Hello
I have a simple question that I can't find an answer to. I'm writing an
application where every instance is both client and server (a thread is
listening for incoming connections on a predefined port, and at the same
time connections are created to others whenever they're needed).
Whenever I accept an incoming connection, I'd like to be able to retain
the IP address which has just connected (for future use and logging).
I thought I'd be able to achieve this by using the following code
(truncated to essentials, left out error handling):
if (BIO_do_accept(accept_bio) > 0)
{
client = BIO_pop(accept_bio);
BIO_get_conn_hostname(client); // returns NULL
}
However, I've found that BIO_get_conn_hostname() always returns NULL on
incoming connections. This happens for all connections (plain/SSL). The
connections, however, work fine and transmit data as they should. I
assume this is intended - that the hostname is null, but I don't know
how to go about actually retrieving it. I'd like to keep using the BIO
abstraction if possible. How would I go on from here?
Thanks in advance,
Laura
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