Imported Upstream version 5.18.0.142

Former-commit-id: 7467d4b717762eeaf652d77f1486dd11ffb1ff1f

mcs/class/System/System.Net.NetworkInformation/Win32IPAddressCollection.cs

@@ -0,0 +1,92 @@
+//
+// System.Net.NetworkInformation.IPAddressCollection
+//
+// Authors:
+//	Gonzalo Paniagua Javier (gonzalo@novell.com)
+//	Atsushi Enomoto (atsushi@ximian.com)
+//
+// Copyright (c) 2006-2007 Novell, Inc. (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+#if WIN_PLATFORM
+using System.Runtime.InteropServices;
+
+namespace System.Net.NetworkInformation {
+	class Win32IPAddressCollection : IPAddressCollection
+	{
+		public static readonly Win32IPAddressCollection Empty = new Win32IPAddressCollection (IntPtr.Zero);
+
+		// for static methods
+		Win32IPAddressCollection ()
+		{
+		}
+
+		public Win32IPAddressCollection (params IntPtr [] heads)
+		{
+			foreach (IntPtr head in heads)
+				AddSubsequentlyString (head);
+		}
+
+		public Win32IPAddressCollection (params Win32_IP_ADDR_STRING [] al)
+		{
+			foreach (Win32_IP_ADDR_STRING a in al) {
+				if (String.IsNullOrEmpty (a.IpAddress))
+					continue;
+				InternalAdd (IPAddress.Parse (a.IpAddress));
+				AddSubsequentlyString (a.Next);
+			}
+		}
+
+		public static Win32IPAddressCollection FromAnycast (IntPtr ptr)
+		{
+			Win32IPAddressCollection c = new Win32IPAddressCollection ();
+			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 (a.Address.GetIPAddress ());
+			}
+			return c;
+		}
+
+		public static Win32IPAddressCollection FromDnsServer (IntPtr ptr)
+		{
+			Win32IPAddressCollection c = new Win32IPAddressCollection ();
+			Win32_IP_ADAPTER_DNS_SERVER_ADDRESS a;
+			for (IntPtr p = ptr; p != IntPtr.Zero; p = a.Next) {
+				a = (Win32_IP_ADAPTER_DNS_SERVER_ADDRESS) Marshal.PtrToStructure (p, typeof (Win32_IP_ADAPTER_DNS_SERVER_ADDRESS));
+// FIXME: It somehow fails here. Looks like there is something wrong.
+//if (a.Address.Sockaddr == IntPtr.Zero) throw new Exception ("pointer " + p + " a.length " + a.Address.SockaddrLength);
+				c.InternalAdd (a.Address.GetIPAddress ());
+			}
+			return c;
+		}
+
+		void AddSubsequentlyString (IntPtr head)
+		{
+			Win32_IP_ADDR_STRING a;
+			for (IntPtr p = head; p != IntPtr.Zero; p = a.Next) {
+				a = (Win32_IP_ADDR_STRING) Marshal.PtrToStructure (p, typeof (Win32_IP_ADDR_STRING));
+				InternalAdd (IPAddress.Parse (a.IpAddress));
+			}
+		}
+	}
+}
+#endif