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Remote IP of TCP Socket

Jonathan Schubert
Prodigy 30 points

Hi everyone,

I'm looking for a function to retrieve the IP-Adress of a client TCP Socket. I found this function as part of other driver frameworks already so I'm quite shure there is a way to do so. Does  anybody has an idea?


Many Thanks,

Jonathan

  • 0
    TI__Mastermind 27095 points

    Hi Jonathan,

    After the TCP server's accept call returns a non-negative value, you can access the first 4 octets of the client IP address through

    tSocketClientAddr.sa_data[5],
    tSocketClientAddr.sa_data[4],
    tSocketClientAddr.sa_data[3],
    tSocketClientAddr.sa_data[2],

    Where tSocketClientAddr is defined as sockaddr tSocketClientAddr;

    You can place a call to 'accept' as shown below:

    sock = accept(ulSocket,
                                  &tSocketClientAddr,
                                  (socklen_t *)sizeof(tSocketClientAddr));

    Regards,
    Raghavendra

  • 0 in reply to Raghavendra Shenoy
    Prodigy 20 points

    How do I apply this to Arduino Mega with CC3000 Shield?   I do not understand how it gets used!

    William