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141 lines
4.1 KiB
141 lines
4.1 KiB
/***************************************************************************
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* *
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* Copyright (C) 2005 by Kevin Gilbert *
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* kev.gilbert@cdu.edu.au *
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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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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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* *
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***************************************************************************/
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/select.h>
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#include <sys/time.h>
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#include <ntqapplication.h>
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#include <tdelocale.h>
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#include "nmapoutputbuffer.h"
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#include "scanmonitor.h"
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#include "scanmonitorevent.h"
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#include "scanwidget.h"
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// constructor
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// ===========
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ScanMonitor::ScanMonitor( ScanWidget* parent )
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: TQThread( ),
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m_buffer( NULL ),
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m_nmapBufferSize( 16384 ),
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m_parent( parent )
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{ m_buffers.setAutoDelete( true );
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}
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// getBuffer
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// =========
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void ScanMonitor::getBuffer( )
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{ for( m_buffer = m_buffers.first( ); m_buffer != NULL; m_buffer = m_buffers.next( ))
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if( m_buffer->isFree( ))
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{ m_buffer->setBusy( );
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m_buffers.take( );
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m_buffers.append( m_buffer );
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return;
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}
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m_buffer = new NmapOutputBuffer( m_nmapBufferSize );
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m_buffers.append( m_buffer );
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}
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// readNmapOutput
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// ==============
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void ScanMonitor::readNmapOutput( const int pipeFD, const ScanMonitorEventType type )
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{ while( true )
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{ if( m_buffer == NULL )
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getBuffer( );
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else
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m_buffer->setBusy( );
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int bytesRead = ::read( pipeFD, m_buffer->buffer( ), m_nmapBufferSize );
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if( bytesRead > 0 )
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{ m_buffer->length( bytesRead );
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TQApplication::postEvent( m_parent, new ScanMonitorEvent( type, m_buffer ));
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m_buffer = NULL;
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continue;
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}
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if( !bytesRead || errno == EAGAIN || errno == EBADF )
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{ m_buffer->setFree( );
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break;
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}
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TQString text = TQString( i18n( "error reading nmap output from pipe: %2\n" )).arg( strerror( errno ));
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strcpy( m_buffer->buffer( ), text.ascii( ));
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m_buffer->length( text.length( ));
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TQApplication::postEvent( m_parent, new ScanMonitorEvent( StderrType, m_buffer ));
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m_buffer = NULL;
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break;
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}
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}
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// run
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// ===
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void ScanMonitor::run( )
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{ fd_set efds;
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fd_set rfds;
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struct timeval timeout;
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while( true )
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{ FD_ZERO( &efds );
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FD_ZERO( &rfds );
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FD_SET( m_pipeStderrFD, &efds);
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FD_SET( m_pipeStdoutFD, &efds);
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FD_SET( m_pipeStderrFD, &rfds);
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FD_SET( m_pipeStdoutFD, &rfds);
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timeout.tv_sec = 2;
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timeout.tv_usec = 0;
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if( !select( _max_( m_pipeStderrFD, m_pipeStdoutFD ) + 1, &rfds, NULL, &efds, &timeout ))
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continue;
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if( FD_ISSET( m_pipeStderrFD, &efds ) || FD_ISSET( m_pipeStdoutFD, &efds ))
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break;
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if( FD_ISSET( m_pipeStderrFD, &rfds ))
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readNmapOutput( m_pipeStderrFD, StderrType );
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if( FD_ISSET( m_pipeStdoutFD, &rfds ))
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readNmapOutput( m_pipeStdoutFD, StdoutType );
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}
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}
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// setPipeFDs
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// ==========
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void ScanMonitor::setPipeFDs( const int pipeStderrFD, const int pipeStdoutFD )
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{ m_pipeStderrFD = pipeStderrFD;
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m_pipeStdoutFD = pipeStdoutFD;
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}
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