source: bootscripts-standard/boot-scripts/clfs/init.d/rc

#!/bin/bash
########################################################################
# Begin $rc_base/init.d/rc
#
# Description : Main Run Level Control Script
#
# Authors     : Gerard Beekmans  - gerard@linuxfromscratch.org
#
# Version     : 00.00
#
# Notes       :
#
########################################################################

. /tools/etc/sysconfig/rc
. ${rc_functions}

# This sets a few default terminal options.
stty sane

# These 3 signals will not cause our script to exit
trap "" INT QUIT TSTP

[ "${1}" != "" ] && runlevel=${1}

if [ "${runlevel}" = "" ]; then
        echo "Usage: ${0} <runlevel>" >&2
        exit 1
fi

previous=${PREVLEVEL}
[ "${previous}" = "" ] && previous=N

if [ ! -d ${rc_base}/rc${runlevel}.d ]; then
        boot_mesg "${rc_base}/rc${runlevel}.d does not exist." ${WARNING}
        boot_mesg_flush
        exit 1
fi

# Attempt to stop all services started by previous runlevel,
# and killed in this runlevel
if [ "${previous}" != "N" ]; then
        for i in $(ls -v ${rc_base}/rc${runlevel}.d/K* 2> /dev/null)
        do
                check_script_status

                suffix=${i#$rc_base/rc$runlevel.d/K[0-9][0-9]}
                prev_start=$rc_base/rc$previous.d/S[0-9][0-9]$suffix
                sysinit_start=$rc_base/rcsysinit.d/S[0-9][0-9]$suffix

                if [ "${runlevel}" != "0" ] && [ "${runlevel}" != "6" ]; then
                        if [ ! -f ${prev_start} ] && [ ! -f ${sysinit_start} ]; then
                                boot_log "${i} cant be started in runlevel ${runlevel}, because it was not started in runlevel ${previous}"
                                boot_mesg -n "WARNING:\n\n${i} can't be" ${WARNING}
                                boot_mesg -n " executed because it was not"
                                boot_mesg -n " not started in the previous"
                                boot_mesg -n " runlevel (${previous})."
                                boot_mesg "" ${NORMAL}
                                boot_mesg_flush
                                continue
                        fi
                fi
                ${i} stop
                error_value=${?}

                if [ "${error_value}" != "0" ]; then
                        print_error_msg
                fi
        done
fi

#Start all functions in this runlevel
for i in $( ls -v ${rc_base}/rc${runlevel}.d/S* 2> /dev/null)
do
        if [ "${previous}" != "N" ]; then
                suffix=${i#$rc_base/rc$runlevel.d/S[0-9][0-9]}
                stop=$rc_base/rc$runlevel.d/K[0-9][0-9]$suffix
                prev_start=$rc_base/rc$previous.d/S[0-9][0-9]$suffix

                [ -f ${prev_start} ] && [ ! -f ${stop} ] && continue
        fi

        check_script_status

        case ${runlevel} in
                0|6)
                        ${i} stop
                        ;;
                *)
                        ${i} start
                        ;;
        esac
        error_value=${?}

        if [ "${error_value}" != "0" ]; then
                print_error_msg
        fi
done

# End $rc_base/init.d/rc