[PATCH 3/3] ws2_32: Implement get socket option SO_PROTOCOL_INFO

[Alexandre Julliard]

Bruno Jesus <00cpxxx at gmail.com> writes:

> +    items = WSAEnumProtocolsW(NULL, NULL, &listsize);
> +    if (items == SOCKET_ERROR && WSAGetLastError() == WSAENOBUFS &&
> +       (buffer = HeapAlloc(GetProcessHeap(), 0, listsize)))
> +    {
> +        items = WSAEnumProtocolsW(NULL, buffer, &listsize);
> +        for (i = 0; i < items; i++)
> +        {
> +            if (buffer[i].iAddressFamily == info.a->iAddressFamily && 
> +                buffer[i].iSocketType == info.a->iSocketType &&
> +                buffer[i].iProtocol == info.a->iProtocol)
> +            {
> +                if (unicode)
> +                    memcpy(info.w, &buffer[i], sz);
> +                else
> +                {
> +                    /* convert the structure from W to A */
> +                    memcpy(info.a, &buffer[i], FIELD_OFFSET(WSAPROTOCOL_INFOA, szProtocol));
> +                    WideCharToMultiByte(CP_ACP, 0, buffer[i].szProtocol, -1,
> +                                        info.a->szProtocol, WSAPROTOCOL_LEN+1, NULL, NULL);
> +                }
> +                break;
> +            }
> +        }
> +    }

There's no reason to enumerate the protocols since you already know the
one you want.

-- 
Alexandre Julliard
julliard at winehq.org