#!/bin/sh
# Copyright @BABOLO (C)2002,2003
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $Id: start,v 1.6 2003/02/16 20:21:28 babolo Exp $

ps=/bin/ps
rm="/bin/rm -f"
cat=/bin/cat
kill=/bin/kill
sleep=/bin/sleep
sysctl=/sbin/sysctl
awk=/usr/bin/awk
sed=/usr/bin/sed
true=/usr/bin/true
su="/usr/bin/su -mf"
grep="/usr/bin/grep -qE"
jail=/usr/sbin/jail
path="${1}"
hname="${2}"
ipadr="${3}"
nice="${4}"
uid="${5}"
gid="${6}"
pxhost="${7}"
pxport="${8}"
port="${9}"
lclass=tproxy
pidfi="${JAILUPDIR}/${path}/var/run/${lclass}.pid"
if [ -r "${JAILUPDIR}/etc/login.conf" ]; then
    fl='-ln'
else
    fl='-n'
fi

dogfi=`${awk}\
   "BEGIN{
        print \"/var/run/\" gensub(\"/\", \".\", \"g\", \"${path}\") \".${lclass}.dog\"
    }"`
#     .
#   
if  [ -e ${dogfi} ] && ${ps} -axww | ${grep} "^ *`${cat} ${dogfi}` .* /bin/sh .*/start/${lclass} ${path} ${hname} ${ipadr}"
then
    ${kill} `${cat} ${dogfi}` > /dev/null && ${rm} ${dogfi}
fi
#   ,  jail.
echo $$ > ${dogfi}

while ${true}; do
    if  [ -e ${pidfi} ] && ${ps} -axww | ${grep} "^ *`${cat} ${pidfi}` .*/usr/libexec/${lclass} "
    then
        ${su} ${uid} -c "${kill} `${cat} ${pidfi}`" > /dev/null && ${rm} ${pidfi}
    fi
    ${jail} -g ${gid} ${fl} ${nice} "${JAILUPDIR}/${path}" "${hname}" "${ipadr}" /usr/libexec/${lclass} -s${port} -r${uid} -l/var/run/${lclass}.pid ${pxhost} ${pxport}
    ${sleep} 60
    if [ `${sysctl} -n vm.loadavg | ${sed} -e 's/{ //' -e 's/\..*//'` -ge 10 ]; then
        ${sleep} 120
    fi
    while [ -e ${pidfi} ] && ${su} ${uid} -c "${kill} -0 `${cat} ${pidfi}`"; do
         ${sleep} 6
    done
done
