internal static IPAddressInformationCollection ToAddressInformationCollection(IntPtr ptr, IPVersion versionSupported)
{
IPAddressInformationCollection informations = new IPAddressInformationCollection();
if (ptr != IntPtr.Zero)
{
IPEndPoint point;
IpAdapterAddress adapterAddress = (IpAdapterAddress)Marshal.PtrToStructure(ptr, typeof(IpAdapterAddress));
AddressFamily family = (adapterAddress.address.addressLength > 0x10) ? AddressFamily.InterNetworkV6 : AddressFamily.InterNetwork;
SocketAddress socketAddress = new SocketAddress(family, adapterAddress.address.addressLength);
Marshal.Copy(adapterAddress.address.address, socketAddress.m_Buffer, 0, adapterAddress.address.addressLength);
if (family == AddressFamily.InterNetwork)
{
point = (IPEndPoint)IPEndPoint.Any.Create(socketAddress);
}
else
{
point = (IPEndPoint)IPEndPoint.IPv6Any.Create(socketAddress);
}
informations.InternalAdd(new SystemIPAddressInformation(adapterAddress, point.Address));
while (adapterAddress.next != IntPtr.Zero)
{
adapterAddress = (IpAdapterAddress)Marshal.PtrToStructure(adapterAddress.next, typeof(IpAdapterAddress));
family = (adapterAddress.address.addressLength > 0x10) ? AddressFamily.InterNetworkV6 : AddressFamily.InterNetwork;
if (((family == AddressFamily.InterNetwork) && ((versionSupported & IPVersion.IPv4) > IPVersion.None)) || ((family == AddressFamily.InterNetworkV6) && ((versionSupported & IPVersion.IPv6) > IPVersion.None)))
{
socketAddress = new SocketAddress(family, adapterAddress.address.addressLength);
Marshal.Copy(adapterAddress.address.address, socketAddress.m_Buffer, 0, adapterAddress.address.addressLength);
if (family == AddressFamily.InterNetwork)
{
point = (IPEndPoint)IPEndPoint.Any.Create(socketAddress);
}
else
{
point = (IPEndPoint)IPEndPoint.IPv6Any.Create(socketAddress);
}
informations.InternalAdd(new SystemIPAddressInformation(adapterAddress, point.Address));
}
}
}
return(informations);
}
static IPAddressInformationCollection Win32FromAnycast(IntPtr ptr)
{
var c = new IPAddressInformationCollection();
Win32_IP_ADAPTER_ANYCAST_ADDRESS a;
for (IntPtr p = ptr; p != IntPtr.Zero; p = a.Next)
{
a = (Win32_IP_ADAPTER_ANYCAST_ADDRESS)Marshal.PtrToStructure(p, typeof(Win32_IP_ADAPTER_ANYCAST_ADDRESS));
c.InternalAdd(new SystemIPAddressInformation(
a.Address.GetIPAddress(),
a.LengthFlags.IsDnsEligible,
a.LengthFlags.IsTransient));
}
return(c);
}
internal static IPAddressInformationCollection MarshalIpAddressInformationCollection(IntPtr ptr)
{
IPAddressInformationCollection addressList = new IPAddressInformationCollection();
while (ptr != IntPtr.Zero)
{
IpAdapterAddress addressStructure =
(IpAdapterAddress)Marshal.PtrToStructure(ptr, typeof(IpAdapterAddress));
IPAddress address = addressStructure.address.MarshalIPAddress();
addressList.InternalAdd(new SystemIPAddressInformation(address, addressStructure.flags));
ptr = addressStructure.next;
}
return(addressList);
}