ws2_32: Explicitly return WSAENOTSOCK for a file handle in getsockopt() except SO_OPENTYPE.

dlls/ws2_32/socket.c

@@ -1363,6 +1363,13 @@ int WINAPI getsockopt( SOCKET s, int level, int optname, char *optval, int *optl
           debugstr_sockopt(level, optname), debugstr_optval(optval, 0),
           optlen, optlen ? *optlen : 0);
 
+    if ((level != SOL_SOCKET || optname != SO_OPENTYPE) &&
+        !socket_list_find( s ))
+    {
+        SetLastError( WSAENOTSOCK );
+        return SOCKET_ERROR;
+    }
+
     switch(level)
     {
     case SOL_SOCKET:

dlls/ws2_32/tests/sock.c

@@ -11693,8 +11693,8 @@ static void test_sockopt_validity(void)
     };
     static const struct sockopt_validity_test file_handle_tests[] =
     {
-        { -1,                         WSAENOTSOCK,     0,          TRUE },
-        { SO_TYPE,                    WSAENOTSOCK,     0,          TRUE },
+        { -1,                         WSAENOTSOCK                       },
+        { SO_TYPE,                    WSAENOTSOCK                       },
         { SO_OPENTYPE                                                   },
         {}
     };