mirror of https://github.com/aredn/aredn.git
51 lines
1.3 KiB
Perl
Executable File
51 lines
1.3 KiB
Perl
Executable File
#!/usr/bin/perl
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# do nothing if olsrd is not running
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exit if system "ps | grep -v grep | grep -q 'olsrd '";
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($uptime) = `cat /proc/uptime` =~ /^(\d+)/;
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# load the hosts file
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foreach(`cat /var/run/hosts_olsr 2>/dev/null`)
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{
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next unless /^\d/;
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($ip, $name, $junk, $originator, $mid) = split /\s+/, $_;
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next unless $originator;
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next if $originator eq "myself";
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next unless ($ip eq $originator) or (defined $mid and $mid eq "(mid");
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if($hosts{$ip}) { $hosts{$ip} .= "/$name" }
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else { $hosts{$ip} = $name }
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}
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# find the current neighbors
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foreach(`echo /links | nc 127.0.0.1 2006 2>/dev/null`)
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{
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next unless /^\d/;
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($my_ip, $ip) = split /\s+/, $_;
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$history{$ip}{age} = $uptime;
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$history{$ip}{name} = $hosts{$ip};
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}
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exit unless keys %history;
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# load and strip the current history
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foreach(`cat /tmp/node.history 2>/dev/null`)
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{
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chomp;
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($ip, $age, $name) = split / /, $_;
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next unless $age;
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next if $history{$ip};
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next if $uptime - $age > 86400;
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$name = "" unless $name;
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$history{$ip}{age} = $age;
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$history{$ip}{name} = $name;
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}
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# write the new history
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open(FILE, ">/tmp/node.history") or exit;
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foreach $ip (keys %history)
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{
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printf FILE "%s %s %s\n", $ip, $history{$ip}{age}, $history{$ip}{name};
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}
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close(FILE);
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