From 495cd97146b1e08984dff36240b9f21a41df71db Mon Sep 17 00:00:00 2001
From: linn <nature011235@gmail.com>
Date: Wed, 30 Apr 2025 22:16:50 +0800
Subject: [PATCH] done

---
 lab5/antiasan.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lab5/antiasan.c b/lab5/antiasan.c
index 8a8936d..121531a 100644
--- a/lab5/antiasan.c
+++ b/lab5/antiasan.c
@@ -2,5 +2,14 @@
 
 void antiasan(unsigned long addr)
 {
+    extern char gS[];
+   
+    unsigned long gS_addr = (unsigned long)gS;
+    unsigned long shadow_addr = (gS_addr >> 3) + 0x7fff8000;
+    
+    unsigned char *shadow = (unsigned char *)shadow_addr;
 
+    for (int i = 0; i < 5; i++) {
+        shadow[i] = 0;  
+    }
 }