From: Rick DeNatale <rick.denatale@...>
Date: 2007-05-25T07:03:03+09:00
Subject: Re: sending data, no strings via socket

On 5/24/07, Javier None <javierisassi@gmail.com> wrote:
> I'm trying to send data like
>
> typedef struct{
>    u_int32_t type;
>    u_int8_t len;
>    u_int8_t * buf;
> }
>
> over a tcp socket using ruby.
>
> Anything I push over the socket comes out the other end as a string..
>
> in Ruby..
>
> data = 10
> socket = TCPSocket.new(home,port)
> socket.write(data)
>
> on the other end I get
> receieved byte dump
> 0000: 31 30                10
>
> which is the ascii for 10. How can I tell Ruby to send the 0x10?
> even if I write
> data = 0x10
> on the other side I get:
> 0000: 31 36                16
> Which again, is the ascii getting send, not the data.
> thanks for any help.

Well, write takes a string representing the datastream to be written
so you need a string with the binary data.

if you are trying to write a single byte then
data  = 10.chr

You might also want to look at Array#pack

-- 
Rick DeNatale

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