All pastes #574924 Raw Edit

x86 canary

public text v1 · immutable
·published 2007-06-18 19:56 UTC
rendered paste body

#include <stdio.h>

void go(void);
void findguard(void);

extern unsigned long int __guard;

int main(void) {
  printf("__guard@@GLIBC mem: [[0x%0*x]] value: [[0x%0*x]]\n", 8, &__guard, 8, __guard);
  go();
  return(0);
}

void go(void) {
  findguard();
  return;
}

void findguard() {
  int loca = 0xdeadbeef;
  int *g = &loca; g += 0x1;
  printf("__guard canary mem: [[0x%0*x]] value: [[0x%0*x]]\n", 8, g, 8, *g);
  while(1);
  return;
}