No. My understanding of ZERO_RETURN means that the SSL session has been closed down by the other end. I've been doing some experimenting, and a no-data condition results in a WANT-READ.
I just want to know if that means I'm stuck, unable to send data, until something arrives. -----Original Message----- From: [EMAIL PROTECTED] Sent: Jan 19, 2004 10:14 AM To: [EMAIL PROTECTED] Subject: Re: NON-BLOCKING I/O <br><font size=2 face="sans-serif">Somebody please correct me if I'm wrong, but I believe in that case you'd receive a separate error, SSL_ERROR_ZERO_RETURN. I have, for example, experienced conditions where the end of data transmission occurred precisely on my reading buffer size. So the next SSL_raed() that I attempt results in zero data and thus SSL_ERROR_ZERO_RETURN. Is that similar to the scenario you have in mind?</font> <br> <br><font size=2 face="sans-serif">-- kov</font> <br> <br> <br> <br><font size=2><tt>From my reading of the SSL_read man page, if I call SSL_read and there is no data, I will<br> receive a WANT_READ error (or possibly a WANT_WRITE) if the underlying media can't<br> fulfill the request.<br> </tt></font> <br><font size=2><tt>It is also my understanding that should I get a "WANT" result, the only thing I can do<br> is to retry the call when it can be fulfilled. However, if "no data" is a valid condition,<br> and I receive a WANT result, then does that mean I can't call SSL_WRITE to send a message?<br> </tt></font> <br> ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List [EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]
