#!/bin/sh

: HTTP APIs that return your public IP address [both v4 and v6] "\
https://icanhazip.com
https://ifconfig.io
http://icanhazip.com
http://ifconfig.io/
"

PUBLIC_IP_FETCH_URL="https://icanhazip.com"
PUBLIC_IP6_FETCH_URL="$PUBLIC_IP_FETCH_URL"

printf '%s\ts\n' \
	"$(curl -4 --connect-timeout 5 --silent "$PUBLIC_IP_FETCH_URL")" \
	"$(curl -6 --connect-timeout 5 --silent "$PUBLIC_IP6_FETCH_URL")" \
	| sed	-e 's/ \/ $//' \
		-e 's/^ \/ //' \
		-e 's/^$/[error fetching address]/'