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/***************************************************************************
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kiso.cpp
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-------------------
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begin : Oct 25 2002
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copyright : (C) 2002 by Szombathelyi Gy<47>gy
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email : gyurco@users.sourceforge.net
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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/* This file is heavily based on ktar.cpp from kdelibs (c) David Faure */
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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#include <grp.h>
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#include <pwd.h>
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#include <assert.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <qcstring.h>
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#include <qdir.h>
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#include <qfile.h>
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#include <kdebug.h>
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#include <kurl.h>
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#include <kmimetype.h>
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#include <kconfig.h>
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#include <kfilterdev.h>
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#include <kfilterbase.h>
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#include "kiso.h"
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#include "libisofs/isofs.h"
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#include "qfilehack.h"
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#ifdef __linux__
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#undef __STRICT_ANSI__
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#include <linux/cdrom.h>
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#define __STRICT_ANSI__
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#include <sys/ioctl.h>
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#include <fcntl.h>
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#endif
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////////////////////////////////////////////////////////////////////////
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/////////////////////////// KIso ///////////////////////////////////
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////////////////////////////////////////////////////////////////////////
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/**
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* puts the track layout of the device 'fname' into 'tracks'
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* tracks structure: start sector, track number, ...
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* tracks should be 100*2 entry long (this is the maximum in the CD-ROM standard)
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* currently it's linux only, porters are welcome
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*/
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static int getTracks(const char *fname,int *tracks) {
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int ret=0;
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memset(tracks,0,200*sizeof(int));
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#ifdef __linux__
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int fd,i;
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struct cdrom_tochdr tochead;
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struct cdrom_tocentry tocentry;
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kdDebug() << "getTracks open:" << fname << endl;
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fd=open(fname, O_RDONLY | O_NONBLOCK);
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if (fd > 0) {
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if (ioctl(fd,CDROMREADTOCHDR,&tochead)!=-1) {
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kdDebug() << "getTracks first track:" << tochead.cdth_trk0
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<< " last track " << tochead.cdth_trk1 << endl;
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for (i=tochead.cdth_trk0;i<=tochead.cdth_trk1;i++) {
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if (ret>99) break;
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memset(&tocentry,0,sizeof(struct cdrom_tocentry));
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tocentry.cdte_track=i;
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tocentry.cdte_format=CDROM_LBA;
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if (ioctl(fd,CDROMREADTOCENTRY,&tocentry)<0) break;
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kdDebug() << "getTracks got track " << i << " starting at: " <<
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tocentry.cdte_addr.lba << endl;
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if ((tocentry.cdte_ctrl & 0x4) == 0x4) {
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tracks[ret<<1]=tocentry.cdte_addr.lba;
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tracks[(ret<<1)+1]=i;
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ret++;
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}
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}
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}
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close(fd);
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}
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#endif
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return ret;
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}
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class KIso::KIsoPrivate
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{
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public:
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KIsoPrivate() {}
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QStringList dirList;
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};
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KIso::KIso( const QString& filename, const QString & _mimetype )
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: KArchive( 0L )
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{
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m_startsec = -1;
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m_filename = filename;
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d = new KIsoPrivate;
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QString mimetype( _mimetype );
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bool forced = true;
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if ( mimetype.isEmpty() )
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{
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mimetype = KMimeType::findByFileContent( filename )->name();
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kdDebug() << "KIso::KIso mimetype=" << mimetype << endl;
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// Don't move to prepareDevice - the other constructor theoretically allows ANY filter
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if ( mimetype == "application/x-tgz" || mimetype == "application/x-targz" || // the latter is deprecated but might still be around
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mimetype == "application/x-webarchive" )
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// that's a gzipped tar file, so ask for gzip filter
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mimetype = "application/x-gzip";
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else if ( mimetype == "application/x-tbz" ) // that's a bzipped2 tar file, so ask for bz2 filter
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mimetype = "application/x-bzip2";
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else
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{
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// Something else. Check if it's not really gzip though (e.g. for KOffice docs)
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QFile file( filename );
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if ( file.open( IO_ReadOnly ) )
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{
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unsigned char firstByte = file.getch();
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unsigned char secondByte = file.getch();
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unsigned char thirdByte = file.getch();
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if ( firstByte == 0037 && secondByte == 0213 )
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mimetype = "application/x-gzip";
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else if ( firstByte == 'B' && secondByte == 'Z' && thirdByte == 'h' )
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mimetype = "application/x-bzip2";
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else if ( firstByte == 'P' && secondByte == 'K' && thirdByte == 3 )
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{
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unsigned char fourthByte = file.getch();
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if ( fourthByte == 4 )
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mimetype = "application/x-zip";
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}
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}
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}
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forced = false;
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}
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prepareDevice( filename, mimetype, forced );
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}
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void KIso::prepareDevice( const QString & filename,
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const QString & mimetype, bool forced )
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{
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/* 'hack' for Qt's false assumption that only S_ISREG is seekable */
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if( "inode/blockdevice" == mimetype )
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setDevice( new QFileHack( filename ) );
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else
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{
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if( "application/x-gzip" == mimetype
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|| "application/x-bzip2" == mimetype)
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forced = true;
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QIODevice *dev = KFilterDev::deviceForFile( filename, mimetype, forced );
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if( dev )
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setDevice( dev );
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}
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}
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KIso::KIso( QIODevice * dev )
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: KArchive( dev )
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{
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d = new KIsoPrivate;
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}
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KIso::~KIso()
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{
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// mjarrett: Closes to prevent ~KArchive from aborting w/o device
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if( isOpened() )
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close();
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if ( !m_filename.isEmpty() )
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delete device(); // we created it ourselves
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delete d;
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}
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/* callback function for libisofs */
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static int readf(char *buf, int start, int len,void *udata) {
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QIODevice* dev = ( static_cast<KIso*> (udata) )->device();
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if (dev->at(start<<11)) {
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if ((dev->readBlock(buf, len<<11)) != -1) return (len);
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}
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kdDebug() << "KIso::ReadRequest failed start: " << start << " len: " << len << endl;
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return -1;
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}
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/* callback function for libisofs */
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static int mycallb(struct iso_directory_record *idr,void *udata) {
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KIso *iso = static_cast<KIso*> (udata);
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QString path,user,group,symlink;
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int i;
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int access;
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int time,cdate,adate;
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rr_entry rr;
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bool special=false;
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KArchiveEntry *entry=NULL,*oldentry=NULL;
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char z_algo[2],z_params[2];
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int z_size=0;
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if ((idr->flags[0] & 1) && !iso->showhidden) return 0;
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if (iso->level) {
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if (isonum_711(idr->name_len)==1) {
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switch (idr->name[0]) {
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case 0:
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path+=(".");
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special=true;
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break;
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case 1:
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path+=("..");
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special=true;
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break;
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}
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}
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if (iso->showrr && ParseRR(idr,&rr)>0) {
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if (!special) path=rr.name;
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symlink=rr.sl;
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access=rr.mode;
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time=rr.t_mtime;
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adate=rr.t_atime;
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cdate=rr.t_ctime;
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user.setNum(rr.uid);
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group.setNum(rr.gid);
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z_algo[0]=rr.z_algo[0];z_algo[1]=rr.z_algo[1];
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z_params[0]=rr.z_params[0];z_params[1]=rr.z_params[1];
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z_size=rr.z_size;
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} else {
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access=iso->dirent->permissions() & ~S_IFMT;
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adate=cdate=time=isodate_915(idr->date,0);
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user=iso->dirent->user();
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group=iso->dirent->group();
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if (idr->flags[0] & 2) access |= S_IFDIR; else access |= S_IFREG;
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if (!special) {
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if (iso->joliet) {
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for (i=0;i<(isonum_711(idr->name_len)-1);i+=2) {
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QChar ch( be2me_16(*((ushort*)&(idr->name[i]))) );
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if (ch==';') break;
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path+=ch;
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}
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} else {
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for (i=0;i<isonum_711(idr->name_len);i++) {
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if (idr->name[i]==';') break;
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if (idr->name[i]) path+=(idr->name[i]);
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}
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}
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if (path.endsWith(".")) path.setLength(path.length()-1);
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}
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}
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if (iso->showrr) FreeRR(&rr);
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if (idr->flags[0] & 2) {
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entry = new KIsoDirectory( iso, path, access | S_IFDIR, time, adate, cdate,
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user, group, symlink );
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} else {
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entry = new KIsoFile( iso, path, access, time, adate, cdate,
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user, group, symlink, isonum_733(idr->extent)<<11,isonum_733(idr->size) );
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if (z_size) (static_cast <KIsoFile*> (entry))->setZF(z_algo,z_params,z_size);
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}
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iso->dirent->addEntry(entry);
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}
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if ( (idr->flags[0] & 2) && (iso->level==0 || !special) ) {
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if (iso->level) {
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oldentry=iso->dirent;
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iso->dirent=static_cast<KIsoDirectory*> (entry);
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}
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iso->level++;
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ProcessDir(&readf,isonum_733(idr->extent),isonum_733(idr->size),&mycallb,udata);
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iso->level--;
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if (iso->level) iso->dirent=static_cast<KIsoDirectory*> (oldentry);
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}
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return 0;
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}
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void KIso::addBoot(struct el_torito_boot_descriptor* bootdesc) {
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int i,size;
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boot_head boot;
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boot_entry *be;
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QString path;
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KIsoFile *entry;
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entry=new KIsoFile( this, "Catalog", dirent->permissions() & ~S_IFDIR,
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dirent->date(), dirent->adate(), dirent->cdate(),
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dirent->user(), dirent->group(), QString::null,
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isonum_731(bootdesc->boot_catalog)<<11, 2048 );
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dirent->addEntry(entry);
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if (!ReadBootTable(&readf,isonum_731(bootdesc->boot_catalog),&boot,this)) {
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i=1;
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be=boot.defentry;
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while (be) {
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size=BootImageSize( isonum_711(((struct default_entry*) be->data)->media),
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isonum_721(((struct default_entry*) be->data)->seccount));
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path="Default Image";
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if (i>1) path += " (" + QString::number(i) + ")";
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entry=new KIsoFile( this, path, dirent->permissions() & ~S_IFDIR,
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dirent->date(), dirent->adate(), dirent->cdate(),
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dirent->user(), dirent->group(), QString::null,
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isonum_731(((struct default_entry*) be->data)->start)<<11, size<<9 );
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dirent->addEntry(entry);
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be=be->next;
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i++;
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}
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FreeBootTable(&boot);
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}
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}
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void KIso::readParams()
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{
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KConfig *config;
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config = new KConfig("kio_isorc");
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showhidden=config->readBoolEntry("showhidden",false);
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showrr=config->readBoolEntry("showrr",true);
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delete config;
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}
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bool KIso::openArchive( int mode )
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{
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iso_vol_desc *desc;
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QString path,tmp,uid,gid;
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struct stat buf;
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int tracks[2*100],trackno=0,i,access,c_b,c_i,c_j;
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KArchiveDirectory *root;
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struct iso_directory_record* idr;
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struct el_torito_boot_descriptor* bootdesc;
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if ( mode == IO_WriteOnly )
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return false;
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readParams();
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d->dirList.clear();
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tracks[0]=0;
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if (m_startsec>0) tracks[0]=m_startsec;
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kdDebug() << " m_startsec: " << m_startsec << endl;
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/* We'll use the permission and user/group of the 'host' file except
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* in Rock Ridge, where the permissions are stored on the file system
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*/
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if (::stat( m_filename.local8Bit(), &buf )<0) {
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/* defaults, if stat fails */
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memset(&buf,0,sizeof(struct stat));
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buf.st_mode=0777;
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} else {
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/* If it's a block device, try to query the track layout (for multisession) */
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if (m_startsec == -1 && S_ISBLK(buf.st_mode))
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trackno=getTracks(m_filename.latin1(),(int*) &tracks);
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}
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uid.setNum(buf.st_uid);
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gid.setNum(buf.st_gid);
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access = buf.st_mode & ~S_IFMT;
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kdDebug() << "KIso::openArchive number of tracks: " << trackno << endl;
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if (trackno==0) trackno=1;
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for (i=0;i<trackno;i++) {
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c_b=1;c_i=1;c_j=1;
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root=rootDir();
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if (trackno>1) {
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path=QString::null;
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QTextOStream(&path) << "Track " << tracks[(i<<1)+1];
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root = new KIsoDirectory( this, path, access | S_IFDIR,
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buf.st_mtime, buf.st_atime, buf.st_ctime, uid, gid, QString::null );
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rootDir()->addEntry(root);
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}
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desc=ReadISO9660(&readf,tracks[i<<1],this);
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if (!desc) {
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kdDebug() << "KIso::openArchive no volume descriptors" << endl;
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continue;
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}
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while (desc) {
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switch (isonum_711(desc->data.type)) {
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case ISO_VD_BOOT:
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bootdesc=(struct el_torito_boot_descriptor*) &(desc->data);
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if ( !memcmp(EL_TORITO_ID,bootdesc->system_id,ISODCL(8,39)) ) {
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path="El Torito Boot";
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if (c_b>1) path += " (" + QString::number(c_b) + ")";
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dirent = new KIsoDirectory( this, path, access | S_IFDIR,
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buf.st_mtime, buf.st_atime, buf.st_ctime, uid, gid, QString::null );
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root->addEntry(dirent);
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addBoot(bootdesc);
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c_b++;
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}
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break;
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case ISO_VD_PRIMARY:
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case ISO_VD_SUPPLEMENTARY:
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idr=(struct iso_directory_record*) &( ((struct iso_primary_descriptor*) &desc->data)->root_directory_record);
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joliet = JolietLevel(&desc->data);
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if (joliet) {
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|
|
QTextOStream(&path) << "Joliet level " << joliet;
|
|
|
if (c_j>1) path += " (" + QString::number(c_j) + ")";
|
|
|
} else {
|
|
|
path = "ISO9660";
|
|
|
if (c_i>1) path += " (" + QString::number(c_i) + ")";
|
|
|
}
|
|
|
dirent = new KIsoDirectory( this, path, access | S_IFDIR,
|
|
|
buf.st_mtime, buf.st_atime, buf.st_ctime, uid, gid, QString::null );
|
|
|
root->addEntry(dirent);
|
|
|
level=0;
|
|
|
mycallb(idr, this );
|
|
|
if (joliet) c_j++; else c_i++;
|
|
|
break;
|
|
|
}
|
|
|
desc=desc->next;
|
|
|
}
|
|
|
free(desc);
|
|
|
}
|
|
|
device()->close();
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
bool KIso::closeArchive()
|
|
|
{
|
|
|
d->dirList.clear();
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
bool KIso::writeDir( const QString&, const QString&, const QString& )
|
|
|
{
|
|
|
return false;
|
|
|
}
|
|
|
|
|
|
bool KIso::prepareWriting( const QString&, const QString&, const QString&, uint)
|
|
|
{
|
|
|
return false;
|
|
|
}
|
|
|
|
|
|
bool KIso::doneWriting( uint )
|
|
|
{
|
|
|
return false;
|
|
|
}
|
|
|
|
|
|
void KIso::virtual_hook( int id, void* data )
|
|
|
{ KArchive::virtual_hook( id, data ); }
|
|
|
|
