[ofw] incorrect SID generation in WvGetServiceId

[Fab Tillier]

Hi Sean,

WvGetServiceId swaps the port number in the sockaddr but shouldn't.  The port number in a sockaddr structure is already in network order.  See http://msdn.microsoft.com/en-us/library/ff570823(VS.85).aspx, the remarks section:
" All of the data in the SOCKADDR_IN structure, except for the address family, must be specified in network-byte-order (big-endian)."

-Fab