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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2013-01-27 01:04:16 -0600
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2013-01-27 01:04:16 -0600
commit5159cd2beb2e87806a5b54e9991b7895285c9d3e (patch)
tree9b70e8be47a390f8f4d56ead812ab0c9dad88709 /kioslave/gzip/kgzipfilter.cpp
parentc17cb900dcf52b8bd6dc300d4f103392900ec2b4 (diff)
downloadtdelibs-5159cd2beb2e87806a5b54e9991b7895285c9d3e.tar.gz
tdelibs-5159cd2beb2e87806a5b54e9991b7895285c9d3e.zip
Rename a number of libraries and executables to avoid conflicts with KDE4
Diffstat (limited to 'kioslave/gzip/kgzipfilter.cpp')
-rw-r--r--kioslave/gzip/kgzipfilter.cpp336
1 files changed, 0 insertions, 336 deletions
diff --git a/kioslave/gzip/kgzipfilter.cpp b/kioslave/gzip/kgzipfilter.cpp
deleted file mode 100644
index 375f9f9bc..000000000
--- a/kioslave/gzip/kgzipfilter.cpp
+++ /dev/null
@@ -1,336 +0,0 @@
-/* This file is part of the KDE libraries
- Copyright (C) 2000 David Faure <faure@kde.org>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License version 2 as published by the Free Software Foundation.
-
- This library 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public License
- along with this library; see the file COPYING.LIB. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
-*/
-
-#include "kgzipfilter.h"
-#include <time.h>
-#include <zlib.h>
-#include <kdebug.h>
-#include <klibloader.h>
-
-/* gzip flag byte */
-#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */
-#define HEAD_CRC 0x02 /* bit 1 set: header CRC present */
-#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
-#define COMMENT 0x10 /* bit 4 set: file comment present */
-#define RESERVED 0xE0 /* bits 5..7: reserved */
-
-
-// #define DEBUG_GZIP
-
-class KGzipFilterFactory : public KLibFactory
-{
-public:
- KGzipFilterFactory() : KLibFactory() {}
- ~KGzipFilterFactory(){}
- TQObject *createObject( TQObject *parent, const char *name, const char*className, const TQStringList & args )
- {
- Q_UNUSED(parent);
- Q_UNUSED(name);
- Q_UNUSED(className);
- Q_UNUSED(args);
- return new KGzipFilter;
- }
-};
-
-K_EXPORT_COMPONENT_FACTORY( kgzipfilter, KGzipFilterFactory )
-
-// Not really necessary anymore, now that this is a dynamically-loaded lib.
-class KGzipFilter::KGzipFilterPrivate
-{
-public:
- z_stream zStream;
- bool bCompressed;
-};
-
-KGzipFilter::KGzipFilter()
-{
- d = new KGzipFilterPrivate;
- d->zStream.zalloc = (alloc_func)0;
- d->zStream.zfree = (free_func)0;
- d->zStream.opaque = (voidpf)0;
-}
-
-
-KGzipFilter::~KGzipFilter()
-{
- delete d;
-}
-
-void KGzipFilter::init( int mode )
-{
- d->zStream.next_in = Z_NULL;
- d->zStream.avail_in = 0;
- if ( mode == IO_ReadOnly )
- {
- int result = inflateInit2(&d->zStream, -MAX_WBITS); // windowBits is passed < 0 to suppress zlib header
- if ( result != Z_OK )
- kdDebug(7005) << "inflateInit returned " << result << endl;
- // No idea what to do with result :)
- } else if ( mode == IO_WriteOnly )
- {
- int result = deflateInit2(&d->zStream, Z_DEFAULT_COMPRESSION, Z_DEFLATED, -MAX_WBITS, 8, Z_DEFAULT_STRATEGY); // same here
- if ( result != Z_OK )
- kdDebug(7005) << "deflateInit returned " << result << endl;
- } else {
- kdWarning(7005) << "KGzipFilter: Unsupported mode " << mode << ". Only IO_ReadOnly and IO_WriteOnly supported" << endl;
- }
- m_mode = mode;
- d->bCompressed = true;
- m_headerWritten = false;
-}
-
-void KGzipFilter::terminate()
-{
- if ( m_mode == IO_ReadOnly )
- {
- int result = inflateEnd(&d->zStream);
- if ( result != Z_OK )
- kdDebug(7005) << "inflateEnd returned " << result << endl;
- } else if ( m_mode == IO_WriteOnly )
- {
- int result = deflateEnd(&d->zStream);
- if ( result != Z_OK )
- kdDebug(7005) << "deflateEnd returned " << result << endl;
- }
-}
-
-
-void KGzipFilter::reset()
-{
- if ( m_mode == IO_ReadOnly )
- {
- int result = inflateReset(&d->zStream);
- if ( result != Z_OK )
- kdDebug(7005) << "inflateReset returned " << result << endl;
- } else if ( m_mode == IO_WriteOnly ) {
- int result = deflateReset(&d->zStream);
- if ( result != Z_OK )
- kdDebug(7005) << "deflateReset returned " << result << endl;
- m_headerWritten = false;
- }
-}
-
-bool KGzipFilter::readHeader()
-{
-#ifdef DEBUG_GZIP
- kdDebug(7005) << "KGzipFilter::readHeader avail=" << d->zStream.avail_in << endl;
-#endif
- // Assume not compressed until we successfully decode the header
- d->bCompressed = false;
- // Assume the first block of data contains the whole header.
- // The right way is to build this as a big state machine which
- // is a pain in the ass.
- // With 8K-blocks, we don't risk much anyway.
- Bytef *p = d->zStream.next_in;
- int i = d->zStream.avail_in;
- if ((i -= 10) < 0) return false; // Need at least 10 bytes
-#ifdef DEBUG_GZIP
- kdDebug(7005) << "KGzipFilter::readHeader first byte is " << TQString::number(*p,16) << endl;
-#endif
- if (*p++ != 0x1f) return false; // GZip magic
-#ifdef DEBUG_GZIP
- kdDebug(7005) << "KGzipFilter::readHeader second byte is " << TQString::number(*p,16) << endl;
-#endif
- if (*p++ != 0x8b) return false;
- int method = *p++;
- int flags = *p++;
- if ((method != Z_DEFLATED) || (flags & RESERVED) != 0) return false;
- p += 6;
- if ((flags & EXTRA_FIELD) != 0) // skip extra field
- {
- if ((i -= 2) < 0) return false; // Need at least 2 bytes
- int len = *p++;
- len += (*p++) << 8;
- if ((i -= len) < 0) return false; // Need at least len bytes
- p += len;
- }
- if ((flags & ORIG_NAME) != 0) // skip original file name
- {
-#ifdef DEBUG_GZIP
- kdDebug(7005) << "ORIG_NAME=" << p << endl;
-#endif
- while( (i > 0) && (*p))
- {
- i--; p++;
- }
- if (--i <= 0) return false;
- p++;
- }
- if ((flags & COMMENT) != 0) // skip comment
- {
- while( (i > 0) && (*p))
- {
- i--; p++;
- }
- if (--i <= 0) return false;
- p++;
- }
- if ((flags & HEAD_CRC) != 0) // skip the header crc
- {
- if ((i-=2) < 0) return false;
- p += 2;
- }
-
- d->zStream.avail_in = i;
- d->zStream.next_in = p;
- d->bCompressed = true;
-#ifdef DEBUG_GZIP
- kdDebug(7005) << "header OK" << endl;
-#endif
- return true;
-}
-
-/* Output a 16 bit value, lsb first */
-#define put_short(w) \
- *p++ = (uchar) ((w) & 0xff); \
- *p++ = (uchar) ((ushort)(w) >> 8);
-
-/* Output a 32 bit value to the bit stream, lsb first */
-#define put_long(n) \
- put_short((n) & 0xffff); \
- put_short(((ulong)(n)) >> 16);
-
-bool KGzipFilter::writeHeader( const TQCString & fileName )
-{
- Bytef *p = d->zStream.next_out;
- int i = d->zStream.avail_out;
- *p++ = 0x1f;
- *p++ = 0x8b;
- *p++ = Z_DEFLATED;
- *p++ = ORIG_NAME;
- put_long( time( 0L ) ); // Modification time (in unix format)
- *p++ = 0; // Extra flags (2=max compress, 4=fastest compress)
- *p++ = 3; // Unix
-
- uint len = fileName.length();
- for ( uint j = 0 ; j < len ; ++j )
- *p++ = fileName[j];
- *p++ = 0;
- int headerSize = p - d->zStream.next_out;
- i -= headerSize;
- Q_ASSERT(i>0);
- m_crc = crc32(0L, Z_NULL, 0);
- d->zStream.next_out = p;
- d->zStream.avail_out = i;
- m_headerWritten = true;
- return true;
-}
-
-void KGzipFilter::writeFooter()
-{
- Q_ASSERT( m_headerWritten );
- if (!m_headerWritten) kdDebug() << kdBacktrace();
- Bytef *p = d->zStream.next_out;
- int i = d->zStream.avail_out;
- //kdDebug(7005) << "KGzipFilter::writeFooter writing CRC= " << TQString::number( m_crc, 16 ) << endl;
- put_long( m_crc );
- //kdDebug(7005) << "KGzipFilter::writing writing totalin= " << d->zStream.total_in << endl;
- put_long( d->zStream.total_in );
- i -= p - d->zStream.next_out;
- d->zStream.next_out = p;
- d->zStream.avail_out = i;
-}
-
-void KGzipFilter::setOutBuffer( char * data, uint maxlen )
-{
- d->zStream.avail_out = maxlen;
- d->zStream.next_out = (Bytef *) data;
-}
-void KGzipFilter::setInBuffer( const char * data, uint size )
-{
-#ifdef DEBUG_GZIP
- kdDebug(7005) << "KGzipFilter::setInBuffer avail_in=" << size << endl;
-#endif
- d->zStream.avail_in = size;
- d->zStream.next_in = (Bytef*) data;
-}
-int KGzipFilter::inBufferAvailable() const
-{
- return d->zStream.avail_in;
-}
-int KGzipFilter::outBufferAvailable() const
-{
- return d->zStream.avail_out;
-}
-
-KGzipFilter::Result KGzipFilter::uncompress_noop()
-{
- // I'm not sure we really need support for that (uncompressed streams),
- // but why not, it can't hurt to have it. One case I can think of is someone
- // naming a tar file "blah.tar.gz" :-)
- if ( d->zStream.avail_in > 0 )
- {
- int n = (d->zStream.avail_in < d->zStream.avail_out) ? d->zStream.avail_in : d->zStream.avail_out;
- memcpy( d->zStream.next_out, d->zStream.next_in, n );
- d->zStream.avail_out -= n;
- d->zStream.next_in += n;
- d->zStream.avail_in -= n;
- return OK;
- } else
- return END;
-}
-
-KGzipFilter::Result KGzipFilter::uncompress()
-{
- Q_ASSERT ( m_mode == IO_ReadOnly );
- if ( d->bCompressed )
- {
-#ifdef DEBUG_GZIP
- kdDebug(7005) << "Calling inflate with avail_in=" << inBufferAvailable() << " avail_out=" << outBufferAvailable() << endl;
- kdDebug(7005) << " next_in=" << d->zStream.next_in << endl;
-#endif
- int result = inflate(&d->zStream, Z_SYNC_FLUSH);
-#ifdef DEBUG_GZIP
- kdDebug(7005) << " -> inflate returned " << result << endl;
- kdDebug(7005) << "Now avail_in=" << inBufferAvailable() << " avail_out=" << outBufferAvailable() << endl;
- kdDebug(7005) << " next_in=" << d->zStream.next_in << endl;
-#else
- if ( result != Z_OK && result != Z_STREAM_END )
- kdDebug(7005) << "Warning: inflate() returned " << result << endl;
-#endif
- return ( result == Z_OK ? OK : ( result == Z_STREAM_END ? END : ERROR ) );
- } else
- return uncompress_noop();
-}
-
-KGzipFilter::Result KGzipFilter::compress( bool finish )
-{
- Q_ASSERT ( d->bCompressed );
- Q_ASSERT ( m_mode == IO_WriteOnly );
-
- Bytef* p = d->zStream.next_in;
- ulong len = d->zStream.avail_in;
-#ifdef DEBUG_GZIP
- kdDebug(7005) << " calling deflate with avail_in=" << inBufferAvailable() << " avail_out=" << outBufferAvailable() << endl;
-#endif
- int result = deflate(&d->zStream, finish ? Z_FINISH : Z_NO_FLUSH);
- if ( result != Z_OK && result != Z_STREAM_END )
- kdDebug(7005) << " deflate returned " << result << endl;
- if ( m_headerWritten )
- {
- //kdDebug(7005) << "Computing CRC for the next " << len - d->zStream.avail_in << " bytes" << endl;
- m_crc = crc32(m_crc, p, len - d->zStream.avail_in);
- }
- if ( result == Z_STREAM_END && m_headerWritten )
- {
- //kdDebug(7005) << "KGzipFilter::compress finished, write footer" << endl;
- writeFooter();
- }
- return ( result == Z_OK ? OK : ( result == Z_STREAM_END ? END : ERROR ) );
-}