Method ExtractArchive

Libraries/unrar/extract.cpp:104–229

EXTRACT_ARC_CODE CmdExtract::ExtractArchive()
{
  Archive Arc(Cmd);
  if (!Arc.WOpen(ArcName))
    return EXTRACT_ARC_NEXT;

  if (!Arc.IsArchive(true))
  {
#if !defined(SFX_MODULE) && !defined(RARDLL)
    if (CmpExt(ArcName,L"rev"))
    {
      wchar FirstVolName[NM];
      VolNameToFirstName(ArcName,FirstVolName,ASIZE(FirstVolName),true);

      // If several volume names from same volume set are specified
      // and current volume is not first in set and first volume is present
      // and specified too, let's skip the current volume.
      if (wcsicomp(ArcName,FirstVolName)!=0 && FileExist(FirstVolName) &&
          Cmd->ArcNames.Search(FirstVolName,false))
        return EXTRACT_ARC_NEXT;
      RecVolumesTest(Cmd,NULL,ArcName);
      TotalFileCount++; // Suppress "No files to extract" message.
      return EXTRACT_ARC_NEXT;
    }
#endif

    mprintf(St(MNotRAR),ArcName);

#ifndef SFX_MODULE
    if (CmpExt(ArcName,L"rar"))
#endif
      ErrHandler.SetErrorCode(RARX_WARNING);
    return EXTRACT_ARC_NEXT;
  }

  if (Arc.FailedHeaderDecryption) // Bad archive password.
    return EXTRACT_ARC_NEXT;

#ifndef SFX_MODULE
  if (Arc.Volume && !Arc.FirstVolume)
  {
    wchar FirstVolName[NM];
    VolNameToFirstName(ArcName,FirstVolName,ASIZE(FirstVolName),Arc.NewNumbering);

    // If several volume names from same volume set are specified
    // and current volume is not first in set and first volume is present
    // and specified too, let's skip the current volume.
    if (wcsicomp(ArcName,FirstVolName)!=0 && FileExist(FirstVolName) &&
        Cmd->ArcNames.Search(FirstVolName,false))
      return EXTRACT_ARC_NEXT;
  }
#endif

  int64 VolumeSetSize=0; // Total size of volumes after the current volume.

  if (Arc.Volume)
  {
    // Calculate the total size of all accessible volumes.