Good morning David, I'm not familiar with 'daytime' but will come up to speed on it and get it and your use cases running and report my findings for everybody to see.
Hopefully netTest.c explains what I'm trying to do with Smalltalk. It's very short and simple. https://www.dropbox.com/s/xc23wj6r5aqh153/netTest.c?dl=0 I used my cell phone as the destination, my home WiFi as the network, and tcpdump to see the packet. Thank you David for the Smalltalk code fragments and introducing me to inetd and 'daytime'. Gary Highberger