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SESSREG(1)		    General Commands Manual		    SESSREG(1)

       sessreg - manage	utmp/wtmp entries for non-init clients

       sessreg	[-w wtmp-file] [-u utmp-file] [-L lastlog-file]	[-l line-name]
       [-h host-name] [-s slot-number] [-x Xservers-file] [-t ttys-file]  [-V]
       [-a] [-d] user-name

       Sessreg	is a simple program for	managing utmp/wtmp and lastlog entries
       for xdm sessions.

       System V	has a better interface to utmp than BSD; it dynamically	 allo-
       cates  entries  in the file, instead of writing them at fixed positions
       indexed by position in /etc/ttys.

       To manage BSD-style utmp	files, sessreg has two	strategies.   In  con-
       junction	 with  xdm,  the  -x  option  counts  the  number  of lines in
       /etc/ttys and then adds to that the number of the line in the  Xservers
       file  which  specifies the display.  The	display	name must be specified
       as the "line-name" using	the -l option.	This sum is used as the	"slot-
       number"	in  the	 utmp file that	this entry will	be written at.	In the
       more general case, the -s option	specifies  the	slot-number  directly.
       If for some strange reason your system uses a file other	than /etc/ttys
       to manage init, the -t option can direct	sessreg	to look	elsewhere  for
       a count of terminal sessions.

       Conversely,  System  V managers will not	ever need to use these options
       (-x, -s and -t).	 To make the program easier to document	 and  explain,
       sessreg	accepts	the BSD-specific flags in the System V environment and
       ignores them.

       BSD and Linux also have a  host-name  field  in	the  utmp  file	 which
       doesn't exist in	System V.  This	option is also ignored by the System V
       version of sessreg.

       In Xstartup, place a call like:

	      sessreg -a -l $DISPLAY -x	/etc/X11/xdm/Xservers $USER

       and in Xreset:

	      sessreg -d -l $DISPLAY -x	/etc/X11/xdm/Xservers $USER

       -w wtmp-file
	      This specifies an	alternate wtmp file, instead  of  _PATH_WTMPX.
	      The  special  name  "none"  disables writing records to the wtmp

       -u utmp-file
	      This specifies an	alternate utmp file, instead  of  _PATH_UTMPX.
	      The  special  name  "none"  disables writing records to the utmp

       -L lastlog-file
	      This  specifies  an   alternate	lastlog	  file,	  instead   of
	      /usr/adm/lastlog,	 if  the platform supports lastlog files.  The
	      special name "none" disables  writing  records  to  the  lastlog

       -l line-name
	      This  describes the "line" name of the entry.  For terminal ses-
	      sions, this is the final pathname	segment	of the terminal	device
	      filename	(e.g.  ttyd0).	 For X sessions, it should probably be
	      the local	display	name given to the users	session	(e.g. :0).  If
	      none  is	specified,  the	 terminal name will be determined with
	      ttyname(3) and stripped of leading components.

       -h host-name
	      This is set for BSD hosts	to indicate that the session was  ini-
	      tiated  from  a remote host.  In typical xdm usage, this options
	      is not used.

       -s slot-number
	      Each potential session has a unique slot number in BSD  systems,
	      most  are	 identified  by	 the  position of the line-name	in the
	      /etc/ttysfile.  This option overrides the	default	 position  de-
	      termined	with ttyslot(3).  This option is inappropriate for use
	      with xdm,	the -x option is more useful.

       -x Xservers-file
	      As X sessions are	one-per-display, and each display  is  entered
	      in this file, this options sets the slot-number to be the	number
	      of lines in the ttys-file	plus the index into this file that the
	      line-name	is found.

       -t ttys-file
	      This specifies an	alternate file which the -x option will	use to
	      count the	number of terminal sessions on a host.

       -V     This option causes the command to	print its version and exit.

       -a     This session should be added to utmp/wtmp.

       -d     This session should be deleted from  utmp/wtmp.	One  of	 -a/-d
	      must be specified.

       xdm(1), utmpx(5)

       Keith Packard, MIT X Consortium

X Version 11			 sessreg 1.0.8			    SESSREG(1)


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