stunnel TODO


* High priority features I'm going to support (sponsorship welcomed):
  - Support for CryptoAPI certificates and private keys with CAPI engine.
  - Support for Server Name Indication SSL extension
    with SSL_CTX_set_tlsext_servername_callback.
  - Service-level logging configuration (separate verbosity and destination).

* Low priority features I'm going to support (sponsorship welcomed):
  - SOCKS 4 protocol support.
    http://archive.socks.permeo.com/protocol/socks4.protocol
  - Key renegotiation (re-handshake) for long connections.
  - Logging to NT EventLog on Windows.
  - Log file rotation with with GUI on Windows.
  - Internationalization of logged messages (i18n).
  - Generic scripting engine instead or static protocol.c.

* Features I prefer *not* to support (waiting for a wealthy sponsor):
  - Additional certificate checks (including wildcard comparison) based on
    CN and X509v3 Subject Alternative Name.
  - Protocol support *after* SSL is negotiated.
  - Support for adding X-Forwarded-For to HTTP request headers.
  - Support for adding X-Forwarded-For to SMTP email headers.

