--- libaitsess/inc/defs.h	2011/09/07 13:11:55	1.3
+++ libaitsess/inc/defs.h	2011/09/07 15:52:35	1.3.2.1
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: defs.h,v 1.3 2011/09/07 13:11:55 misho Exp $
+* $Id: defs.h,v 1.3.2.1 2011/09/07 15:52:35 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -48,6 +48,8 @@ SUCH DAMAGE.
 
 #define STRSIZ		256
 
+#define SESS_AIT_MAGIC	0x3CC3
+
 #define MEM_MODE	0640
 #define MEM_DELIM	":"
 
@@ -70,6 +72,11 @@ union semun {
 	unsigned short	*array;		/* array for GETALL & SETALL */
 };
 #endif
+
+typedef struct _tagSessHdr {
+	uint16_t	hdr_magic;
+	uint16_t	hdr_argc;
+} sess_hdr_t;
 
 
 extern int sess_Errno;