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[apt.git] / apt-inst / contrib / extracttar.h

diff --git a/apt-inst/contrib/extracttar.h b/apt-inst/contrib/extracttar.h
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+// -*- mode: cpp; mode: fold -*-
+// Description                                                         /*{{{*/
+// $Id: extracttar.h,v 1.2 2001/02/20 07:03:17 jgg Exp $
+/* ######################################################################
+
+   Extract a Tar - Tar Extractor
+   
+   The tar extractor takes an ordinary gzip compressed tar stream from 
+   the given file and explodes it, passing the individual items to the
+   given Directory Stream for processing.
+   
+   ##################################################################### */
+                                                                       /*}}}*/
+#ifndef PKGLIB_EXTRACTTAR_H
+#define PKGLIB_EXTRACTTAR_H
+
+#ifdef __GNUG__
+#pragma interface "apt-pkg/extracttar.h"
+#endif
+
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/dirstream.h>
+
+class ExtractTar
+{
+   protected:
+   
+   struct TarHeader;
+   
+   // The varios types items can be
+   enum ItemType {NormalFile0 = '\0',NormalFile = '0',HardLink = '1',
+                  SymbolicLink = '2',CharacterDevice = '3',
+                  BlockDevice = '4',Directory = '5',FIFO = '6',
+                  GNU_LongLink = 'K',GNU_LongName = 'L'};
+
+   FileFd &File;
+   unsigned long MaxInSize;
+   int GZPid;
+   FileFd InFd;
+   bool Eof;
+   
+   // Fork and reap gzip
+   bool StartGzip();
+   bool Done(bool Force);
+   
+   public:
+
+   bool Go(pkgDirStream &Stream);
+   
+   ExtractTar(FileFd &Fd,unsigned long Max);
+   virtual ~ExtractTar();
+};
+
+#endif