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SESSREG(1)                  General Commands Manual                 SESSREG(1)
NAME
       sessreg - manage utmp (5)/wtmp (5) entries for non-init clients
SYNOPSIS
       sessreg  [-w  wtmp  (5)-file]  [-u utmp (5)-file] [-L lastlog-file] [-l
       line-name] [-h host-name] [-s slot-number] [-x Xservers-file] [-t ttys-
       file] [-V] [-a] [-d] user-name
DESCRIPTION
       Sessreg  is a simple program for managing utmp (5)/wtmp (5) 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.
       This version of sessreg is built using the modern POSIX  pututxline(3c)
       interfaces,  which  no  longer  require  the slot-number, ttys-file, or
       Xservers-file mappings.  For  compatibility  with  older  versions  and
       other  operating  systems,  the  -s, -t, and -x flags are accepted, but
       ignored.
USAGE
       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
OPTIONS
       -w wtmp (5)-file
              This  specifies  an  alternate  wtmp  (5)   file,   instead   of
              /var/log/wtmp.  The special name "none" disables writing records
              to the wtmp (5) file.
       -u utmp (5)-file
              This  specifies  an  alternate  utmp  (5)   file,   instead   of
              /var/run/utmp.  The special name "none" disables writing records
              to the utmp (5) file.
       -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
              file.
       -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 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.  This option is
              accepted for compatibility, but does nothing in this version  of
              sessreg.
       -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.  This option is accepted for  compatibility,
              but does nothing in this version of sessreg.
       -t ttys-file
              This specifies an alternate file which the -x option will use to
              count the number of terminal sessions on a host.  This option is
              accepted  for compatibility, but does nothing in this version of
              sessreg.
       -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.
SEE ALSO
       xdm(1), utmp(5), wtmp(5)
AUTHOR
       Keith Packard, MIT X Consortium
X Version 11                     sessreg 1.1.0                      SESSREG(1)