https://github.com/kungfooman/libcod...ster/README.md
https://github.com/M-itch/libcod/blob/master/README.md
https://github.com/voron00/libcod/blob/master/README.md
And a list of functions (not updated, according to Mitch)
https://znation.nl/cod4script/
Basically, Libcod adds new functions to your server, such as "getPing()".
It makes a lot of things possible, and you can add your own functions if you know how to write and compile.