#!/bin/ash

# Check if an argument is passed
if [ "$#" -ne 1 ]; then
    echo "Usage: $0 ip"
    exit 1
fi

ip=$1

# Check if IP is in the range [1..254] and not 2, 99, 88, 98
if ! echo $ip | grep -qE '^(25[0-4]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])$' || [ "$ip" = "2" ] || [ "$ip" = "99" ] || [ "$ip" = "88" ] || [ "$ip" = "98" ]; then
    echo "Invalid IP: $ip. IP should be in the range [1..254] and not 2, 99, 88, 98."
    exit 1
fi

cat << EOF > /etc/network/interfaces
iface lo inet loopback

auto eth0
iface eth0 inet static
    address 158.132.58.$ip/24 
    gateway 158.132.58.2
EOF

rc-service networking restart
sleep 3
rc-service sockd restart 

curl -o /dev/null -s -w "%{http_code}\n" google.com