From: hroyd hroyd <hroyd@mailinator.com>
Newsgroups: comp.lang.ruby
Subject: splitting binary data
Date: Wed, 20 Apr 2011 03:26:35 -0500
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Hello

First post (i am new to ruby :-)). Can you help?

I am using eventmachine to read in TCP segments off the network. I read
in a TCP segment that contains 4 messages. The TCP segment binary data
is shown below, where
\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\ is the
marker for each message. I would like to split the data intot he 4
messages, but am having trouble doing so. When I split the data, the
whole message gets inserted into the first array element. I understand I
may need to escape the \, but how would i do that for the following
message. I can split it by unpacking to Hex, and the splitting, but that
is inefficient for my needs as I use bindata to inspect the packet. Any
help is appreciated

Thanks


\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x00R\x02\x00\x00\x00'@\x01\x01\x00@\x02\x00@\x03\x04\n\x10\x8E\xC8\x80\x04\x04\x00\x00\x002@\x05\x04\x00\x00\x00d\xC0\b\b\x00\x01\x00\x01\x00\x01\x00\x02\x18\n\x10\x8E\b\x04\x18\x02\x02\x02
\n\x13\x00\x01
\x01\x01\x01\x01\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x00A\x02\x00\x00\x00'@\x01\x01\x00@\x02\x00@\x03\x04\n\x10\x8E\xC8\x80\x04\x04\x00\x00\x002@\x05\x04\x00\x00\x00d\xC0\b\b\x00\x01\x00\x01\x00\x01\x00\x02\x10\x03\x03\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x00d\x02\x00\x00\x00I@\x01\x01\x00@\x02\x1E\x02\x0E=\xD6R\x132H2H2H2H2H2H2H2H\x8A\xEA\x8A\xEA\x8A\xEA\x8A\xEA@\x03\x04\n\x10\x8E\n\x80\x04\x04\x00\x00\x00\x00@\x05\x04\x00\x00\x00d\xC0\b\f=\xD6\x01,=\xD6\x011=\xD6\v\xEB\x16.\xAE\xF0\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x00N\x02\x00\x00\x003@\x01\x01\x00@\x02\b\x02\x03=\xD6R\xE3\xC0\x1F@\x03\x04\n\x10\x8E\n\x80\x04\x04\x00\x00\x00\x00@\x05\x04\x00\x00\x00d\xC0\b\f=\xD6\x01,=\xD6\x011=\xD6\v\xEB\x16.\xAD\xA8

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