MQTT client for DOS

[schenkzoola]

I had an idea this morning that made me think about MQTT on a vintage PC.

Does anybody know if an MQTT client has been written for DOS? It seems like the sort of thing that would fit nicely with the mTCP suite.
I did a bit of digging and came up with little. It does seem like it might be possible to port some of the Arduino MQTT libraries over though.