added ascii check to getAddrInfo and implemented detach on socket object

Author: Kolpa

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/SocketModuleBuiltins.java

@@ -47,6 +47,7 @@
 import java.net.Inet4Address;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.LinkedList;
@@ -59,7 +60,6 @@
 import com.oracle.graal.python.builtins.PythonBuiltinClassType;
 import com.oracle.graal.python.builtins.PythonBuiltins;
 import com.oracle.graal.python.builtins.objects.PNone;
-import com.oracle.graal.python.builtins.objects.exception.OSErrorEnum;
 import com.oracle.graal.python.builtins.objects.ints.PInt;
 import com.oracle.graal.python.builtins.objects.list.PList;
 import com.oracle.graal.python.builtins.objects.socket.PSocket;
@@ -76,7 +76,6 @@
 import com.oracle.truffle.api.dsl.GenerateNodeFactory;
 import com.oracle.truffle.api.dsl.NodeFactory;
 import com.oracle.truffle.api.dsl.Specialization;
-import com.oracle.truffle.api.frame.VirtualFrame;
 
 import org.graalvm.nativeimage.ImageInfo;
 
@@ -558,6 +557,10 @@ Object getAddrInfo(String host, int port, int family, int type, int proto, int f
         @Specialization
         @TruffleBoundary
         Object getAddrInfo(String host, String port, int family, int type, int proto, int flags) {
+            if (!StandardCharsets.US_ASCII.newEncoder().canEncode(port)) {
+                throw raise(PythonBuiltinClassType.UnicodeEncodeError);
+            }
+
             if (services == null) {
                 services = parseServices();
             }

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/socket/SocketBuiltins.java

@@ -570,6 +570,16 @@ int fileno(PSocket socket) {
         }
     }
 
+    // detach
+    @Builtin(name = "detach", minNumOfPositionalArgs = 1)
+    @GenerateNodeFactory
+    abstract static class SockDetachNode extends PythonUnaryBuiltinNode {
+        @Specialization
+        int detach(PSocket socket) {
+            return socket.getFileno();
+        }
+    }
+
     @Builtin(name = "_setsockopt", minNumOfPositionalArgs = 4)
     @GenerateNodeFactory
     abstract static class SetSockOptNode extends PythonBuiltinNode {