Struc exists to pack and unpack C-style structures from bytes

Service Discovery and Configuration Made Easy

Gobot is a framework for robotics, physical computing, and the Internet of Things, written in the Go programming language

Complete and usable DNS library. All widely used Resource Records are supported, including the DNSSEC types. It follows a lean and mean philosophy. If there is stuff you should know as a DNS programmer there isn't a convenience function for it. Server side and client side programming is supported, i.e. you can build servers and resolvers with it.