The use of the following NIS+ C API functions is illustrated through this example:
nis_add() nis_add_entry() nis_addmember()
nis_creategroup() nis_destroygroup() nis_domain_of()
nis_freeresult() nis_leaf_of() nis_list()
nis_local_directory() nis_local_principal() nis_lookup()