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Guard against zero value

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Ivan Ilves 2017-04-22 19:56:23 +02:00
parent 253a6f830a
commit 67bc01e9c5
1 changed files with 6 additions and 2 deletions
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xiringuito
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@ -42,8 +42,12 @@ while getopts "f:RDrh" o; do
case ${o} in case ${o} in
f) f)
MAX_FAILED_PINGS=${OPTARG} MAX_FAILED_PINGS=${OPTARG}
if [[ ! ${MAX_FAILED_PINGS} =~ [0-9]{1,} ]]; then if [[ ! ${MAX_FAILED_PINGS} =~ ^[0-9]{1,}$ ]]; then
echo "'-f' option accepts only integer values" echo "'-f' option accepts only positive integer values"
exit 1
fi
if [[ ${MAX_FAILED_PINGS} -eq 0 ]]; then
echo "'-f' option value should be greater then zero"
exit 1 exit 1
fi fi
;; ;;