JezK
Edit File: rc
#! /bin/sh # # rc # # Starts/stops services on runlevel changes. # # Authors: # Miquel van Smoorenburg <miquels@cistron.nl> # Bruce Perens <Bruce@Pixar.com> PATH=/sbin:/usr/sbin:/bin:/usr/bin export PATH # Un-comment the following for interactive debugging. Do not un-comment # this for debugging a real boot process as no scripts will be executed. # debug=echo # Make sure the name survive changing the argument list scriptname="$0" umask 022 on_exit() { echo "error: '$scriptname' exited outside the expected code flow." } trap on_exit EXIT # Enable emergency handler # Ignore CTRL-C only in this shell, so we can interrupt subprocesses. trap ":" INT QUIT TSTP # Set onlcr to avoid staircase effect. stty onlcr 0>&1 # Now find out what the current and what the previous runlevel are. # shellcheck disable=SC2153 # this variable is set by /sbin/init runlevel=$RUNLEVEL # Get first argument. Set new runlevel to this argument. [ "$1" != "" ] && runlevel=$1 if [ "$runlevel" = "" ] then echo "Usage: $scriptname <runlevel>" >&2 exit 1 fi previous=$PREVLEVEL [ "$previous" = "" ] && previous=N export runlevel previous if [ -f /etc/default/rcS ] ; then . /etc/default/rcS fi export VERBOSE . /lib/lsb/init-functions # # Check if we are able to use make like booting. It require the # insserv package to be enabled. Boot concurrency also requires # startpar to be installed. # CONCURRENCY=makefile test -s /etc/init.d/.depend.boot || CONCURRENCY="none" test -s /etc/init.d/.depend.start || CONCURRENCY="none" test -s /etc/init.d/.depend.stop || CONCURRENCY="none" if test -e /etc/init.d/.legacy-bootordering; then CONCURRENCY="none" fi if grep -wqs concurrency=none /proc/cmdline; then CONCURRENCY="none" fi if ! test -e /proc/stat; then # startpar requires /proc/stat if [ "$(uname)" = "GNU/kFreeBSD" ] ; then mount -t linprocfs linprocfs /proc elif [ "$(uname)" = "GNU" ] ; then mount -t proc none /proc -ocompatible else mount -t proc none /proc fi fi # # Start script or program. # case "$CONCURRENCY" in makefile|startpar|shell) # startpar and shell are obsolete CONCURRENCY=makefile log_action_msg "Using makefile-style concurrent boot in runlevel $runlevel" startup() { eval "$(startpar -p 4 -t 20 -T 3 -M $1 -P $previous -R $runlevel)" if [ -n "$failed_service" ] then log_failure_msg "startpar: service(s) returned failure: $failed_service" fi if [ -n "$skipped_service_not_installed" ] then log_warning_msg "startpar: service(s) skipped, program is not installed: $skipped_service_not_installed" fi if [ -n "$skipped_service_not_configured" ] then log_warning_msg "startpar: service(s) skipped, program is not configured: $skipped_service_not_configured" fi unset failed_service skipped_service_not_installed skipped_service_not_configured } ;; none|*) startup() { action=$1 shift for script ; do "$script" "$action" done } ;; esac # Is there an rc directory for this new runlevel? if [ -d "/etc/rc$runlevel.d" ] then case "$runlevel" in 0|6) ACTION=stop ;; S) ACTION=start ;; *) ACTION=start ;; esac # First, run the KILL scripts. if [ makefile = "$CONCURRENCY" ] then if [ "$ACTION" = "start" ] && [ "$previous" != N ] then startup stop fi elif [ "$previous" != N ] then CURLEVEL="" for s in "/etc/rc$runlevel.d/K"* do # Extract order value from symlink level=${s#/etc/rc$runlevel.d/K} level=${level%%[a-zA-Z]*} if [ "$level" = "$CURLEVEL" ] then continue fi CURLEVEL=$level SCRIPTS="" for i in "/etc/rc$runlevel.d/K$level"* do # Check if the script is there. [ ! -f "$i" ] && continue # Stop the service. SCRIPTS="$SCRIPTS $i" done startup stop $SCRIPTS done fi if [ makefile = "$CONCURRENCY" ] then if [ S = "$runlevel" ] then startup boot else startup $ACTION fi else # Now run the START scripts for this runlevel. CURLEVEL="" for s in "/etc/rc$runlevel.d/S"* do # Extract order value from symlink level=${s#/etc/rc$runlevel.d/S} level=${level%%[a-zA-Z]*} if [ "$level" = "$CURLEVEL" ] then continue fi CURLEVEL=$level SCRIPTS="" for i in "/etc/rc$runlevel.d/S$level"* do [ ! -f "$i" ] && continue SCRIPTS="$SCRIPTS $i" done startup $ACTION $SCRIPTS done fi fi trap - EXIT # Disable emergency handler exit 0