ncp-web: fix port checking for IPv6 dual stackv1.36.3

Signed-off-by: nachoparker <nacho@ownyourbits.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/bin/ncp-diag b/bin/ncp-diag
index b7d65e26..e7f2223a 100644
--- a/bin/ncp-diag
+++ b/bin/ncp-diag
@@ -66,16 +66,15 @@ function is_port_open()
 {
   local port=$1
   local public_ip
-  public_ip="$(curl icanhazip.com 2>/dev/null)" || { echo "closed"; return 1; }
-
+  public_ip="$(curl -4 https://icanhazip.com 2>/dev/null)" || { echo "closed"; return 1; }
   local tmp_file=$(mktemp)
   local token=$(wget -T2 -t1 -qO- --keep-session-cookies --save-cookies $tmp_file https://portchecker.co | grep -oP "_csrf\" value=\"\K.*\"")
-  rm $tmp_file
 
   if [[ "${token}" != "" ]]; then
     wget -T2 -t1 -qO- --load-cookies $tmp_file https://portchecker.co --post-data "target_ip=${public_ip}&port=${port}&_csrf=${token::-1}" \
     | grep -q '<span class="green">open</span>' && { echo "open"; return 1; }
   fi
+  rm $tmp_file
   echo "closed"
 }