Automatically create a ssh socks proxy and turn it on in network settings

proxy.sh

#!/bin/sh
#######################################
#Remote settings
USER=USERNAME
HOST=HOSTNAME
PORT=22

#Local settings
INAME=Wi-Fi
LPORT=8080

#######################################

if [ "$(id -u)" != "0" ]; then
  echo "This script must be run as root" 1>&2
  exit 1
fi

echo "Starting proxy..."
ssh -ND $LPORT $USER@$HOST -p $PORT & < /dev/null
SSH_PID=$!
networksetup -setsocksfirewallproxystate $INAME on
echo "Started."
read -p "Press any key to close."
networksetup -setsocksfirewallproxystate $INAME off
kill $SSH_PID