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ntdll: Encode the function pointers in the vectored handler list.

This commit is contained in:
Alexandre Julliard 2011-06-28 08:01:48 -05:00
parent 2497a91f6b
commit 30cb179fe2
2 changed files with 8 additions and 4 deletions
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10
dlls/ntdll/exception.c
View File

@ -155,6 +155,7 @@ LONG call_vectored_handlers( EXCEPTION_RECORD *rec, CONTEXT *context )
struct list *ptr;
LONG ret = EXCEPTION_CONTINUE_SEARCH;
EXCEPTION_POINTERS except_ptrs;
PVECTORED_EXCEPTION_HANDLER func;
VECTORED_HANDLER *handler, *to_free = NULL;
except_ptrs.ExceptionRecord = rec;
@ -166,14 +167,15 @@ LONG call_vectored_handlers( EXCEPTION_RECORD *rec, CONTEXT *context )
{
handler = LIST_ENTRY( ptr, VECTORED_HANDLER, entry );
handler->count++;
func = RtlDecodePointer( handler->func );
RtlLeaveCriticalSection( &vectored_handlers_section );
RtlFreeHeap( GetProcessHeap(), 0, to_free );
to_free = NULL;
TRACE( "calling handler at %p code=%x flags=%x\n",
handler->func, rec->ExceptionCode, rec->ExceptionFlags );
ret = handler->func( &except_ptrs );
TRACE( "handler at %p returned %x\n", handler->func, ret );
func, rec->ExceptionCode, rec->ExceptionFlags );
ret = func( &except_ptrs );
TRACE( "handler at %p returned %x\n", func, ret );
RtlEnterCriticalSection( &vectored_handlers_section );
ptr = list_next( &vectored_handlers, ptr );
@ -226,7 +228,7 @@ PVOID WINAPI RtlAddVectoredExceptionHandler( ULONG first, PVECTORED_EXCEPTION_HA
VECTORED_HANDLER *handler = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*handler) );
if (handler)
{
handler->func = func;
handler->func = RtlEncodePointer( func );
handler->count = 1;
RtlEnterCriticalSection( &vectored_handlers_section );
if (first) list_add_head( &vectored_handlers, &handler->entry );

2
include/winternl.h
View File

@ -2298,6 +2298,7 @@ NTSYSAPI BOOLEAN WINAPI RtlCreateUnicodeString(PUNICODE_STRING,LPCWSTR);
NTSYSAPI BOOLEAN WINAPI RtlCreateUnicodeStringFromAsciiz(PUNICODE_STRING,LPCSTR);
NTSYSAPI NTSTATUS WINAPI RtlCreateUserThread(HANDLE,const SECURITY_DESCRIPTOR*,BOOLEAN,PVOID,SIZE_T,SIZE_T,PRTL_THREAD_START_ROUTINE,void*,HANDLE*,CLIENT_ID*);
NTSYSAPI void WINAPI RtlDeactivateActivationContext(DWORD,ULONG_PTR);
NTSYSAPI PVOID WINAPI RtlDecodePointer(PVOID);
NTSYSAPI NTSTATUS WINAPI RtlDecompressBuffer(USHORT,PUCHAR,ULONG,PUCHAR,ULONG,PULONG);
NTSYSAPI NTSTATUS WINAPI RtlDeleteAce(PACL,DWORD);
NTSYSAPI NTSTATUS WINAPI RtlDeleteAtomFromAtomTable(RTL_ATOM_TABLE,RTL_ATOM);
@ -2326,6 +2327,7 @@ NTSYSAPI NTSTATUS WINAPI RtlDowncaseUnicodeString(UNICODE_STRING*,const UNICODE
NTSYSAPI void WINAPI RtlDumpResource(LPRTL_RWLOCK);
NTSYSAPI NTSTATUS WINAPI RtlDuplicateUnicodeString(int,const UNICODE_STRING*,UNICODE_STRING*);
NTSYSAPI NTSTATUS WINAPI RtlEmptyAtomTable(RTL_ATOM_TABLE,BOOLEAN);
NTSYSAPI PVOID WINAPI RtlEncodePointer(PVOID);
NTSYSAPI NTSTATUS WINAPI RtlEnterCriticalSection(RTL_CRITICAL_SECTION *);
NTSYSAPI void WINAPI RtlEraseUnicodeString(UNICODE_STRING*);
NTSYSAPI NTSTATUS WINAPI RtlEqualComputerName(const UNICODE_STRING*,const UNICODE_STRING*);