Function MergeArchive

Libraries/unrar/volume.cpp:10–166

bool MergeArchive(Archive &Arc,ComprDataIO *DataIO,bool ShowFileName,wchar Command)
{
  RAROptions *Cmd=Arc.GetRAROptions();

  HEADER_TYPE HeaderType=Arc.GetHeaderType();
  FileHeader *hd=HeaderType==HEAD_SERVICE ? &Arc.SubHead:&Arc.FileHead;
  bool SplitHeader=(HeaderType==HEAD_FILE || HeaderType==HEAD_SERVICE) &&
                   hd->SplitAfter;

  if (DataIO!=NULL && SplitHeader)
  {
    bool PackedHashPresent=Arc.Format==RARFMT50 || 
         hd->UnpVer>=20 && hd->FileHash.CRC32!=0xffffffff;
    if (PackedHashPresent && 
        !DataIO->PackedDataHash.Cmp(&hd->FileHash,hd->UseHashKey ? hd->HashKey:NULL))
      uiMsg(UIERROR_CHECKSUMPACKED, Arc.FileName, hd->FileName);
  }

  int64 PosBeforeClose=Arc.Tell();

  if (DataIO!=NULL)
    DataIO->ProcessedArcSize+=Arc.FileLength();


  Arc.Close();

  wchar NextName[NM];
  wcsncpyz(NextName,Arc.FileName,ASIZE(NextName));
  NextVolumeName(NextName,ASIZE(NextName),!Arc.NewNumbering);

#if !defined(SFX_MODULE) && !defined(RARDLL)
  bool RecoveryDone=false;
#endif
  bool FailedOpen=false,OldSchemeTested=false;

#if !defined(SILENT)
  // In -vp mode we force the pause before next volume even if it is present
  // and even if we are on the hard disk. It is important when user does not
  // want to process partially downloaded volumes preliminary.
  if (Cmd->VolumePause && !uiAskNextVolume(NextName,ASIZE(NextName)))
    FailedOpen=true;
#endif

  uint OpenMode = Cmd->OpenShared ? FMF_OPENSHARED : 0;

  if (!FailedOpen)
    while (!Arc.Open(NextName,OpenMode))
    {
      // We need to open a new volume which size was not calculated
      // in total size before, so we cannot calculate the total progress
      // anymore. Let's reset the total size to zero and stop 
      // the total progress.
      if (DataIO!=NULL)
        DataIO->TotalArcSize=0;

      if (!OldSchemeTested)
      {
        // Checking for new style volumes renamed by user to old style