#!/bin/sh

# Recovery script for INET/lwip. It restarts daemons dependent on it in order
# to recover TCP state.

kill_by_name()
{
	label="$1"
	pid=`ps ax | grep "$label" | grep -v grep | sed 's,[ 	]*\([0-9]*\).*,\1,'`
	if [ X"$pid" = X ]
	then
		return 1	# No such process
	fi
	echo "killing pid $pid for $label"
	kill -9 $pid
}

daemonize()
{
    # Function to start a daemon, if it exists.
    local IFS=':'
    local name="$1"
    test "$1" = tcpd && name="$2"

    for dir in $PATH
    do
	if [ -f "$dir/$1" ]
	then

            # check if this service is disabled at the boot monitor.
            if disabled $name; then return; fi

	    echo -n " $name"
	    "$@" &
	    return
	fi
    done
}

disabled()
{
    ifs="$IFS"; IFS=,
    for skip in `sysenv disable`
    do 
        if [ "$skip" = "$1" ]
	then 	 
                IFS="$ifs"; unset ifs
		return 0
	fi
    done
    IFS="$ifs"; unset ifs
    return 1
}

exec > /dev/console
echo "Arguments: $@"

restarts=$(grep restarts /proc/service/$1 |cut -d: -f2)
restarts=$(( $restarts + 1 ))
service down "$1"
kill_by_name dhcpd
kill_by_name nonamed
kill_by_name syslogd

# Wait a moment to let daemons clean themselves up
sleep 3
if [ X`/bin/sysenv lwip` = Xyes ]
then
	service up /service/lwip -script /etc/rs.inet -dev /dev/ip -restarts $restarts
	dhcpd --lwip &
else
	service up /service/inet -script /etc/rs.inet -dev /dev/ip -restarts $restarts
	daemonize dhcpd
fi
daemonize nonamed -L
daemonize syslogd

# Restart SSH daemon if installed and running
if [ -f /usr/pkg/etc/rc.d/sshd ]
then
	/usr/pkg/etc/rc.d/sshd status | grep -v not > /dev/null
	if [ $? -eq 0 ]
	then
		/usr/pkg/etc/rc.d/sshd restart
	fi
fi