How to set the "max fragment length" during the handshake

[Animesh Chowdhury]

Hi,
We want to set the max fragment length during connection setup to something
higher than 2^14 . Is it possible ?
Our data size is greater than 16K. So it would be ok even if I set the value
to 2^12 as long as the data is sent from server to client in its entirety in
multiple chunks.
How do I set the value? In which version of openssl is the feature enabled?

Thanks.
Animesh