SESSREG(1)                      X11 R4.11MU05                     SESSREG(1)


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

SYNOPSIS
       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

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

       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 also has 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.

USAGE
       In Xstartup, place a call like:

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

       and in Xreset:

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


OPTIONS
       -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.

SEE ALSO
       xdm(1)

COPYRIGHT
       Copyright 1988, Massachusetts Institute of Technology.
       See X(1) for a full statement of rights and permissions.

AUTHOR
       Keith Packard, MIT X Consortium


Licensed material--property of copyright holder(s)