#!/bin/sh
set -eu

if [ $# -ne 3 ]; then
    echo 'usage: netns-publish PUBLIC_PORT NETNS_NAME NETNS_ADDRESS:NETNS_PORT'
    exit 1
fi

exec socat tcp-listen:"$1",reuseaddr,fork "exec:ip netns exec $2 socat stdio 'tcp-connect:$3',nofork"