Hi,
$ sysctl kern.version
kern.version: Darwin Kernel Version 13.1.0: Wed Apr 2 23:52:02 PDT 2014;
root:xnu-2422.92.1~2/RELEASE_X86_64
$ mkdir stack_guard=0x4141414141414141
$ ln -sf ../appledump stack_guard=0x4141414141414141/link
$ stack_guard=0x4141414141414141/link
string(0):
string(1):
string(2): stack_guard=0x7600c0a70d1184c5
string(3):
__stack_chk_guard: 4141414141414141
</bash>
source: http://maker.fea.st/appledump.c
#include <stdio.h>
extern long __stack_chk_guard[8];
int main(int argc, char **argv, char **envp, char **apple)
{
int i;
for (i=0; apple[i]; i++) {
printf("string(%u): %s\n", i, apple[i]);
}
printf("\n\n__stack_chk_guard: %016lx\n", *(long *)__stack_chk_guard);
}
All credit due to the anon pastebin poster.
--
rai
