#!/bin/sh

# Script to control ssh server start/stop
# Written by Tom G. Christensen <swpkg@jupiterrise.com>

SSHD=/usr/tgcware/sbin/sshd
KEYGEN=/usr/tgcware/bin/ssh-keygen
RSA1_KEY=/usr/tgcware/etc/ssh/ssh_host_key
RSA_KEY=/usr/tgcware/etc/ssh/ssh_host_rsa_key
DSA_KEY=/usr/tgcware/etc/ssh/ssh_host_dsa_key
ECDSA_KEY=/usr/tgcware/etc/ssh/ssh_host_ecdsa_key
ECHO=/usr/bin/echo

pidfile=/var/run/sshd.pid

check_pid_dir()
{
        if [ ! -d /var/run ]; then
                mkdir -p /var/run
                chown root.sys /var/run
                chmod 755 /var/run
        fi
}

do_hostkeygen()
{
        if [ ! -s $RSA1_KEY ]; then
                $ECHO "Generating $RSA1_KEY:\c"
                $KEYGEN -q -t rsa1 -f $RSA1_KEY -N '' > /dev/null 2>&1
		$ECHO "."
        fi
        if [ ! -s $RSA_KEY ]; then
                $ECHO "Generating $RSA_KEY:\c"
                $KEYGEN -q -t rsa -f $RSA_KEY -N '' > /dev/null 2>&1
		$ECHO "."
        fi
        if [ ! -s $DSA_KEY ]; then
                $ECHO "Generating $DSA_KEY:\c"
                $KEYGEN -q -t dsa -f $DSA_KEY -N '' > /dev/null 2>&1
                $ECHO "."
        fi
        if [ ! -s $ECDSA_KEY ]; then
                $ECHO "Generating $ECDSA_KEY:\c"
                $KEYGEN -q -t ecdsa -f $ECDSA_KEY -N '' > /dev/null 2>&1
                $ECHO "."
        fi
}

kill_sshd()
{
        if [ -r $pidfile ]; then
            sshd_pid=`cat $pidfile`
            ps -p $sshd_pid | grep sshd > /dev/null
            if [ $? -eq 0 ]; then
                /usr/bin/kill -15 $sshd_pid
            fi
        fi
}

mode=$1
set `/usr/xpg4/bin/id -u`
if [ $1 = "0" ]; then

case $mode in
    start)
	kill_sshd
        if test -x $SSHD; then
            do_hostkeygen
            $ECHO "Starting sshd:\c"
            check_pid_dir
	    $SSHD
            $ECHO "."
        fi
        ;;
    stop) 
	kill_sshd
	exit 0
	;;
    restart)
	$0 start
	;;
    *)
	echo "Usage: $0 {start|stop|restart}"
	;;
esac 

else
  echo "$0: this script must be run as root... fatal error"

fi