[dcplusplus-devel] Idea of PING extension for hublist pingers

[Eugen <pi...@de...>]

=== PING - Pinger extension
This extension can be supported by both clients and hubs, and when 
present, if hub
supports it, it must send additional information to the client ( 
otherwise normal
base client)

When the client supporting the PING command connects, the hub must send its
normal INF along with the following added fields ( none mandatory, if 
not present,
it means hub has no restrictions in that matter ):

HH - Hub Host address ( DNS or IP )
WS - Hub Website
OW - Hub Owner name
UC - Current User count
SS - Total share size
SF - Total files shared
MS - Minimum share required to enter hub ( bytes )
XS - Maximum share for entering hub ( bytes )
ML - Minimum slots required to enter hub
XL - Maximum slots for entering hub
MU - Minimum hubs connected where clients can be users
MR - Minimum hubs connected where client can be registered
MO - Minimum hubs connected where client can be operators
XU - Maximum hubs connected where clients can be users
XR - Maximum hubs connected where client can be registered
XO - Maximum hubs connected where client can be operators
MC - Maximum possible clients ( users ) who can connect

Inherited fields from BASE:
NI - Hub Name
DE - Hub Topic
VE- Hub software version
HU - This information is about the hub




The hub may decide to disconnect pinger after all information is sent, 
or continue
to send the user list as for a normal user ( move to NORMAL state ).