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著名的密码库Crypto++的文档 C++语言的杰作。程序员必备。

<a name="l00067"></a>00067 
<a name="l00068"></a>00068         <span class="keywordflow">while</span> (<span class="keyword">true</span>)
<a name="l00069"></a>00069         {
<a name="l00070"></a>00070                 VirtualQuery(p, &amp;mbi, <span class="keyword">sizeof</span>(mbi));
<a name="l00071"></a>00071 
<a name="l00072"></a>00072                 <span class="keywordflow">if</span> (p &gt;= (<span class="keywordtype">char</span> *)mbi.BaseAddress + mbi.RegionSize)
<a name="l00073"></a>00073                         <span class="keywordflow">break</span>;
<a name="l00074"></a>00074 
<a name="l00075"></a>00075                 p = (<span class="keywordtype">char</span> *)mbi.BaseAddress + mbi.RegionSize;
<a name="l00076"></a>00076 
<a name="l00077"></a>00077                 if (!mbi.AllocationBase || mbi.AllocationBase == hModule)
<a name="l00078"></a>00078                         <span class="keywordflow">continue</span>;
<a name="l00079"></a>00079 
<a name="l00080"></a>00080                 hModule = HMODULE(mbi.AllocationBase);
<a name="l00081"></a>00081 
<a name="l00082"></a>00082                 PGetNewAndDelete pGetNewAndDelete = (PGetNewAndDelete)GetProcAddress(hModule, <span class="stringliteral">"GetNewAndDeleteForCryptoPP"</span>);
<a name="l00083"></a>00083                 <span class="keywordflow">if</span> (pGetNewAndDelete)
<a name="l00084"></a>00084                 {
<a name="l00085"></a>00085                         pGetNewAndDelete(s_pNew, s_pDelete);
<a name="l00086"></a>00086                         <span class="keywordflow">return</span>;
<a name="l00087"></a>00087                 }
<a name="l00088"></a>00088 
<a name="l00089"></a>00089                 PSetNewAndDelete pSetNewAndDelete = (PSetNewAndDelete)GetProcAddress(hModule, <span class="stringliteral">"SetNewAndDeleteFromCryptoPP"</span>);
<a name="l00090"></a>00090                 <span class="keywordflow">if</span> (pSetNewAndDelete)
<a name="l00091"></a>00091                 {
<a name="l00092"></a>00092                         s_pNew = &amp;New;
<a name="l00093"></a>00093                         s_pDelete = &amp;free;
<a name="l00094"></a>00094                         pSetNewAndDelete(s_pNew, s_pDelete, &amp;set_new_handler);
<a name="l00095"></a>00095                         <span class="keywordflow">return</span>;
<a name="l00096"></a>00096                 }
<a name="l00097"></a>00097         }
<a name="l00098"></a>00098 
<a name="l00099"></a>00099         <span class="comment">// try getting these directly using mangled names of new and delete operators</span>
<a name="l00100"></a>00100 
<a name="l00101"></a>00101         hModule = GetModuleHandle(<span class="stringliteral">"msvcrtd"</span>);
<a name="l00102"></a>00102         <span class="keywordflow">if</span> (!hModule)
<a name="l00103"></a>00103                 hModule = GetModuleHandle(<span class="stringliteral">"msvcrt"</span>);
<a name="l00104"></a>00104         <span class="keywordflow">if</span> (hModule)
<a name="l00105"></a>00105         {
<a name="l00106"></a>00106                 <span class="comment">// 32-bit versions</span>
<a name="l00107"></a>00107                 s_pNew = (PNew)GetProcAddress(hModule, <span class="stringliteral">"??2@YAPAXI@Z"</span>);
<a name="l00108"></a>00108                 s_pDelete = (PDelete)GetProcAddress(hModule, <span class="stringliteral">"??3@YAXPAX@Z"</span>);
<a name="l00109"></a>00109                 <span class="keywordflow">if</span> (s_pNew &amp;&amp; s_pDelete)
<a name="l00110"></a>00110                         <span class="keywordflow">return</span>;
<a name="l00111"></a>00111 
<a name="l00112"></a>00112                 <span class="comment">// 64-bit versions</span>
<a name="l00113"></a>00113                 s_pNew = (PNew)GetProcAddress(hModule, <span class="stringliteral">"??2@YAPEAX_K@Z"</span>);
<a name="l00114"></a>00114                 s_pDelete = (PDelete)GetProcAddress(hModule, <span class="stringliteral">"??3@YAXPEAX@Z"</span>);
<a name="l00115"></a>00115                 <span class="keywordflow">if</span> (s_pNew &amp;&amp; s_pDelete)
<a name="l00116"></a>00116                         <span class="keywordflow">return</span>;
<a name="l00117"></a>00117         }
<a name="l00118"></a>00118 
<a name="l00119"></a>00119         OutputDebugString(<span class="stringliteral">"Crypto++ was not able to obtain new and delete function pointers.\n"</span>);
<a name="l00120"></a>00120         <span class="keywordflow">throw</span> 0;
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122 
<a name="l00123"></a>00123 <span class="keywordtype">void</span> * operator new (<span class="keywordtype">size_t</span> size)
<a name="l00124"></a>00124 {
<a name="l00125"></a>00125         <span class="keywordflow">if</span> (!s_pNew)
<a name="l00126"></a>00126                 SetNewAndDeleteFunctionPointers();
<a name="l00127"></a>00127 
<a name="l00128"></a>00128         <span class="keywordflow">return</span> s_pNew(size);
<a name="l00129"></a>00129 }
<a name="l00130"></a>00130 
<a name="l00131"></a>00131 <span class="keywordtype">void</span> operator delete (<span class="keywordtype">void</span> * p)
<a name="l00132"></a>00132 {
<a name="l00133"></a>00133         s_pDelete(p);
<a name="l00134"></a>00134 }
<a name="l00135"></a>00135 
<a name="l00136"></a>00136 <span class="keywordtype">void</span> * operator new [] (<span class="keywordtype">size_t</span> size)
<a name="l00137"></a>00137 {
<a name="l00138"></a>00138         <span class="keywordflow">return</span> operator new (size);
<a name="l00139"></a>00139 }
<a name="l00140"></a>00140 
<a name="l00141"></a>00141 <span class="keywordtype">void</span> operator delete [] (<span class="keywordtype">void</span> * p)
<a name="l00142"></a>00142 {
<a name="l00143"></a>00143         operator delete (p);
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145 
<a name="l00146"></a>00146 <span class="preprocessor">#endif  // #ifdef CRYPTOPP_EXPORTS</span>
</pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Fri Jun 1 11:11:20 2007 for Crypto++ by&nbsp;
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