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diff --git a/libkmime/kmime_codecs.cpp b/libkmime/kmime_codecs.cpp
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+/* -*- c++ -*-
+ kmime_codecs.cpp
+
+ This file is part of KMime, the KDE internet mail/usenet news message library.
+ Copyright (c) 2001-2002 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.
+*/
+
+#include "kmime_codecs.h"
+#include "kmime_util.h"
+
+#include "kmime_codec_base64.h"
+#include "kmime_codec_qp.h"
+#include "kmime_codec_uuencode.h"
+#include "kmime_codec_identity.h"
+
+#include <kdebug.h>
+
+#include <qcstring.h>
+#include <kstaticdeleter.h>
+
+#include <cassert>
+#include <cstring>
+
+using namespace KMime;
+
+namespace KMime {
+
+// global list of KMime::Codec's
+QAsciiDict<Codec>* Codec::all = 0;
+static KStaticDeleter<QAsciiDict<Codec> > sdAll;
+#if defined(QT_THREAD_SUPPORT)
+QMutex* Codec::dictLock = 0;
+static KStaticDeleter<QMutex> sdDictLock;
+#endif
+
+void Codec::fillDictionary() {
+
+ all->setAutoDelete(true);
+
+ //all->insert( "7bit", new SevenBitCodec() );
+ //all->insert( "8bit", new EightBitCodec() );
+ all->insert( "base64", new Base64Codec() );
+ all->insert( "quoted-printable", new QuotedPrintableCodec() );
+ all->insert( "b", new Rfc2047BEncodingCodec() );
+ all->insert( "q", new Rfc2047QEncodingCodec() );
+ all->insert( "x-kmime-rfc2231", new Rfc2231EncodingCodec() );
+ all->insert( "x-uuencode", new UUCodec() );
+ //all->insert( "binary", new BinaryCodec() );
+
+}
+
+Codec * Codec::codecForName( const char * name ) {
+#if defined(QT_THREAD_SUPPORT)
+ if ( !dictLock )
+ sdDictLock.setObject( dictLock, new QMutex );
+ dictLock->lock(); // protect "all"
+#endif
+ if ( !all ) {
+ sdAll.setObject( all, new QAsciiDict<Codec>( 11, false /* case-insensitive */) );
+ fillDictionary();
+ }
+ Codec * codec = (*all)[ name ];
+#if defined(QT_THREAD_SUPPORT)
+ dictLock->unlock();
+#endif
+
+ if ( !codec )
+ kdDebug() << "Unknown codec \"" << name << "\" requested!" << endl;
+
+ return codec;
+}
+
+Codec * Codec::codecForName( const QCString & name ) {
+ return codecForName( name.data() );
+}
+
+bool Codec::encode( const char* & scursor, const char * const send,
+ char* & dcursor, const char * const dend,
+ bool withCRLF ) const
+{
+ // get an encoder:
+ Encoder * enc = makeEncoder( withCRLF );
+ assert( enc );
+
+ // encode and check for output buffer overflow:
+ while ( !enc->encode( scursor, send, dcursor, dend ) )
+ if ( dcursor == dend ) {
+ delete enc;
+ return false; // not enough space in output buffer
+ }
+
+ // finish and check for output buffer overflow:
+ while ( !enc->finish( dcursor, dend ) )
+ if ( dcursor == dend ) {
+ delete enc;
+ return false; // not enough space in output buffer
+ }
+
+ // cleanup and return:
+ delete enc;
+ return true; // successfully encoded.
+}
+
+QByteArray Codec::encode( const QByteArray & src, bool withCRLF ) const
+{
+ // allocate buffer for the worst case:
+ QByteArray result( maxEncodedSizeFor( src.size(), withCRLF ) );
+
+ // set up iterators:
+ QByteArray::ConstIterator iit = src.begin();
+ QByteArray::ConstIterator iend = src.end();
+ QByteArray::Iterator oit = result.begin();
+ QByteArray::ConstIterator oend = result.end();
+
+ // encode
+ if ( !encode( iit, iend, oit, oend, withCRLF ) )
+ kdFatal() << name() << " codec lies about it's mEncodedSizeFor()"
+ << endl;
+
+ // shrink result to actual size:
+ result.truncate( oit - result.begin() );
+
+ return result;
+}
+
+QCString Codec::encodeToQCString( const QByteArray & src, bool withCRLF ) const
+{
+ // allocate buffer for the worst case (remember to add one for the trailing NUL)
+ QCString result( maxEncodedSizeFor( src.size(), withCRLF ) + 1 );
+
+ // set up iterators:
+ QByteArray::ConstIterator iit = src.begin();
+ QByteArray::ConstIterator iend = src.end();
+ QByteArray::Iterator oit = result.begin();
+ QByteArray::ConstIterator oend = result.end() - 1;
+
+ // encode
+ if ( !encode( iit, iend, oit, oend, withCRLF ) )
+ kdFatal() << name() << " codec lies about it's mEncodedSizeFor()"
+ << endl;
+
+ // shrink result to actual size:
+ result.truncate( oit - result.begin() );
+
+ return result;
+}
+
+QByteArray Codec::decode( const QByteArray & src, bool withCRLF ) const
+{
+ // allocate buffer for the worst case:
+ QByteArray result( maxDecodedSizeFor( src.size(), withCRLF ) );
+
+ // set up iterators:
+ QByteArray::ConstIterator iit = src.begin();
+ QByteArray::ConstIterator iend = src.end();
+ QByteArray::Iterator oit = result.begin();
+ QByteArray::ConstIterator oend = result.end();
+
+ // decode
+ if ( !decode( iit, iend, oit, oend, withCRLF ) )
+ kdFatal() << name() << " codec lies about it's maxDecodedSizeFor()"
+ << endl;
+
+ // shrink result to actual size:
+ result.truncate( oit - result.begin() );
+
+ return result;
+}
+
+bool Codec::decode( const char* & scursor, const char * const send,
+ char* & dcursor, const char * const dend,
+ bool withCRLF ) const
+{
+ // get a decoder:
+ Decoder * dec = makeDecoder( withCRLF );
+ assert( dec );
+
+ // decode and check for output buffer overflow:
+ while ( !dec->decode( scursor, send, dcursor, dend ) )
+ if ( dcursor == dend ) {
+ delete dec;
+ return false; // not enough space in output buffer
+ }
+
+ // finish and check for output buffer overflow:
+ while ( !dec->finish( dcursor, dend ) )
+ if ( dcursor == dend ) {
+ delete dec;
+ return false; // not enough space in output buffer
+ }
+
+ // cleanup and return:
+ delete dec;
+ return true; // successfully encoded.
+}
+
+// write as much as possible off the output buffer. Return true if
+// flushing was complete, false if some chars could not be flushed.
+bool Encoder::flushOutputBuffer( char* & dcursor, const char * const dend ) {
+ int i;
+ // copy output buffer to output stream:
+ for ( i = 0 ; dcursor != dend && i < mOutputBufferCursor ; ++i )
+ *dcursor++ = mOutputBuffer[i];
+
+ // calculate the number of missing chars:
+ int numCharsLeft = mOutputBufferCursor - i;
+ // push the remaining chars to the begin of the buffer:
+ if ( numCharsLeft )
+ qmemmove( mOutputBuffer, mOutputBuffer + i, numCharsLeft );
+ // adjust cursor:
+ mOutputBufferCursor = numCharsLeft;
+
+ return !numCharsLeft;
+}
+
+
+} // namespace KMime
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