CodeCrafters HTTP Server in Rust

A simple DNS server built for the CodeCrafters DNS Server challenge.

Split into two crates:

• dns: A library for running a generic DNS server.
• bits: A library for working with bits that are smaller than a u8.
• codecrafters-dns-server: The application code, implementing the event loop.

The dns crate is the main one to have a look through. It supports:

• Parsing DNS queries from bytes.
• Resolving the DNS query via:
  • A static resolver (just returning a single IP address, useful for testing).
  • A forwarding resolver (forwarding the request on to another DNS server).
• Serialising a DNS response as bytes.