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SESSREG(1)              FreeBSD General Commands Manual             SESSREG(1)

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

       sessreg [-w wtmp-file] [-u utmp-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 entries for xdm

       System V has a better interface to /etc/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 /etc/utmp 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 that /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 /usr/X11R6/lib/xdm/Xservers $USER

       and in Xreset:

              sessreg -d -l $DISPLAY -x /usr/X11R6/lib/xdm/Xservers $USER

       -w wtmp-file
              This specifies an alternate wtmp file, instead of /usr/adm/wtmp
              for BSD or /etc/wtmp for sysV.  The special name "none" disables
              writing records to /usr/adm/wtmp.

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

       -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/ttys file.  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.


       Keith Packard, MIT X Consortium

XFree86                          Version 4.7.0                      SESSREG(1)


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