3 # This module impliments the protocal mode for a dx cluster
5 # Copyright (c) 1998 Dirk Koopman G1TLH
31 use vars qw($me $pc11_max_age $pc11_dup_age $pc23_dup_age
32 %spotdup %wwvdup $last_hour %pings %rcmds
33 %nodehops @baddx $baddxfn $pc12_dup_age
36 $me = undef; # the channel id for this cluster
37 $pc11_max_age = 1*3600; # the maximum age for an incoming 'real-time' pc11
38 $pc11_dup_age = 24*3600; # the maximum time to keep the spot dup list for
39 $pc23_dup_age = 24*3600; # the maximum time to keep the wwv dup list for
40 $pc12_dup_age = 24*3600; # the maximum time to keep the ann dup list for
41 %spotdup = (); # the pc11 and 26 dup hash
42 %wwvdup = (); # the pc23 and 27 dup hash
43 %anndup = (); # the PC12 dup hash
44 $last_hour = time; # last time I did an hourly periodic update
45 %pings = (); # outstanding ping requests outbound
46 %rcmds = (); # outstanding rcmd requests outbound
47 %nodehops = (); # node specific hop control
48 @baddx = (); # list of illegal spotted callsigns
50 $baddxfn = "$main::data/baddx.pl";
54 my $user = DXUser->get($main::mycall);
55 $DXProt::myprot_version += $main::version*100;
56 $me = DXProt->new($main::mycall, 0, $user);
58 $me->{state} = "indifferent";
59 do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
61 # $me->{sort} = 'M'; # M for me
63 # now prime the spot duplicates file with today's and yesterday's data
64 my @today = Julian::unixtoj(time);
65 my @spots = Spot::readfile(@today);
66 @today = Julian::sub(@today, 1);
67 push @spots, Spot::readfile(@today);
69 my $dupkey = "$_->[0]$_->[1]$_->[2]$_->[3]$_->[4]";
70 $spotdup{$dupkey} = $_->[2];
73 # now prime the wwv duplicates file with just this month's data
74 my @wwv = Geomag::readfile(time);
76 my $dupkey = "$_->[1].$_->[2]$_->[3]$_->[4]";
77 $wwvdup{$dupkey} = $_->[1];
81 do "$baddxfn" if -e "$baddxfn";
86 # obtain a new connection this is derived from dxchannel
91 my $self = DXChannel::alloc(@_);
92 $self->{'sort'} = 'A'; # in absence of how to find out what sort of an object I am
96 # this is how a pc connection starts (for an incoming connection)
97 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
98 # all the crap that comes between).
101 my ($self, $line, $sort) = @_;
102 my $call = $self->{call};
103 my $user = $self->{user};
105 # remember type of connection
106 $self->{consort} = $line;
107 $self->{outbound} = $sort eq 'O';
108 $self->{priv} = $user->priv;
109 $self->{lang} = $user->lang;
110 $self->{isolate} = $user->{isolate};
111 $self->{consort} = $line; # save the connection type
115 $self->{spotfilter} = Filter::read_in('spots', $call);
116 $self->{wwvfilter} = Filter::read_in('wwv', $call);
117 $self->{annfilter} = Filter::read_in('ann', $call);
120 $self->send_now('B',"0");
122 # send initialisation string
123 if (!$self->{outbound}) {
124 $self->send(pc38()) if DXNode->get_all();
127 $self->state('init');
130 Log('DXProt', "$call connected");
134 # This is the normal pcxx despatcher
138 my ($self, $line) = @_;
139 my @field = split /\^/, $line;
140 pop @field if $field[-1] eq '~';
142 # print join(',', @field), "\n";
144 # ignore any lines that don't start with PC
145 return if !$field[0] =~ /^PC/;
148 my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
150 return if $pcno < 10 || $pcno > 51;
155 $pcr = Local::pcprot($self, $pcno, @field);
157 # dbg('local', "Local::pcprot error $@") if $@;
161 if ($pcno == 10) { # incoming talk
163 # is it for me or one of mine?
164 my $call = ($field[5] gt ' ') ? $field[5] : $field[2];
165 if ($call eq $main::mycall || grep $_ eq $call, get_all_user_calls()) {
168 my $text = unpad($field[3]);
169 Log('talk', $call, $field[1], $field[6], $text);
170 $call = $main::myalias if $call eq $main::mycall;
171 my $ref = DXChannel->get($call);
172 $ref->send("$call de $field[1]: $text") if $ref && $ref->{talk};
174 route($field[2], $line); # relay it on its way
179 if ($pcno == 11 || $pcno == 26) { # dx spot
181 # if this is a 'nodx' node then ignore it
182 last SWITCH if grep $field[7] =~ /^$_/, @DXProt::nodx_node;
184 # convert the date to a unix date
185 my $d = cltounix($field[3], $field[4]);
186 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
187 if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
188 dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
192 # strip off the leading & trailing spaces from the comment
193 my $text = unpad($field[5]);
196 my $spotter = $field[6];
197 $spotter =~ s/-\d+$//o; # strip off the ssid from the spotter
200 my $freq = $field[1] - 0;
201 my $dupkey = "$freq$field[2]$d$text$spotter";
202 if ($spotdup{$dupkey}) {
203 dbg('chan', "Duplicate Spot ignored\n");
207 $spotdup{$dupkey} = $d;
210 if (grep $field[2] eq $_, @baddx) {
211 dbg('chan', "Bad DX spot, ignored");
215 my @spot = Spot::add($freq, $field[2], $d, $text, $spotter, $field[7]);
218 # @spot at this point contains:-
219 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
220 # then spotted itu, spotted cq, spotters itu, spotters cq
221 # you should be able to route on any of these
227 $r = Local::spot($self, @spot);
229 # dbg('local', "Local::spot1 error $@") if $@;
232 # DON'T be silly and send on PC26s!
233 return if $pcno == 26;
235 # send out the filtered spots
236 send_dx_spot($self, $line, @spot) if @spot;
240 if ($pcno == 12) { # announces
241 # announce duplicate checking
242 my $text = uc unpad($field[3]);
243 my $dupkey = $field[1].$field[2].$text.$field[4].$field[6];
244 if ($anndup{$dupkey}) {
245 dbg('chan', "Duplicate Announce ignored\n");
248 $anndup{$dupkey} = $main::systime;
250 # global ann filtering
251 my ($filter, $hops) = Filter::it($self->{annfilter}, @field[1..6], $self->{call} ) if $self->{annfilter};
252 if ($self->{annfilter} && !$filter) {
253 dbg('chan', "Rejected by filter");
257 if ($field[2] eq '*' || $field[2] eq $main::mycall) {
259 # strip leading and trailing stuff
260 my $text = unpad($field[3]);
265 if ($field[4] eq '*') { # sysops
267 @list = map { $_->priv >= 5 ? $_ : () } get_all_users();
268 } elsif ($field[4] gt ' ') { # speciality list handling
269 my ($name) = split /\./, $field[4];
270 $target = "$name"; # put the rest in later (if bothered)
273 if ($field[6] eq '1') {
277 $target = "All" if !$target;
280 broadcast_list("$to$target de $field[1]: $text", 'ann', undef, @list);
282 broadcast_users("$target de $field[1]: $text", 'ann', undef);
284 Log('ann', $target, $field[1], $text);
286 return if $field[2] eq $main::mycall; # it's routed to me
288 route($field[2], $line);
289 return; # only on a routed one
305 if ($pcno == 16) { # add a user
306 my $node = DXCluster->get_exact($field[1]);
307 last SWITCH if !$node; # ignore if havn't seen a PC19 for this one yet
308 last SWITCH unless $node->isa('DXNode');
312 for ($i = 2; $i < $#field; $i++) {
313 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
314 next if !$call || length $call < 3 || length $call > 8;
317 next if DXCluster->get_exact($call); # we already have this (loop?)
319 $confmode = $confmode eq '*';
320 DXNodeuser->new($self, $node, $call, $confmode, $here);
322 # add this station to the user database, if required
323 $call =~ s/-\d+$//o; # remove ssid for users
324 my $user = DXUser->get_current($call);
325 $user = DXUser->new($call) if !$user;
326 $user->homenode($node->call) if !$user->homenode;
327 $user->node($node->call);
328 $user->lastin($main::systime);
332 # queue up any messages (look for privates only)
333 DXMsg::queue_msg(1) if $self->state eq 'normal';
337 if ($pcno == 17) { # remove a user
339 my $ref = DXCluster->get_exact($field[1]);
344 if ($pcno == 18) { # link request
345 $self->send_local_config();
347 $self->state('init');
348 return; # we don't pass these on
351 if ($pcno == 19) { # incoming cluster list
353 for ($i = 1; $i < $#field-1; $i += 4) {
354 my $here = $field[$i];
355 my $call = uc $field[$i+1];
356 my $confmode = $field[$i+2] eq '*';
357 my $ver = $field[$i+3];
359 # now check the call over
360 next if DXCluster->get_exact($call); # we already have this
362 # check for sane parameters
363 next if $ver < 5000; # only works with version 5 software
364 next if length $call < 3; # min 3 letter callsigns
365 DXNode->new($self, $call, $confmode, $here, $ver);
367 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
368 my $mref = DXMsg::get_busy($call);
369 $mref->stop_msg($self) if $mref;
371 # add this station to the user database, if required (don't remove SSID from nodes)
372 my $user = DXUser->get_current($call);
374 $user = DXUser->new($call);
376 $user->priv(1); # I have relented and defaulted nodes
377 $self->{priv} = 1; # to user RCMDs allowed
378 $user->homenode($call);
381 $user->lastin($main::systime);
385 # queue up any messages
386 DXMsg::queue_msg(0) if $self->state eq 'normal';
390 if ($pcno == 20) { # send local configuration
391 $self->send_local_config();
393 $self->state('normal');
401 if ($pcno == 21) { # delete a cluster from the list
402 my $call = uc $field[1];
403 if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
404 my $ref = DXCluster->get_exact($call);
411 $self->state('normal');
418 if ($pcno == 23 || $pcno == 27) { # WWV info
420 my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
421 my $sfi = unpad($field[3]);
422 my $k = unpad($field[4]);
423 my $i = unpad($field[5]);
424 my $dupkey = "$d.$sfi$k$i";
425 if ($wwvdup{$dupkey}) {
426 dbg('chan', "Dup WWV Spot ignored\n");
429 if ($d > $main::systime + 900 || $field[2] < 0 || $field[2] > 23) {
430 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
433 $wwvdup{$dupkey} = $d;
434 $field[6] =~ s/-\d+$//o; # remove spotter's ssid
436 my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..$#field]);
440 $r = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..$#field]);
442 # dbg('local', "Local::wwv2 error $@") if $@;
445 # DON'T be silly and send on PC27s!
446 return if $pcno == 27;
448 # broadcast to the eager users
449 broadcast_users("WWV de $field[7] <$field[2]>: SFI=$sfi, A=$k, K=$i, $field[6]", 'wwv', $wwv );
453 if ($pcno == 24) { # set here status
454 my $call = uc $field[1];
455 my $ref = DXCluster->get_exact($call);
456 $ref->here($field[2]) if $ref;
460 if ($pcno == 25) { # merge request
461 unless ($field[1] eq $main::mycall) {
462 dbg('chan', "merge request to $field[1] from $field[2] ignored");
466 Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
470 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]-1);
473 $self->send(pc26(@{$in}[0..4], $in->[7]));
479 my @in = reverse Geomag::search(0, $field[4], time, 1);
482 $self->send(pc27(@{$in}));
488 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
489 DXMsg::process($self, $line);
493 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
494 if ($field[1] eq $main::mycall) {
495 my $ref = DXUser->get_current($field[2]);
496 my $cref = DXCluster->get($field[2]);
497 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
498 unless ($field[3] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) { # not allowed to relay RCMDS!
499 if ($ref->{priv}) { # you have to have SOME privilege, the commands have further filtering
500 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
501 my @in = (DXCommandmode::run_cmd($self, $field[3]));
504 $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
505 Log('rcmd', 'out', $field[2], $_);
507 delete $self->{remotecmd};
509 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
512 $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
515 route($field[1], $line);
520 if ($pcno == 35) { # remote command replies
521 if ($field[1] eq $main::mycall) {
522 my $s = $rcmds{$field[2]};
524 my $dxchan = DXChannel->get($s->{call});
525 $dxchan->send($field[3]) if $dxchan;
526 delete $rcmds{$field[2]} if !$dxchan;
529 route($field[1], $line);
538 if ($pcno == 38) { # node connected list from neighbour
542 if ($pcno == 39) { # incoming disconnect
547 if ($pcno == 41) { # user info
548 # add this station to the user database, if required
549 my $user = DXUser->get_current($field[1]);
551 # then try without an SSID
552 $field[1] =~ s/-\d+$//o;
553 $user = DXUser->get_current($field[1]);
555 $user = DXUser->new($field[1]) if !$user;
557 if ($field[2] == 1) {
558 $user->name($field[3]);
559 } elsif ($field[2] == 2) {
560 $user->qth($field[3]);
561 } elsif ($field[2] == 3) {
562 my ($lat, $long) = DXBearing::stoll($field[3]);
565 } elsif ($field[2] == 4) {
566 $user->homenode($field[3]);
590 if ($pcno == 50) { # keep alive/user list
591 my $ref = DXCluster->get_exact($field[1]);
592 $ref->update_users($field[2]) if $ref;
596 if ($pcno == 51) { # incoming ping requests/answers
599 if ($field[1] eq $main::mycall) {
600 my $flag = $field[3];
602 $self->send(pc51($field[2], $field[1], '0'));
604 # it's a reply, look in the ping list for this one
605 my $ref = $pings{$field[2]};
608 my $dxchan = DXChannel->get($r->{call});
609 $dxchan->send($dxchan->msg('pingi', $field[2], atime($main::systime), $main::systime - $r->{t})) if $dxchan;
614 # route down an appropriate thingy
615 route($field[1], $line);
621 # if get here then rebroadcast the thing with its Hop count decremented (if
622 # there is one). If it has a hop count and it decrements to zero then don't
625 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
629 if (!$self->{isolate}) {
630 broadcast_ak1a($line, $self); # send it to everyone but me
635 # This is called from inside the main cluster processing loop and is used
636 # for despatching commands that are doing some long processing job
641 my @dxchan = DXChannel->get_all();
644 foreach $dxchan (@dxchan) {
645 next unless $dxchan->is_ak1a();
646 next if $dxchan == $me;
648 # send a pc50 out on this channel
649 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
650 $dxchan->send(pc50());
658 if ($main::systime - 3600 > $last_hour) {
659 $cutoff = $main::systime - $pc11_dup_age;
660 while (($key, $val) = each %spotdup) {
661 delete $spotdup{$key} if $val < $cutoff;
663 $cutoff = $main::systime - $pc23_dup_age;
664 while (($key, $val) = each %wwvdup) {
665 delete $wwvdup{$key} if $val < $cutoff;
667 $cutoff = $main::systime - $pc12_dup_age;
668 while (($key, $val) = each %anndup) {
669 delete $anndup{$key} if $val < $cutoff;
671 $last_hour = $main::systime;
676 # finish up a pc context
681 my $call = $self->call;
682 my $ref = DXCluster->get_exact($call);
684 # unbusy and stop and outgoing mail
685 my $mref = DXMsg::get_busy($call);
686 $mref->stop_msg($self) if $mref;
688 # broadcast to all other nodes that all the nodes connected to via me are gone
689 my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
692 foreach $node (@gonenodes) {
693 next if $node->call eq $call;
694 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
698 # remove outstanding pings
699 delete $pings{$call};
701 # now broadcast to all other ak1a nodes that I have gone
702 broadcast_ak1a(pc21($call, 'Gone.'), $self);
704 Log('DXProt', $call . " Disconnected");
709 # some active measures
715 my @dxchan = DXChannel->get_all();
718 # send it if it isn't the except list and isn't isolated and still has a hop count
719 # taking into account filtering and so on
720 foreach $dxchan (@dxchan) {
722 my ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} ) if $dxchan->{spotfilter};
723 if ($dxchan->is_ak1a) {
724 next if $dxchan == $self;
727 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
729 $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
730 next unless $routeit;
733 $dxchan->send($routeit) if $routeit;
735 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
738 } elsif ($dxchan->is_user && $dxchan->{dx}) {
739 my $buf = Spot::formatb($_[0], $_[1], $_[2], $_[3], $_[4]);
740 $buf .= "\a\a" if $dxchan->{beep};
741 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
742 $dxchan->send($buf) if !$hops || ($hops && $filter);
744 $dxchan->delay($buf) if !$hops || ($hops && $filter);
750 sub send_local_config
759 if ($self->{isolate}) {
760 @localnodes = (DXCluster->get_exact($main::mycall));
762 # create a list of all the nodes that are not connected to this connection
763 # and are not themselves isolated, this to make sure that isolated nodes
764 # don't appear outside of this node
765 @nodes = DXNode::get_all();
766 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
767 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
768 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
769 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
770 unshift @localnodes, DXCluster->get_exact($main::mycall);
771 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
774 my @s = $me->pc19(@localnodes, @remotenodes);
776 my $routeit = adjust_hops($self, $_);
777 $self->send($routeit) if $routeit;
780 # get all the users connected on the above nodes and send them out
781 foreach $n (@localnodes, @remotenodes) {
782 my @users = values %{$n->list};
783 my @s = pc16($n, @users);
785 my $routeit = adjust_hops($self, $_);
786 $self->send($routeit) if $routeit;
792 # route a message down an appropriate interface for a callsign
794 # is called route(to, pcline);
798 my ($call, $line) = @_;
799 my $cl = DXCluster->get_exact($call);
802 my $dxchan = $cl->{dxchan};
804 my $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
806 $dxchan->send($routeit) if $dxchan;
812 # broadcast a message to all clusters taking into account isolation
813 # [except those mentioned after buffer]
816 my $s = shift; # the line to be rebroadcast
817 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
818 my @dxchan = get_all_ak1a();
821 # send it if it isn't the except list and isn't isolated and still has a hop count
822 foreach $dxchan (@dxchan) {
823 next if grep $dxchan == $_, @except;
824 my $routeit = adjust_hops($dxchan, $s); # adjust its hop count by node name
825 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
829 # broadcast a message to all clusters ignoring isolation
830 # [except those mentioned after buffer]
831 sub broadcast_all_ak1a
833 my $s = shift; # the line to be rebroadcast
834 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
835 my @dxchan = get_all_ak1a();
838 # send it if it isn't the except list and isn't isolated and still has a hop count
839 foreach $dxchan (@dxchan) {
840 next if grep $dxchan == $_, @except;
841 my $routeit = adjust_hops($dxchan, $s); # adjust its hop count by node name
842 $dxchan->send($routeit);
846 # broadcast to all users
847 # storing the spot or whatever until it is in a state to receive it
850 my $s = shift; # the line to be rebroadcast
851 my $sort = shift; # the type of transmission
852 my $fref = shift; # a reference to an object to filter on
853 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
854 my @dxchan = get_all_users();
858 foreach $dxchan (@dxchan) {
859 next if grep $dxchan == $_, @except;
862 broadcast_list($s, $sort, $fref, @out);
865 # broadcast to a list of users
873 foreach $dxchan (@_) {
877 next unless $dxchan->{dx};
878 ($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
881 next if $sort eq 'ann' && !$dxchan->{ann};
882 next if $sort eq 'wwv' && !$dxchan->{wwv};
883 next if $sort eq 'wx' && !$dxchan->{wx};
885 $s =~ s/\a//og unless $dxchan->{beep};
887 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
896 # gimme all the ak1a nodes
900 my @list = DXChannel->get_all();
903 foreach $ref (@list) {
904 push @out, $ref if $ref->is_ak1a;
909 # return a list of all users
912 my @list = DXChannel->get_all();
915 foreach $ref (@list) {
916 push @out, $ref if $ref->is_user;
921 # return a list of all user callsigns
922 sub get_all_user_calls
924 my @list = DXChannel->get_all();
927 foreach $ref (@list) {
928 push @out, $ref->call if $ref->is_user;
934 # obtain the hops from the list for this callsign and pc no
940 my $hops = $DXProt::hopcount{$pcno};
941 $hops = $DXProt::def_hopcount if !$hops;
946 # adjust the hop count on a per node basis using the user loadable
947 # hop table if available or else decrement an existing one
954 my $call = $self->{call};
957 if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
958 my ($pcno) = $s =~ /^PC(\d\d)/o;
959 confess "$call called adjust_hops with '$s'" unless $pcno;
960 my $ref = $nodehops{$call} if %nodehops;
962 my $newhops = $ref->{$pcno};
963 return "" if defined $newhops && $newhops == 0;
964 $newhops = $ref->{default} unless $newhops;
965 return "" if defined $newhops && $newhops == 0;
966 $newhops = $hops if !$newhops;
967 $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
969 # simply decrement it
972 $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
984 return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
985 do "$main::data/hop_table.pl";
990 # remove leading and trailing spaces from an input string
998 # add a ping request to the ping queues
1001 my ($from, $to) = @_;
1002 my $ref = $pings{$to};
1003 $ref = $pings{$to} = [] if !$ref;
1006 $r->{t} = $main::systime;
1007 route($to, pc51($to, $main::mycall, 1));
1011 # add a rcmd request to the rcmd queues
1014 my ($from, $to, $cmd) = @_;
1017 $r->{t} = $main::systime;
1019 route($to, pc34($main::mycall, $to, $cmd));