need help with unpacking ip address

[Mike Wilson]

I was wanting to write a quick little subnet calculator, but I'm having
trouble figuring out how to get the ip address to binary. Given
10.159.23.185, the right answer is "00001010.10011111.00010111.10111001". I
try using "10.159.23.185".unpack("B8B8B8B8"), but receive ["00110001",
"00110000", "00101110", "00110001"] as my answer, which obviously doesn't
match up. What am I doing wrong?

Thanks!

_________________________________________________________________
Tired of slow downloads? Compare online deals from your local high-speed
providers now. https://broadband.msn.com

 

[ts]

M> 10.159.23.185, the right answer is "00001010.10011111.00010111.10111001".

one way to do it

svg% ruby -e 'p ("%08b." * 4 % "10.159.23.185".split(/\./)).chop'
"00001010.10011111.00010111.10111001"
svg%


Guy Decoux