/*************************************************
* DataSink Header File                           *
* (C) 1999-2003 The Botan Project                *
*************************************************/

#ifndef BOTAN_DATA_SINK__
#define BOTAN_DATA_SINK__

#include <botan/filter.h>
#include <iosfwd>

namespace Botan {

/*************************************************
* Generic DataSink Interface                     *
*************************************************/
class DataSink : public Filter
   {
   public:
      bool attachable() { return false; }
      DataSink() {}
      virtual ~DataSink() {}
   private:
      DataSink& operator=(const DataSink&) { return (*this); }
      DataSink(const DataSink&);
   };

/*************************************************
* Stream-Based DataSink                          *
*************************************************/
class DataSink_Stream : public DataSink
   {
   public:
      void write(const byte[], u32bit);
      DataSink_Stream(std::ostream&);
      DataSink_Stream(const std::string&);
      ~DataSink_Stream();
   private:
      const std::string fsname;
      std::ostream* sink;
      bool owns;
   };

}

#endif
