Crypto++
dll.cpp
1 // dll.cpp - written and placed in the public domain by Wei Dai
2 
3 #define CRYPTOPP_MANUALLY_INSTANTIATE_TEMPLATES
4 #define CRYPTOPP_DEFAULT_NO_DLL
5 
6 #include "dll.h"
7 #pragma warning(default: 4660)
8 
9 #if defined(CRYPTOPP_EXPORTS) && defined(CRYPTOPP_WIN32_AVAILABLE)
10 #include <windows.h>
11 #endif
12 
13 #ifndef CRYPTOPP_IMPORTS
14 
15 NAMESPACE_BEGIN(CryptoPP)
16 
17 template<> const byte PKCS_DigestDecoration<SHA1>::decoration[] = {0x30,0x21,0x30,0x09,0x06,0x05,0x2B,0x0E,0x03,0x02,0x1A,0x05,0x00,0x04,0x14};
19 
20 template<> const byte PKCS_DigestDecoration<SHA224>::decoration[] = {0x30,0x2d,0x30,0x0d,0x06,0x09,0x60,0x86,0x48,0x01,0x65,0x03,0x04,0x02,0x04,0x05,0x00,0x04,0x1c};
22 
23 template<> const byte PKCS_DigestDecoration<SHA256>::decoration[] = {0x30,0x31,0x30,0x0d,0x06,0x09,0x60,0x86,0x48,0x01,0x65,0x03,0x04,0x02,0x01,0x05,0x00,0x04,0x20};
25 
26 template<> const byte PKCS_DigestDecoration<SHA384>::decoration[] = {0x30,0x41,0x30,0x0d,0x06,0x09,0x60,0x86,0x48,0x01,0x65,0x03,0x04,0x02,0x02,0x05,0x00,0x04,0x30};
28 
29 template<> const byte PKCS_DigestDecoration<SHA512>::decoration[] = {0x30,0x51,0x30,0x0d,0x06,0x09,0x60,0x86,0x48,0x01,0x65,0x03,0x04,0x02,0x03,0x05,0x00,0x04,0x40};
31 
32 template<> const byte EMSA2HashId<SHA>::id = 0x33;
33 template<> const byte EMSA2HashId<SHA224>::id = 0x38;
34 template<> const byte EMSA2HashId<SHA256>::id = 0x34;
35 template<> const byte EMSA2HashId<SHA384>::id = 0x36;
36 template<> const byte EMSA2HashId<SHA512>::id = 0x35;
37 
38 NAMESPACE_END
39 
40 #endif
41 
42 #ifdef CRYPTOPP_EXPORTS
43 
44 USING_NAMESPACE(CryptoPP)
45 
46 #if !(defined(_MSC_VER) && (_MSC_VER < 1300))
47 using std::set_new_handler;
48 #endif
49 
50 static PNew s_pNew = NULL;
51 static PDelete s_pDelete = NULL;
52 
53 static void * New (size_t size)
54 {
55  void *p;
56  while (!(p = malloc(size)))
57  CallNewHandler();
58 
59  return p;
60 }
61 
62 static void SetNewAndDeleteFunctionPointers()
63 {
64  void *p = NULL;
65  HMODULE hModule = NULL;
66  MEMORY_BASIC_INFORMATION mbi;
67 
68  while (true)
69  {
70  VirtualQuery(p, &mbi, sizeof(mbi));
71 
72  if (p >= (char *)mbi.BaseAddress + mbi.RegionSize)
73  break;
74 
75  p = (char *)mbi.BaseAddress + mbi.RegionSize;
76 
77  if (!mbi.AllocationBase || mbi.AllocationBase == hModule)
78  continue;
79 
80  hModule = HMODULE(mbi.AllocationBase);
81 
82  PGetNewAndDelete pGetNewAndDelete = (PGetNewAndDelete)GetProcAddress(hModule, "GetNewAndDeleteForCryptoPP");
83  if (pGetNewAndDelete)
84  {
85  pGetNewAndDelete(s_pNew, s_pDelete);
86  return;
87  }
88 
89  PSetNewAndDelete pSetNewAndDelete = (PSetNewAndDelete)GetProcAddress(hModule, "SetNewAndDeleteFromCryptoPP");
90  if (pSetNewAndDelete)
91  {
92  s_pNew = &New;
93  s_pDelete = &free;
94  pSetNewAndDelete(s_pNew, s_pDelete, &set_new_handler);
95  return;
96  }
97  }
98 
99  // try getting these directly using mangled names of new and delete operators
100 
101  hModule = GetModuleHandle("msvcrtd");
102  if (!hModule)
103  hModule = GetModuleHandle("msvcrt");
104  if (hModule)
105  {
106  // 32-bit versions
107  s_pNew = (PNew)GetProcAddress(hModule, "??2@YAPAXI@Z");
108  s_pDelete = (PDelete)GetProcAddress(hModule, "??3@YAXPAX@Z");
109  if (s_pNew && s_pDelete)
110  return;
111 
112  // 64-bit versions
113  s_pNew = (PNew)GetProcAddress(hModule, "??2@YAPEAX_K@Z");
114  s_pDelete = (PDelete)GetProcAddress(hModule, "??3@YAXPEAX@Z");
115  if (s_pNew && s_pDelete)
116  return;
117  }
118 
119  OutputDebugString("Crypto++ was not able to obtain new and delete function pointers.\n");
120  throw 0;
121 }
122 
123 void * operator new (size_t size)
124 {
125  if (!s_pNew)
126  SetNewAndDeleteFunctionPointers();
127 
128  return s_pNew(size);
129 }
130 
131 void operator delete (void * p)
132 {
133  s_pDelete(p);
134 }
135 
136 void * operator new [] (size_t size)
137 {
138  return operator new (size);
139 }
140 
141 void operator delete [] (void * p)
142 {
143  operator delete (p);
144 }
145 
146 #endif // #ifdef CRYPTOPP_EXPORTS
SHA-1
Definition: sha.h:9