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diff --git a/libkmime/kmime_codec_identity.h b/libkmime/kmime_codec_identity.h
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+++ b/libkmime/kmime_codec_identity.h
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+/*  -*- c++ -*-
+    kmime_codec_identity.h
+
+    This file is part of KMime, the KDE internet mail/usenet news message library.
+    Copyright (c) 2004 Marc Mutz <mutz@kde.org>
+
+    KMime is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License, version 2, as
+    published by the Free Software Foundation.
+
+    KMime is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of this library with any edition of
+    the Qt library by Trolltech AS, Norway (or with modified versions
+    of Qt that use the same license as Qt), and distribute linked
+    combinations including the two.  You must obey the GNU General
+    Public License in all respects for all of the code used other than
+    Qt.  If you modify this file, you may extend this exception to
+    your version of the file, but you are not obligated to do so.  If
+    you do not wish to do so, delete this exception statement from
+    your version.
+*/
+
+#ifndef __KMIME_CODEC_IDENTITY_H__
+#define __KMIME_CODEC_IDENTITY_H__
+
+#include "kmime_codecs.h"
+
+namespace KMime {
+
+class IdentityCodec : public Codec {
+protected:
+  friend class Codec;
+  IdentityCodec() : Codec() {}
+
+public:
+  ~IdentityCodec() {}
+
+  QByteArray encode( const QByteArray & src, bool withCRLF ) const;
+  QCString encodeToQCString( const QByteArray & src, bool withCRLF ) const;
+  QByteArray decode( const QByteArray & src, bool withCRLF ) const;
+
+  int maxEncodedSizeFor( int insize, bool withCRLF ) const {
+    if ( withCRLF )
+      return 2 * insize;
+    else
+      return insize;
+  }
+
+  int maxDecodedSizeFor( int insize, bool withCRLF ) const {
+    if ( withCRLF )
+      return 2 * insize;
+    else
+      return insize;
+  }
+
+  Encoder * makeEncoder( bool withCRLF=false ) const;
+  Decoder * makeDecoder( bool withCRLF=false ) const;
+};
+
+class SevenBitCodec : public IdentityCodec {
+protected:
+  friend class Codec;
+  SevenBitCodec() : IdentityCodec() {}
+
+public:
+  ~SevenBitCodec() {}
+
+  const char * name() const { return "7bit"; }
+};
+
+class EightBitCodec : public IdentityCodec {
+protected:
+  friend class Codec;
+  EightBitCodec() : IdentityCodec() {}
+
+public:
+  ~EightBitCodec() {}
+
+  const char * name() const { return "8bit"; }
+};
+
+class BinaryCodec : public IdentityCodec {
+protected:
+  friend class Codec;
+  BinaryCodec() : IdentityCodec() {}
+
+public:
+  ~BinaryCodec() {}
+
+  const char * name() const { return "binary"; }
+
+  int maxEncodedSizeFor( int insize, bool ) {
+    return insize;
+  }
+  int maxDecodedSizeFor( int insize, bool ) const {
+    return insize;
+  }
+
+  QCString encodeToQCString( const QByteArray &, bool ) const {
+    return QCString();
+  }
+
+};
+
+} // namespace KMime
+
+#endif // __KMIME_CODEC_IDENTITY_H__