Michael van Elst wrote:

> There is no way for getaddrinfo() to deduce a protocol
> from just a port number.
> 
> Giving it a hint that you want data for a SOCK_STREAM is
> enough and you get:
> 
> result: 0 = Success
> flags: 0, family: 24, socktype: 1, protocol: 6

Thanks for your help. Now that I know what to look for I see that the
software author used hints before but not everywhere necessary.

ciao
     Klaus