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185 lines
4.5 KiB
185 lines
4.5 KiB
#!/bin/sh
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#
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# rc This file is responsible for starting/stopping
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# services when the runlevel changes.
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#
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# Optimization feature:
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# A startup script is _not_ run when the service was
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# running in the previous runlevel and it wasn't stopped
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# in the runlevel transition (most Debian services don't
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# have K?? links in rc{1,2,3,4,5} )
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#
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# Author: Miquel van Smoorenburg <miquels@cistron.nl>
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# Bruce Perens <Bruce@Pixar.com>
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#
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# Version: @(#)rc 2.78 07-Nov-1999 miquels@cistron.nl
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#
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. /etc/default/rcS
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export VERBOSE
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. /etc/init.d/functions
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. /etc/init.d/globals
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startup_progress() {
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step=$(($step + $step_change))
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if [ "$num_steps" != "0" ]; then
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progress=$((($step * $progress_size / $num_steps) + $first_step))
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else
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progress=$progress_size
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fi
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#echo "PROGRESS is $progress $runlevel $first_step + ($step of $num_steps) $step_change $progress_size"
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#if type psplash-write >/dev/null 2>&1; then
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# TMPDIR=/mnt/.psplash psplash-write "PROGRESS $progress" || true
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#fi
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if [ $progress -gt 0 -a -e /proc/progress ]; then
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echo $(($progress / 2)) > /proc/progress
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elif [ $progress -gt 0 -a -e /proc/vfd ]; then
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echo Loading $(($progress / 2)) % > /proc/vfd
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elif [ $progress -gt 0 -a -e /usr/bin/displayvfd ]; then
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displayvfd -s 18 -t "Booting $progress"
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elif [ $progress -gt 0 -a -e /dev/mcu ]; then
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echo $(($progress / 2)) > /dev/mcu
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fi
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}
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#
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# Start script or program.
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#
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startup() {
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# Handle verbosity
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[ "$VERBOSE" = very ] && echo "INIT: Running $@..."
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LOGINFO "running $@"
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case "$1" in
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*.sh)
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# Source shell script for speed.
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(
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trap - INT QUIT TSTP
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scriptname=$1
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shift
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. $scriptname
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)
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;;
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*)
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"$@"
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;;
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esac
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startup_progress
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}
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# Ignore CTRL-C only in this shell, so we can interrupt subprocesses.
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trap ":" INT QUIT TSTP
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# Set onlcr to avoid staircase effect.
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stty onlcr 0>&1
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# Limit stack size for startup scripts
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[ "$STACK_SIZE" == "" ] || ulimit -S -s $STACK_SIZE
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# Now find out what the current and what the previous runlevel are.
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runlevel=$RUNLEVEL
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# Get first argument. Set new runlevel to this argument.
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[ "$1" != "" ] && runlevel=$1
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if [ "$runlevel" = "" ]
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then
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echo "Usage: $0 <runlevel>" >&2
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exit 1
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fi
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previous=$PREVLEVEL
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[ "$previous" = "" ] && previous=N
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export runlevel previous
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# Is there an rc directory for this new runlevel?
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if [ -d /etc/rc$runlevel.d ]
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then
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# Find out where in the progress bar the initramfs got to.
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PROGRESS_STATE=0
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#if [ -f /dev/.initramfs/progress_state ]; then
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# . /dev/.initramfs/progress_state
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#fi
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# Split the remaining portion of the progress bar into thirds
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progress_size=$(((100 - $PROGRESS_STATE) / 3))
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case "$runlevel" in
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0|6)
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# Count down from -100 to 0 and use the entire bar
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first_step=-100
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progress_size=100
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step_change=1
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;;
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S)
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# Begin where the initramfs left off and use 2/3
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# of the remaining space
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first_step=$PROGRESS_STATE
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progress_size=$(($progress_size * 2))
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step_change=1
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;;
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*)
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# Begin where rcS left off and use the final 1/3 of
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# the space (by leaving progress_size unchanged)
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first_step=$(($progress_size * 2 + $PROGRESS_STATE))
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step_change=1
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;;
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esac
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num_steps=0
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for s in /etc/rc$runlevel.d/[SK]*; do
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case "${s##/etc/rc$runlevel.d/S??}" in
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gdm|xdm|kdm|reboot|halt)
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break
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;;
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esac
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num_steps=$(($num_steps + 1))
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done
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step=0
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# First, run the KILL scripts.
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if [ $previous != N ]
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then
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for i in /etc/rc$runlevel.d/K[0-9][0-9]*
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do
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# Check if the script is there.
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[ ! -f $i ] && continue
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# Stop the service.
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startup $i stop
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done
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fi
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# Now run the START scripts for this runlevel.
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for i in /etc/rc$runlevel.d/S*
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do
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[ ! -f $i ] && continue
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if [ $previous != N ] && [ $previous != S ]
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then
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#
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# Find start script in previous runlevel and
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# stop script in this runlevel.
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#
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suffix=${i#/etc/rc$runlevel.d/S[0-9][0-9]}
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stop=/etc/rc$runlevel.d/K[0-9][0-9]$suffix
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previous_start=/etc/rc$previous.d/S[0-9][0-9]$suffix
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#
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# If there is a start script in the previous level
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# and _no_ stop script in this level, we don't
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# have to re-start the service.
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#
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[ -f $previous_start ] && [ ! -f $stop ] && continue
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fi
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case "$runlevel" in
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0|6)
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# Runlevels 0 and 6 are always stop runlevels
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startup $i stop
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;;
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*)
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startup $i start
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;;
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esac
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done
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fi
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