Packing a long binary integer in Ruby

Posted by user1056142 on Stack Overflow See other posts from Stack Overflow or by user1056142
Published on 2011-11-20T08:06:45Z Indexed on 2011/11/21 1:52 UTC
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ruby

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pack

I'm trying to send a very long binary integer over UDP (on the order of 200 bits). When I try to use Array's pack method, it complains the string I'm trying to convert is too large.

Am I going about this the wrong way?

ruby-1.8.7-p352 :003 > [0b1101001010101101111010100101010011010101010110010101010101010010010101001010101010101011101010101010101111010101010101010101].pack('i')
RangeError: bignum too big to convert into `unsigned long'
from (irb):3:in `pack'
from (irb):3

This number is supposed to represent a DNS query packet (this is for a homework assignment; we're not allowed to use any DNS libraries).

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