 'S' && $f[4] eq 'DXSpider') {
+ $self->{user}->{sort} = $self->{sort} = 'S';
+ $self->{user}->{priv} = $self->{priv} = 1 unless $self->{priv};
+ }
+ $self->{version} = $f[5];
+ $self->{build} = $f[6];
+ $self->state('init1');
+ $self->{lastping} = 0;
+}
+
+sub genI
+{
+ my $self = shift;
+ my @out = ('I', $self->call, "DXSpider", ($main::version + 53) * 100, $main::build);
+ if (my $pass = $self->user->passphrase) {
+ my $inp = Verify->new;
+ push @out, $inp->challenge, $inp->response($pass, $self->call, $main::mycall);
+ }
+ return frame(@out);
+}
+
+sub handleR