#!/bin/bash## Init file for OpenSSH server daemon## chkconfig: 2345 55 25# description: OpenSSH server daemon## processname: sshd# config: /etc/ssh/ssh_host_key# config: /etc/ssh/ssh_host_key.pub# config: /etc/ssh/ssh_random_seed# config: /etc/ssh/sshd_config# pidfile: /var/run/sshd.pid# source function library. /etc/rc.d/init.d/functions# pull in sysconfig settings[ -f /etc/sysconfig/sshd ] && . /etc/sysconfig/sshdRETVAL=0prog="sshd"# Some functions to make the below more readableKEYGEN=/usr/bin/ssh-keygenSSHD=/usr/sbin/sshdRSA1_KEY=/etc/ssh/ssh_host_keyRSA_KEY=/etc/ssh/ssh_host_rsa_keyDSA_KEY=/etc/ssh/ssh_host_dsa_keyPID_FILE=/var/run/sshd.pidmy_success() {  local msg  if [ $# -gt 1 ]; then    msg="$2"  else    msg="done"  fi  case "`type -type success`" in    function)      success "$1"    ;;    *)      echo -n "${msg}"    ;;  esac}my_failure() {  local msg  if [ $# -gt 1 ]; then    msg="$2"  else    msg="FAILED"  fi  case "`type -type failure`" in    function)      failure "$1"    ;;    *)      echo -n "${msg}"    ;;  esac}do_rsa1_keygen() {	if [ ! -s $RSA1_KEY ]; then		echo -n "Generating SSH1 RSA host key: "		if $KEYGEN -q -t rsa1 -f $RSA1_KEY -C '' -N '' >&/dev/null; then			chmod 600 $RSA1_KEY			chmod 644 $RSA1_KEY.pub			my_success "RSA1 key generation"			echo		else			my_failure "RSA1 key generation"			echo			exit 1		fi	fi}do_rsa_keygen() {	if [ ! -s $RSA_KEY ]; then		echo -n "Generating SSH2 RSA host key: "		if $KEYGEN -q -t rsa -f $RSA_KEY -C '' -N '' >&/dev/null; then			chmod 600 $RSA_KEY			chmod 644 $RSA_KEY.pub			my_success "RSA key generation"			echo		else			my_failure "RSA key generation"			echo			exit 1		fi	fi}do_dsa_keygen() {	if [ ! -s $DSA_KEY ]; then		echo -n "Generating SSH2 DSA host key: "		if $KEYGEN -q -t dsa -f $DSA_KEY -C '' -N '' >&/dev/null; then			chmod 600 $DSA_KEY			chmod 644 $DSA_KEY.pub			my_success "DSA key generation"			echo		else			my_failure "DSA key generation"			echo			exit 1		fi	fi}do_restart_sanity_check() {	$SSHD -t	RETVAL=$?	if [ ! "$RETVAL" = 0 ]; then		my_failure "Configuration file or keys"		echo	fi}case "$1" in	start)		# Create keys if necessary		do_rsa1_keygen;		do_rsa_keygen;		do_dsa_keygen;				echo -n "Starting sshd: "		if [ ! -f $PID_FILE ] ; then			sshd $OPTIONS			RETVAL=$?			if [ "$RETVAL" = "0" ] ; then				my_success "sshd startup" "sshd"				touch /var/lock/subsys/sshd			else				my_failure "sshd startup" ""			fi		fi		echo		;;	stop)		echo -n "Shutting down sshd: "		if [ -f $PID_FILE ] ; then			killproc sshd			RETVAL=$?			[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/sshd		fi		echo		;;	restart)		do_restart_sanity_check		$0 stop		$0 start		RETVAL=$?		;;	condrestart)		if [ -f /var/lock/subsys/sshd ] ; then			do_restart_sanity_check			$0 stop			$0 start			RETVAL=$?		fi		;;	status)		status sshd		RETVAL=$?		;;	*)		echo "Usage: sshd {start|stop|restart|status|condrestart}"		exit 1		;;esacexit $RETVAL