#!/bin/bash

debug=0
if [ "$1" == "-d" -o "$1" == "--debug" -o "$1" == "debug" ]; then
    debug=1
fi

wget -4 -t 2 -T 7 -O - http://www.internic.net 2>/dev/null | grep -iq html
test1=$?
wget -4 -t 2 -T 7 -O - http://maratona.ime.usp.br 2>/dev/null | grep -iq html
test2=$?
wget -4 --no-check-certificate -t 2 -T 7 -O - https://www.wikipedia.org 2>/dev/null | grep -iq html
test3=$?

if [ "$test1" == "0" -o "$test2" == "0" -o "$test3" == "0" ]; then
    if [ $debug == 1 ]; then
	echo "internet problem (1-$test1-$test2-$test3)"
    fi
    exit 1
fi

wget -4 -t 2 -T 7 -O - http://192.0.32.9 2>/dev/null | grep -iq html
test1=$?
wget -4 -t 2 -T 7 -O - http://143.107.45.22 2>/dev/null | grep -iq html
test2=$?
wget -4 --no-check-certificate -t 2 -T 7 -O - https://91.198.174.192 2>/dev/null | grep -iq html
test3=$?

if [ "$test1" == "0" -o "$test2" == "0" -o "$test3" == "0" ]; then
    if [ $debug == 1 ]; then
	echo "internet problem (2-$test1-$test2-$test3)"
    fi
    exit 2
fi    
exit 0