--- sesman/session.c.orig	2011-03-12 16:10:35.000000000 +0900
+++ sesman/session.c	2011-10-27 12:13:11.000000000 +0900
@@ -16,7 +16,47 @@
    xrdp: A Remote Desktop Protocol server.
    Copyright (C) Jay Sorg 2005-2008
 */
-
+/*
+ * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
+ *                    All rights reserved
+ *
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose.  Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
+ *
+ * SSH2 support by Markus Friedl.
+ * Copyright (c) 2000, 2001 Markus Friedl.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * Copyright (c) 2011 Iwao, Koichiro <meta@club.kyutech.ac.jp>, 
+ *                    Kyushu Institute of Technology.
+ *                    All rights reserved.
+ *
+ * 	from: OpenBSD: session.c,v 1.252 2010/03/07 11:57:13 dtucker Exp
+ *            with some ideas about process grouping from OpenSSH to xrdp
+ * 	       
+ */
 /**
  *
  * @file session.c
@@ -373,6 +413,33 @@
     g_sprintf(geometry, "%dx%d", width, height);
     g_sprintf(depth, "%d", bpp);
     g_sprintf(screen, ":%d", display);
+#ifdef __FreeBSD__
+    /*
+     * Create a new session and process group since 4.4BSD 
+     * setlogin affects the entire process group.
+     */
+    pid_t bsdsespid = g_fork();
+
+    if (bsdsespid == -1)
+    {
+    }
+    else if (bsdsespid == 0) /* BSD session leader */
+    {
+        if (setsid() < 0)
+        {
+          log_message(&(g_cfg->log), LOG_LEVEL_ERROR,
+            "setsid failed: %.100s", strerror(errno));
+        }
+
+        if (setlogin(username) < 0)
+        {
+          log_message(&(g_cfg->log), LOG_LEVEL_ERROR,
+            "setlogin failed: %.100s", strerror(errno));
+        }
+    }
+
+    g_waitpid(bsdsespid);
+#endif
     wmpid = g_fork();
     if (wmpid == -1)
     {