From 449a2042e79d79b046443ff640acfbdc2d0fbdbe Mon Sep 17 00:00:00 2001
From: Johannes Anderwald <johannes.anderwald@reactos.org>
Date: Fri, 2 Jun 2006 14:08:22 +0000
Subject: [PATCH] forgot header in last commit bug report(1455) & patch by
 w3seek

svn path=/trunk/; revision=22178
---
 reactos/include/reactos/probe.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/reactos/include/reactos/probe.h b/reactos/include/reactos/probe.h
index 742b4a096c5..04e83369ab6 100644
--- a/reactos/include/reactos/probe.h
+++ b/reactos/include/reactos/probe.h
@@ -74,6 +74,15 @@ VOID NTAPI W32kRaiseStatus(NTSTATUS Status);
 #define ProbeForReadUlargeInteger(Ptr) ProbeForReadGenericType(Ptr, ULARGE_INTEGER, __emptyULargeInteger)
 #define ProbeForReadUnicodeString(Ptr) ProbeForReadGenericType(Ptr, UNICODE_STRING, __emptyUnicodeString)
 
+#define ProbeAndZeroHandle(Ptr) \
+    do {                                                                       \
+        if ((ULONG_PTR)(Ptr) + sizeof(HANDLE) - 1 < (ULONG_PTR)(Ptr) ||        \
+            (ULONG_PTR)(Ptr) + sizeof(HANDLE) - 1 >= (ULONG_PTR)MmUserProbeAddress) { \
+            RtlRaiseStatus (STATUS_ACCESS_VIOLATION);                          \
+        }                                                                      \
+        *(volatile HANDLE *)(Ptr) = NULL;                                      \
+    } while (0)
+
 /*
  * Inlined Probing Macros
  */