316 lines
8.7 KiB
C++
316 lines
8.7 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1997 - 1999
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//
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// File: demand.cpp
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//
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//--------------------------------------------------------------------------
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/*
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** d e m a n d . c p p
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**
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** Purpose: implement the loader functions for defer/demand -loaded libraries
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**
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** Creators: jimsch, brimo, t-erikne
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** Created: 5/15/97
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**
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** Copyright (C) Microsoft Corp. 1997
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*/
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#include "global.hxx"
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#include <dbgdef.h>
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// W4 stuff
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#pragma warning(disable: 4201) // nameless struct/union
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#pragma warning(disable: 4514) // unreferenced inline function removed
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#define IMPLEMENT_LOADER_FUNCTIONS
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#include "demand.h"
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#ifndef MAC
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////////////////////////////////////////////////////////////////////////////
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//
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// Macros
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#define CRIT_GET_PROC_ADDR(h, fn, temp) \
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temp = (TYP_##fn) GetProcAddress(h, #fn); \
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if (temp) \
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VAR_##fn = temp; \
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else \
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{ \
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AssertSz(VAR_##fn" failed to load"); \
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goto error; \
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}
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#define RESET(fn) \
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VAR_##fn = LOADER_##fn;
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#define GET_PROC_ADDR(h, fn) \
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VAR_##fn = (TYP_##fn) GetProcAddress(h, #fn); \
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// Assert(VAR_##fn != NULL);
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#define GET_PROC_ADDR3(h, fn, varname) \
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VAR_##varname = (TYP_##varname) GetProcAddress(h, #fn); \
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// Assert(VAR_##varname != NULL);
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////////////////////////////////////////////////////////////////////////////
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//
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// Variables
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static HMODULE s_hCrypt = 0;
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static HMODULE s_hAdvApi = 0;
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static HMODULE s_hShell32 = 0;
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#if 0 // JLS
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static HMODULE s_hShLWAPI = 0;
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static HMODULE s_hURLMon = 0;
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static HMODULE s_hVersion = 0;
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static HMODULE s_hWinINET = 0;
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static HMODULE s_hComctl32 = 0;
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static HMODULE s_hPstoreC = 0;
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static HMODULE s_hMAPI = 0;
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static HMODULE s_hWSOCK = 0;
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static HMODULE s_hOLEAUT = 0;
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static HMODULE s_hKernel = 0;
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#endif // 0 // JLS
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#ifdef USE_CRITSEC
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static CRITICAL_SECTION cs = {0};
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#endif
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#ifdef DEBUG
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static BOOL s_fInit = FALSE;
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#endif
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////////////////////////////////////////////////////////////////////////////
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//
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// Management functions
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void InitDemandLoadedLibs()
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{
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#ifdef USE_CRITSEC
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InitializeCriticalSection(&cs);
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#endif
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#ifdef DEBUG
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s_fInit = TRUE;
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#endif
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}
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void FreeDemandLoadedLibs()
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{
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#ifdef USE_CRITSEC
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EnterCriticalSection(&cs);
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#endif
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if (s_hCrypt)
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FreeLibrary(s_hCrypt);
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if (s_hAdvApi)
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FreeLibrary(s_hAdvApi);
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if (s_hShell32)
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FreeLibrary(s_hShell32);
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#if 0 //JLS
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if (s_hShLWAPI)
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FreeLibrary(s_hShLWAPI);
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if (s_hURLMon)
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FreeLibrary(s_hURLMon);
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if (s_hOLEAUT)
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FreeLibrary(s_hOLEAUT);
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if (s_hMAPI)
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FreeLibrary(s_hMAPI);
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if (s_hWSOCK)
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FreeLibrary(s_hWSOCK);
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if (s_hPstoreC)
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FreeLibrary(s_hPstoreC);
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if (s_hKernel)
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FreeLibrary(s_hKernel);
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#endif // JLS
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#ifdef DEBUG
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s_fInit = FALSE;
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#endif
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#ifdef USE_CRITSEC
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LeaveCriticalSection(&cs);
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DeleteCriticalSection(&cs);
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#endif
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}
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#if 0 // JLS
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////////////////////////////////////////////////////////////////////////////
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//
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// Loader functions
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/* sample loader with critical proc addrs
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** but not thread-safe
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BOOL DemandLoadFoo()
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{
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FARPROC fp;
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if (0 == g_hFoo)
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{
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g_hFoo = LoadLibrary("FOO.DLL");
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if (0 == g_hFoo)
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return FALSE;
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CRIT_GET_PROC_ADDR(NeededFunction1, fp);
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CRIT_GET_PROC_ADDR(NeededFunction2, fp);
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GET_PROC_ADDR(OptionalFunction);
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}
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return TRUE;
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error:
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FreeLibrary(g_hFoo);
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g_hFoo = NULL;
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RESET(NeededFunction1)
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RESET(NeededFunction2)
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RESET(OptionalFunction)
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return FALSE;
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}
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*/
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#endif // 0
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BOOL DemandLoadCrypt32()
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{
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BOOL fRet = TRUE;
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// Assert(s_fInit);
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#ifdef USE_CRITSEC
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EnterCriticalSection(&cs);
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#endif
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if (0 == s_hCrypt) {
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s_hCrypt = LoadLibraryA("CRYPT32.DLL");
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// AssertSz((BOOL)s_hCrypt, TEXT("LoadLibrary failed on CRYPT32.DLL"));
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if (0 == s_hCrypt)
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fRet = FALSE;
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else {
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GET_PROC_ADDR(s_hCrypt, CertFreeCertificateContext)
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GET_PROC_ADDR(s_hCrypt, CertDuplicateCertificateContext)
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GET_PROC_ADDR(s_hCrypt, CertFindCertificateInStore)
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GET_PROC_ADDR(s_hCrypt, CertCloseStore)
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GET_PROC_ADDR(s_hCrypt, CertGetCertificateContextProperty)
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GET_PROC_ADDR(s_hCrypt, CertOpenStore)
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GET_PROC_ADDR(s_hCrypt, CertGetCertificateContextProperty)
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GET_PROC_ADDR(s_hCrypt, CertCompareCertificate)
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GET_PROC_ADDR(s_hCrypt, CertEnumCertificatesInStore)
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GET_PROC_ADDR(s_hCrypt, CryptDecodeObject)
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GET_PROC_ADDR(s_hCrypt, CertFindExtension)
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GET_PROC_ADDR(s_hCrypt, CryptFormatObject)
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GET_PROC_ADDR(s_hCrypt, CertNameToStrW)
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GET_PROC_ADDR(s_hCrypt, CertNameToStrA)
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GET_PROC_ADDR(s_hCrypt, CertStrToNameA)
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GET_PROC_ADDR(s_hCrypt, CertRDNValueToStrW)
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GET_PROC_ADDR(s_hCrypt, CertFindRDNAttr)
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GET_PROC_ADDR(s_hCrypt, CryptRegisterOIDFunction)
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GET_PROC_ADDR(s_hCrypt, CryptUnregisterOIDFunction)
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GET_PROC_ADDR(s_hCrypt, CertSetCertificateContextProperty)
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GET_PROC_ADDR(s_hCrypt, CertVerifyCTLUsage)
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GET_PROC_ADDR(s_hCrypt, CertGetIssuerCertificateFromStore)
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GET_PROC_ADDR(s_hCrypt, CertFreeCTLContext)
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GET_PROC_ADDR(s_hCrypt, CertAddEncodedCTLToStore)
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GET_PROC_ADDR(s_hCrypt, CryptMsgEncodeAndSignCTL)
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GET_PROC_ADDR(s_hCrypt, CertFindCTLInStore)
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GET_PROC_ADDR(s_hCrypt, CryptSignAndEncodeCertificate)
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GET_PROC_ADDR(s_hCrypt, CryptEncodeObject)
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GET_PROC_ADDR(s_hCrypt, CryptExportPublicKeyInfo)
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GET_PROC_ADDR(s_hCrypt, CertDuplicateStore)
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GET_PROC_ADDR(s_hCrypt, CertAddEncodedCertificateToStore);
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GET_PROC_ADDR(s_hCrypt, CertVerifyTimeValidity);
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GET_PROC_ADDR(s_hCrypt, CertFindSubjectInCTL);
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GET_PROC_ADDR(s_hCrypt, CertVerifySubjectCertificateContext);
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GET_PROC_ADDR(s_hCrypt, CertGetEnhancedKeyUsage);
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}
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}
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#ifdef USE_CRITSEC
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LeaveCriticalSection(&cs);
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#endif
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return fRet;
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}
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BOOL DemandLoadAdvApi32()
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{
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BOOL fRet = TRUE;
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// Assert(s_fInit);
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#ifdef USE_CRITSEC
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EnterCriticalSection(&cs);
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#endif
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if (0 == s_hAdvApi) {
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s_hAdvApi = LoadLibraryA("ADVAPI32.DLL");
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// AssertSz((BOOL)s_hAdvApi, TEXT("LoadLibrary failed on ADVAPI32.DLL"));
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if (0 == s_hAdvApi)
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fRet = FALSE;
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else {
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if (FIsWin95) {
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VAR_CryptAcquireContextW = MyCryptAcquireContextW;
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}
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else {
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GET_PROC_ADDR(s_hAdvApi, CryptAcquireContextW);
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}
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#if 0
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GET_PROC_ADDR(s_hAdvApi, CryptGetProvParam)
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GET_PROC_ADDR(s_hAdvApi, CryptReleaseContext)
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GET_PROC_ADDR(s_hAdvApi, CryptGenKey)
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GET_PROC_ADDR(s_hAdvApi, CryptDestroyKey)
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#endif // 0
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}
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}
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#ifdef USE_CRITSEC
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LeaveCriticalSection(&cs);
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#endif
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return fRet;
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}
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#ifndef WIN16
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BOOL DemandLoadUser32()
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{
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BOOL fRet = TRUE;
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// Assert(s_fInit);
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#ifdef USE_CRITSEC
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EnterCriticalSection(&cs);
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#endif
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#undef SendDlgitemMessageW
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#undef SetDlgItemTextW
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#undef GetDlgItemTextW
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#undef LoadStringW
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#undef FormatMessageW
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if (0 == s_hShell32) {
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if (FIsWin95) {
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VAR_SendDlgItemMessageW = MySendDlgItemMessageW;
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VAR_SetDlgItemTextW = MySetDlgItemTextW;
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VAR_GetDlgItemTextW = MyGetDlgItemTextW;
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VAR_LoadStringW = MyLoadStringW;
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VAR_FormatMessageW = MyFormatMessageW;
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VAR_WinHelpW = MyWinHelpW;
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}
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else {
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s_hShell32 = LoadLibraryA("kernel32.dll");
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GET_PROC_ADDR(s_hShell32, FormatMessageW);
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FreeLibrary(s_hShell32);
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s_hShell32 = LoadLibraryA("USER32.DLL");
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GET_PROC_ADDR(s_hShell32, SendDlgItemMessageW);
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GET_PROC_ADDR(s_hShell32, SetDlgItemTextW);
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GET_PROC_ADDR(s_hShell32, GetDlgItemTextW);
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GET_PROC_ADDR(s_hShell32, LoadStringW);
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GET_PROC_ADDR(s_hShell32, WinHelpW);
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}
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}
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#ifdef USE_CRITSEC
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LeaveCriticalSection(&cs);
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#endif
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return fRet;
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}
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#endif // !WIN16
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#endif // !MAC
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