:global ddnsuser "USER"
:global ddnspass "PASS"
:global ddnshost "MEUHOST.COM.SEILA"
:global waninterface "NOME_DA_INTERFACE_QUE_CONECTA_NA_INTERNET"

:global ddnsserver "SERVIDOR_QUE_ATUALIZA_OS_HOSTS"

:global ipddns [:resolve $ddnshost];
:global ipfreshwithmask [ /ip address get [/ip address find interface=$waninterface ] address ]
:global ipfresh [ :pick $ipfreshwithmask 0 [ :find $ipfreshwithmask "/" ] ]

# ----------------------------------------------------------------------------------------------

:log info ("DDNS: Iniciando script.")

:if ([ :typeof $ipfresh ] = "nothing" ) do={
	:log info ("DDNS: Interface '$waninterface' sem Ip.")
	:quit
}

:if ($ipddns != $ipfresh) do={
	:log info ("DDNS: Ip alterado de $ipddns para $ipfresh")
	:log info "DDNS: Atualizando Ip no servior ...!"

	:global url "$ddnsserver/nic/update\?hostname=$ddnshost&myip=$ipfresh&username=$ddnsuser&password=$ddnspass"
	/tool fetch url=$url mode=https dst-path=DDNS
	/file remove [/file find name="DDNS"];

	:delay 5s

} else={
	:log info "DDNS: Nenhuma mudança para fazer.";
}