302 lines
9.2 KiB
C++
302 lines
9.2 KiB
C++
//+--------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1991 - 1996.
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//
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// File: docfile.c
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//
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// Contents: DocFile root functions (Stg* functions)
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//
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//---------------------------------------------------------------
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#include "exphead.cxx"
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#include "expst.hxx"
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#include "h/rexpdf.hxx"
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#include "h/docfile.hxx"
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#include "ascii.hxx"
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#include "logfile.hxx"
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#include "h/refilb.hxx"
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//+--------------------------------------------------------------
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//
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// Function: DfFromLB, private
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//
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// Synopsis: Starts a root Docfile on an ILockBytes
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//
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// Arguments: [plst] - LStream to start on
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// [df] - Permissions
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// [dwStartFlags] - Startup flags
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// [snbExclude] - Partial instantiation list
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// [ppdfExp] - DocFile return
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// [pcid] - Class ID return for opens
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//
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// Returns: Appropriate status code
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//
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// Modifies: [ppdfExp]
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// [pcid]
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//
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//---------------------------------------------------------------
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SCODE DfFromLB(ILockBytes *plst,
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DFLAGS df,
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DWORD dwStartFlags,
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SNBW snbExclude,
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CExposedDocFile **ppdfExp,
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CLSID *pcid)
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{
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SCODE sc, scConv;
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CRootExposedDocFile *prpdf;
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CDFBasis *pdfb=NULL;
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UNREFERENCED_PARM(pcid);
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olDebugOut((DEB_ITRACE, "In DfFromLB(%p, %X, %lX, %p, %p, %p)\n",
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plst, df, dwStartFlags, snbExclude, ppdfExp, pcid));
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// If we're not creating or converting, do a quick check
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// to make sure that the ILockBytes contains a storage
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if ((dwStartFlags & (RSF_CREATEFLAGS | RSF_CONVERT)) == 0)
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olHChk(StgIsStorageILockBytes(plst));
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// Make root
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olMem(pdfb = new CDFBasis);
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olMemTo(EH_pdfb, prpdf = new CRootExposedDocFile(pdfb));
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olChkTo(EH_ppcInit, scConv = prpdf->InitRoot(plst, dwStartFlags, df,
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snbExclude));
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*ppdfExp = prpdf;
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olDebugOut((DEB_ITRACE, "Out DfFromLB => %p\n", SAFE_DREF(ppdfExp)));
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return scConv;
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EH_ppcInit:
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prpdf->Release();
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EH_pdfb:
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delete pdfb;
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EH_Err:
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return sc;
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}
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//+--------------------------------------------------------------
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//
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// Function: StgCreateDocfile, public
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//
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// Synopsis: char version
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//
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//---------------------------------------------------------------
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STDAPI StgCreateDocfile(TCHAR const *pszName,
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DWORD grfMode,
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DWORD reserved,
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IStorage **ppstgOpen)
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{
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SCODE sc;
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CFileILB *pilb = NULL;
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int i;
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olDebugOut((DEB_ITRACE, "In StgCreateDocfile(%p, %lX, %lu, %p)\n",
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pszName, grfMode, reserved, ppstgOpen));
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olChk(ValidatePtrBuffer(ppstgOpen));
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*ppstgOpen = NULL;
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olChk(VerifyPerms(grfMode));
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if ((grfMode & STGM_RDWR) == STGM_READ ||
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(grfMode & (STGM_DELETEONRELEASE | STGM_CONVERT)) ==
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(STGM_DELETEONRELEASE | STGM_CONVERT))
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olErr(EH_Err, STG_E_INVALIDFLAG);
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pilb = new CFileILB(pszName, grfMode, FALSE);
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if (!pilb) olErr(EH_Err, STG_E_INSUFFICIENTMEMORY);
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olChk( pilb->Create(grfMode) );
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if ( (grfMode & (STGM_CREATE|STGM_CONVERT)) == STGM_FAILIFTHERE)
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grfMode |= STGM_CREATE; // no file exists, we will 'overwrite' the new
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// file
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grfMode &= (~STGM_DELETEONRELEASE); // remove the flag
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sc=GetScode(StgCreateDocfileOnILockBytes(pilb, grfMode, reserved,
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ppstgOpen));
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EH_Err:
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if (pilb)
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{
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if (FAILED(sc)) i=pilb->ReleaseOnError();
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else i=pilb->Release();
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olAssert(SUCCEEDED(sc) ? i==1 : i==0);
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}
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olDebugOut((DEB_ITRACE, "Out StgCreateDocfile: *ppstgOpen=%p ret=>%l\n",
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ppstgOpen?(*ppstgOpen):NULL, 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: StgCreateDocfileOnILockBytes, public
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//
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// Synopsis: Creates a root Docfile on an lstream
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//
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// Arguments: [plkbyt] - LStream
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// [grfMode] - Permissions
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// [reserved] - Unused
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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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//---------------------------------------------------------------
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STDAPI StgCreateDocfileOnILockBytes(ILockBytes *plkbyt,
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DWORD grfMode,
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DWORD reserved,
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IStorage **ppstgOpen)
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{
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CExposedDocFile *pdfExp;
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SCODE sc;
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DFLAGS df;
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olLog(("--------::In StgCreateDocFileOnILockBytes(%p, %lX, %lu, %p)\n",
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plkbyt, grfMode, reserved, ppstgOpen));
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olDebugOut((DEB_ITRACE, "In StgCreateDocfileOnILockBytes("
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"%p, %lX, %lu, %p)\n",
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plkbyt, grfMode, reserved, ppstgOpen));
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TRY
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{
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olChk(ValidatePtrBuffer(ppstgOpen));
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*ppstgOpen = NULL;
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olChk(ValidateInterface(plkbyt, IID_ILockBytes));
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if (reserved != 0)
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olErr(EH_Err, STG_E_INVALIDPARAMETER);
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if ((grfMode & (STGM_CREATE | STGM_CONVERT)) == 0)
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olErr(EH_Err, STG_E_FILEALREADYEXISTS);
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olChk(VerifyPerms(grfMode));
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if (grfMode & STGM_DELETEONRELEASE)
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olErr(EH_Err, STG_E_INVALIDFUNCTION);
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df = ModeToDFlags(grfMode);
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if ((grfMode & (STGM_TRANSACTED | STGM_CONVERT)) ==
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(STGM_TRANSACTED | STGM_CONVERT))
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df |= DF_INDEPENDENT;
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olChkTo(EH_Truncate,
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sc = DfFromLB(plkbyt, df,
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RSF_CREATE |
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((grfMode & STGM_CREATE) ? RSF_TRUNCATE : 0) |
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((grfMode & STGM_CONVERT) ? RSF_CONVERT : 0),
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NULL, &pdfExp, NULL));
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*ppstgOpen = pdfExp;
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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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olDebugOut((DEB_ITRACE, "Out StgCreateDocfileOnILockBytes => %p\n",
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ppstgOpen?(*ppstgOpen):NULL));
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EH_Err:
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olLog(("--------::Out StgCreateDocFileOnILockBytes(). *ppstgOpen == %p, ret == %lx\n",
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*ppstgOpen, sc));
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FreeLogFile();
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return ResultFromScode(sc);
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EH_Truncate:
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if ((grfMode & STGM_CREATE) && (grfMode & STGM_TRANSACTED) == 0)
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{
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ULARGE_INTEGER ulSize;
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ULISet32(ulSize, 0);
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olHChk(plkbyt->SetSize(ulSize));
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}
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goto EH_Err;
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}
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//+--------------------------------------------------------------
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//
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// Function: DfOpenStorageOnILockBytes, public
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//
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// Synopsis: Instantiates a root Docfile from an LStream,
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// converting if necessary
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//
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// Arguments: [plkbyt] - Source LStream
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// [pstgPriority] - For priority reopens
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// [grfMode] - Permissions
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// [snbExclude] - For priority reopens
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// [reserved]
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// [ppstgOpen] - Docfile return
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// [pcid] - Class ID 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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// [pcid]
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//
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//---------------------------------------------------------------
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HRESULT DfOpenStorageOnILockBytesW(ILockBytes *plkbyt,
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IStorage *pstgPriority,
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DWORD grfMode,
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SNBW snbExclude,
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DWORD reserved,
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IStorage **ppstgOpen,
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CLSID *pcid)
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{
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SCODE sc;
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CExposedDocFile *pdfExp;
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olLog(("--------::In DfOpenStorageOnILockBytes("
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"%p, %p, %lX, %p, %lu, %p, %p)\n",
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plkbyt, pstgPriority, grfMode, snbExclude, reserved, ppstgOpen,
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pcid));
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olDebugOut((DEB_ITRACE, "In DfOpenStorageOnILockBytes("
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"%p, %p, %lX, %p, %lu, %p, %p)\n", plkbyt, pstgPriority,
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grfMode, snbExclude, reserved, ppstgOpen, pcid));
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TRY
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{
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#ifdef _UNICODE // do checking if there is an ANSI layer
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olChk(ValidatePtrBuffer(ppstgOpen));
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*ppstgOpen = NULL;
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if (snbExclude) olChk(ValidateSNBW(snbExclude));
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#endif /!UNICODE
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olChk(ValidateInterface(plkbyt, IID_ILockBytes));
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if (pstgPriority)
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olChk(ValidateInterface(pstgPriority, IID_IStorage));
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olChk(VerifyPerms(grfMode));
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if (grfMode & STGM_DELETEONRELEASE)
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olErr(EH_Err, STG_E_INVALIDFUNCTION);
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if (snbExclude)
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{
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if ((grfMode & STGM_RDWR) != STGM_READWRITE)
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olErr(EH_Err, STG_E_ACCESSDENIED);
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}
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if (reserved != 0)
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olErr(EH_Err, STG_E_INVALIDPARAMETER);
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if (FAILED(DllIsMultiStream(plkbyt)))
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olErr(EH_Err, STG_E_FILEALREADYEXISTS); //file is not storage obj
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if (pstgPriority)
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olChk(pstgPriority->Release());
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olChk(DfFromLB(plkbyt, ModeToDFlags(grfMode), RSF_OPEN, snbExclude,
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&pdfExp, pcid));
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*ppstgOpen = pdfExp;
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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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olDebugOut((DEB_ITRACE, "Out DfOpenStorageOnILockBytes => %p\n",
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ppstgOpen?(*ppstgOpen):NULL));
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EH_Err:
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olLog(("--------::Out DfOpenStorageOnILockBytes(). *ppstgOpen == %p"
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", ret == %lx\n", *ppstgOpen, sc));
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FreeLogFile();
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return sc;
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}
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