Clean up read, peek, and write implementations.
	- Combine SSL read with tlssep_send
	- Decorator: do not always terminate of failed send/recv.
	- Rename producer and consumer arguments?
	- Check return value from producer and consumer calls.

How to support multiple-domain configuration for OpenBSD httpd?

Better OpenSSL <-> libtlssep error correspondence.

Package for Fedora, including setuid bit and special account.

Implement DANE.

Check for certificate revocation.

Implement TLS session caching.
