This is a module for the AWS SDK for C. It handles all IO and TLS work for application protocols.
This is an event driven framework for implementing application protocols. It is built on top of cross-platform abstractions that allow you as a developer to think only about the state machine and API for your protocols. A typical use-case would be to write something like Http on top of asynchronous-io with TLS already baked in. All of the platform and security concerns are already handled for you.