[33] | 1 | //////////////////////////////////////////////////////////// |
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| 2 | // Copyright (C) Roman Ryltsov, 2008-2011 |
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| 3 | // Created by Roman Ryltsov roman@alax.info |
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| 4 | // |
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| 5 | // $Id: VirtualHeapPtr.cpp 41 2011-11-19 17:20:45Z roman $ |
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| 6 | |
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| 7 | #include "stdafx.h" |
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[34] | 8 | #include "VirtualHeapPtr.h" |
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[33] | 9 | |
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| 10 | //////////////////////////////////////////////////////////// |
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| 11 | // Main |
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| 12 | |
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| 13 | int _tmain(int argc, _TCHAR* argv[]) |
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| 14 | { |
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[34] | 15 | _tprintf(_T("g_GlobalVirtualAllocator.GetPageSize() %d\n\n"), g_GlobalVirtualAllocator.GetPageSize()); |
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| 16 | CDebugHeapPtr<BYTE> p; |
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[33] | 17 | p.Allocate(1); |
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| 18 | p[0] = 0x01; |
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| 19 | _tprintf(_T("p[0] 0x%02X\n"), p[0]); |
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| 20 | ATLVERIFY(p.Reallocate(2)); |
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| 21 | p[1] = 0x02; |
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| 22 | _tprintf(_T("p[0] 0x%02X, p[1] 0x%02X\n"), p[0], p[1]); |
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| 23 | p[0] = 0x03; |
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| 24 | _tprintf(_T("p[0] 0x%02X, p[1] 0x%02X\n"), p[0], p[1]); |
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[34] | 25 | #pragma region PAGE_READONLY |
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| 26 | //if(FALSE) |
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[33] | 27 | { |
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| 28 | p.SetProtection(PAGE_READONLY); |
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| 29 | _ATLTRY |
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| 30 | { |
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| 31 | p[1] = 0x04; |
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| 32 | _tprintf(_T("p[0] 0x%02X, p[1] 0x%02X\n"), p[0], p[1]); |
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| 33 | } |
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| 34 | _ATLCATCHALL() |
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| 35 | { |
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[34] | 36 | _tprintf(_T("Oopsie in line %d (Failed to write to PAGE_READONLY memory)\n"), __LINE__); |
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[33] | 37 | } |
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| 38 | p.SetProtection(PAGE_READWRITE); |
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| 39 | p[1] = 0x05; |
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| 40 | _tprintf(_T("p[0] 0x%02X, p[1] 0x%02X\n"), p[0], p[1]); |
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| 41 | } |
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[34] | 42 | #pragma endregion |
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| 43 | volatile BYTE n; |
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[41] | 44 | //if(FALSE) |
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[33] | 45 | { |
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[41] | 46 | p.SetProtection(PAGE_READWRITE | PAGE_GUARD); |
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| 47 | #pragma region PAGE_GUARD |
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| 48 | _ATLTRY |
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| 49 | { |
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| 50 | n = p[0]; |
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| 51 | } |
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| 52 | _ATLCATCHALL() |
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| 53 | { |
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| 54 | _tprintf(_T("Oopsie in line %d (First PAGE_GUARD access)\n"), __LINE__); |
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| 55 | } |
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| 56 | _ATLTRY |
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| 57 | { |
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| 58 | n = p[1]; |
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| 59 | } |
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| 60 | _ATLCATCHALL() |
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| 61 | { |
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| 62 | _tprintf(_T("Oopsie in line %d (Second PAGE_GUARD access)\n"), __LINE__); |
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| 63 | } |
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[33] | 64 | } |
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[34] | 65 | #pragma endregion |
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| 66 | #pragma region Invalid Index |
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| 67 | _ATLTRY |
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| 68 | { |
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| 69 | n = p[-1]; |
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| 70 | } |
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| 71 | _ATLCATCHALL() |
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| 72 | { |
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| 73 | _tprintf(_T("Oopsie in line %d (Reading with a too small index)\n"), __LINE__); |
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| 74 | } |
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| 75 | _ATLTRY |
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| 76 | { |
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[36] | 77 | p[-1] = n + 1; |
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[34] | 78 | } |
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| 79 | _ATLCATCHALL() |
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| 80 | { |
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| 81 | _tprintf(_T("Oopsie in line %d (Writing with a too small index)\n"), __LINE__); |
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| 82 | } |
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| 83 | _ATLTRY |
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| 84 | { |
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| 85 | n = p[2]; |
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| 86 | } |
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| 87 | _ATLCATCHALL() |
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| 88 | { |
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| 89 | _tprintf(_T("Oopsie in line %d (Reading with a too large index)\n"), __LINE__); |
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| 90 | } |
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| 91 | _ATLTRY |
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| 92 | { |
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[36] | 93 | p[2] = n + 1; |
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[34] | 94 | } |
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| 95 | _ATLCATCHALL() |
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| 96 | { |
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| 97 | _tprintf(_T("Oopsie in line %d (Writing with a too large index)\n"), __LINE__); |
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| 98 | } |
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| 99 | #pragma endregion |
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[33] | 100 | return 0; |
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| 101 | } |
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| 102 | |
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