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Current Path : /proc/self/root/proc/2/cwd/etc/rc.d/rc6.d/
Current File : //proc/self/root/proc/2/cwd/etc/rc.d/rc6.d/K87named
#!/bin/bash
#
# named           This shell script takes care of starting and stopping
#                 named (BIND DNS server).
#
# chkconfig: - 13 87
# description: named (BIND) is a Domain Name Server (DNS) \
# that is used to resolve host names to IP addresses.
# probe: true

### BEGIN INIT INFO
# Provides: $named
# Required-Start: $local_fs $network $syslog
# Required-Stop: $local_fs $network $syslog
# Default-Start:
# Default-Stop: 0 1 2 3 4 5 6
# Short-Description: start|stop|status|restart|try-restart|reload|force-reload DNS server
# Description: control ISC BIND implementation of DNS server
### END INIT INFO

# Source function library.
. /etc/rc.d/init.d/functions

[ -r /etc/sysconfig/named ] && . /etc/sysconfig/named

RETVAL=0
export KRB5_KTNAME=${KEYTAB_FILE:-/etc/named.keytab}

named='named'
if [ -x /usr/sbin/named-sdb ]; then
	named='named-sdb'
fi

# Don't kill named during clean-up
NAMED_SHUTDOWN_TIMEOUT=${NAMED_SHUTDOWN_TIMEOUT:-25}

if [ -n "$ROOTDIR" ]; then
   ROOTDIR=`echo $ROOTDIR | sed 's#//*#/#g;s#/$##'`;
   rdl=`/usr/bin/readlink $ROOTDIR`;
   if [ -n "$rdl" ]; then
      ROOTDIR="$rdl";
   fi;
fi

PIDFILE="/var/run/named/named.pid"

ROOTDIR_MOUNT='/etc/named /etc/pki/dnssec-keys /var/named /etc/named.conf
/etc/named.dnssec.keys /etc/named.rfc1912.zones /etc/rndc.conf /etc/rndc.key
/usr/lib64/bind /usr/lib/bind /etc/named.iscdlv.key /etc/named.root.key
/etc/services /etc/protocols'

for LIB in /lib /lib64
do
  if [ -d "$ROOTDIR$LIB" ]; then
    for NSSLIB in "$LIB"/libnss_files.so.[1-9]
    do
      ROOTDIR_MOUNT+=" $NSSLIB"
    done
  fi
done

mount_chroot_conf()
{
  if [ -n "$ROOTDIR" ]; then
    for all in $ROOTDIR_MOUNT; do
      # Skip nonexistant files
      [ -e "$all" ] || continue

      # If mount source is a file
      if ! [ -d "$all" ]; then
        # mount it only if it is not present in chroot or it is empty
        if ! [ -e "$ROOTDIR$all" ] || [ "`stat -c'%s' "$ROOTDIR$all"`" -eq 0 ]; then
          touch "$ROOTDIR$all"
          mount --bind "$all" "$ROOTDIR$all"
        fi
      else
        # Mount source is a directory. Mount it only if directory in chroot is
        # empty.
	if [ -e "$all" ] && [ "`ls -1A "$ROOTDIR$all" | wc -l`" -eq 0 ]; then
          mount --bind "$all" "$ROOTDIR$all"
	fi
      fi
    done
  fi
}

umount_chroot_conf()
{
  if [ -n "$ROOTDIR" ]; then
    for all in $ROOTDIR_MOUNT; do
      # Check if file is mount target. Do not use /proc/mounts because detecting
      # of modified mounted files can fail.
      if mount | grep -q '.* on '"$ROOTDIR$all"' .*'; then
        umount "$ROOTDIR$all"
        # Remove temporary created files
        [ -f "$all" ] && rm -f "$ROOTDIR$all"
      fi
    done
  fi
}

check_pidfile() {
  PID="`pidofproc -p "$ROOTDIR$PIDFILE" "$named"`"
  if [ -n "$PID" ] && [ "`ps -p "$PID" --no-headers -o comm`" != "$named" ]; then
    rm -f $ROOTDIR$PIDFILE &> /dev/null
  fi
}

pidofnamed() {
	pidofproc -p "$ROOTDIR$PIDFILE" "$named";
}

# Check if all what named needs running
start()
{
  [ "$EUID" != "0" ] && exit 4

  # Source networking configuration.
  [ -r /etc/sysconfig/network ] && . /etc/sysconfig/network

  # Check that networking is up
  [ "${NETWORKING}" = "no" ] && exit 1


  [ -x /usr/sbin/"$named" ] || exit 5

  if [ ! -s /etc/rndc.key -a ! -s /etc/rndc.conf ]; then
    # Generate rndc.key if doesn't exist AND there is no rndc.conf
    echo -n $"Generating /etc/rndc.key:"
    if /usr/sbin/rndc-confgen -a -r /dev/urandom > /dev/null 2>&1; then
      chmod 640 /etc/rndc.key
      chown root.named /etc/rndc.key
      [ -x /sbin/restorecon ] && /sbin/restorecon /etc/rndc.key
      success $"/etc/rndc.key generation"
      echo
    else
      failure $"/etc/rndc.key generation"
      echo
    fi
  fi

  # Handle -c option
  previous_option='unspecified';
  for a in $OPTIONS; do
    if [ $previous_option = '-c' ]; then
      named_conf=$a;
    fi;
    previous_option=$a;
  done;

  named_conf=${named_conf:-/etc/named.conf};

  # check if named is running before mounting files/dirs
  echo -n $"Starting named: "
  check_pidfile
  if [ -n "`pidofnamed`" ]; then
    echo -n $"named: already running"
    success
    echo
    exit 0;
  fi;

  mount_chroot_conf

  if [ ! -r $ROOTDIR$named_conf ]; then
    echo 'Cannot find configuration file. You could create it by system-config-bind'
    exit 6;
  fi;

  [ -x /sbin/portrelease ] && /sbin/portrelease named &>/dev/null || :

  if ! [ "$DISABLE_ZONE_CHECKING" = yes ]; then
    ckcf_options=''; # enable named-checkzone for each zone (9.3.1+) !
  fi;

  if [ -n "${ROOTDIR}" -a "x${ROOTDIR}" != "x/" ]; then
    OPTIONS="${OPTIONS} -t ${ROOTDIR}"
    ckcf_options="$ckcf_options -t ${ROOTDIR}";
    [ -s /etc/localtime ] && cp -fp /etc/localtime ${ROOTDIR}/etc/localtime;
  fi

  RETVAL=0
  # check if configuration is correct
  if [ -x /usr/sbin/named-checkconf ] && [ -x /usr/sbin/named-checkzone ] && /usr/sbin/named-checkconf $ckcf_options ${named_conf} >/dev/null 2>&1; then

    daemon --pidfile "$ROOTDIR$PIDFILE" /usr/sbin/"$named" -u named ${OPTIONS};
    RETVAL=$?
    if [ $RETVAL -eq 0 ]; then
      rm -f /var/run/{named,named-sdb}.pid;
      ln -s "$ROOTDIR$PIDFILE" /var/run/"$named".pid;
    fi;

  else
    named_err="`/usr/sbin/named-checkconf $ckcf_options $named_conf 2>&1`";	   
    echo
    echo "Error in named configuration:";
    echo "$named_err";
    failure
    echo
    [ -x /usr/bin/logger ] && echo "$named_err" | /usr/bin/logger -pdaemon.error -tnamed;
    umount_chroot_conf
    exit 2;
  fi;
  echo
  if [ $RETVAL -eq 0 ]; then
    touch /var/lock/subsys/named;
  else
    umount_chroot_conf
    exit 7;
  fi
  return 0;
}

stop() {
  [ "$EUID" != "0" ] && exit 4

  # Stop daemons.
  echo -n $"Stopping named: "
  check_pidfile
  [ -x /usr/sbin/rndc ] && /usr/sbin/rndc stop >/dev/null 2>&1;
  RETVAL=$?
  # was rndc successful?
  [ "$RETVAL" -eq 0 ] || \
    killproc -p "$ROOTDIR$PIDFILE" "$named" -TERM >/dev/null 2>&1

  timeout=0
  RETVAL=0
  while pidofnamed &>/dev/null; do
    if [ $timeout -ge $NAMED_SHUTDOWN_TIMEOUT ]; then
      RETVAL=1
      break
    else
      sleep 2 && echo -n "."
      timeout=$((timeout+2))
    fi;
  done

  umount_chroot_conf

  # remove pid files
  if [ $RETVAL -eq 0 ]; then
    rm -f /var/lock/subsys/named
    rm -f /var/run/{named,named-sdb}.pid
  fi;

  if [ $RETVAL -eq 0 ]; then
    success
  else
    failure
    RETVAL=1
  fi;
  echo
  return $RETVAL
}


rhstatus() {
  [ -x /usr/sbin/rndc ] && /usr/sbin/rndc status;
  check_pidfile
  status -p "$ROOTDIR$PIDFILE" -l named /usr/sbin/"$named";
  return $?
}	

restart() {
	stop
	start
}

reload() {
        [ "$EUID" != "0" ] && exit 

        echo -n $"Reloading "$named": "
	check_pidfile
	p=`pidofnamed`
	RETVAL=$?
	if [ "$RETVAL" -eq 0 ]; then 
	    /usr/sbin/rndc reload >/dev/null 2>&1 || /bin/kill -HUP $p;
	    RETVAL=$?
        fi
	[ "$RETVAL" -eq 0 ] && success $"$named reload" || failure $"$named reload"
        echo
	return $RETVAL
}

checkconfig() {
	ckcf_options='-z';
	if [ -n "${ROOTDIR}" -a "x${ROOTDIR}" != "x/" ]; then
		ckcf_options="$ckcf_options -t ${ROOTDIR}";
		if ! [ -e "$ROOTDIR/$PIDFILE" ]; then
			mount_chroot_conf
		fi
	fi;
	if [ -x /usr/sbin/named-checkconf ] && [ -x /usr/sbin/named-checkzone ] && /usr/sbin/named-checkconf $ckcf_options ${named_conf} ; then
		RETVAL=0
	else
		RETVAL=1
	fi
	if ! [ -e "$ROOTDIR/$PIDFILE" ]; then
		umount_chroot_conf
	fi
	return $RETVAL
}

# See how we were called.
case "$1" in
	start)
		start
		;;
	stop)
		stop
		;;
	status)
		rhstatus;
		RETVAL=$?
		;;
	restart)
		restart
		;;
	condrestart|try-restart)
		if [ -e /var/lock/subsys/named ]; then restart; fi
                ;;
	reload)
		reload
		;;
	force-reload)
		if ! reload; then restart; fi
		;;
	checkconfig|configtest|check|test)
		checkconfig
		RETVAL=$?
		;;
	*)
        	echo $"Usage: $0 {start|stop|status|restart|try-restart|reload|force-reload}"
		[ "x$1" = "x" ] && exit 0
		exit 2
esac

exit $RETVAL
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