#include <stddef.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>

// Whatever
#define PAGE_SIZE 65536

int main(int argc, char **argv)
{
	int fd;
	void *map;

	fd = open("/dev/zero", O_RDONLY); 

	map = mmap(NULL, 3*PAGE_SIZE, PROT_READ | PROT_WRITE,
		MAP_PRIVATE |MAP_ANONYMOUS , -1, 0);
	munmap(map + PAGE_SIZE, PAGE_SIZE);

	return read(fd, map + PAGE_SIZE - 17, PAGE_SIZE);
}