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#!/bin/sh # /etc/init.d/x11-common: set up the X server and ICE socket directories ### BEGIN INIT INFO # Provides: x11-common # Required-Start: $remote_fs # Required-Stop: $remote_fs # Default-Start: S # Default-Stop: # Short-Description: set up the X server and ICE socket directories ### END INIT INFO set -e PATH=/usr/bin:/usr/sbin:/bin:/sbin SOCKET_DIR=.X11-unix ICE_DIR=.ICE-unix . /lib/lsb/init-functions if [ -f /etc/default/rcS ]; then . /etc/default/rcS fi do_restorecon () { # Restore file security context (SELinux). if command -v restorecon >/dev/null 2>&1; then restorecon "$1" fi } # create a directory in /tmp. # assumes /tmp has a sticky bit set (or is only writeable by root) set_up_dir () { DIR="/tmp/$1" if [ "$VERBOSE" != no ]; then log_progress_msg "$DIR" fi # if $DIR exists and isn't a directory, move it aside if [ -e $DIR ] && ! [ -d $DIR ] || [ -h $DIR ]; then mv "$DIR" "$(mktemp -d $DIR.XXXXXX)" fi error=0 while :; do if [ $error -ne 0 ] ; then # an error means the file-system is readonly or an attacker # is doing evil things, distinguish by creating a temporary file, # but give up after a while. if [ $error -gt 5 ]; then log_failure_msg "failed to set up $DIR" return 1 fi fn="$(mktemp /tmp/testwriteable.XXXXXXXXXX)" || return 1 rm "$fn" fi mkdir -p -m 01777 "$DIR" || { rm "$DIR" || error=$((error + 1)) ; continue ; } case "$(LC_ALL=C stat -c '%u %g %a %F' "$DIR")" in "0 0 1777 directory") # everything as it is supposed to be break ;; "0 0 "*" directory") # as it is owned by root, cannot be replaced with a symlink: chmod 01777 "$DIR" break ;; *" directory") # if the chown succeeds, the next step can change it savely chown -h root:root "$DIR" || error=$((error + 1)) continue ;; *) log_failure_msg "failed to set up $DIR" return 1 ;; esac done do_restorecon "$DIR" return 0 } do_status () { if [ -d "/tmp/$ICE_DIR" ] && [ -d "/tmp/$SOCKET_DIR" ]; then return 0 else return 4 fi } case "$1" in start) if [ "$VERBOSE" != no ]; then log_begin_msg "Setting up X socket directories..." fi set_up_dir "$SOCKET_DIR" set_up_dir "$ICE_DIR" if [ "$VERBOSE" != no ]; then log_end_msg 0 fi ;; restart|reload|force-reload) /etc/init.d/x11-common start ;; stop) : ;; status) do_status ;; *) log_success_msg "Usage: /etc/init.d/x11-common {start|stop|status|restart|reload|force-reload}" exit 1 ;; esac exit 0 # vim:set ai et sts=2 sw=2 tw=0: