keehun / toy_dns Goto Github PK

It is important to be able to handle IPv6 servers and records. Right now, only IPv4 is supported. Ensure that toy_dns is fully compatible with all servers and records.

While it's important to test using unit tests as much as possible, it is also important to incorporate full, end-to-end testing with a real network and with a real DNS server.

Use Github Actions to run a suite of tests which will use toy_dns to resolve numerous well-known domain names to ensure compatibility with the most important domain names of today.

pytest could be a good tool for this.

To name a few:

• CAA
• CERT
• DNSKEY
• DS
• HTTPS
• LOC
• NAPTR
• NS
• PTR
• RP
• RRSIG
• SMIMEA
• SOA
• SSHFP
• SVCB
• TLSA
• URI

Parsing untrusted data, especially one that can be triggered by unprivileged users is always a dangerous task for any program. Implement fuzz testing to ensure that we're not just relying on Rust's "memory safety features".

There is a fantastic book called the "Rust Fuzz Book" which provides a great introduction to fuzzing rust programs.

The first tools to look into seem to be afl.rs and cargo-fuzz.