ws2_32::GetAddrInfoExA

pub unsafe extern "system" fn GetAddrInfoExA(pName: PCSTR, pServiceName: PCSTR, dwNameSpace: DWORD, lpNspId: LPGUID, hints: *const ADDRINFOEXA, ppResult: *mut PADDRINFOEXA, timeout: *mut timeval, lpOverlapped: LPOVERLAPPED, lpCompletionRoutine: LPLOOKUPSERVICE_COMPLETION_ROUTINE, lpNameHandle: LPHANDLE) -> INT