ntdll: Win64 fix for get_pointer_obfuscator.

eba704b8 · Erik de Castro Lopo · Alexandre Julliard · 0ef69ef9 · eba704b8
Commit eba704b8 authored Apr 25, 2008 by Erik de Castro Lopo Committed by Alexandre Julliard Apr 25, 2008
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rtl.c dlls/ntdll/rtl.c +2 -2

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--- a/dlls/ntdll/rtl.c
+++ b/dlls/ntdll/rtl.c
@@ -904,10 +904,10 @@ static DWORD_PTR get_pointer_obfuscator( void )
        rand = RtlUniform( &seed );

        /* handle 64bit pointers */
-        rand ^= RtlUniform( &seed ) << ((sizeof (DWORD_PTR) - sizeof (ULONG))*8);
+        rand ^= (ULONG_PTR)RtlUniform( &seed ) << ((sizeof (DWORD_PTR) - sizeof (ULONG))*8);

        /* set the high bits so dereferencing obfuscated pointers will (usually) crash */
-        rand |= 0xc0000000 << ((sizeof (DWORD_PTR) - sizeof (ULONG))*8);
+        rand |= (ULONG_PTR)0xc0000000 << ((sizeof (DWORD_PTR) - sizeof (ULONG))*8);

        interlocked_cmpxchg_ptr( (void**) &pointer_obfuscator, (void*) rand, NULL );
    }