New requirement: Add support to ACL

[robot-dot-win]

cproxy is really so nice!

Sometimes users need to redirect only specific dest ports and/or dest hosts(IP or domain name), like this scenario:
Only redirect a specific dest port

So would you please consider supporting ACL in the future :)

[NOBLES5E]

Thanks for your suggestion.

As you probably noticed, cproxy is a very simple program with less than 1k LOC. An ACL system alone will cost more than that. We prefer to keep cproxy simple at the moment.