From 426e3bdc678748af4160277b6bb96e3972a65ece Mon Sep 17 00:00:00 2001
From: Robert Coleman <154176+rjocoleman@users.noreply.github.com>
Date: Wed, 15 Jan 2025 10:24:27 +1300
Subject: [PATCH] limit env variables used for envsubsut in dnsmasq

---
 root/init.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/root/init.sh b/root/init.sh
index abd60da..61c49bb 100755
--- a/root/init.sh
+++ b/root/init.sh
@@ -14,7 +14,7 @@ mkdir -p \
 [[ ! -f /config/nginx/nginx.conf ]] &&
   cp /defaults/nginx.conf /config/nginx/nginx.conf
 [[ ! -f /config/nginx/site-confs/default ]] &&
-  envsubst '${NGINX_PORT}' < /defaults/default > /config/nginx/site-confs/default
+  envsubst '${NGINX_PORT}' </defaults/default >/config/nginx/site-confs/default
 
 # create dnsmasq config, and conditionally add DHCP proxy support
 if [[ ! -f /config/dnsmasq/dnsmasq.conf ]]; then
@@ -28,7 +28,7 @@ if [[ ! -f /config/dnsmasq/dnsmasq.conf ]]; then
       CONTAINER_IP=$(hostname -i)
       export CONTAINER_IP
     fi
-    envsubst </defaults/dnsmasq-dhcpproxy.conf >>/config/dnsmasq/dnsmasq.conf
+    envsubst '${DHCP_RANGE_START} ${CONTAINER_IP}' </defaults/dnsmasq-dhcpproxy.conf >>/config/dnsmasq/dnsmasq.conf
   fi
 fi