named.init

   1 #!/bin/sh
   2 #
   3 # named         This shell script takes care of starting and stopping
   4 #               named (BIND DNS server).
   5 #
   6 # chkconfig:    345 11 89
   7 #
   8 # description:  named (BIND) is a Domain Name Server (DNS) \
   9 #               that is used to resolve host names to IP addresses.
  10
  11 CHROOT_TO_DIR="/var/lib/named"
  12
  13 # Source function library
  14 . /etc/rc.d/init.d/functions
  15
  16 # Source networking configuration
  17 . /etc/sysconfig/network
  18
  19 NAMED_OPT=""
  20
  21 # Try get config..
  22 [ -f /etc/sysconfig/named ] && . /etc/sysconfig/named
  23
  24 # Check that networking is up.
  25 if is_yes "${NETWORKING}"; then
  26         if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status ]; then
  27                 msg_network_down "Named"
  28                 exit 1
  29         fi
  30 else
  31         exit 0
  32 fi
  33
  34 # Sanity check
  35 [ -e /etc/named.conf ] || exit 0
  36
  37 [ -n "$NUM_CPUS" ] && NAMED_OPT="$NAMED_OPT -n $NUM_CPUS"
  38
  39 # configtest itself
  40 configtest() {
  41         /usr/bin/named-checkconf -j -t $CHROOT_TO_DIR 2>&1
  42         return $?
  43 }
  44
  45 checkconfig() {
  46         local details=${1:-0}
  47
  48         if [ $details -eq 1 ]; then
  49                 # run config test and display report (status action)
  50                 show "Checking %s configuration" "Named"; busy
  51                 local out
  52                 out=`configtest 2>&1`
  53                 RETVAL=$?
  54                 [ $RETVAL -eq 0 ] && ok || fail
  55                 [ "$out" ] && echo >&2 "$out"
  56         else
  57                 # run config test and abort with nice message if failed
  58                 # (for actions checking status before action).
  59                 show "Checking %s configuration" "Named"; busy
  60                 configtest >/dev/null 2>&1
  61                 RETVAL=$?
  62                 if [ $RETVAL -eq 0 ]; then
  63                         ok
  64                 else
  65                         fail
  66                         nls 'Configuration test failed. See details with %s "checkconfig"' $0
  67                         exit $RETVAL
  68                 fi
  69         fi
  70 }
  71
  72 start() {
  73         # Check if the service is already running?
  74         if [ -f /var/lock/subsys/named ]; then
  75                 msg_already_running "Named"
  76                 return
  77         fi
  78
  79         [ "$1" -eq 0 ] || checkconfig
  80         msg_starting "Named"
  81         modprobe -s capability > /dev/null 2>&1
  82         [ -f /etc/localtime ] && cp -puL /etc/localtime $CHROOT_TO_DIR/etc/localtime
  83         touch $CHROOT_TO_DIR/named.log && \
  84                 chown named:named $CHROOT_TO_DIR/named.log
  85         daemon --pidfile $CHROOT_TO_DIR/named.pid /usr/sbin/named -u named \
  86                 -t $CHROOT_TO_DIR -c /etc/named.conf $NAMED_OPT </dev/null
  87         RETVAL=$?
  88         [ $RETVAL -eq 0 ] && touch /var/lock/subsys/named
  89 }
  90
  91 stop() {
  92         if [ ! -f /var/lock/subsys/named ]; then
  93                 msg_not_running "Named"
  94                 return
  95         fi
  96
  97         msg_stopping "Named"
  98         killproc --pidfile $CHROOT_TO_DIR/named.pid named
  99         rm -f /var/lock/subsys/named >/dev/null 2>&1
 100 }
 101
 102 reload() {
 103         if [ ! -f /var/lock/subsys/named ]; then
 104                 msg_not_running "Named"
 105                 RETVAL=7
 106                 return
 107         fi
 108
 109         checkconfig
 110         if [ -f /etc/rndc.conf ]; then
 111                 run_cmd "$(nls 'Reloading %s service' 'Named')" /usr/sbin/rndc reload
 112         else
 113                 msg_reloading "Named"
 114                 killproc named -HUP
 115                 RETVAL=$?
 116         fi
 117 }
 118
 119 condrestart() {
 120         if [ ! -f /var/lock/subsys/named ]; then
 121                 msg_not_running "Named"
 122                 RETVAL=$1
 123                 return
 124         fi
 125
 126         checkconfig
 127         stop
 128         start
 129 }
 130
 131 RETVAL=0
 132 # See how we were called.
 133 case "$1" in
 134   start)
 135         start
 136         ;;
 137   stop)
 138         stop
 139         ;;
 140   restart)
 141         checkconfig
 142         stop
 143         start
 144         ;;
 145   try-restart)
 146         condrestart 0
 147         ;;
 148   reload|force-reload)
 149         reload
 150         ;;
 151   checkconfig|configtest)
 152         checkconfig 1
 153         ;;
 154   status)
 155         status named
 156         RETVAL=$?
 157         if [ -f /etc/rndc.conf ]; then
 158                 /usr/sbin/rndc status
 159                 RET=$?
 160                 if [ $RET -ne 0 ]; then
 161                         RETVAL=$RET
 162                 fi
 163         fi
 164         ;;
 165   *)
 166         msg_usage "$0 {start|stop|restart|try-restart|reload|force-reload|configtest|status}"
 167         exit 3
 168 esac
 169
 170 exit $RETVAL