F.5 An example C client
This section contains a simple C program that opens a connection to a Hyper-G server, performs a command who command, and prints the result (that is, the list of users currently connected to the server). It uses a library of low-level C functions that encapsulate most of the client-server communication. See documents hg_comm.h, hg_comm.c and hg_who.c below.
