File indexing completed on 2024-04-21 04:50:12

 /*
     SPDX-FileCopyrightText: 1998-2008 Sebastian Trueg <trueg@k3b.org>
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "k3blsofwrapper.h"
 
 #include "k3bdevice.h"
 #include "k3bglobals.h"
 
 #include <KProcess>
 
 #include <QFile>
 #include <QFileInfo>
 #include <QList>
 
 #include <sys/types.h>
 #include <unistd.h>
 
 static K3b::LsofWrapper::Process createProcess( const QString& name, int pid )
 {
     K3b::LsofWrapper::Process p;
     p.name = name;
     p.pid = pid;
     return p;
 }
 
 
 class K3b::LsofWrapper::Private
 {
 public:
     QList<Process> apps;
     QString lsofBin;
 };
 
 
 K3b::LsofWrapper::LsofWrapper()
 {
     d = new Private;
 }
 
 
 K3b::LsofWrapper::~LsofWrapper()
 {
     delete d;
 }
 
 
 bool K3b::LsofWrapper::checkDevice( K3b::Device::Device* dev )
 {
     d->apps.clear();
 
     if( !findLsofExecutable() )
         return false;
 
     // run lsof
     KProcess p;
     p.setOutputChannelMode( KProcess::OnlyStdoutChannel );
 
     //
     // We use the following output form:
     // p<PID>
     // c<COMMAND_NAME>
     //
     p << d->lsofBin << "-Fpc" << dev->blockDeviceName();
     p.start();
 
     if( !p.waitForFinished( -1 ) )
         return false;
 
     //
     // now process its output
     const QStringList l = QString::fromLocal8Bit( p.readAllStandardOutput() ).split( '\n', Qt::SkipEmptyParts );
     QStringList::ConstIterator it = l.constBegin();
     while ( it != l.constEnd() ) {
         int pid = it->mid(1).toInt();
 
         if ( ++it != l.constEnd() ) {
             QString app = it->mid( 1 );
 
             qDebug() << "(K3b::LsofWrapper) matched: app: " << app << " pid: " << pid;
 
             // we don't care about ourselves using the device ;)
             if( pid != (int)::getpid() )
                 d->apps.append( createProcess( app, pid ) );
 
             ++it;
         }
     }
 
     return true;
 }
 
 
 const QList<K3b::LsofWrapper::Process>& K3b::LsofWrapper::usingApplications() const
 {
     return d->apps;
 }
 
 
 bool K3b::LsofWrapper::findLsofExecutable()
 {
     if( d->lsofBin.isEmpty() )
         d->lsofBin = K3b::findExe( "lsof" );
 
     return !d->lsofBin.isEmpty();
 }