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root |
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#!/opt/bin/perl |
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# http://www.dia.unisa.it/professori/ads/corso-security/www/CORSO-9900/a5/Netsec/netsec.html |
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use strict; |
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use POSIX; |
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use Event; |
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my %tput_cache; |
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sub tput { |
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$tput_cache{join "\x00", @_} ||= qx<tput @_> |
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} |
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my $tty = $ARGV[0] || "/dev/ttyS0"; |
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open my $aor, "+<:raw", $tty |
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or die "$tty: $!"; |
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{ |
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my $tio = new POSIX::Termios; |
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$tio->getattr (fileno $aor); |
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$tio->setiflag (POSIX::IXOFF | POSIX::IXON); |
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$tio->setoflag (0); |
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$tio->setcflag (POSIX::CLOCAL | POSIX::CREAD | POSIX::CSTOPB | POSIX::CS8); |
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$tio->setlflag (0); |
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$tio->setispeed (&POSIX::B9600); |
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$tio->setospeed (&POSIX::B9600); |
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$tio->setattr (fileno $aor); |
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} |
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my @info; |
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my @output; |
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sub refresh { |
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$| = 0; |
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print tput "cup", 0, 0; |
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my $clreol = tput "el"; |
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for (0..15) { |
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print "$info[$_]$clreol\n"; |
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} |
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shift @output while @output > 8; |
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print join "$clreol\n", @output; |
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print "$clreol\n> "; |
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print tput "ed"; |
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$| = 1; |
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} |
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Event->timer (after => 0.5, interval => 1, cb => sub { |
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print $aor "RX\015\012LM\015\012LC\015\012"; |
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}); |
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Event->io (fd => \*STDIN, poll => 'r', cb => sub { |
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my $line = <>; |
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$line =~ s/[\015\012]+$//; |
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$line = "\x1e" if $line eq "u"; |
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$line = "\x1f" if $line eq "d"; |
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print $aor uc "$line\015\012LC\015\012"; |
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}); |
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my %mode = ( |
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0 => "WFM", |
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1 => "NFM", |
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2 => "AM", |
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3 => "USB", |
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4 => "LSB", |
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5 => "CW", |
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); |
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my %info; |
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my $rbuf; |
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Event->io (fd => $aor, poll => 'r', cb => sub { |
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sysread $aor, $rbuf, 8192, length $rbuf; |
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while ($rbuf =~ s/^(.*)[\012\015]+//s) { |
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local $_ = $1; |
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s/[\012\015]//g; |
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$info{substr $_, 0, 2} = $_; |
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$info{freq} = "00 freq $1" if /\bRF(\d+)\b/; |
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$info{mode} = "01 mode $mode{$1}" if /\bMD(\d+)\b/; |
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@info = sort values %info; |
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push @output, $_ unless /^($|SS|LM|VF|MR|MS|SM)/; |
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} |
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refresh; |
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}); |
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refresh; |
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Event::loop; |
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