129 lines
5.0 KiB
Groff
129 lines
5.0 KiB
Groff
.\" $Xorg: sessreg.man,v 1.4 2001/02/09 02:05:40 xorgcvs Exp $
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.\" Copyright 1994, 1998 The Open Group
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.\"
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.\" Permission to use, copy, modify, distribute, and sell this software and its
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.\" documentation for any purpose is hereby granted without fee, provided that
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.\" the above copyright notice appear in all copies and that both that
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.\" copyright notice and this permission notice appear in supporting
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.\" documentation.
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.\"
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.\" The above copyright notice and this permission notice shall be included
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.\" in all copies or substantial portions of the Software.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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.\" IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
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.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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.\" OTHER DEALINGS IN THE SOFTWARE.
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.\"
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.\" Except as contained in this notice, the name of The Open Group shall
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.\" not be used in advertising or otherwise to promote the sale, use or
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.\" other dealings in this Software without prior written authorization
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.\" from The Open Group.
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.\"
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.\" $XFree86: xc/programs/xdm/sessreg.man,v 1.7 2001/04/23 20:31:09 dawes Exp $
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.\"
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.TH SESSREG __appmansuffix__ __xorgversion__
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.SH NAME
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sessreg \- manage utmp/wtmp entries for non-init clients
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.SH SYNOPSIS
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.B sessreg
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[-w \fIwtmp-file\fP]
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[-u \fIutmp-file\fP]
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[-l \fIline-name\fP]
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[-h \fIhost-name\fP]
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[-s \fIslot-number\fP]
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[-x \fIXservers-file\fP]
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[-t \fIttys-file\fP]
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[-a]
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[-d]
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\fIuser-name\fP
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.SH DESCRIPTION
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.PP
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\fISessreg\fP is a simple program for managing utmp/wtmp
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entries for xdm sessions.
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.PP
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System V has a better interface to utmp than BSD; it
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dynamically allocates entries in the file, instead of writing them at fixed
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positions indexed by position in
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.BR __ttys_file__ .
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.PP
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To manage BSD-style utmp files, \fIsessreg\fP has two strategies. In
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conjunction with xdm, the -x option counts the number of lines in
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.B __ttys_file__
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and then adds to that the number of the line in the Xservers file which
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specifies the display. The display name must be specified as the
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"line-name" using the -l option. This sum is used as the "slot-number" in
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the utmp file that this entry will be written at. In the more general case,
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the -s option specifies the slot-number directly. If for some strange reason
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your system uses a file other than
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.B __ttys_file__
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to manage init, the -t option can direct
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\fIsessreg\fP to look elsewhere for a count of terminal sessions.
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.PP
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Conversely, System V managers will not ever need to use these options (-x,
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-s and -t). To make the program easier to document and explain,
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\fIsessreg\fP accepts the BSD-specific flags in the System V
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environment and ignores them.
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.PP
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BSD and Linux also have a host-name field in the utmp file which doesn't
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exist in System V. This option is also ignored by the System V version of
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\fIsessreg\fP.
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.SH USAGE
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.PP
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In Xstartup, place a call like:
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.nf
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sessreg -a -l $DISPLAY -x /etc/X11/xdm/Xservers $USER
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.fi
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and in Xreset:
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.nf
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sessreg -d -l $DISPLAY -x /etc/X11/xdm/Xservers $USER
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.fi
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.SH OPTIONS
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.IP "\fB-w\fP \fIwtmp-file\fP"
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This specifies an alternate wtmp file, instead of
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.BR __wtmp_file__ .
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The special name "none" disables writing records to the wtmp file.
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.IP "\fB-u\fP \fIutmp-file\fP"
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This specifies an alternate utmp file, instead of
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.BR __utmp_file__ .
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The special name "none" disables writing records to the utmp file.
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.IP "\fB-l\fP \fIline-name\fP"
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This describes the "line" name of the entry. For terminal sessions,
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this is the final pathname segment of the terminal device filename
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(e.g. ttyd0). For X sessions, it should probably be the local display name
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given to the users session (e.g. :0). If none is specified, the
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terminal name will be determined with ttyname(3) and stripped of leading
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components.
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.IP "\fB-h\fP \fIhost-name\fP"
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This is set for BSD hosts to indicate that the session was initiated from
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a remote host. In typical xdm usage, this options is not used.
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.IP "\fB-s\fP \fIslot-number\fP"
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Each potential session has a unique slot number in BSD systems, most are
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identified by the position of the \fIline-name\fP in the
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.BR __ttys_file__ file.
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This option overrides the default position determined with ttyslot(3).
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This option is inappropriate for use with xdm, the -x option is more useful.
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.IP "\fB-x\fP \fIXservers-file\fP"
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As X sessions are one-per-display, and each display is entered in this file,
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this options sets the \fIslot-number\fP to be the number of lines in
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the \fIttys-file\fP plus the index into this file that the \fIline-name\fP
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is found.
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.IP "\fB-t\fP \fIttys-file\fP"
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This specifies an alternate file which the \fI-x\fP option will use to count
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the number of terminal sessions on a host.
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.IP "\fB-a\fP"
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This session should be added to utmp/wtmp.
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.IP "\fB-d\fP"
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This session should be deleted from utmp/wtmp. One of -a/-d must
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be specified.
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.SH "SEE ALSO"
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xdm(__appmansuffix__)
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.SH AUTHOR
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Keith Packard, MIT X Consortium
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