> Documentation tells me that the SSL pointer should inherit > the blocking property from the socket passed to SSL_set_fd.
Right. > However, when I call SSL_shutdown with the SSL handle, > the return code I get is not an error or a shutdown completed > but a shutdown in progress (return code= 0). Which is pretty much the same as every other operation. If you call 'send' or 'write' on a blocking TCP socket, and you get a zero return, does that mean the data has been sent? No. It means the data is queued and the send is in progress. If you call 'shutdown' on a blocking socket and get a zero return, does that mean the connection has finished shutting down? No. It means the shutdown is in progress. > Documentation tells me that the shutdown will not return until > the shutdown is completed (return code= 1) or an error condition > is detected (return code= -1) if the SSL handle is blocking. I'm not sure what documentation that is, but it's incorrect. > So now I am confused. How can I test the SSL handle to find > out if it is blocking or not? The operation will only block if it has to. Operations won't gratuitously block. Specifically, operations try as hard as they can *not* to block until the other side does things unless that is necessary to take the data passed or give the data that needs to be returned. > regards, > Solveig DS ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]