netConnectIpWindows

fn netConnectIpWindows(
    userdata: ?*anyopaque,
    address: *const IpAddress,
    options: IpAddress.ConnectOptions,
) IpAddress.ConnectError!net.Socket {
    if (!have_networking) return error.NetworkDown;
    if (options.timeout != .none) @panic("TODO implement netConnectIpWindows with timeout");
    const t: *Threaded = @ptrCast(@alignCast(userdata));
    _ = t;
    const family = posixAddressFamily(address);
    const socket_handle = try openSocketAfd(family, .{ .mode = options.mode, .protocol = options.protocol });
    errdefer windows.CloseHandle(socket_handle);
    try setSocketOptionAfd(socket_handle, ws2_32.SOL.SOCKET, ws2_32.SO.REUSE_UNICASTPORT, true);
    const bound_address = bindSocketIpAfd(socket_handle, &switch (address.*) {
        .ip4 => .{ .ip4 = .unspecified(0) },
        .ip6 => .{ .ip6 = .unspecified(0) },
    }, .Active) catch |err| switch (err) {
        error.AddressInUse => return error.Unexpected,
        else => |e| return e,
    };
    const Storage = extern struct { Reserved0: [3]usize = @splat(0), Address: PosixAddress };
    var storage: Storage = .{ .Address = undefined };
    const addr_len = addressToPosix(address, &storage.Address);
    switch ((try deviceIoControl(&.{
        .file = .{ .handle = socket_handle, .flags = .{ .nonblocking = true } },
        .code = windows.IOCTL.AFD.CONNECT,
        .in = @as([]const u8, @ptrCast(&storage))[0 .. @offsetOf(Storage, "Address") + addr_len],
    })).u.Status) {
        .SUCCESS => {},
        .CANCELLED => unreachable,
        .INSUFFICIENT_RESOURCES => return error.SystemResources,
        .CONNECTION_REFUSED => return error.ConnectionRefused,
        else => |status| return windows.unexpectedStatus(status),
    }
    return .{ .handle = socket_handle, .address = bound_address };
}