I can't take credit for this, I copied from someone elses code.
sub parse_tcp_flags {
my $flagword = shift(@_);
my %flags = ("FIN"=>0,"SYN"=>0,"RST"=>0,"PSH"=>0,"ACK"=>0,"URG"=>0)
+;
$flags{FIN} = ($flagword & 0x01)? 1: 0;
$flags{SYN} = ($flagword & 0x02)? 1: 0;
$flags{RST} = ($flagword & 0x04)? 1: 0;
$flags{PSH} = ($flagword & 0x08)? 1: 0;
$flags{ACK} = ($flagword & 0x10)? 1: 0;
$flags{URG} = ($flagword & 0x20)? 1: 0;
return \%flags;
}
Pass this function the flags from parse_tcp_flags
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