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#!/usr/bin/perl


$file = $ARGV[0];


open(IN,$file) || die print "Failed to open file: $file : $!";

read(IN,$buffer,1);
read(IN,$buffer2,1);
if (ord($buffer) != 0x41 && ord($buffer2) != 0x50) {
        print "bad header ". $buffer ." ".$buffer2. "\n";
        exit;
}
read(IN,$buffer,1);
if (ord($buffer) != 2) {
        print "bad version";
        exit;
}

# spare
read(IN,$buffer,1);

$a = 0;

while (read(IN,$buffer,1)) {   
        $pos = (tell(IN) - 1);

        $size = ((ord($buffer) & 63));

        read(IN,$buffer,1);

        if (ord($buffer) == 0xff) {
                printf("end sentinel at %u\n", $pos);
                last;
        }

        printf("%04x: key %u size %d\n ", $pos, ord($buffer), $size + 1);

        for ($i = 0; $i <= ($size); $i++) {
                read(IN,$buffer,1);
                printf(" %02x", ord($buffer));
        }
        print "\n";
}

close IN;