CODEWITHSUNDEEP
c++sslopensslnonblocking
Pepe Longstrong
Pepe Longstrong

Reputation: 11

OpenSSL Accepting Non-Blocking Client connections from the Server

I am quite a new at using openssl, and i'm attempting to accept a nonblocking connection from a blocking server, i've read a couple questions asking exactly this question found here: Non-blocking connect OpenSSL SSL CONNECT produces -1 ERROR

most of the answers say to recall the SSL_accept() function again, how would I go about doing this? would I just do a while (true) loop until the client calls the connection?

here's the current code for accepting the connection

int code = SSL_accept(ssl);
if (code <= 0)
{
    int ssl_error = SSL_get_error(ssl, code);
    if (ssl_error == SSL_ERROR_WANT_READ || ssl_error == SSL_ERROR_WANT_WRITE)
    {
        //ignore
    }
    else if (ssl_error == SSL_ERROR_ZERO_RETURN)
    {
        //remove connection
    }
    else
    {
        cout << code << endl; //returns -1
        cout << ssl_error << endl; //returns 1 (SSL_ERROR_SSL)
        //remove connection (the code usually leads to here)
    }
}

Upvotes: 1

Views: 77

Answers (0)

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