--- FreeWnn-1.1.1-a021/Wnn/jserver/de.c.orig	2012-11-16 20:41:53.701176783 +0100
+++ FreeWnn-1.1.1-a021/Wnn/jserver/de.c	2012-11-16 20:45:47.327838583 +0100
@@ -240,7 +240,8 @@
   /* option default */
   option_flag = (OPT_FORK & ~OPT_VERBOSE);
 
-  setuid (geteuid ());
+  setregid(getegid(), getegid());
+  setreuid(geteuid(), geteuid());
   get_options (argc, argv);
   print_version();
   log_debug("invoked as %s.", argv[0]);
--- FreeWnn-1.1.1-a017/Wnn/uum/jhlp.c.orig	Mon Jan 22 18:28:06 2001
+++ FreeWnn-1.1.1-a017/Wnn/uum/jhlp.c	Mon Jan 22 18:32:53 2001
@@ -1297,8 +1297,8 @@
       dup2 (ttypfd, 1);
       dup2 (ttypfd, 2);
 #else /* linux */
-      setgid (getgid ());
-      setuid (getuid ());
+      setregid (getegid(), getegid());
+      setreuid (geteuid(), geteuid());
       close (0);
       close (1);
       close (2);