repo/luan: core/src/luan/modules/IoLuan.java comparison

add Io.my_ips()

author	Franklin Schmidt <fschmidt@gmail.com>
date	Tue, 14 Jun 2016 18:24:28 -0600
parents	e44e98fe9de8
children	f8a7cc1fd3f6

comparison

equal deleted inserted replaced

-:e44e98fe9de8
+:2486fa6490c6
 import java.io.FileNotFoundException;
 import java.net.URL;
 import java.net.Socket;
 import java.net.ServerSocket;
 import java.net.InetAddress;
+import java.net.Inet4Address;
+import java.net.NetworkInterface;
 import java.net.MalformedURLException;
 import java.net.UnknownHostException;
+import java.util.Enumeration;
 import java.util.Map;
 import java.util.zip.ZipOutputStream;
 import java.util.zip.ZipEntry;
 import luan.Luan;
 import luan.LuanState;
 		try {
 			return InetAddress.getByName(domain).getHostAddress();
 		} catch(UnknownHostException e) {
 			return null;
 		}
+	}
+	public static LuanTable my_ips() throws IOException {
+		LuanTable tbl = new LuanTable();
+		for( Enumeration<NetworkInterface> e1 = NetworkInterface.getNetworkInterfaces(); e1.hasMoreElements(); ) {
+			NetworkInterface ni = e1.nextElement();
+			for( Enumeration<InetAddress> e2 = ni.getInetAddresses(); e2.hasMoreElements(); ) {
+				InetAddress ia = e2.nextElement();
+				if( ia instanceof Inet4Address )
+					tbl.rawPut(ia.getHostAddress(),true);
+			}
+		}
+		return tbl;
 	}
 	// files maps zip name to uri
 	public static void zip(LuanState luan,String zipUri,LuanTable files) throws LuanException, IOException {

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