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243 lines
6.3 KiB
Bash
243 lines
6.3 KiB
Bash
#!/bin/bash
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#
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# CDM: The Console Display Manager
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#
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# Copyright (C) 2009-2011, Daniel J Griffiths <ghost1227@archlinux.us>
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# Thanks to:
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#
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# Andrwe beta-testing and submitting the fix for the all
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# important X incrementation function
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# brisbin33 code cleanup
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# tigrmesh finding a critical issue with the gnome-session handler
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# Profjim several incredibly useful patches
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# lambchops468 consolekit and hibernation patches
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301, USA.
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name="Console Display Manager"
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ver="0.5.3"
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trap '' SIGINT SIGTSTP
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source /etc/init.d/functions.sh
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dialogrc=${dialogrc:-}
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userclientrc=$HOME/.xinitrc
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sysclientrc=/etc/X11/xinit/xinitrc
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# userserverrc=$HOME/.xserverrc
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# sysserverrc=/etc/X11/xinit/xserverrc
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# Source cdm configurations.
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if [[ -n "$1" ]]; then
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source "$1"
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elif [[ -f "$HOME/.cdmrc" ]]; then
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source "$HOME/.cdmrc"
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elif [[ -f /etc/cdmrc ]]; then
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source /etc/cdmrc
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fi
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# Offer all available sessions in /etc/X11/Sessions
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# if wmbinlist if not explicitly set in cdmrc
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if [[ "${#wmbinlist[@]}" -eq 0 ]]; then
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wmbinlist=($(ls /etc/X11/Sessions))
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wmdisplist=($(echo ${wmbinlist[@]^}))
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fi
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# If X is already running and locktty=yes, activate it,
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# otherwise, increment.
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if $(yesno locktty); then
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# Verify display exists
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if [[ -n "${display//[0-9]/}" ]]; then
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display=0
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fi
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# Activate existing X session
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if xdpyinfo -display :${display}.0 &> /dev/null; then
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let tty=display+xtty
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chvt ${tty}
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exit 0
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fi
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else
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# Get the first empty display
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display=0
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while [[ ${display} -lt 7 ]]; do
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if dpyinfo=$(xdpyinfo -display :${display}.0 2>&1 1>/dev/null); then
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let display=display+1
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elif [[ $dpyinfo = No\ protocol\ specified* ]]; then
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# Display is in use by another user
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let display=display+1
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else
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break
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fi
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done
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fi
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mainmenu() {
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# Generate main menu
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count=0
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menu=$(
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while [[ ${count} -lt ${#wmdisplist[@]} ]]; do
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echo -ne "$((count+countfrom)) ${wmdisplist[${count}]} "
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let count=count+1
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done
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)
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# Check if console access is allowed
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if $(yesno allowconsole); then
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if ! $(yesno allowshutdown); then
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let halt=99
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fi
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let console=${#wmdisplist[@]}+countfrom
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menu="${menu} ${console} Console "
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fi
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# Check if shutdown access is allowed
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if $(yesno allowshutdown); then
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if ! $(yesno allowconsole); then
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let halt=${#wmdisplist[@]}
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else
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let halt=${#wmdisplist[@]}+1
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fi
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let halt=halt+countfrom
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menu="${menu} ${halt} Shutdown "
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fi
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# Override dialog display if only one option is available
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if ! $(yesno allowconsole) && ! $(yesno allowshutdown) && [[ ${#wmdisplist[@]} == 1 ]]; then
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wm=$countfrom
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else
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# Display selection dialog
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wm=$(
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DIALOGRC="$dialogrc" dialog --colors \
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--backtitle "${name} v${ver}" --stdout \
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--ok-label " Select " --cancel-label " Logout " \
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--menu "Select Window Manager" 0 0 0 ${menu}
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)
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if [[ $? != 0 ]]; then
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clear
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exit 0
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fi
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fi
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# Set wm_bin
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clear
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if [[ ${wm} -eq ${console} ]]; then
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exit 2 #2 signals to the profile file to not exit.
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elif [[ ${wm} -eq ${halt} ]]; then
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shutdownmenu
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else
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let wm=wm-countfrom
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wm_bin="${wmbinlist[${wm}]}"
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xstart
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fi
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}
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shutdownmenu() {
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count=$countfrom
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haltmenu=$(
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for opt in Shutdown Reboot Suspend Hibernate; do
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# Check if suspend/hibernate is enabled
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if ([[ $opt != Suspend ]] && [[ $opt != Hibernate ]]) ||
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([[ $opt == Suspend ]] && $(yesno allowsuspend)) ||
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([[ $opt == Hibernate ]] && $(yesno allowhibernate)); then
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echo -ne "$count $opt "
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let count=count+1
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fi
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done
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)
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# Display shutdown dialog
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haltopt=$(
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DIALOGRC="$dialogrc" dialog --colors \
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--backtitle "${name} v${ver}" --stdout \
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--ok-label " Select " --cancel-label " Cancel " \
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--menu "Shutdown" 0 0 0 ${haltmenu}
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)
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if [[ $? == 0 ]]; then
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clear
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if [[ ${haltopt} -eq $countfrom ]]; then
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${shutdowncommand}
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elif [[ ${haltopt} -eq $((countfrom+1)) ]]; then
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${rebootcommand}
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elif [[ ${haltopt} -eq $((countfrom+2)) ]] && $(yesno allowsuspend); then
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${suspendcommand}
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else
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${hibernatecommand}
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fi
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else
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mainmenu
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fi
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}
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xstart() {
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# Start X
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if $(yesno usexinit); then
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if [[ -f $userclientrc ]]; then
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wm_bin="$userclientrc $wm_bin"
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elif [[ -f $sysclientrc ]]; then
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wm_bin="$sysclientrc $wm_bin"
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fi
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else
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wm_bin="/etc/X11/cdm/xinitrc $wm_bin"
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fi
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serverargs=":${display} ${serverargs} vt$((xtty+display))"
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if $(yesno consolekit); then #do first to avoid race conditions
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ebegin "Waiting for ConsoleKit to register X session (timeout ${cktimeout}s)..."
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sleep $cktimeout &
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clockpid=$!
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#have to store pid of dbus-monitor this way since dbus-monitor will run until killed.
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fifo=$(mktemp --dry-run)
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mkfifo --mode=700 $fifo
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(dbus-monitor --system type=signal,interface=org.freedesktop.ConsoleKit.Seat,member=SessionAdded & echo $! > $fifo ) | \
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sed -un 's|[[:space:]]*object path \"\(/[a-zA-Z0-9/]*\)\"|\1|p' | while read object; do
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if dbus-send --system --print-reply --dest=org.freedesktop.ConsoleKit "$object" org.freedesktop.ConsoleKit.Session.GetX11Display | \
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grep -qF "$display"; then break
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fi
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done &
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read dbuspid < $fifo
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rm -f $fifo
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fi
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if $(yesno loginshell); then
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nohup bash --login -c "startx $wm_bin -- ${serverargs}" &> /dev/null &
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else
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nohup startx $wm_bin -- ${serverargs} &> /dev/null &
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fi
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if [[ -n $clockpid ]]; then
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#if wait returns with a value >128, it was interrupted by the trap, so registration was sucessful.
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if wait $clockpid; then
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eend "Timed out, giving up.\nCheck to see if you are wrapping your session with ck-launch-session or increase the timeout."
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kill $dbuspid
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exit 1
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else
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eend 0
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kill $dbuspid $clockpid
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exit 0
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fi
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fi
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exit 0
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}
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mainmenu
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