I finally got some System 6 compatible MacTCP code written in C to compile. So far it's just an MPW tool. I can stop and start music on my Linux box from inside MPW.
Tomorrow I'll have to get it into an app. Then make it useful.
So much effort to do what I can presently do easily with Pascal. Feels a bit silly, since I might just end up going back to pascal for this project, but I have a much better understanding of MacTCP now.
As a side note, I was able to compile Porter's Browser6 with Think C. Perhaps some day I'll be able to do something useful for that project. Maybe for the Winter WarmUp?