-#! /bin/sh
-TARFILE=/tmp/hesiod
-SRC_DIR=/site/_nameserver
+#!/bin/sh
+# This script performs updates of hesiod files on hesiod servers.
+# $Header$
+
+if [ -d /var/athena ] && [ -w /var/athena ]; then
+ exec >/var/athena/moira_update.log 2>&1
+else
+ exec >/tmp/moira_update.log 2>&1
+fi
+
+set -x
+
+PATH=/etc:/bin:/usr/bin:/usr/etc:/usr/athena/etc
+export PATH
+
+# The following exit codes are defined and MUST BE CONSISTENT with the
+# error codes the library uses:
+MR_HESFILE=47836472
+MR_MISSINGFILE=47836473
+MR_NAMED=47836475
+MR_TARERR=47836476
+
+umask 022
+
+# File that will contain the necessary information to be updated
+TARFILE=/var/tmp/hesiod.out
+# Directory into which we will empty the tarfile
+SRC_DIR=/etc/athena/_nameserver
+# Directory into which we will put the final product
DEST_DIR=/etc/athena/nameserver
-if [ ! -d $SRC_DIR ]; then
- /bin/rm -f $SRC_DIR
- /bin/mkdir $SRC_DIR
- /bin/chmod 755 $SRC_DIR
+
+INIT=/etc/init.d/athena-bind
+NAMED_PID=/var/athena/named.pid
+
+# Create the destination directory if it doesn't exist
+if test ! -d $DEST_DIR
+then
+ rm -f $DEST_DIR
+ mkdir $DEST_DIR
+ chmod 755 $DEST_DIR
fi
-cd $SRC_DIR
-for file in `/bin/tar tf $TARFILE`; do
- if [ ./ = $file ]; then continue; fi
- /bin/tar xf $TARFILE $file
- if [ -s $file ]; then
- /bin/mv -f $file $DEST_DIR
- else
- /bin/rm -f $file
+
+# If $SRC_DIR does not already exist, make sure that it gets created
+# on the same parition as $DEST_DIR.
+if test ! -d $SRC_DIR
+then
+ # Tell linux cd/pwd not to be so "helpful".
+ # This will generate an ignorable error on older platforms.
+ set -P
+
+ cd $DEST_DIR
+ mkdir ../_nameserver
+ cd ../_nameserver
+ if test $SRC_DIR != `pwd`
+ then
+ ln -s `pwd` $SRC_DIR
fi
-done
+fi
-/bin/rm -f $TARFILE
-kill -KILL `/bin/cat /etc/named.pid`
+# make sure SRC_DIR is empty
+/bin/rm -rf $SRC_DIR/*
-csh -fc "unlimit; /etc/named"
+# Alert if tarfile doesn't exist
+if test ! -r $TARFILE
+then
+ exit $MR_MISSINGFILE
+fi
-while true; do
- sleep 60
- if [ -e /tmp/named.success ]
- exit 0
- fi
- if [ -e /tmp/named.failure ]
- exit 1
- fi
- if [ -e /etc/named.pid ]
- exit 1
- fi
+cd $SRC_DIR
+tar xvf $TARFILE
+# Don't put up with errors extracting the information
+if test $? -ne 0
+then
+ exit $MR_TARERR
+fi
+for file in *
+do
+ # Make sure the file is not zero-length
+ if test ! -z $file
+ then
+ chmod o+r $file
+ mv -f $file $DEST_DIR
+ if test $? -ne 0
+ then
+ exit $MR_HESFILE
+ fi
+ else
+ rm -f $file
+ exit $MR_MISSINGFILE
+ fi
done
+# Kill off the current named and remove the named.pid file. It is
+# important that this file be removed since the script uses its
+# existance as evidence that named as has been successfully restarted.
+
+# First, get statistics
+/usr/athena/etc/rndc stats
+sleep 1
+$INIT stop
+rm -f $NAMED_PID
+
+# Restart named.
+$INIT start
+sleep 1
+# This timeout is implemented by having the shell check TIMEOUT times
+# for the existance of $NAMED_PID and to sleep INTERVAL seconds
+# between each check.
+
+TIMEOUT=60 # number of INTERVALS until timeout
+INTERVAL=60 # number of seconds between checks
+i=0
+while test $i -lt $TIMEOUT
+do
+ if test -f $NAMED_PID
+ then
+ break
+ fi
+ sleep $INTERVAL
+ i=`expr $i + 1`
+done
+echo out of timeout loop
+# Did it time out?
+if test $i -eq $TIMEOUT
+then
+ exit $MR_NAMED
+fi
+echo no timeout
+# Clean up!
+rm -f $TARFILE
+echo removed tarfile
rm -f $0
-exit
-#
-# $Source$
-# $Header$
-#
+echo removed self
+
+exit 0