> If I'm misunderstanding the man page and/or the source code
> please speak up.
My man page says:
If the underlying BIO is non-blocking, SSL_shutdown() will also
return
when the underlying BIO could not satisfy the needs of SSL_shutdown()
to continue the handshake. In this case a call to SSL_get_error()
with
the return value of SSL_shutdown() will yield SSL_ERROR_WANT_READ or
SSL_ERROR_WANT_WRITE. The calling process then must repeat the call
after taking appropriate action to satisfy the needs of
SSL_shutdown().
The action depends on the underlying BIO. When using a non-blocking
socket, nothing is to be done, but select() can be used to check for
the required condition. When using a buffering BIO, like a BIO pair,
data must be written into or retrieved out of the BIO before being
able
to continue.
My man page comes from Red Hat, 0.9.8a-5.4, Sep 28, 2006.
DS
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