Brandon Miller zznop

I hereby claim:

To claim this, I am signing this object:

I hereby claim:

To claim this, I am signing this object:

	uint32_t factorial(uint32_t number)
	{
	if (number <= 1)
	{
	return 1;
	}

	return number * factorial(number -1);
	}

	int is_odd(int number)
	{
	return number == 0 ? 0 : is_even(abs(number) - 1);
	}

	int is_even(int number)
	{
	return number == 0 ? 1 : is_odd(abs(number) - 1);
	}

	#include <stdio.h>
	#include <stdlib.h>
	#include <stdint.h>

	void take_int(int j)
	{
	if (j == 1337)
	printf("How could this be? j was never initialized!\n");
	}

	/* Plaid CTF 2018 v8 Exploit. Exploit begins around line 240 */


	/* ### Utils, thanks saelo ### */

	//
	// Tiny module that provides big (64bit) integers.
	//
	// Copyright (c) 2016 Samuel Groß
	//

	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
	;;;
	;;; Copyright (C), zznop, brandonkmiller@protonmail.com
	;;;
	;;; This software may be modified and distributed under the terms
	;;; of the MIT license. See the LICENSE file for details.
	;;;
	;;; DESCRIPTION
	;;;
	;;; This PoC shellcode is meant to be compiled as a blob and prepended to a ELF

	# megadrive-loader.py
	# zznop 2019
	#
	# Load ROM as a flat binary, set processor to 68000,
	# and run the script

	import idc
	import idautils
	import ida_bytes
	import ida_funcs