Here are the data structures with brief descriptions:

C_u_body
C_u_cookie
C_u_endpoint	Contains all informations needed for an endpoint
C_u_instance	Contains the needed data for an ulfius instance to work
C_u_map
C_u_request	Definition of the parameters available in a struct _u_request
C_u_response	Definition of the parameters available in a struct _u_response
C_u_smtp_payload
Cconnection_info_struct
Cyuarel
Cyuarel_param