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Added checking to ensure the user does actually supply a DNS entity to diagnose

This commit is contained in:
MaffC 2013-02-04 02:59:21 +00:00
parent b9d4a11591
commit 0b30a0e469
1 changed files with 16 additions and 7 deletions
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23
nscheck.sh
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@ -24,6 +24,17 @@ if [ $? -ne 0 -o -z "$DIG_BIN" ]; then
exit 1 exit 1
fi fi
#Functions
function usage () {
echo "nscheck 0.1: Bash script to do DNS diagnosis.
NOTE: This script will not, at present, function properly for DNS queries which result in more than one record of the same type (ie, DNS round robins)
Usage: nscheck [-4|-6] DNS.ENTITY
nscheck -h: Show this usage.
nscheck -4: Use IPv4 [Default].
nscheck -6: Use IPv6."
}
#Internal variables #Internal variables
DIG_RECORD_TYPE="A" DIG_RECORD_TYPE="A"
ZONE="" ZONE=""
@ -33,17 +44,15 @@ if [ "$1" == "-6" ]; then
elif [ "$1" == "-4" ]; then elif [ "$1" == "-4" ]; then
ZONE=$2 ZONE=$2
elif [ "$1" == "-h" ]; then elif [ "$1" == "-h" ]; then
echo "nscheck 0.1: Bash script to do DNS diagnosis. usage
NOTE: This script will not, at present, function properly for DNS queries which result in more than one record of the same type (ie, DNS round robins)
Usage: nscheck [-4|-6] DNS.ENTITY
nscheck -h: Show this usage.
nscheck -4: Use IPv4 [Default].
nscheck -6: Use IPv6."
exit 0 exit 0
else else
ZONE=$1 ZONE=$1
fi fi
if [ -z "$ZONE" ]; then
usage
exit 1
fi
DOMAIN=$ZONE DOMAIN=$ZONE
IPS_REPORTED="" IPS_REPORTED=""
NS_REPORTED="" NS_REPORTED=""