#!/bin/bash

PROXY_CONF='/etc/tinyproxy.conf'

re='^[0-9]+$'
if ! [[ $1 =~ $re ]] ; then
   echo "Port: Not a number" >&2; exit 1
fi

# Port: Specify the port which tinyproxy will listen on.  Please note
# that should you choose to run on a port lower than 1024 you will need
# to start tinyproxy using root.

if [ $1 \< 1024 ];
then 
    echo "$1 is lower than 1024. Ports below 1024 are not permitted.";
    exit 1
fi;

sed -i -e"s,^Port .*,Port $1," $PROXY_CONF

exit 0