put file in /jffs/ after flash MERLIN firmware

ddns-start

#!/bin/sh

EMAIL="username@gmail.com"
ZONEID="your_zone_id"
RECORDID="to_update_record_id"
RECORDNAME="to_update_name"
RECORDTTL="1"
API="your_api_key"
IP=${1}

RES=`curl -s -X PUT "https://api.cloudflare.com/client/v4/zones/${ZONEID}/dns_records/${RECORDID}" \
     -H "X-Auth-Email: ${EMAIL}" \
     -H "X-Auth-Key: ${API}" \
     -H "Content-Type: application/json" \
     --data "{\"type\":\"A\",\"name\":\"${RECORDNAME}\",\"content\":\"${IP}\",\"ttl\":${RECORDTTL},\"proxied\":false}"`

echo $RES | grep '"success":\ *true' > /dev/null

if [ $? -eq 0 ]; then
  #echo success
  /sbin/ddns_custom_updated 1
else
  #echo failed
  /sbin/ddns_custom_updated 0
fi