C++ (Cpp) FXSYS_atoui Examples

Example #1

File: cpdf_data_avail.cpp Project: documentcloud/pdfium

std::unique_ptr<CPDF_Object> CPDF_DataAvail::ParseIndirectObjectAt(
    FX_FILESIZE pos,
    uint32_t objnum,
    CPDF_IndirectObjectHolder* pObjList) {
  FX_FILESIZE SavedPos = m_syntaxParser.SavePos();
  m_syntaxParser.RestorePos(pos);

  bool bIsNumber;
  CFX_ByteString word = m_syntaxParser.GetNextWord(&bIsNumber);
  if (!bIsNumber)
    return nullptr;

  uint32_t parser_objnum = FXSYS_atoui(word.c_str());
  if (objnum && parser_objnum != objnum)
    return nullptr;

  word = m_syntaxParser.GetNextWord(&bIsNumber);
  if (!bIsNumber)
    return nullptr;

  uint32_t gennum = FXSYS_atoui(word.c_str());
  if (m_syntaxParser.GetKeyword() != "obj") {
    m_syntaxParser.RestorePos(SavedPos);
    return nullptr;
  }

  std::unique_ptr<CPDF_Object> pObj =
      m_syntaxParser.GetObject(pObjList, parser_objnum, gennum, true);
  m_syntaxParser.RestorePos(SavedPos);
  return pObj;
}

Example #2

File: cpdf_data_avail.cpp Project: documentcloud/pdfium

bool CPDF_DataAvail::IsLinearizedFile(uint8_t* pData, uint32_t dwLen) {
  if (m_pLinearized)
    return true;

  ScopedFileStream file(FX_CreateMemoryStream(pData, (size_t)dwLen, false));
  int32_t offset = GetHeaderOffset(file.get());
  if (offset == -1) {
    m_docStatus = PDF_DATAAVAIL_ERROR;
    return false;
  }

  m_dwHeaderOffset = offset;
  m_syntaxParser.InitParser(file.get(), offset);
  m_syntaxParser.RestorePos(m_syntaxParser.m_HeaderOffset + 9);

  bool bNumber;
  CFX_ByteString wordObjNum = m_syntaxParser.GetNextWord(&bNumber);
  if (!bNumber)
    return false;

  uint32_t objnum = FXSYS_atoui(wordObjNum.c_str());
  m_pLinearized = CPDF_LinearizedHeader::CreateForObject(
      ParseIndirectObjectAt(m_syntaxParser.m_HeaderOffset + 9, objnum));
  if (!m_pLinearized ||
      m_pLinearized->GetFileSize() != m_pFileRead->GetSize()) {
    m_pLinearized.reset();
    return false;
  }
  return true;
}

Example #3

File: cpdf_data_avail.cpp Project: documentcloud/pdfium

int32_t CPDF_DataAvail::CheckCrossRefStream(DownloadHints* pHints,
                                            FX_FILESIZE& xref_offset) {
  xref_offset = 0;
  uint32_t req_size =
      (uint32_t)(m_Pos + 512 > m_dwFileLen ? m_dwFileLen - m_Pos : 512);

  if (m_pFileAvail->IsDataAvail(m_Pos, req_size)) {
    int32_t iSize = (int32_t)(m_Pos + req_size - m_dwCurrentXRefSteam);
    CFX_BinaryBuf buf(iSize);
    uint8_t* pBuf = buf.GetBuffer();

    m_pFileRead->ReadBlock(pBuf, m_dwCurrentXRefSteam, iSize);

    ScopedFileStream file(FX_CreateMemoryStream(pBuf, (size_t)iSize, false));
    m_parser.m_pSyntax->InitParser(file.get(), 0);

    bool bNumber;
    CFX_ByteString objnum = m_parser.m_pSyntax->GetNextWord(&bNumber);
    if (!bNumber)
      return -1;

    uint32_t objNum = FXSYS_atoui(objnum.c_str());
    std::unique_ptr<CPDF_Object> pObj =
        m_parser.ParseIndirectObjectAt(nullptr, 0, objNum);

    if (!pObj) {
      m_Pos += m_parser.m_pSyntax->SavePos();
      return 0;
    }

    CPDF_Dictionary* pDict = pObj->GetDict();
    CPDF_Name* pName = ToName(pDict ? pDict->GetObjectFor("Type") : nullptr);
    if (pName && pName->GetString() == "XRef") {
      m_Pos += m_parser.m_pSyntax->SavePos();
      xref_offset = pObj->GetDict()->GetIntegerFor("Prev");
      return 1;
    }
    return -1;
  }
  pHints->AddSegment(m_Pos, req_size);
  return 0;
}

Example #4

File: cfdf_document.cpp Project: hfiguiere/pdfium

void CFDF_Document::ParseStream(IFX_FileRead* pFile, FX_BOOL bOwnFile) {
  m_pFile = pFile;
  m_bOwnFile = bOwnFile;
  CPDF_SyntaxParser parser;
  parser.InitParser(m_pFile, 0);
  while (1) {
    bool bNumber;
    CFX_ByteString word = parser.GetNextWord(&bNumber);
    if (bNumber) {
      uint32_t objnum = FXSYS_atoui(word.c_str());
      word = parser.GetNextWord(&bNumber);
      if (!bNumber)
        break;

      word = parser.GetNextWord(nullptr);
      if (word != "obj")
        break;

      CPDF_Object* pObj = parser.GetObject(this, objnum, 0, true);
      if (!pObj)
        break;

      ReplaceIndirectObjectIfHigherGeneration(objnum, pObj);
      word = parser.GetNextWord(nullptr);
      if (word != "endobj")
        break;
    } else {
      if (word != "trailer")
        break;

      if (CPDF_Dictionary* pMainDict =
              ToDictionary(parser.GetObject(this, 0, 0, true))) {
        m_pRootDict = pMainDict->GetDictFor("Root");
        pMainDict->Release();
      }
      break;
    }
  }
}