Bug Summary

File:home/maarten/src/libreoffice/core/include/tools/ref.hxx
Warning:line 95, column 31
Use of memory after it is freed

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name excel.cxx -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -mframe-pointer=all -fmath-errno -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/lib64/clang/11.0.0 -D BOOST_ERROR_CODE_HEADER_ONLY -D BOOST_SYSTEM_NO_DEPRECATED -D CPPU_ENV=gcc3 -D LINUX -D OSL_DEBUG_LEVEL=1 -D SAL_LOG_INFO -D SAL_LOG_WARN -D UNIX -D UNX -D X86_64 -D _PTHREADS -D _REENTRANT -D BOOST_ALL_NO_LIB -D BOOST_ALL_NO_LIB -D BOOST_ALL_NO_LIB -D SYSTEM_ZLIB -D EXCEPTIONS_ON -D LIBO_INTERNAL_ONLY -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/liborcus/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/liborcus/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/mdds/include -I /home/maarten/src/libreoffice/core/external/clew/source/include -I /home/maarten/src/libreoffice/core/external/boost/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/boost -I /home/maarten/src/libreoffice/core/sc/source/core/inc -I /home/maarten/src/libreoffice/core/sc/source/filter/inc -I /home/maarten/src/libreoffice/core/sc/source/ui/inc -I /home/maarten/src/libreoffice/core/sc/inc -I /home/maarten/src/libreoffice/core/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include/linux -I /home/maarten/src/libreoffice/core/config_host -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/udkapi/normal -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/offapi/normal -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/oovbaapi/normal -I /home/maarten/src/libreoffice/core/workdir/CustomTarget/oox/generated -I /home/maarten/src/libreoffice/core/workdir/CustomTarget/officecfg/registry -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10 -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/x86_64-redhat-linux -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/backward -internal-isystem /usr/local/include -internal-isystem /usr/lib64/clang/11.0.0/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O0 -Wno-missing-braces -std=c++17 -fdeprecated-macro -fdebug-compilation-dir /home/maarten/src/libreoffice/core -ferror-limit 19 -fvisibility hidden -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -debug-info-kind=constructor -analyzer-output=html -faddrsig -o /home/maarten/tmp/wis/scan-build-libreoffice/output/report/2020-10-07-141433-9725-1 -x c++ /home/maarten/src/libreoffice/core/sc/source/filter/excel/excel.cxx

/home/maarten/src/libreoffice/core/sc/source/filter/excel/excel.cxx

→
1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#include <sfx2/docfile.hxx>
21#include <sfx2/frame.hxx>
22#include <sfx2/sfxsids.hrc>
23#include <sot/storage.hxx>
24#include <sot/exchange.hxx>
25#include <filter/msfilter/classids.hxx>
26#include <tools/globname.hxx>
27#include <com/sun/star/packages/XPackageEncryption.hpp>
28#include <com/sun/star/ucb/ContentCreationException.hpp>
29#include <com/sun/star/uno/XComponentContext.hpp>
30#include <unotools/streamwrap.hxx>
31#include <unotools/defaultencoding.hxx>
32#include <unotools/wincodepage.hxx>
33#include <osl/diagnose.h>
34#include <filter.hxx>
35#include <document.hxx>
36#include <xistream.hxx>
37#include <xltools.hxx>
38#include <docoptio.hxx>
39#include <comphelper/sequenceashashmap.hxx>
40#include <comphelper/processfactory.hxx>
41
42#include <docsh.hxx>
43#include <scerrors.hxx>
44#include <imp_op.hxx>
45#include <excimp8.hxx>
46#include <exp_op.hxx>
47#include <scdll.hxx>
48
49#include <memory>
50
51using namespace css;
52
53static void lcl_getListOfStreams(SotStorage * pStorage, comphelper::SequenceAsHashMap& aStreamsData, const OUString& sPrefix)
54{
55 SvStorageInfoList aElements;
56 pStorage->FillInfoList(&aElements);
57 for (const auto & aElement : aElements)
58 {
59 OUString sStreamFullName = sPrefix.getLength() ? sPrefix + "/" + aElement.GetName() : aElement.GetName();
60 if (aElement.IsStorage())
61 {
62 tools::SvRef<SotStorage> xSubStorage = pStorage->OpenSotStorage(aElement.GetName(), StreamMode::STD_READ | StreamMode::SHARE_DENYALL);
63 lcl_getListOfStreams(xSubStorage.get(), aStreamsData, sStreamFullName);
64 }
65 else
66 {
67 // Read stream
68 tools::SvRef<SotStorageStream> rStream = pStorage->OpenSotStream(aElement.GetName(), StreamMode::READ | StreamMode::SHARE_DENYALL);
69 if (rStream.is())
70 {
71 sal_Int32 nStreamSize = rStream->GetSize();
72 uno::Sequence< sal_Int8 > oData;
73 oData.realloc(nStreamSize);
74 sal_Int32 nReadBytes = rStream->ReadBytes(oData.getArray(), nStreamSize);
75 if (nStreamSize == nReadBytes)
76 aStreamsData[sStreamFullName] <<= oData;
77 }
78 }
79 }
80}
81
82static tools::SvRef<SotStorage> lcl_DRMDecrypt(const SfxMedium& rMedium, const tools::SvRef<SotStorage>& rStorage, std::shared_ptr<SvStream>& rNewStorageStrm)
83{
84 tools::SvRef<SotStorage> aNewStorage;
85
86 // We have DRM encrypted storage. We should try to decrypt it first, if we can
87 uno::Sequence< uno::Any > aArguments;
88 uno::Reference<uno::XComponentContext> xComponentContext(comphelper::getProcessComponentContext());
89 uno::Reference< packages::XPackageEncryption > xPackageEncryption(
90 xComponentContext->getServiceManager()->createInstanceWithArgumentsAndContext(
91 "com.sun.star.comp.oox.crypto.DRMDataSpace", aArguments, xComponentContext), uno::UNO_QUERY);
92
93 if (!xPackageEncryption.is())
94 {
95 // We do not know how to decrypt this
96 return aNewStorage;
97 }
98
99 comphelper::SequenceAsHashMap aStreamsData;
100 lcl_getListOfStreams(rStorage.get(), aStreamsData, "");
101
102 try {
103 uno::Sequence<beans::NamedValue> aStreams = aStreamsData.getAsConstNamedValueList();
104 if (!xPackageEncryption->readEncryptionInfo(aStreams))
105 {
106 // We failed with decryption
107 return aNewStorage;
108 }
109
110 tools::SvRef<SotStorageStream> rContentStream = rStorage->OpenSotStream("\011DRMContent", StreamMode::READ | StreamMode::SHARE_DENYALL);
111 if (!rContentStream.is())
112 {
113 return aNewStorage;
114 }
115
116 rNewStorageStrm = std::make_shared<SvMemoryStream>();
117
118 uno::Reference<io::XInputStream > xInputStream(new utl::OSeekableInputStreamWrapper(rContentStream.get(), false));
119 uno::Reference<io::XOutputStream > xDecryptedStream(new utl::OSeekableOutputStreamWrapper(*rNewStorageStrm));
120
121 if (!xPackageEncryption->decrypt(xInputStream, xDecryptedStream))
122 {
123 // We failed with decryption
124 return aNewStorage;
125 }
126
127 rNewStorageStrm->Seek(0);
128
129 // Further reading is done from new document
130 aNewStorage = new SotStorage(*rNewStorageStrm);
131
132 // Set the media descriptor data
133 uno::Sequence<beans::NamedValue> aEncryptionData = xPackageEncryption->createEncryptionData("");
134 rMedium.GetItemSet()->Put(SfxUnoAnyItem(SID_ENCRYPTIONDATA(5000 + 1722), uno::makeAny(aEncryptionData)));
135 }
136 catch (const std::exception&)
137 {
138 return aNewStorage;
139 }
140
141 return aNewStorage;
142}
143
144ErrCode ScFormatFilterPluginImpl::ScImportExcel( SfxMedium& rMedium, ScDocument* pDocument, const EXCIMPFORMAT eFormat )
145{
146 // check the passed Calc document
147 OSL_ENSURE( pDocument, "::ScImportExcel - no document" )do { if (true && (!(pDocument))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/sc/source/filter/excel/excel.cxx"
":" "147" ": "), "%s", "::ScImportExcel - no document"); } }
while (false);
148 if( !pDocument ) return SCERR_IMPORT_INTERNALErrCode( ErrCodeArea::Sc, ErrCodeClass::Read, 11 ); // should not happen
149
150 /* Import all BIFF versions regardless on eFormat, needed for import of
151 external cells (file type detection returns Excel4.0). */
152 if( (eFormat != EIF_AUTO) && (eFormat != EIF_BIFF_LE4) && (eFormat != EIF_BIFF5) && (eFormat != EIF_BIFF8) )
153 {
154 OSL_FAIL( "::ScImportExcel - wrong file format specification" )do { if (true && (((sal_Bool)1))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/sc/source/filter/excel/excel.cxx"
":" "154" ": "), "%s", "::ScImportExcel - wrong file format specification"
); } } while (false);
155 return SCERR_IMPORT_FORMATErrCode( ErrCodeArea::Sc, ErrCodeClass::Read, 6 );
156 }
157
158 // check the input stream from medium
159 SvStream* pMedStrm = rMedium.GetInStream();
160 OSL_ENSURE( pMedStrm, "::ScImportExcel - medium without input stream" )do { if (true && (!(pMedStrm))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/sc/source/filter/excel/excel.cxx"
":" "160" ": "), "%s", "::ScImportExcel - medium without input stream"
); } } while (false);
161 if( !pMedStrm ) return SCERR_IMPORT_OPENErrCode( ErrCodeArea::Sc, ErrCodeClass::Read, 2 ); // should not happen
162
163 SvStream* pBookStrm = nullptr; // The "Book"/"Workbook" stream containing main data.
164 XclBiff eBiff = EXC_BIFF_UNKNOWN; // The BIFF version of the main stream.
165
166 // try to open an OLE storage
167 tools::SvRef<SotStorage> xRootStrg;
168 tools::SvRef<SotStorageStream> xStrgStrm;
169 std::shared_ptr<SvStream> aNewStorageStrm;
170 if( SotStorage::IsStorageFile( pMedStrm ) )
171 {
172 xRootStrg = new SotStorage( pMedStrm, false );
173 if( xRootStrg->GetError() )
174 xRootStrg = nullptr;
175 }
176
177 // try to open "Book" or "Workbook" stream in OLE storage
178 if( xRootStrg.is() )
179 {
180 // Check if there is DRM encryption in storage
181 tools::SvRef<SotStorageStream> xDRMStrm = ScfTools::OpenStorageStreamRead(xRootStrg, "\011DRMContent");
182 if (xDRMStrm.is())
183 {
184 xRootStrg = lcl_DRMDecrypt(rMedium, xRootStrg, aNewStorageStrm);
185 }
186
187 // try to open the "Book" stream
188 tools::SvRef<SotStorageStream> xBookStrm = ScfTools::OpenStorageStreamRead( xRootStrg, EXC_STREAM_BOOK"Book" );
189 XclBiff eBookBiff = xBookStrm.is() ? XclImpStream::DetectBiffVersion( *xBookStrm ) : EXC_BIFF_UNKNOWN;
190
191 // try to open the "Workbook" stream
192 tools::SvRef<SotStorageStream> xWorkbookStrm = ScfTools::OpenStorageStreamRead( xRootStrg, EXC_STREAM_WORKBOOK"Workbook" );
193 XclBiff eWorkbookBiff = xWorkbookStrm.is() ? XclImpStream::DetectBiffVersion( *xWorkbookStrm ) : EXC_BIFF_UNKNOWN;
194
195 // decide which stream to use
196 if( (eWorkbookBiff != EXC_BIFF_UNKNOWN) && ((eBookBiff == EXC_BIFF_UNKNOWN) || (eWorkbookBiff > eBookBiff)) )
197 {
198 /* Only "Workbook" stream exists; or both streams exist,
199 and "Workbook" has higher BIFF version than "Book" stream. */
200 xStrgStrm = xWorkbookStrm;
201 eBiff = eWorkbookBiff;
202 }
203 else if( eBookBiff != EXC_BIFF_UNKNOWN )
204 {
205 /* Only "Book" stream exists; or both streams exist,
206 and "Book" has higher BIFF version than "Workbook" stream. */
207 xStrgStrm = xBookStrm;
208 eBiff = eBookBiff;
209 }
210
211 pBookStrm = xStrgStrm.get();
212 }
213
214 // no "Book" or "Workbook" stream found, try plain input stream from medium (even for BIFF5+)
215 if( !pBookStrm )
216 {
217 eBiff = XclImpStream::DetectBiffVersion( *pMedStrm );
218 if( eBiff != EXC_BIFF_UNKNOWN )
219 pBookStrm = pMedStrm;
220 }
221
222 // try to import the file
223 ErrCode eRet = SCERR_IMPORT_UNKNOWN_BIFFErrCode( ErrCodeArea::Sc, ErrCodeClass::Read, 8 );
224 if( pBookStrm )
225 {
226 pBookStrm->SetBufferSize( 0x8000 ); // still needed?
227
228 XclImpRootData aImpData(
229 eBiff, rMedium, xRootStrg, *pDocument,
230 utl_getWinTextEncodingFromLangStr(utl_getLocaleForGlobalDefaultEncoding()));
231 std::unique_ptr< ImportExcel > xFilter;
232 switch( eBiff )
233 {
234 case EXC_BIFF2:
235 case EXC_BIFF3:
236 case EXC_BIFF4:
237 case EXC_BIFF5:
238 xFilter.reset( new ImportExcel( aImpData, *pBookStrm ) );
239 break;
240 case EXC_BIFF8:
241 xFilter.reset( new ImportExcel8( aImpData, *pBookStrm ) );
242 break;
243 default: DBG_ERROR_BIFF()do { if (true && (((sal_Bool)1))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/sc/source/filter/excel/excel.cxx"
":" "243" ": "), "%s", "Unknown BIFF type!"); } } while (false
);
244 }
245
246 eRet = xFilter ? xFilter->Read() : SCERR_IMPORT_INTERNALErrCode( ErrCodeArea::Sc, ErrCodeClass::Read, 11 );
247 }
248
249 return eRet;
250}
251
252static ErrCode lcl_ExportExcelBiff( SfxMedium& rMedium, ScDocument *pDocument,
253 SvStream* pMedStrm, bool bBiff8, rtl_TextEncoding eNach )
254{
255 uno::Reference< packages::XPackageEncryption > xPackageEncryption;
256 uno::Sequence< beans::NamedValue > aEncryptionData;
257 const SfxUnoAnyItem* pEncryptionDataItem = SfxItemSet::GetItem<SfxUnoAnyItem>(rMedium.GetItemSet(), SID_ENCRYPTIONDATA(5000 + 1722), false);
258 SvStream* pOriginalMediaStrm = pMedStrm;
259 std::shared_ptr<SvStream> pMediaStrm;
260 if (pEncryptionDataItem
10.1
'pEncryptionDataItem' is non-null
10.1
'pEncryptionDataItem' is non-null
 && (pEncryptionDataItem->GetValue() >>= aEncryptionData))
11
←
Assuming the condition is true
→
12
←
Taking true branch
→
261 {
262 ::comphelper::SequenceAsHashMap aHashData(aEncryptionData);
263 OUString sCryptoType = aHashData.getUnpackedValueOrDefault("CryptoType", OUString());
264
265 if (sCryptoType.getLength())
13
←
Assuming the condition is true
→
14
←
Taking true branch
→
266 {
267 uno::Reference<uno::XComponentContext> xComponentContext(comphelper::getProcessComponentContext());
268 uno::Sequence<uno::Any> aArguments{
269 uno::makeAny(beans::NamedValue("Binary", uno::makeAny(true))) };
270 xPackageEncryption.set(
271 xComponentContext->getServiceManager()->createInstanceWithArgumentsAndContext(
272 "com.sun.star.comp.oox.crypto." + sCryptoType, aArguments, xComponentContext), uno::UNO_QUERY);
273
274 if (xPackageEncryption.is())
15
←
Taking true branch
→
275 {
276 // We have an encryptor. Export document into memory stream and encrypt it later
277 pMediaStrm = std::make_shared<SvMemoryStream>();
278 pMedStrm = pMediaStrm.get();
279
280 // Temp removal of EncryptionData to avoid password protection triggering
281 rMedium.GetItemSet()->ClearItem(SID_ENCRYPTIONDATA(5000 + 1722));
282 }
283 }
284 }
285
286 // try to open an OLE storage
287 tools::SvRef<SotStorage> xRootStrg = new SotStorage( pMedStrm, false );
288 if( xRootStrg->GetError() ) return SCERR_IMPORT_OPENErrCode( ErrCodeArea::Sc, ErrCodeClass::Read, 2 );
16
←
Taking false branch
→
289
290 // create BIFF dependent strings
291 OUString aStrmName, aClipName, aClassName;
292 if( bBiff8
16.1
'bBiff8' is false
16.1
'bBiff8' is false
 )
17
←
Taking false branch
→
293 {
294 aStrmName = EXC_STREAM_WORKBOOK"Workbook";
295 aClipName = "Biff8";
296 aClassName = "Microsoft Excel 97-Tabelle";
297 }
298 else
299 {
300 aStrmName = EXC_STREAM_BOOK"Book";
301 aClipName = "Biff5";
302 aClassName = "Microsoft Excel 5.0-Tabelle";
303 }
304
305 // open the "Book"/"Workbook" stream
306 tools::SvRef<SotStorageStream> xStrgStrm = ScfTools::OpenStorageStreamWrite( xRootStrg, aStrmName );
307 if( !xStrgStrm.is() || xStrgStrm->GetError() ) return SCERR_IMPORT_OPENErrCode( ErrCodeArea::Sc, ErrCodeClass::Read, 2 );
18
←
Taking false branch
→
308
309 xStrgStrm->SetBufferSize( 0x8000 ); // still needed?
310
311 ErrCode eRet = SCERR_IMPORT_UNKNOWN_BIFFErrCode( ErrCodeArea::Sc, ErrCodeClass::Read, 8 );
312 XclExpRootData aExpData( bBiff8
18.1
'bBiff8' is false
18.1
'bBiff8' is false
 ? EXC_BIFF8 : EXC_BIFF5, rMedium, xRootStrg, *pDocument, eNach );
19
←
'?' condition is false
→
313 if ( bBiff8
19.1
'bBiff8' is false
19.1
'bBiff8' is false
 )
20
←
Taking false branch
→
314 {
315 ExportBiff8 aFilter( aExpData, *xStrgStrm );
316 eRet = aFilter.Write();
317 }
318 else
319 {
320 ExportBiff5 aFilter( aExpData, *xStrgStrm );
321 eRet = aFilter.Write();
322 }
323
324 if( eRet == SCWARN_IMPORT_RANGE_OVERFLOWErrCode( WarningFlag::Yes, ErrCodeArea::Sc, ErrCodeClass::Import
, 1 ) )
21
←
Taking false branch
→
325 eRet = SCWARN_EXPORT_MAXROWErrCode( WarningFlag::Yes, ErrCodeArea::Sc, ErrCodeClass::Export
, 3 );
326
327 SvGlobalName aGlobName(MSO_EXCEL5_CLASSID0x00020810L, 0x0000, 0x0000, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00
, 0x00, 0x46);
328 SotClipboardFormatId nClip = SotExchange::RegisterFormatName( aClipName );
329 xRootStrg->SetClass( aGlobName, nClip, aClassName );
330
331 xStrgStrm->Commit();
332 xRootStrg->Commit();
333
334 if (xPackageEncryption.is())
22
←
Taking true branch
→
335 {
336 // Perform DRM encryption
337 pMedStrm->Seek(0);
338
339 xPackageEncryption->setupEncryption(aEncryptionData);
340
341 uno::Reference<io::XInputStream > xInputStream(new utl::OSeekableInputStreamWrapper(pMedStrm, false));
342 uno::Sequence<beans::NamedValue> aStreams = xPackageEncryption->encrypt(xInputStream);
343
344 tools::SvRef<SotStorage> xEncryptedRootStrg = new SotStorage(pOriginalMediaStrm, false);
23
←
Memory is allocated
→
345 for (const beans::NamedValue & aStreamData : std::as_const(aStreams))
24
←
Assuming '__begin2' is not equal to '__end2'
→
346 {
347 // To avoid long paths split and open substorages recursively
348 // Splitting paths manually, since comphelper::string::split is trimming special characters like \0x01, \0x09
349 tools::SvRef<SotStorage> pStorage = xEncryptedRootStrg.get();
43
←
Calling 'SvRef::get'
→
350 OUString sFileName;
351 sal_Int32 idx = 0;
352 do
27
←
Loop condition is false. Exiting loop
→
353 {
354 OUString sPathElem = aStreamData.Name.getToken(0, L'/', idx);
355 if (!sPathElem.isEmpty())
25
←
Taking false branch
→
356 {
357 if (idx < 0)
358 {
359 sFileName = sPathElem;
360 }
361 else
362 {
363 pStorage = pStorage->OpenSotStorage(sPathElem);
364 }
365 }
366 } while (pStorage && idx >= 0);
26
←
Assuming 'idx' is < 0
→
367
368 if (!pStorage)
28
←
Taking false branch
→
369 {
370 eRet = ERRCODE_IO_GENERALErrCode( ErrCodeArea::Io, ErrCodeClass::General, 13 );
371 break;
372 }
373
374 tools::SvRef<SotStorageStream> pStream = pStorage->OpenSotStream(sFileName);
375 if (!pStream)
29
←
Taking false branch
→
376 {
377 eRet = ERRCODE_IO_GENERALErrCode( ErrCodeArea::Io, ErrCodeClass::General, 13 );
378 break;
379 }
380 uno::Sequence<sal_Int8> aStreamContent;
381 aStreamData.Value >>= aStreamContent;
382 size_t nBytesWritten = pStream->WriteBytes(aStreamContent.getArray(), aStreamContent.getLength());
383 if (nBytesWritten != static_cast<size_t>(aStreamContent.getLength()))
30
←
Assuming the condition is false
→
31
←
Taking false branch
→
384 {
385 eRet = ERRCODE_IO_CANTWRITEErrCode( ErrCodeArea::Io, ErrCodeClass::Write, 16 );
386 break;
387 }
388 }
32
←
Calling '~SvRef'
→
42
←
Returning from '~SvRef'
→
389 xEncryptedRootStrg->Commit();
390
391 // Restore encryption data
392 rMedium.GetItemSet()->Put(SfxUnoAnyItem(SID_ENCRYPTIONDATA(5000 + 1722), uno::makeAny(aEncryptionData)));
393 }
394
395 return eRet;
396}
397
398ErrCode ScFormatFilterPluginImpl::ScExportExcel5( SfxMedium& rMedium, ScDocument *pDocument,
399 ExportFormatExcel eFormat, rtl_TextEncoding eNach )
400{
401 if( eFormat != ExpBiff5 && eFormat != ExpBiff8 )
1
Assuming 'eFormat' is equal to ExpBiff5
→
402 return SCERR_IMPORT_NIErrCode( ErrCodeArea::Sc, ErrCodeClass::Read, 7 );
403
404 // check the passed Calc document
405 OSL_ENSURE( pDocument, "::ScExportExcel5 - no document" )do { if (true && (!(pDocument))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/sc/source/filter/excel/excel.cxx"
":" "405" ": "), "%s", "::ScExportExcel5 - no document"); } }
while (false);
2
←
Assuming 'pDocument' is non-null
→
3
←
Taking false branch
→
4
←
Loop condition is false. Exiting loop
→
406 if( !pDocument
4.1
'pDocument' is non-null
4.1
'pDocument' is non-null
 ) return SCERR_IMPORT_INTERNALErrCode( ErrCodeArea::Sc, ErrCodeClass::Read, 11 ); // should not happen
5
←
Taking false branch
→
407
408 // check the output stream from medium
409 SvStream* pMedStrm = rMedium.GetOutStream();
410 OSL_ENSURE( pMedStrm, "::ScExportExcel5 - medium without output stream" )do { if (true && (!(pMedStrm))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/sc/source/filter/excel/excel.cxx"
":" "410" ": "), "%s", "::ScExportExcel5 - medium without output stream"
); } } while (false);
6
←
Assuming 'pMedStrm' is non-null
→
7
←
Taking false branch
→
8
←
Loop condition is false. Exiting loop
→
411 if( !pMedStrm
8.1
'pMedStrm' is non-null
8.1
'pMedStrm' is non-null
 ) return SCERR_IMPORT_OPENErrCode( ErrCodeArea::Sc, ErrCodeClass::Read, 2 ); // should not happen
9
←
Taking false branch
→
412
413 ErrCode eRet = lcl_ExportExcelBiff(rMedium, pDocument, pMedStrm, eFormat == ExpBiff8, eNach);
10
←
Calling 'lcl_ExportExcelBiff'
→
414 return eRet;
415}
416
417extern "C" SAL_DLLPUBLIC_EXPORT__attribute__ ((visibility("default"))) bool TestImportCalcRTF(SvStream &rStream)
418{
419 ScDLL::Init();
420 ScDocument aDocument;
421 ScDocOptions aDocOpt = aDocument.GetDocOptions();
422 aDocOpt.SetLookUpColRowNames(false);
423 aDocument.SetDocOptions(aDocOpt);
424 aDocument.MakeTable(0);
425 aDocument.EnableExecuteLink(false);
426 aDocument.SetInsertingFromOtherDoc(true);
427 ScRange aRange;
428 return ScFormatFilter::Get().ScImportRTF(rStream, OUString(), &aDocument, aRange) == ERRCODE_NONEErrCode(0);
429}
430
431extern "C" SAL_DLLPUBLIC_EXPORT__attribute__ ((visibility("default"))) bool TestImportXLS(SvStream& rStream)
432{
433 ScDLL::Init();
434 SfxMedium aMedium;
435 css::uno::Reference<css::io::XInputStream> xStm(new utl::OInputStreamWrapper(rStream));
436 aMedium.GetItemSet()->Put(SfxUnoAnyItem(SID_INPUTSTREAM(5000 + 1648), css::uno::makeAny(xStm)));
437
438 ScDocShellRef xDocShell = new ScDocShell(SfxModelFlags::EMBEDDED_OBJECT |
439 SfxModelFlags::DISABLE_EMBEDDED_SCRIPTS |
440 SfxModelFlags::DISABLE_DOCUMENT_RECOVERY);
441
442 xDocShell->DoInitNew();
443
444 ScDocument& rDoc = xDocShell->GetDocument();
445
446 ScDocOptions aDocOpt = rDoc.GetDocOptions();
447 aDocOpt.SetLookUpColRowNames(false);
448 rDoc.SetDocOptions(aDocOpt);
449 rDoc.MakeTable(0);
450 rDoc.EnableExecuteLink(false);
451 rDoc.SetInsertingFromOtherDoc(true);
452 rDoc.InitDrawLayer(xDocShell.get());
453 bool bRet(false);
454 try
455 {
456 bRet = ScFormatFilter::Get().ScImportExcel(aMedium, &rDoc, EIF_AUTO) == ERRCODE_NONEErrCode(0);
457 }
458 catch (const css::ucb::ContentCreationException&)
459 {
460 }
461 catch (const std::out_of_range&)
462 {
463 }
464 xDocShell->DoClose();
465 xDocShell.clear();
466 return bRet;
467}
468
469extern "C" SAL_DLLPUBLIC_EXPORT__attribute__ ((visibility("default"))) bool TestImportDIF(SvStream &rStream)
470{
471 ScDLL::Init();
472 ScDocument aDocument;
473 ScDocOptions aDocOpt = aDocument.GetDocOptions();
474 aDocOpt.SetLookUpColRowNames(false);
475 aDocument.SetDocOptions(aDocOpt);
476 aDocument.MakeTable(0);
477 aDocument.EnableExecuteLink(false);
478 aDocument.SetInsertingFromOtherDoc(true);
479 return ScFormatFilter::Get().ScImportDif(rStream, &aDocument, ScAddress(0, 0, 0), RTL_TEXTENCODING_IBM_850(((rtl_TextEncoding) 4))) == ERRCODE_NONEErrCode(0);
480}
481
482/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
←

/home/maarten/src/libreoffice/core/include/tools/ref.hxx

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19#ifndef INCLUDED_TOOLS_REF_HXX
20#define INCLUDED_TOOLS_REF_HXX
21
22#include <sal/config.h>
23#include <cassert>
24#include <tools/toolsdllapi.h>
25#include <utility>
26
27/**
28 This implements similar functionality to boost::intrusive_ptr
29*/
30
31namespace tools {
32
33/** T must be a class that extends SvRefBase */
34template<typename T> class SAL_DLLPUBLIC_RTTI__attribute__ ((type_visibility("default"))) SvRef final {
35public:
36 SvRef(): pObj(nullptr) {}
37
38 SvRef(SvRef&& rObj) noexcept
39 {
40 pObj = rObj.pObj;
41 rObj.pObj = nullptr;
42 }
43
44 SvRef(SvRef const & rObj): pObj(rObj.pObj)
45 {
46 if (pObj != nullptr) pObj->AddNextRef();
47 }
48
49 SvRef(T * pObjP): pObj(pObjP)
50 {
51 if (pObj != nullptr) pObj->AddFirstRef();
52 }
53
54 ~SvRef()
55 {
56 if (pObj != nullptr) pObj->ReleaseRef();
33
←
Taking true branch
→
34
←
Calling 'SvRefBase::ReleaseRef'
→
41
←
Returning; memory was released
→
57 }
58
59 void clear()
60 {
61 if (pObj != nullptr) {
62 T * pRefObj = pObj;
63 pObj = nullptr;
64 pRefObj->ReleaseRef();
65 }
66 }
67
68 SvRef & operator =(SvRef const & rObj)
69 {
70 if (rObj.pObj != nullptr) {
71 rObj.pObj->AddNextRef();
72 }
73 T * pRefObj = pObj;
74 pObj = rObj.pObj;
75 if (pRefObj != nullptr) {
76 pRefObj->ReleaseRef();
77 }
78 return *this;
79 }
80
81 SvRef & operator =(SvRef && rObj)
82 {
83 if (pObj != nullptr) {
84 pObj->ReleaseRef();
85 }
86 pObj = rObj.pObj;
87 rObj.pObj = nullptr;
88 return *this;
89 }
90
91 bool is() const { return pObj != nullptr; }
92
93 explicit operator bool() const { return is(); }
94
95 T * get() const { return pObj; }
44
←
Use of memory after it is freed
96
97 T * operator ->() const { assert(pObj != nullptr)(static_cast <bool> (pObj != nullptr) ? void (0) : __assert_fail
("pObj != nullptr", "/home/maarten/src/libreoffice/core/include/tools/ref.hxx"
, 97, __extension__ __PRETTY_FUNCTION__)); return pObj; }
98
99 T & operator *() const { assert(pObj != nullptr)(static_cast <bool> (pObj != nullptr) ? void (0) : __assert_fail
("pObj != nullptr", "/home/maarten/src/libreoffice/core/include/tools/ref.hxx"
, 99, __extension__ __PRETTY_FUNCTION__)); return *pObj; }
100
101 bool operator ==(const SvRef<T> &rhs) const { return pObj == rhs.pObj; }
102 bool operator !=(const SvRef<T> &rhs) const { return !(*this == rhs); }
103
104private:
105 T * pObj;
106};
107
108/**
109 * This implements similar functionality to std::make_shared.
110 */
111template<typename T, typename... Args>
112SvRef<T> make_ref(Args&& ... args)
113{
114 return SvRef<T>(new T(std::forward<Args>(args)...));
115}
116
117}
118
119/** Classes that want to be referenced-counted via SvRef<T>, should extend this base class */
120class TOOLS_DLLPUBLIC__attribute__ ((visibility("default"))) SvRefBase
121{
122 // work around a clang 3.5 optimization bug: if the bNoDelete is *first*
123 // it mis-compiles "if (--nRefCount == 0)" and never deletes any object
124 unsigned int nRefCount : 31;
125 // the only reason this is not bool is because MSVC cannot handle mixed type bitfields
126 unsigned int bNoDelete : 1;
127
128protected:
129 virtual ~SvRefBase() COVERITY_NOEXCEPT_FALSE;
130
131public:
132 SvRefBase() : nRefCount(0), bNoDelete(1) {}
133 SvRefBase(const SvRefBase &) : nRefCount(0), bNoDelete(1) {}
134
135 SvRefBase & operator=(const SvRefBase &) { return *this; }
136
137 void RestoreNoDelete()
138 { bNoDelete = 1; }
139
140 void AddNextRef()
141 {
142 assert( nRefCount < (1 << 30) && "Do not add refs to dead objects" )(static_cast <bool> (nRefCount < (1 << 30) &&
"Do not add refs to dead objects") ? void (0) : __assert_fail
("nRefCount < (1 << 30) && \"Do not add refs to dead objects\""
, "/home/maarten/src/libreoffice/core/include/tools/ref.hxx",
142, __extension__ __PRETTY_FUNCTION__));
143 ++nRefCount;
144 }
145
146 void AddFirstRef()
147 {
148 assert( nRefCount < (1 << 30) && "Do not add refs to dead objects" )(static_cast <bool> (nRefCount < (1 << 30) &&
"Do not add refs to dead objects") ? void (0) : __assert_fail
("nRefCount < (1 << 30) && \"Do not add refs to dead objects\""
, "/home/maarten/src/libreoffice/core/include/tools/ref.hxx",
148, __extension__ __PRETTY_FUNCTION__));
149 if( bNoDelete )
150 bNoDelete = 0;
151 ++nRefCount;
152 }
153
154 void ReleaseRef()
155 {
156 assert( nRefCount >= 1)(static_cast <bool> (nRefCount >= 1) ? void (0) : __assert_fail
("nRefCount >= 1", "/home/maarten/src/libreoffice/core/include/tools/ref.hxx"
, 156, __extension__ __PRETTY_FUNCTION__));
35
←
Assuming field 'nRefCount' is >= 1
→
36
←
'?' condition is true
→
157 if( --nRefCount == 0 && !bNoDelete)
37
←
Assuming the condition is true
→
38
←
Assuming field 'bNoDelete' is 0
→
39
←
Taking true branch
→
158 {
159 // I'm not sure about the original purpose of this line, but right now
160 // it serves the purpose that anything that attempts to do an AddRef()
161 // after an object is deleted will trip an assert.
162 nRefCount = 1 << 30;
163 delete this;
40
←
Memory is released
→
164 }
165 }
166
167 unsigned int GetRefCount() const
168 { return nRefCount; }
169};
170
171template<typename T>
172class SvCompatWeakBase;
173
174/** SvCompatWeakHdl acts as an intermediary between SvCompatWeakRef<T> and T.
175*/
176template<typename T>
177class SvCompatWeakHdl final : public SvRefBase
178{
179 friend class SvCompatWeakBase<T>;
180 T* _pObj;
181
182 SvCompatWeakHdl( T* pObj ) : _pObj( pObj ) {}
183
184public:
185 void ResetWeakBase( ) { _pObj = nullptr; }
186 T* GetObj() { return _pObj; }
187};
188
189/** We only have one place that extends this, in include/sfx2/frame.hxx, class SfxFrame.
190 Its function is to notify the SvCompatWeakHdl when an SfxFrame object is deleted.
191*/
192template<typename T>
193class SvCompatWeakBase
194{
195 tools::SvRef< SvCompatWeakHdl<T> > _xHdl;
196
197public:
198 /** Does not use initializer due to compiler warnings,
199 because the lifetime of the _xHdl object can exceed the lifetime of this class.
200 */
201 SvCompatWeakBase( T* pObj ) { _xHdl = new SvCompatWeakHdl<T>( pObj ); }
202
203 ~SvCompatWeakBase() { _xHdl->ResetWeakBase(); }
204
205 SvCompatWeakHdl<T>* GetHdl() { return _xHdl.get(); }
206};
207
208/** We only have one weak reference in LO, in include/sfx2/frame.hxx, class SfxFrameWeak.
209*/
210template<typename T>
211class SAL_WARN_UNUSED__attribute__((warn_unused)) SvCompatWeakRef
212{
213 tools::SvRef< SvCompatWeakHdl<T> > _xHdl;
214public:
215 SvCompatWeakRef( ) {}
216 SvCompatWeakRef( T* pObj )
217 { if( pObj ) _xHdl = pObj->GetHdl(); }
218#if defined(__COVERITY__)
219 ~SvCompatWeakRef() COVERITY_NOEXCEPT_FALSE {}
220#endif
221 SvCompatWeakRef& operator = ( T * pObj )
222 { _xHdl = pObj ? pObj->GetHdl() : nullptr; return *this; }
223 bool is() const
224 { return _xHdl.is() && _xHdl->GetObj(); }
225 explicit operator bool() const { return is(); }
226 T* operator -> () const
227 { return _xHdl.is() ? _xHdl->GetObj() : nullptr; }
228 operator T* () const
229 { return _xHdl.is() ? _xHdl->GetObj() : nullptr; }
230};
231
232#endif
233
234/* vim:set shiftwidth=4 softtabstop=4 expandtab: */