From 6a0161b34d5199b3946c9e882432a36d5ee5b0ca Mon Sep 17 00:00:00 2001
From: Seth Mos <seth.mos@xs4all.nl>
Date: Tue, 25 Sep 2007 21:54:38 +0000
Subject: Works with multiple ip addresses. FIXME: Compare tmp file with old
 addresses

---
 usr/sbin/update_dns_cache.sh | 34 ++++++++++++++++++++--------------
 1 file changed, 20 insertions(+), 14 deletions(-)

(limited to 'usr/sbin')

diff --git a/usr/sbin/update_dns_cache.sh b/usr/sbin/update_dns_cache.sh
index ca95e2c..32e9996 100755
--- a/usr/sbin/update_dns_cache.sh
+++ b/usr/sbin/update_dns_cache.sh
@@ -1,19 +1,25 @@
 #!/bin/sh
 
-mkdir -p cd /var/db/dnscache 
+mkdir -p /var/db/dnscache 
+cd /var/db/dnscache 
 
 while [ /bin/true ]; do
-        cd /var/db/dnscache 
-        needsfilterreload=0
-        for FILE in *; do
-                OLDIP=`cat $FILE`
-                NEWIP=`host $FILE | grep -v NXDOMAIN | awk '{ print $4 }'`
-                if [ "$OLDIP" != "$NEWIP" ]; then
-                        needsfilterreload=1
-                fi
-        done
-        if [ "$needsfilterreload" -gt 0 ]; then
-                /etc/rc.filter_configure_sync
-        fi
-        sleep 480
+	cd /var/db/dnscache 
+	needsfilterreload=0
+	for FILE in *; do
+	DNSENTRIES=`host -t A $FILE | awk '/address/ {print $4}' | sort`
+		echo "$DNSENTRIES" > /tmp/Njkd98u79.tmp
+		CURRENTNR=`cat /tmp/Njkd98u79.tmp | wc -l | awk '{print $1}'`
+		OLDNR=`cat $FILE | wc -l | awk '{print $1}'`
+		if [ "$CURRENTNR" != "$OLDNR" ]; then
+			needsfilterreload=1
+			# if the number of hosts is different we reload and skip the rest
+			continue
+		fi
+		# We need to compare the files.
+	done
+	if [ "$needsfilterreload" -gt 0 ]; then
+		/etc/rc.filter_configure_sync
+	fi
+	sleep 480
 done
-- 
cgit v1.1