openssl: don't try to handle WANT_READ or WANT_WRITEcmn/ssl-no-want

We use a blocking socket and set the mode to AUTO_RETRY which means that
`SSL_write` and `SSL_read` will only return once the read or write has
been completed. We therefore don't need to handle partial writes or
re-try read due to a regenotiation.

While here, consider that a zero also indicates an error condition.

0 files changed, 0 insertions, 0 deletions