Provided by: x11-xserver-utils_7.6+3_i386 bug


       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]  [-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
       allocates  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
       conjunction  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 /var/log/wtmp.
              The  special  name  "none"  disables writing records to the wtmp

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

       -L lastlog-file
              This  specifies  an   alternate   lastlog   file,   instead   of
              /var/log/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
              sessions, 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
              initiated  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
              determined  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.

       -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