OPENSSL_NO_DEPRECATED, etc. Steve, please double-check the CMS stuff...

Returning -1 for an attempt to read from an empty buffer is empty is
not an error that should be signalled via the error queue, it's a
'retry read' condition and is signalled as such.

Fix bug in read only memory BIOs so BIO_reset() works.

Add sign and verify options to dgst utility, need
to update docs.

message).

designed for that.  This removes the potential error to mix data and
function pointers.

Please note that I'm a little unsure how incorrect calls to the old
ctrl functions should be handled, in som cases.  I currently return 0
and that's it, but it may be more correct to generate a genuine error
in those cases.

Submitted by:
Reviewed by:
PR: