28 lines
1.1 KiB
Markdown
28 lines
1.1 KiB
Markdown
|
== Title ==
|
||
|
|
||
|
The Scheming Schemer 1
|
||
|
|
||
|
== Description ==
|
||
|
|
||
|
Welcome to the series of challenges called the Scheming Schemer.
|
||
|
Each challenge should be progressively more difficult, with this first challenge being very easy!
|
||
|
This challenge contains a simple calculator app made in r5rs.
|
||
|
Your task is to try to make it print the flag.
|
||
|
Obviously, the flag is not on your computer, the code for this challenge also runs on a remote server!
|
||
|
You can use telnet to interact with the app as follows:
|
||
|
<TODO>
|
||
|
Try to have a look at the what the code does and print the flag!
|
||
|
|
||
|
Hint: You can create a file containing some text on your own computer to test things locally.
|
||
|
Once you think you found the solution, try it on the server!
|
||
|
|
||
|
== Files ==
|
||
|
Participants should receive the calculator-app.rkt file.
|
||
|
|
||
|
== Deployment ==
|
||
|
Something something telnet/netcat
|
||
|
|
||
|
10, 20, 30 punten, exploits over een netwerk.
|
||
|
In plaats van zelf te deployen, wat teveel werk is, kunt ge gewoon de bestanden runnen via racket (e.g. racket calculator-app.rkt) en het via de cmd line doen, als werkt toch gewoon via stdin en stdout.
|
||
|
Gewoon het flag.txt bestand niet open doen.
|