/etc/init.d/rc is in sysv-rc 2.88dsf-59.9.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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#
# rc
#
# Starts/stops services on runlevel changes.
#
# Optimization: A start script is not run when the service was already
# configured to run in the previous runlevel. A stop script is not run
# when the the service was already configured not to run in the previous
# runlevel.
#
# 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.
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
if [ -f /lib/lsb/init-functions ] ; then
. /lib/lsb/init-functions
else
log_action_msg() { echo $@; }
log_failure_msg() { echo $@; }
log_warning_msg() { echo $@; }
fi
#
# Check if we are able to use make like booting. It require the
# insserv package to be enabled. Boot concurrency also requires
# startpar to be installed.
#
CONCURRENCY=makefile
test -s /etc/init.d/.depend.boot || CONCURRENCY="none"
test -s /etc/init.d/.depend.start || CONCURRENCY="none"
test -s /etc/init.d/.depend.stop || CONCURRENCY="none"
if test -e /etc/init.d/.legacy-bootordering ; then
CONCURRENCY="none"
fi
if ! test -e /proc/stat; then
# startpar requires /proc/stat
if [ "$(uname)" = "GNU/kFreeBSD" ] ; then
mount -t linprocfs linprocfs /proc
elif [ "$(uname)" = "GNU" ] ; then
mount -t proc none /proc
fi
fi
if [ -x /lib/startpar/startpar ] ; then
STARTPAR=/lib/startpar/startpar
else
STARTPAR=startpar
fi
$STARTPAR -v > /dev/null 2>&1 || CONCURRENCY="none"
#
# Start script or program.
#
case "$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=$1
shift
scripts="$@"
for script in $scripts ; do
$debug "$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 [ "$previous" != N ]
then
# Run all scripts with the same level in parallel
CURLEVEL=""
for s in /etc/rc$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 $i ] && continue
#
# Find stop script in previous runlevel but
# no start script there.
#
suffix=${i#/etc/rc$runlevel.d/K[0-9][0-9]}
previous_stop=/etc/rc$previous.d/K[0-9][0-9]$suffix
previous_start=/etc/rc$previous.d/S[0-9][0-9]$suffix
#
# If there is a stop script in the previous level
# and _no_ start script there, we don't
# have to re-stop the service.
#
[ -f $previous_stop ] && [ ! -f $previous_start ] && continue
# Stop the service.
SCRIPTS="$SCRIPTS $i"
done
startup stop $SCRIPTS
done
fi
if [ makefile = "$CONCURRENCY" ]
then
if [ S = "$runlevel" ]
then
startup boot
else
startup $ACTION
fi
else
# Now run the START scripts for this runlevel.
# Run all scripts with the same level in parallel
CURLEVEL=""
for s in /etc/rc$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 $i ] && continue
suffix=${i#/etc/rc$runlevel.d/S[0-9][0-9]}
if [ "$previous" != N ]
then
#
# Find start script in previous runlevel and
# stop script in this runlevel.
#
stop=/etc/rc$runlevel.d/K[0-9][0-9]$suffix
previous_start=/etc/rc$previous.d/S[0-9][0-9]$suffix
#
# If there is a start script in the previous level
# and _no_ stop script in this level, we don't
# have to re-start the service.
#
if [ start = "$ACTION" ] ; then
[ -f $previous_start ] && [ ! -f $stop ] && continue
else
# Workaround for the special
# handling of runlevels 0 and 6.
previous_stop=/etc/rc$previous.d/K[0-9][0-9]$suffix
#
# If there is a stop script in the previous level
# and _no_ start script there, we don't
# have to re-stop the service.
#
[ -f $previous_stop ] && [ ! -f $previous_start ] && continue
fi
fi
SCRIPTS="$SCRIPTS $i"
done
startup $ACTION $SCRIPTS
done
fi
fi
trap - EXIT # Disable emergency handler
exit 0
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