Bridget
Please reply to the list, that way if i am not available, someone else on
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<I want to extract the first 4 bits of an ip packet ($packet). Does the
following line of code do this for me? Or does it give me the first four
bytes of the packet or even something else?
$bytes = unpack("b4", $packet);
>
Couple of questions:
You want to extract the 4 bits into an array or into an string?
Is this a raw packet dump in hex?
There are many ways but here is one:
$packet = "234BBFF56";
@array = split(//, unpack('B4', $packet));
# @bits now has members 0,0,1,1
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