woody-woodpacker/srcs/encrypt.c

#include "../includes/woody.h"

void	encrypt(char *file, unsigned long int offset, unsigned long int size)
{
	size_t i = 0;
	while (i < size)
	{
		file[offset + i] = file[offset + i] - 1;
		++i;
	}
	printf("\nENCRYPTION : \n");
	printf("	File encrypted from %ld (%lx) to %ld (%lx)\n", offset, offset, offset + size, offset + size);
	printf("	Size of encryption = %ld (%lx)\n", size, size);
	printf("\n");
}