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Type: Posts; User: stevehicks

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  1. Help !! Any advice for reverse engineering an encoded network stream ??

    Hi

    Thanks very much for your response and the link !!

    I do have access to the messages after they are decoded and are sent out of the gateway to the downstream client however because the...
  2. Help !! Any advice for reverse engineering an encoded network stream ??

    Hi

    I work for A.Big.Bank and we use a third party application for consuming stock price messages from A.Big.Stock.Exchange. The Gateway connects to a remote system using BSD sockets with TCP and...
  3. Hi Thanks very much for your assistance : ) ...

    Hi

    Thanks very much for your assistance : )

    I was originally doing it in perl with unpack...however, a field later on in the some of the messages(quote messages) was giving me trouble. Here's ...
  4. Passing an encoded string into a function to populate chars, uints etc

    Hi Guys

    I have a bunch of encoded messages that I need to process. Whilst working on this in our test environment the messages where present in file. The file was binary, and I was reading the...
  5. help !! : problem with binary file, and fread into structs : resolved

    Hi Guys

    I have now used the packing pragmas around my structs :


    #pragma pack(1)
    struct utpDmessageHeader
    {
    char messageType;
    char ProtoOrVer;
  6. >>So the compiler inserts padding to preserve the...

    >>So the compiler inserts padding to preserve the most efficient way of accessing the struct.

    that's nice of it !!

    >>- add the header (either as members, or as your struct).


    Thanks very...
  7. but I'm already reading MsgLen in the first...

    but I'm already reading MsgLen in the first struct "utpDmessageHeader" ...
  8. help !! : problem with binary file, and fread into structs

    Hi Guys

    I'm a PERL programmer usually but I have to write something in a C by tommorow morning and I'm having a real problem doing it (and whilst I can write fair PERL I am more or less a C n00b)....
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