#!/bin/sh
#
# Created by William Astle, December 2002
#
# This script is hereby placed in the public domain with no warrantee at all.
#
# read rctab and start/stop various services as defined by it
# we do the stopping before we do the starting
# note that for simplicity we read the rctab file twice
#
# note that services are stopped in the reverse order to which
# they are started. That is from the bottom of rctab to the top.
#
# /var/run/rcstate is used to keep track of whether a service is started
# or not

RCTAB=/etc/rc.d/rctab
STATEDIR=/var/run/rcstate

runlevel="$1"

# read the rctab file
curindex=0
#grep -v "^\#" "$RCTAB" | grep -v "^$" |
3<"$RCTAB"
while read <&3
do
    if echo "$REPLY" | egrep  '^$' > /dev/null; then
        continue
    fi
    if echo "$REPLY" | grep "^\#" > /dev/null; then
        continue
    fi
    rcentries[$curindex]="$REPLY"
    curindex=$[$curindex+1]
done

# run the stop commands (done in reverse order)
for (( ctr=$[curindex-1]; 0 <= $ctr; ctr=$[$ctr-1] )); do
    IDENTIFIER=`echo "${rcentries[$ctr]}" | cut -d: -f1`
    RUNLEVELS=`echo "${rcentries[$ctr]}" | cut -d: -f2`
    STARTCMD=`echo "${rcentries[$ctr]}" | cut -d: -f3`
    STOPCMD=`echo "${rcentries[$ctr]}" | cut -d: -f4`
    if ! echo "$RUNLEVELS" | grep "$runlevel" > /dev/null; then
        if [ -f "$STATEDIR/$IDENTIFIER" ]; then
            eval  "$STOPCMD"
            rm -f "$STATEDIR/$IDENTIFIER"
        fi
    fi
done

# run the start commands
for (( ctr=0; $ctr < $curindex; ctr=$[$ctr+1] )); do
    IDENTIFIER=`echo "${rcentries[$ctr]}" | cut -d: -f1`
    RUNLEVELS=`echo "${rcentries[$ctr]}" | cut -d: -f2`
    STARTCMD=`echo "${rcentries[$ctr]}" | cut -d: -f3`
    STOPCMD=`echo "${rcentries[$ctr]}" | cut -d: -f4`
    if echo "$RUNLEVELS" | grep "$runlevel" > /dev/null; then
        if [ ! -f "$STATEDIR/$IDENTIFIER" ]; then
            eval "$STARTCMD"
            touch "$STATEDIR/$IDENTIFIER"
        fi
    fi
done