692 lines
18 KiB
C++
692 lines
18 KiB
C++
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//+--------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1992.
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//
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// File: storage.cxx
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//
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// Contents: Contains generic storage APIs
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//
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// History: 05-Oct-92 DrewB Created
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//
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//---------------------------------------------------------------
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#include <exphead.cxx>
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#pragma hdrstop
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#include <dfentry.hxx>
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#include <storagep.h>
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#include <logfile.hxx>
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#include <df32.hxx>
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#ifdef COORD
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#include <oledb.h>
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#endif //COORD
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#include <trace.hxx>
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#include <ole2sp.h>
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#include <ole2com.h>
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//+--------------------------------------------------------------
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//
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// Function: StgOpenStorage, public
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//
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// Synopsis: Instantiates a root storage from a file
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// by binding to the appropriate implementation
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// and starting things up
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//
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// Arguments: [pwcsName] - Name
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// [pstgPriority] - Priority mode reopen IStorage
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// [grfMode] - Permissions
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// [snbExclude] - Exclusions for priority reopen
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// [reserved]
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// [ppstgOpen] - Docfile return
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//
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// Returns: Appropriate status code
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//
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// Modifies: [ppstgOpen]
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//
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// History: 05-Oct-92 DrewB Created
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//
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//---------------------------------------------------------------
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STDAPI StgOpenStorage(OLECHAR const *pwcsName,
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IStorage *pstgPriority,
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DWORD grfMode,
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SNB snbExclude,
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LPSTGSECURITY reserved,
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IStorage **ppstgOpen)
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{
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return DfOpenDocfile(pwcsName, NULL, pstgPriority, grfMode,
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snbExclude, reserved, NULL, 0, ppstgOpen);
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}
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//+---------------------------------------------------------------------------
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//
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// Function: CheckSignature, private
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//
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// Synopsis: Checks the given memory against known signatures
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//
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// Arguments: [pb] - Pointer to memory to check
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//
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// Returns: S_OK - Current signature
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// S_FALSE - Beta 2 signature, but still successful
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// Appropriate status code
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//
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// History: 23-Jul-93 DrewB Created from header.cxx code
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//
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//----------------------------------------------------------------------------
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//Identifier for first bytes of Beta 1 Docfiles
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const BYTE SIGSTG_B1[] = {0xd0, 0xcf, 0x11, 0xe0, 0x0e, 0x11, 0xfc, 0x0d};
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const USHORT CBSIGSTG_B1 = sizeof(SIGSTG_B1);
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//Identifier for first bytes of Beta 2 Docfiles
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const BYTE SIGSTG_B2[] = {0x0e, 0x11, 0xfc, 0x0d, 0xd0, 0xcf, 0x11, 0xe0};
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const BYTE CBSIGSTG_B2 = sizeof(SIGSTG_B2);
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SCODE CheckSignature(BYTE *pb)
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{
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SCODE sc;
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olDebugOut((DEB_ITRACE, "In CheckSignature(%p)\n", pb));
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// Check for ship Docfile signature first
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if (memcmp(pb, SIGSTG, CBSIGSTG) == 0)
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sc = S_OK;
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// Check for Beta 2 Docfile signature
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else if (memcmp(pb, SIGSTG_B2, CBSIGSTG_B2) == 0)
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sc = S_FALSE;
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// Check for Beta 1 Docfile signature
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else if (memcmp(pb, SIGSTG_B1, CBSIGSTG_B1) == 0)
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sc = STG_E_OLDFORMAT;
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else
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sc = STG_E_INVALIDHEADER;
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olDebugOut((DEB_ITRACE, "Out CheckSignature => %lX\n", sc));
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return sc;
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}
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//+--------------------------------------------------------------
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//
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// Function: StgIsStorageFileHandle, private
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//
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// Synopsis: Determines whether a handle is open on a storage file.
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// Spun off from StgIsStorageFile. Internaly we use this
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//
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// Arguments: [hf] - Open File Handle (caller must seek it to 0)
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//
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// Returns: S_OK, S_FALSE or error codes
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//
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// History: 07-May-98 MikeHill Created
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// 05-June-98 BChapman Return Errors not just S_FALSE.
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// Add optional Overlapped pointer.
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//
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//---------------------------------------------------------------
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STDAPI StgIsStorageFileHandle( HANDLE hf, LPOVERLAPPED povlp )
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{
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DWORD cbRead;
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BYTE stgHeader[sizeof(SStorageFile)];
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SCODE sc;
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LONG status;
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OVERLAPPED ovlp;
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FillMemory( stgHeader, sizeof(SStorageFile), 0xDE );
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if (povlp == NULL)
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{
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ovlp.Offset = 0;
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ovlp.OffsetHigh = 0;
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ovlp.hEvent = NULL;
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}
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if( !ReadFile( hf,
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&stgHeader,
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sizeof( stgHeader ),
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&cbRead,
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(povlp == NULL) ? &ovlp : povlp ) )
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{
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if( NULL != povlp )
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{
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status = GetLastError();
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if( ERROR_IO_PENDING == status)
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{
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status = ERROR_SUCCESS;
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if( !GetOverlappedResult( hf, povlp, &cbRead, TRUE ) )
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status = GetLastError();
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}
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if(ERROR_SUCCESS != status && ERROR_HANDLE_EOF != status)
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olChk( HRESULT_FROM_WIN32( status ) );
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}
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else
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olErr( EH_Err, S_FALSE );
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}
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// Don't worry about short reads. If the read is short then
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// the signature checks will fail.
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sc = CheckSignature( ((SStorageFile*)stgHeader)->abSig );
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if(S_OK == sc)
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goto EH_Err; // Done, return "Yes"
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olChk(sc);
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// It didn't error. sc != S_OK then it
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// Must be S_FALSE.
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olAssert(S_FALSE == sc);
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EH_Err:
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if( (STG_E_OLDFORMAT == sc) || (STG_E_INVALIDHEADER == sc) )
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sc = S_FALSE;
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return sc;
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}
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//+--------------------------------------------------------------
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//
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// Function: StgIsStorageFile, public
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//
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// Synopsis: Determines whether the named file is a storage or not
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//
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// Arguments: [pwcsName] - Filename
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//
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// Returns: S_OK, S_FALSE or error codes
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//
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// History: 05-Oct-92 DrewB Created
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//
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//---------------------------------------------------------------
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STDAPI StgIsStorageFile(OLECHAR const *pwcsName)
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{
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HANDLE hf;
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SCODE sc;
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olLog(("--------::In StgIsStorageFile(" OLEFMT ")\n", pwcsName));
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TRY
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{
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#ifndef OLEWIDECHAR
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if (FAILED(sc = ValidateNameA(pwcsName, _MAX_PATH)))
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#else
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if (FAILED(sc = ValidateNameW(pwcsName, _MAX_PATH)))
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#endif
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return ResultFromScode(sc);
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#if !defined(UNICODE)
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// Chicago - call ANSI CreateFile
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char szName[_MAX_PATH + 1];
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if (!WideCharToMultiByte(
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AreFileApisANSI() ? CP_ACP : CP_OEMCP,
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0,
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pwcsName,
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-1,
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szName,
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_MAX_PATH + 1,
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NULL,
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NULL))
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return ResultFromScode(STG_E_INVALIDNAME);
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hf = CreateFileA (
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szName,
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GENERIC_READ,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL
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);
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#else
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hf = CreateFile (
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pwcsName,
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GENERIC_READ,
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FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL
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);
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#endif // !defined(UNICODE)
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if (hf == INVALID_HANDLE_VALUE)
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return ResultFromScode(STG_SCODE(GetLastError()));
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sc = StgIsStorageFileHandle( hf, NULL );
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CloseHandle (hf);
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}
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CATCH(CException, e)
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{
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sc = e.GetErrorCode();
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}
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END_CATCH
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olLog(("--------::Out StgIsStorageFile(). ret == %lx\n", sc));
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return(ResultFromScode(sc));
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}
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//+--------------------------------------------------------------
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//
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// Function: StgIsStorageILockBytes, public
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//
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// Synopsis: Determines whether the ILockBytes is a storage or not
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//
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// Arguments: [plkbyt] - The ILockBytes
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//
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// Returns: S_OK, S_FALSE or error codes
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//
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// History: 05-Oct-92 DrewB Created
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//
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//---------------------------------------------------------------
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STDAPI StgIsStorageILockBytes(ILockBytes *plkbyt)
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{
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OLETRACEIN((API_StgIsStorageILockBytes, PARAMFMT("plkbyt= %p"), plkbyt));
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HRESULT hr;
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SCODE sc;
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SStorageFile stgfile;
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ULONG cbRead;
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ULARGE_INTEGER ulOffset;
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TRY
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{
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if (FAILED(sc = ValidateInterface(plkbyt, IID_ILockBytes)))
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{
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hr = ResultFromScode(sc);
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goto errRtn;
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}
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ULISet32(ulOffset, 0);
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hr = plkbyt->ReadAt(ulOffset, &stgfile, sizeof(stgfile), &cbRead);
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if (FAILED(GetScode(hr)))
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{
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goto errRtn;
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}
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}
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CATCH(CException, e)
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{
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hr = ResultFromScode(e.GetErrorCode());
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goto errRtn;
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}
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END_CATCH
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if (cbRead == sizeof(stgfile))
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{
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if ((memcmp((void *)stgfile.abSig, SIGSTG, CBSIGSTG) == 0) ||
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(memcmp((void *)stgfile.abSig, SIGSTG_B2, CBSIGSTG_B2) == 0))
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{
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hr = ResultFromScode(S_OK);
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goto errRtn;
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}
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}
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hr = ResultFromScode(S_FALSE);
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errRtn:
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OLETRACEOUT((API_StgIsStorageILockBytes, hr));
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return hr;
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}
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//+--------------------------------------------------------------
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//
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// Function: StgSetTimes
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//
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// Synopsis: Sets file time stamps
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//
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// Arguments: [lpszName] - Name
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// [pctime] - create time
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// [patime] - access time
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// [pmtime] - modify time
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//
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// Returns: Appropriate status code
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//
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// History: 05-Oct-92 AlexT Created
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//
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//---------------------------------------------------------------
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STDAPI StgSetTimes(OLECHAR const *lpszName,
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FILETIME const *pctime,
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FILETIME const *patime,
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FILETIME const *pmtime)
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{
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SCODE sc;
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HANDLE hFile;
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TRY
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{
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#ifndef OLEWIDECHAR
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sc = ValidateNameA(lpszName, _MAX_PATH);
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#else
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sc = ValidateNameW(lpszName, _MAX_PATH);
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#endif
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if (SUCCEEDED(sc))
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{
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#if !defined(UNICODE) && defined(OLEWIDECHAR)
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//Chicago - call ANSI CreateFile
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char szName[_MAX_PATH];
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if (!WideCharToMultiByte(
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AreFileApisANSI() ? CP_ACP : CP_OEMCP,
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0,
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lpszName,
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-1,
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szName,
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_MAX_PATH,
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NULL,
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NULL))
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return ResultFromScode(STG_E_INVALIDNAME);
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hFile = CreateFileA(szName, GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
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NULL);
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#else
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hFile = CreateFile(lpszName, GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL);
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#endif
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if (hFile == INVALID_HANDLE_VALUE)
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sc = LAST_STG_SCODE;
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else
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{
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if (!SetFileTime(hFile, (FILETIME *)pctime, (FILETIME *)patime,
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(FILETIME *)pmtime))
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sc = LAST_STG_SCODE;
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CloseHandle(hFile);
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}
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}
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}
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CATCH(CException, e)
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{
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sc = e.GetErrorCode();
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}
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END_CATCH
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return ResultFromScode(sc);
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}
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#if DBG==1
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extern "C" unsigned long filestInfoLevel; // File I/O layer of Docfile
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extern "C" unsigned long nffInfoLevel; // NTFS Flat File
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void
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StgDebugInit()
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{
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GetInfoLevel("filest", &filestInfoLevel, "0x0003");
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GetInfoLevel( "nff", &nffInfoLevel, "0x0003");
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}
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#endif // DBG==1
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//+---------------------------------------------------------------------------
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//
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// Function: NormalDllGetClassObject, public
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//
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// Synopsis: Registers any normal Inproc Dll server.
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//
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// Arguments: [refCLSID] Class ID of object to register
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// [pwszDescription] Description to put in the CLSID Key
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// [pwszDllName] Dll where the object's code lives
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// [pwszThreadingModel] Threading Model (i.e. L"both")
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//
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// Returns: Appropriate status code
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//
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// History: 15-jan-98 BChapman Created
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//
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//----------------------------------------------------------------------------
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#define STRBUFSZ 64
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STDAPI NormalDllRegisterServer(
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REFCLSID refCLSID,
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WCHAR * pwszDescription,
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WCHAR * pwszDllName,
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WCHAR * pwszThreadingModel)
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{
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HKEY hkeyCLSID=NULL;
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HKEY hkeyInproc32=NULL;
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DWORD dwDisp=0;
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LONG rc;
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HRESULT sc=S_OK;
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WCHAR wszCLSID[STRBUFSZ];
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WCHAR wszCLSKey[STRBUFSZ];
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//--------------------------------------
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// Construct and Open the Class ID key.
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//
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||
|
if(0 == StringFromGUID2(refCLSID, wszCLSID, STRBUFSZ))
|
||
|
olErr( EH_Err, E_UNEXPECTED );
|
||
|
|
||
|
wcscpy(wszCLSKey, L"CLSID\\");
|
||
|
wcscat(wszCLSKey, wszCLSID);
|
||
|
|
||
|
rc = RegCreateKeyEx(HKEY_CLASSES_ROOT, wszCLSKey,
|
||
|
0, _T(""), REG_OPTION_NON_VOLATILE,
|
||
|
KEY_WRITE, NULL,
|
||
|
&hkeyCLSID, &dwDisp);
|
||
|
if(ERROR_SUCCESS != rc)
|
||
|
olErr( EH_Err, REGDB_E_WRITEREGDB );
|
||
|
|
||
|
//-----------------------------------------------------
|
||
|
// Set the description string on the Class ID Key
|
||
|
//
|
||
|
rc = RegSetValueEx(hkeyCLSID, _T(""), 0,
|
||
|
REG_SZ, (BYTE*) pwszDescription,
|
||
|
sizeof(WCHAR)*(1+wcslen(pwszDescription)) );
|
||
|
if(ERROR_SUCCESS != rc)
|
||
|
olErr( EH_Err, REGDB_E_WRITEREGDB );
|
||
|
|
||
|
//---------------------------
|
||
|
// Open the Inproc32 Sub-key.
|
||
|
//
|
||
|
rc = RegCreateKeyEx(hkeyCLSID, _T("InprocServer32"),
|
||
|
0, _T(""), REG_OPTION_NON_VOLATILE,
|
||
|
KEY_WRITE, NULL,
|
||
|
&hkeyInproc32, &dwDisp);
|
||
|
if(ERROR_SUCCESS != rc)
|
||
|
olErr( EH_Err, REGDB_E_WRITEREGDB );
|
||
|
|
||
|
//-----------------------------------------
|
||
|
// Set the DLL name on the Inproc32 Sub-Key
|
||
|
//
|
||
|
rc = RegSetValueEx(hkeyInproc32, _T(""), 0,
|
||
|
REG_SZ, (BYTE*) pwszDllName,
|
||
|
sizeof(WCHAR)*(1+wcslen(pwszDllName)));
|
||
|
if(ERROR_SUCCESS != rc)
|
||
|
olErr( EH_Err, REGDB_E_WRITEREGDB );
|
||
|
|
||
|
//------------------------
|
||
|
// Set the Threading Model
|
||
|
//
|
||
|
rc = RegSetValueEx(hkeyInproc32, _T("ThreadingModel"), 0,
|
||
|
REG_SZ, (BYTE*) pwszThreadingModel,
|
||
|
sizeof(WCHAR)*(1+wcslen(pwszThreadingModel)));
|
||
|
if(ERROR_SUCCESS != rc)
|
||
|
olErr( EH_Err, REGDB_E_WRITEREGDB );
|
||
|
|
||
|
EH_Err:
|
||
|
if(NULL != hkeyCLSID)
|
||
|
RegCloseKey(hkeyCLSID);
|
||
|
if(NULL != hkeyInproc32)
|
||
|
RegCloseKey(hkeyInproc32);
|
||
|
|
||
|
return sc;
|
||
|
}
|
||
|
|
||
|
|
||
|
//+---------------------------------------------------------------------------
|
||
|
//
|
||
|
// Function: AddCLSIDToMultiSz, public
|
||
|
//
|
||
|
// Synopsis: Add the string form of a Class ID to a MultiSZ registry value.
|
||
|
//
|
||
|
// Arguments: [refCLSID] Class ID to register
|
||
|
// [hkeyStart] An open registry key.
|
||
|
// [wcszKey] Path to the key reletive to hkeyStart.
|
||
|
// [wcszValue] Name of the Value under wcszKey.
|
||
|
//
|
||
|
// Returns: Appropriate status code
|
||
|
//
|
||
|
// History: 18-jan-98 BChapman Created
|
||
|
//
|
||
|
//----------------------------------------------------------------------------
|
||
|
|
||
|
STDAPI AddCLSIDToMultiSz(
|
||
|
REFCLSID refCLSID,
|
||
|
HKEY hkeyStart,
|
||
|
WCHAR* wcszKey,
|
||
|
WCHAR* wcszValue)
|
||
|
{
|
||
|
WCHAR wszCLSID[STRBUFSZ];
|
||
|
int ccCLSIDstr;
|
||
|
LONG rc;
|
||
|
HRESULT sc=S_OK;
|
||
|
HKEY hkeyKey=NULL;
|
||
|
|
||
|
BYTE* p_bytes=NULL;
|
||
|
WCHAR* p_wsz=NULL;
|
||
|
DWORD cbData, cbDataNew;
|
||
|
DWORD dwType;
|
||
|
|
||
|
ccCLSIDstr = StringFromGUID2( refCLSID, wszCLSID, STRBUFSZ );
|
||
|
if( 0 == ccCLSIDstr )
|
||
|
olErr( EH_Err, E_UNEXPECTED );
|
||
|
ccCLSIDstr += 1; // +1 for the NULL
|
||
|
|
||
|
// Open the Key
|
||
|
//
|
||
|
rc = RegOpenKeyEx(hkeyStart,
|
||
|
wcszKey,
|
||
|
0,
|
||
|
KEY_QUERY_VALUE | KEY_SET_VALUE,
|
||
|
&hkeyKey);
|
||
|
if( ERROR_SUCCESS != rc )
|
||
|
olErr( EH_Err, REGDB_E_KEYMISSING );
|
||
|
|
||
|
// Size The Buffer,
|
||
|
// Allocate the buffer,
|
||
|
// And Read the data.
|
||
|
//
|
||
|
cbData = 0;
|
||
|
cbDataNew = 0;
|
||
|
rc = RegQueryValueEx( hkeyKey,
|
||
|
wcszValue,
|
||
|
0,
|
||
|
&dwType,
|
||
|
NULL,
|
||
|
&cbData );
|
||
|
if( ERROR_SUCCESS != rc )
|
||
|
{
|
||
|
//
|
||
|
// The value may not exist. In that case we make a new entry.
|
||
|
// Rather than depend on an exact error code, lets take the "new"
|
||
|
// path on all failures. We will hit real problems in the "write"
|
||
|
// phase
|
||
|
cbData = 1*sizeof(WCHAR); // +1 for the terminating second Null.
|
||
|
cbDataNew = (ccCLSIDstr + 1) * sizeof(WCHAR);
|
||
|
olMem( p_bytes = new BYTE[ cbDataNew ] );
|
||
|
memset( p_bytes, 0, cbDataNew );
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if( REG_MULTI_SZ != dwType )
|
||
|
olErr( EH_Err, REGDB_E_INVALIDVALUE );
|
||
|
|
||
|
// cbData is in units of bytes
|
||
|
//
|
||
|
cbDataNew = cbData + ( ccCLSIDstr * sizeof(WCHAR) );
|
||
|
olMem( p_bytes = new BYTE[ cbDataNew ] );
|
||
|
memset( p_bytes, 0, cbDataNew );
|
||
|
rc = RegQueryValueEx( hkeyKey,
|
||
|
wcszValue,
|
||
|
0,
|
||
|
&dwType,
|
||
|
p_bytes,
|
||
|
&cbData );
|
||
|
if( ERROR_SUCCESS != rc )
|
||
|
olErr( EH_Err, LAST_SCODE );
|
||
|
}
|
||
|
|
||
|
// Check if the Class Id is already present
|
||
|
//
|
||
|
p_wsz = (WCHAR*)p_bytes;
|
||
|
while( L'\0' != *p_wsz)
|
||
|
{
|
||
|
if( 0 == wcscmp( p_wsz, wszCLSID ) )
|
||
|
break;
|
||
|
|
||
|
// Advance to the end of the String.
|
||
|
while( L'\0' != *p_wsz)
|
||
|
++p_wsz;
|
||
|
|
||
|
// Advance to the start of the next String.
|
||
|
// Or the terminating second null.
|
||
|
++p_wsz;
|
||
|
}
|
||
|
|
||
|
|
||
|
// If the Class Id is not already present,
|
||
|
// Add the Class Id to the list
|
||
|
// And write it into the Registry
|
||
|
//
|
||
|
if( L'\0' == *p_wsz )
|
||
|
{
|
||
|
wcscpy( p_wsz, wszCLSID );
|
||
|
p_wsz[ ccCLSIDstr ] = L'\0'; // Add the Second Null.
|
||
|
|
||
|
rc = RegSetValueEx( hkeyKey,
|
||
|
wcszValue,
|
||
|
0,
|
||
|
REG_MULTI_SZ,
|
||
|
p_bytes,
|
||
|
cbDataNew );
|
||
|
if( ERROR_SUCCESS != rc )
|
||
|
olErr( EH_Err, REGDB_E_WRITEREGDB );
|
||
|
}
|
||
|
|
||
|
EH_Err:
|
||
|
if( NULL != hkeyKey )
|
||
|
RegCloseKey( hkeyKey );
|
||
|
|
||
|
if( NULL != p_bytes )
|
||
|
delete[] p_bytes;
|
||
|
|
||
|
return sc;
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
//+---------------------------------------------------------------------------
|
||
|
//
|
||
|
// Function: DllRegisterServer, public
|
||
|
//
|
||
|
// Returns: Appropriate status code
|
||
|
//
|
||
|
// History: 15-jan-98 BChpaman Created
|
||
|
//
|
||
|
//----------------------------------------------------------------------------
|
||
|
|
||
|
STDAPI Storage32DllRegisterServer(void)
|
||
|
{
|
||
|
HRESULT hrAccum=S_OK;
|
||
|
|
||
|
return hrAccum;
|
||
|
}
|