Showing posts with label sh. Show all posts
Showing posts with label sh. Show all posts

Monday, September 08, 2008

Minimal remote webserver test.

Using sh and telnet magic.

Workmate of mine had to resort to perl. I was sure it could be done with just a sh-script. I was right. What a beauty. Copy & Paste below or go to pastebin.

#!/bin/sh
timeout=10
tracefile=telnettrace
HOST=$1

telnet_commands() {
tout=${timeout}
echo open $1 80

sleep 1

while [ "$tout" -ge 0 ]
do
if tail -1 $tracefile 2>/dev/null | grep "character" > /dev/null
then
echo "HEAD / HTTP/1.0\n"
tout=-15
continue
else
sleep 1
tout=$[$tout-1]
fi
done
tout=${timeout}
while [ "$tout" -ge 0 ]
do
if tail -1 $tracefile 2>/dev/null | grep "^$" > /dev/null
then
tout=-15
continue
else
sleep 1
tout=$[$tout-1]
fi
done
}

telnet_commands $HOST | telnet |tee $tracefile