From: Joel VanderWerf <vjoel@...>
Date: 2007-05-25T06:51:02+09:00
Subject: Re: sending data, no strings via socket

Javier Isassi wrote:
> class Tdata < BitStruct
>   unsigned :type,  32
>   rest     :buf
> end
> 
> data = Tdata.new
> data.type = 987 #03DB
> data.buf = "push to talk"
> 
> socket = TCPSocket.new(home,port)
> 
> server writes.....
> 0000: 00 00 03 DB 70 75 73 68 20 74 6F 20 74 61 6C 6B   ....push to talk
> 
> we get big endian, that can be managed on the server side with 
> htonl,htons.
> Thanks!
> 

If you want to use different endianness:

   unsigned :type,  32,   :endian => :native # little endian, if on x86
   unsigned :type,  32,   :endian => :little # force little endian

Big-endian is only the default because many network protocols use it.

-- 
        vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407