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Important: Fixed an error in IP format checking.

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- Due to a mistake in the "grep" command, empty strings would pass the IP
  regex checks, which is not OK.
- Please update your VPN scripts with this commit!
This commit is contained in:
hwdsl2 2016-01-21 09:45:31 -06:00
parent f47d78b0f1
commit b61035137f
2 changed files with 4 additions and 4 deletions
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4
vpnsetup.sh
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@ -93,11 +93,11 @@ PRIVATE_IP=$(wget --retry-connrefused -t 3 -T 15 -qO- 'http://169.254.169.254/la
# Check IPs for correct format
IP_REGEX="^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$"
if printf %s "$PUBLIC_IP" | grep -vEq "$IP_REGEX"; then
if ! printf %s "$PUBLIC_IP" | grep -Eq "$IP_REGEX"; then
echo "Cannot find valid Public IP, please edit the VPN script manually."
exit 1
fi
if printf %s "$PRIVATE_IP" | grep -vEq "$IP_REGEX"; then
if ! printf %s "$PRIVATE_IP" | grep -Eq "$IP_REGEX"; then
echo "Cannot find valid Private IP, please edit the VPN script manually."
exit 1
fi

4
vpnsetup_centos.sh
View File

@ -103,11 +103,11 @@ PRIVATE_IP=$(wget --retry-connrefused -t 3 -T 15 -qO- 'http://169.254.169.254/la
# Check IPs for correct format
IP_REGEX="^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$"
if printf %s "$PUBLIC_IP" | grep -vEq "$IP_REGEX"; then
if ! printf %s "$PUBLIC_IP" | grep -Eq "$IP_REGEX"; then
echo "Cannot find valid Public IP, please edit the VPN script manually."
exit 1
fi
if printf %s "$PRIVATE_IP" | grep -vEq "$IP_REGEX"; then
if ! printf %s "$PRIVATE_IP" | grep -Eq "$IP_REGEX"; then
echo "Cannot find valid Private IP, please edit the VPN script manually."
exit 1
fi