96 lines
1.5 KiB
Text
96 lines
1.5 KiB
Text
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#!/usr/bin/perl -w
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# USAGE: fgfsscript [host [port]]
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# Melchior FRANZ, a8603365@unet.univie.ac.at
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# $Id$
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use strict;
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use IO::Socket;
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my $host = (shift || 'localhost');
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my $port = (shift || 5501);
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my ($fgfs, $i);
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# main()
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{
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chdir;
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$fgfs = &connect($host, $port, 120) || die " can't open socket\n";
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&send("data");
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# wait for random altitude (0--3000 ft.) to be reached
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my $alt = int(rand(3000));
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print "disaster begins at $alt ft. AGL\n";
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while (1) {
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sleep(1);
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$i = &get("/position/altitude-agl-ft");
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print "\r" . int($i) . " ft.";
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print "\n" and last if $i > $alt;
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}
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print "start fuel dumping :-)\n";
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for ($i = 0; $i < 4; $i++) {
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sleep(rand(60));
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&set("/consumables/fuel/tank[$i]/level-gal_us", 0);
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print "tank $i empty\n";
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}
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&send("quit");
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close $fgfs;
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}
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sub get()
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{
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&send("get " . shift);
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eof $fgfs and die "\nconnection closed by host";
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$_ = <$fgfs>;
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s/\015?\012$//;
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/^-ERR (.*)/ and die "\nfgfs error: $1\n";
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return $_;
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}
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sub set()
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{
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my $prop = shift;
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my $value = shift;
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&send("set $prop $value");
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}
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sub send()
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{
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print $fgfs shift, "\015\012";
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}
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sub connect()
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{
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my $host = shift;
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my $port = shift;
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my $timeout = (shift || 120);
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my $socket;
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STDOUT->autoflush(1);
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print "connect ";
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while ($timeout--) {
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if ($socket = IO::Socket::INET->new(
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Proto => 'tcp',
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PeerAddr => $host,
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PeerPort => $port)) {
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print ".. done.\n";
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$socket->autoflush(1);
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sleep 1;
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return $socket;
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}
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print ".";
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sleep(1);
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}
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return 0;
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}
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# vi:ts=8:sw=8:noet:nowrap:cindent
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