[Vala] Vala bindings for getaddrinfo and similar Unix API

[Mikael Hermansson <mike tielie gmail com>]

What is the most correct binding:
namespace Test {
[CCode]
struct AddrInfo {
  ....
}

A:

[CCode]
public static int getaddrinfo(string host, string service, AddrInfo
*hint, AddrInfo **result);

B:

[CCode]
public static int getaddrinfo(string host, string service, AddrInfo
hint, AddrInfo *result);

}

When declare this in vala:

A gives:

AddrInfo hint;
weak AddrInfo []result;
Test.getaddrinfo(host, serv, &hint, &result)

B gives:

AddrInfo hint;
weak AddrInfo []result;
Test.getaddrinfo(host, serv, hint, &result)