The current buffer size of 32 bytes was too small to hold the version
info string which resulted in a non-null terminated buffer (_snprintf
does not null-terminate the buffer if it is too small) being printed.
With the location channel, an RDP server can redirect the location of
the user from the client side to the server side.
The PDUs are almost the same as in the documentation, except for the
encoded types, these ones are here already parsed.
Optional values are accessed via pointers. If the pointer of a value is
NULL, then that value was not supplied by the client side.
