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Adapted to the new CONN command

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This commit is contained in:
Klaus Schmidinger 2018-02-25 12:42:58 +01:00
parent 361d642660
commit bbbc36a1e6
1 changed files with 54 additions and 34 deletions
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72
peerdemo
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@ -2,7 +2,12 @@
# VDR SVDRP Peer Demo
#
# (C) 2017 by Klaus Schmidinger <Klaus.Schmidinger@tvdr.de>
# This script broadcasts an SVDRP discover datagram on the SVDRP UDP port and
# then listens for replies from peer VDRs on both the UDP and TCP port.
# It reacts properly to the SVDRP commands CONN, LSTT, POLL, PING and QUIT,
# and thus seems like a regular VDR to other VDRs.
#
# (C) 2018 by Klaus Schmidinger <Klaus.Schmidinger@tvdr.de>
use Getopt::Std;
use IO::Socket;
@ -11,13 +16,11 @@ use IO::Select;
$Usage = qq{
Usage: $0 options
Options: -c communicate with peer VDR
-v be verbose
Options: -v be verbose
};
die $Usage if (!getopts("cv"));
$Communicate = $opt_c || 0;
$Verbose = $opt_v || 0;
$SvdrpPort = 6419;
@ -42,16 +45,9 @@ $BcastSocket->close();
while (1) {
if ($UdpSocket->recv($Request, 1024)) {
if ($SkippedFirstUdpPacket++) { # the first one is the one we sent, so skip it
if (Extract($Request, "name") ne $MyName) {
Log('<', $UdpSocket, $Request);
$Request .= " "; # for easier parsing
my $Name = Extract($Request, "name");
my $Port = Extract($Request, "port");
my $VdrVersion = Extract($Request, "vdrversion");
my $ApiVersion = Extract($Request, "apiversion");
my $Timeout = Extract($Request, "timeout");
my $PeerHost = $UdpSocket->peerhost();
print("found VDR '$Name' at $PeerHost with SVDRP port '$Port'\n");
ReportVDR($Request, $UdpSocket->peerhost());
}
}
if (my @Ready = $SvdrpSelect->can_read(0.01)) {
@ -63,27 +59,30 @@ while (1) {
# send mandatory response to simulate an SVDRP host:
my $Prompt = "220 $MyName SVDRP VideoDiskRecorder 2.3.9; Wed Nov 29 17:00:29 2017; ISO-8859-1";
Log('>', $new, $Prompt);
print($new $Prompt);
if ($Communicate) {
print($new "$Prompt\n");
# add incoming connection to select:
$SvdrpSelect->add($new);
}
else {
# close connection:
$new->close;
}
}
else {
# process connection:
my $Request;
if ($fh->recv($Request, 1024)) {
my $Request = "";
$fh->recv($Request, 1024);
chomp($Request);
Log('<', $fh, $Request);
if ($Request =~ /^LSTT/) {
my $Response = "550 No timers defined";
Log('>', $fh, $Response);
print($fh "$Response\n");
if ($Request =~ /^CONN/) {
Reply($fh, "250 OK");
ReportVDR($Request, $fh->peerhost());
}
elsif ($Request =~ /^LSTT/) {
Reply($fh, "550 No timers defined");
}
elsif ($Request =~ /^POLL/) {
Reply($fh, "250 OK");
}
elsif ($Request =~ /^PING/) {
Reply($fh, "250 $MyName is alive");
}
elsif ($Request =~ /^QUIT/) {
# close connection:
$SvdrpSelect->remove($fh);
$fh->close;
@ -91,9 +90,30 @@ while (1) {
}
}
}
}
# Tools:
sub Reply
{
my ($fh, $s) = @_;
Log('>', $fh, $s);
print($fh "$s\n");
}
sub ReportVDR
{
my $s = shift;
my $PeerHost = shift;
$s .= " "; # for easier parsing
my $Name = Extract($s, "name");
my $Port = Extract($s, "port");
my $VdrVersion = Extract($s, "vdrversion");
my $ApiVersion = Extract($s, "apiversion");
my $Timeout = Extract($s, "timeout");
print("found VDR '$Name' at $PeerHost with SVDRP port '$Port'\n");
}
sub Extract
{
my ($s, $n) = @_;