Tony Finch on Nostr: reading a blog post on implementing a toy dns resolver by someone who admits they are ...

reading a blog post on implementing a toy dns resolver by someone who admits they are a newbie to network programming

so obviously i do my standard thing of checking the dns name decompression code

and as usual it has the standard mistake that everyone makes, failing to protect against compression pointer loops

not the newbie’s fault, it’s a subtle trap