using System.Runtime.Remoting.Messaging;
namespace System.Net {
+#if NET_2_0
+ public static class Dns {
+#else
public sealed class Dns {
private Dns () {}
+#endif
+
static Dns ()
{
System.Net.Sockets.Socket.CheckProtocolSupport();
}
+#if !MOONLIGHT // global remove of async methods
+
private delegate IPHostEntry GetHostByNameCallback (string hostName);
private delegate IPHostEntry ResolveCallback (string hostName);
-
+#if NET_2_0
+ private delegate IPHostEntry GetHostEntryNameCallback (string hostName);
+ private delegate IPHostEntry GetHostEntryIPCallback (IPAddress hostAddress);
+ private delegate IPAddress [] GetHostAddressesCallback (string hostName);
+#endif
+
+#if NET_2_0
+ [Obsolete ("Use BeginGetHostEntry instead")]
+#endif
public static IAsyncResult BeginGetHostByName (string hostName,
AsyncCallback requestCallback, object stateObject)
{
if (hostName == null)
- throw new ArgumentNullException();
+ throw new ArgumentNullException ("hostName");
GetHostByNameCallback c = new GetHostByNameCallback (GetHostByName);
return c.BeginInvoke (hostName, requestCallback, stateObject);
}
+#if NET_2_0
+ [Obsolete ("Use BeginGetHostEntry instead")]
+#endif
public static IAsyncResult BeginResolve (string hostName,
AsyncCallback requestCallback, object stateObject)
{
if (hostName == null)
- throw new ArgumentNullException();
+ throw new ArgumentNullException ("hostName");
+
ResolveCallback c = new ResolveCallback (Resolve);
return c.BeginInvoke (hostName, requestCallback, stateObject);
}
- public static IPHostEntry EndGetHostByName (IAsyncResult asyncResult) \r
+#if NET_2_0
+ public static IAsyncResult BeginGetHostAddresses (string hostNameOrAddress,
+ AsyncCallback requestCallback, object stateObject)
+ {
+ if (hostNameOrAddress == null)
+ throw new ArgumentNullException ("hostName");
+ if (hostNameOrAddress == "0.0.0.0" || hostNameOrAddress == "::0")
+ throw new ArgumentException ("Addresses 0.0.0.0 (IPv4) " +
+ "and ::0 (IPv6) are unspecified addresses. You " +
+ "cannot use them as target address.",
+ "hostNameOrAddress");
+
+ GetHostAddressesCallback c = new GetHostAddressesCallback (GetHostAddresses);
+ return c.BeginInvoke (hostNameOrAddress, requestCallback, stateObject);
+ }
+
+ public static IAsyncResult BeginGetHostEntry (string hostNameOrAddress,
+ AsyncCallback requestCallback, object stateObject)
+ {
+ if (hostNameOrAddress == null)
+ throw new ArgumentNullException ("hostName");
+ if (hostNameOrAddress == "0.0.0.0" || hostNameOrAddress == "::0")
+ throw new ArgumentException ("Addresses 0.0.0.0 (IPv4) " +
+ "and ::0 (IPv6) are unspecified addresses. You " +
+ "cannot use them as target address.",
+ "hostNameOrAddress");
+
+ GetHostEntryNameCallback c = new GetHostEntryNameCallback (GetHostEntry);
+ return c.BeginInvoke (hostNameOrAddress, requestCallback, stateObject);
+ }
+
+ public static IAsyncResult BeginGetHostEntry (IPAddress address,
+ AsyncCallback requestCallback, object stateObject)
+ {
+ if (address == null)
+ throw new ArgumentNullException ("address");
+
+ GetHostEntryIPCallback c = new GetHostEntryIPCallback (GetHostEntry);
+ return c.BeginInvoke (address, requestCallback, stateObject);
+ }
+#endif
+
+#if NET_2_0
+ [Obsolete ("Use EndGetHostEntry instead")]
+#endif
+ public static IPHostEntry EndGetHostByName (IAsyncResult asyncResult)
{
if (asyncResult == null)
throw new ArgumentNullException ("asyncResult");
+
AsyncResult async = (AsyncResult) asyncResult;
GetHostByNameCallback cb = (GetHostByNameCallback) async.AsyncDelegate;
return cb.EndInvoke(asyncResult);
}
- public static IPHostEntry EndResolve (IAsyncResult asyncResult) \r
+#if NET_2_0
+ [Obsolete ("Use EndGetHostEntry instead")]
+#endif
+ public static IPHostEntry EndResolve (IAsyncResult asyncResult)
{
if (asyncResult == null)
throw new ArgumentNullException ("asyncResult");
return cb.EndInvoke(asyncResult);
}
+#if NET_2_0
+
+ public static IPAddress [] EndGetHostAddresses (IAsyncResult asyncResult)
+ {
+ if (asyncResult == null)
+ throw new ArgumentNullException ("asyncResult");
+
+ AsyncResult async = (AsyncResult) asyncResult;
+ GetHostAddressesCallback cb = (GetHostAddressesCallback) async.AsyncDelegate;
+ return cb.EndInvoke(asyncResult);
+ }
+
+ public static IPHostEntry EndGetHostEntry (IAsyncResult asyncResult)
+ {
+ if (asyncResult == null)
+ throw new ArgumentNullException ("asyncResult");
+ AsyncResult async = (AsyncResult) asyncResult;
+#if NET_2_0
+ if (async.AsyncDelegate is GetHostEntryIPCallback)
+ return ((GetHostEntryIPCallback) async.AsyncDelegate).EndInvoke (asyncResult);
+#endif
+ GetHostEntryNameCallback cb = (GetHostEntryNameCallback) async.AsyncDelegate;
+ return cb.EndInvoke(asyncResult);
+ }
+#endif
+
+#endif // !MOONLIGHT: global remove of async methods
+
+#if !TARGET_JVM
[MethodImplAttribute(MethodImplOptions.InternalCall)]
private extern static bool GetHostByName_internal(string host, out string h_name, out string[] h_aliases, out string[] h_addr_list);
[MethodImplAttribute(MethodImplOptions.InternalCall)]
private extern static bool GetHostName_internal(out string h_name);
-
- private static IPHostEntry hostent_to_IPHostEntry(string h_name, string[] h_aliases, string[] h_addrlist) \r
+#endif
+
+ private static IPHostEntry hostent_to_IPHostEntry(string h_name, string[] h_aliases, string[] h_addrlist)
{
IPHostEntry he = new IPHostEntry();
ArrayList addrlist = new ArrayList();
he.HostName = h_name;
he.Aliases = h_aliases;
for(int i=0; i<h_addrlist.Length; i++) {
- IPAddress newAddress = IPAddress.Parse(h_addrlist[i]);
-
- if( (Socket.SupportsIPv6 && newAddress.AddressFamily == AddressFamily.InterNetworkV6) ||
- (Socket.SupportsIPv4 && newAddress.AddressFamily == AddressFamily.InterNetwork) )
- addrlist.Add(newAddress);
+ try {
+ IPAddress newAddress = IPAddress.Parse(h_addrlist[i]);
+
+ if( (Socket.SupportsIPv6 && newAddress.AddressFamily == AddressFamily.InterNetworkV6) ||
+ (Socket.SupportsIPv4 && newAddress.AddressFamily == AddressFamily.InterNetwork) )
+ addrlist.Add(newAddress);
+ } catch (ArgumentNullException) {
+ /* Ignore this, as the
+ * internal call might have
+ * left some blank entries at
+ * the end of the array
+ */
+ }
}
if(addrlist.Count == 0)
return he;
}
- public static IPHostEntry GetHostByAddress(IPAddress address) \r
+#if NET_2_0
+ [Obsolete ("Use GetHostEntry instead")]
+#endif
+ public static IPHostEntry GetHostByAddress(IPAddress address)
{
if (address == null)
- throw new ArgumentNullException();
- return GetHostByAddress (address.ToString());
+ throw new ArgumentNullException ("address");
+
+ return GetHostByAddressFromString (address.ToString (), false);
}
-\r
- public static IPHostEntry GetHostByAddress(string address) \r
+
+#if NET_2_0
+ [Obsolete ("Use GetHostEntry instead")]
+#endif
+ public static IPHostEntry GetHostByAddress(string address)
{
if (address == null)
- throw new ArgumentNullException();
+ throw new ArgumentNullException ("address");
+
+ return GetHostByAddressFromString (address, true);
+ }
+ static IPHostEntry GetHostByAddressFromString (string address, bool parse)
+ {
// Undocumented MS behavior: when called with IF_ANY,
// this should return the local host
- if (address.Equals ("0.0.0.0"))
- return GetHostByAddress ("127.0.0.1");
+ if (address.Equals ("0.0.0.0")) {
+ address = "127.0.0.1";
+ parse = false;
+ }
- /// Must check the IP format, might send an exception if
- /// invalid string.
- IPAddress.Parse(address);
+ // Must check the IP format, might send an exception if invalid string.
+ if (parse)
+ IPAddress.Parse (address);
string h_name;
string[] h_aliases, h_addrlist;
-
- bool ret = GetHostByAddr_internal(address, out h_name,
- out h_aliases,
- out h_addrlist);
+#if TARGET_JVM
+ h_name = null;
+ h_aliases = null;
+ h_addrlist = null;
+ try {
+ java.net.InetAddress[] iaArr =
+ java.net.InetAddress.getAllByName(address);
+ if (iaArr != null && iaArr.Length > 0)
+ h_name = iaArr[0].getHostName();
+ if (iaArr != null && iaArr.Length > 0)
+ {
+ h_addrlist = new String[iaArr.Length];
+ for (int i = 0; i < h_addrlist.Length; i++)
+ h_addrlist[i] = iaArr[i].getHostAddress();
+ }
+ } catch (java.net.UnknownHostException jUHE) {
+ throw new SocketException((int)SocketError.HostNotFound, jUHE.Message);
+ }
+#else
+ bool ret = GetHostByAddr_internal(address, out h_name, out h_aliases, out h_addrlist);
if (!ret)
throw new SocketException(11001);
+#endif
+ return (hostent_to_IPHostEntry (h_name, h_aliases, h_addrlist));
+
+ }
- return(hostent_to_IPHostEntry(h_name, h_aliases,
- h_addrlist));
+#if NET_2_0
+ public
+#else
+ internal
+#endif
+ static IPHostEntry GetHostEntry (string hostNameOrAddress)
+ {
+ if (hostNameOrAddress == null)
+ throw new ArgumentNullException ("hostNameOrAddress");
+ if (hostNameOrAddress == "0.0.0.0" || hostNameOrAddress == "::0")
+ throw new ArgumentException ("Addresses 0.0.0.0 (IPv4) " +
+ "and ::0 (IPv6) are unspecified addresses. You " +
+ "cannot use them as target address.",
+ "hostNameOrAddress");
+
+ IPAddress addr;
+ if (hostNameOrAddress.Length > 0 && IPAddress.TryParse (hostNameOrAddress, out addr))
+ return GetHostEntry (addr);
+
+ return GetHostByName (hostNameOrAddress);
}
- public static IPHostEntry GetHostByName(string hostName) \r
+#if NET_2_0
+ public
+#else
+ internal
+#endif
+ static IPHostEntry GetHostEntry (IPAddress address)
{
- if (hostName == null)
- throw new ArgumentNullException();
+ if (address == null)
+ throw new ArgumentNullException ("address");
+
+ return GetHostByAddressFromString (address.ToString (), false);
+ }
+
+#if NET_2_0
+ public
+#else
+ internal
+#endif
+ static IPAddress [] GetHostAddresses (string hostNameOrAddress)
+ {
+ if (hostNameOrAddress == null)
+ throw new ArgumentNullException ("hostNameOrAddress");
+ if (hostNameOrAddress == "0.0.0.0" || hostNameOrAddress == "::0")
+ throw new ArgumentException ("Addresses 0.0.0.0 (IPv4) " +
+ "and ::0 (IPv6) are unspecified addresses. You " +
+ "cannot use them as target address.",
+ "hostNameOrAddress");
+
+ IPAddress addr;
+ if (hostNameOrAddress.Length > 0 && IPAddress.TryParse (hostNameOrAddress, out addr))
+ return new IPAddress[1] { addr };
+
+ return GetHostEntry (hostNameOrAddress).AddressList;
+ }
+
+#if NET_2_0
+ [Obsolete ("Use GetHostEntry instead")]
+#endif
+ public static IPHostEntry GetHostByName (string hostName)
+ {
+ if (hostName == null)
+ throw new ArgumentNullException ("hostName");
+#if TARGET_JVM
+ if (hostName.Length == 0)
+ hostName = "localhost";
+ try {
+ java.net.InetAddress[] iaArr = java.net.InetAddress.getAllByName(hostName);
+ IPHostEntry host = new IPHostEntry();
+ if (iaArr != null && iaArr.Length > 0)
+ {
+ host.HostName = iaArr[0].getHostName();
+ IPAddress[] ipArr = new IPAddress[iaArr.Length];
+ for (int i = 0; i < iaArr.Length; i++)
+ ipArr[i] = IPAddress.Parse(iaArr[i].getHostAddress());
+
+ host.AddressList = ipArr;
+ }
+ return host;
+ } catch (java.net.UnknownHostException jUHE) {
+ throw new SocketException((int)SocketError.HostNotFound, jUHE.Message);
+ }
+#else
string h_name;
string[] h_aliases, h_addrlist;
- bool ret = GetHostByName_internal(hostName, out h_name,
- out h_aliases,
- out h_addrlist);
+ bool ret = GetHostByName_internal(hostName, out h_name, out h_aliases, out h_addrlist);
if (ret == false)
throw new SocketException(11001);
- return(hostent_to_IPHostEntry(h_name, h_aliases,
- h_addrlist));
+ return(hostent_to_IPHostEntry(h_name, h_aliases, h_addrlist));
+#endif
}
- /// <summary>
- /// This method returns the host name associated with the local host.
- /// </summary>
- public static string GetHostName() \r
+ public static string GetHostName ()
{
+#if TARGET_JVM
+ return java.net.InetAddress.getLocalHost ().getHostName ();
+#else
string hostName;
bool ret = GetHostName_internal(out hostName);
throw new SocketException(11001);
return hostName;
+#endif
}
- /// <summary>
- /// This method resolves a DNS-style host name or IP
- /// address.
- /// </summary>
- /// <param name=hostName>
- /// A string containing either a DNS-style host name (e.g.
- /// www.go-mono.com) or IP address (e.g. 129.250.184.233).
- /// </param>
- public static IPHostEntry Resolve(string hostName) \r
+#if NET_2_0
+ [Obsolete ("Use GetHostEntry instead")]
+#endif
+ public static IPHostEntry Resolve(string hostName)
{
if (hostName == null)
- throw new ArgumentNullException();
+ throw new ArgumentNullException ("hostName");
IPHostEntry ret = null;
- try {\r
- ret = GetHostByAddress(hostName);\r
+ try {
+ ret = GetHostByAddress(hostName);
}
catch{}
- if(ret == null)\r
- ret = GetHostByName(hostName);\r
+ if(ret == null)
+ ret = GetHostByName(hostName);
return ret;
}