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/*
xconsole widget for KDM
Copyright (C) 2002-2003 Oswald Buddenhagen <ossi@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <config.h>
#ifdef WITH_KDM_XCONSOLE
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/ioctl.h>
#ifdef HAVE_TERMIOS_H
/* for HP-UX (some versions) the extern C is needed, and for other
platforms it doesn't hurt */
extern "C" {
#include <termios.h>
}
#endif
#if !defined(__osf__)
#ifdef HAVE_TERMIO_H
/* needed at least on AIX */
#include <termio.h>
#endif
#endif
#if defined (_HPUX_SOURCE)
#define _TERMIOS_INCLUDED
#include <bsdtty.h>
#endif
#include "kconsole.h"
#include "kdmconfig.h"
#include "kdm_greet.h"
#include <klocale.h>
#include <kpty.h>
#include <qsocketnotifier.h>
KConsole::KConsole( QWidget *_parent )
: inherited( _parent )
, pty( 0 )
, notifier( 0 )
, fd( -1 )
{
setReadOnly( true );
setWordWrap( NoWrap );
setTextFormat( PlainText );
if (!OpenConsole())
append( i18n("Cannot open console") );
}
KConsole::~KConsole()
{
CloseConsole();
}
int
KConsole::OpenConsole()
{
#ifdef TIOCCONS
static const char on = 1;
#endif
if (*_logSource) {
if ((fd = open( _logSource, O_RDONLY | O_NONBLOCK )) >= 0)
goto gotcon;
LogError( "Cannot open log source %s, "
"falling back to /dev/console.\n", _logSource );
}
pty = new KPty;
if (!pty->open()) {
delete pty;
pty = 0;
return 0;
}
#ifdef TIOCCONS
if (ioctl( pty->slaveFd(), TIOCCONS, &on ) < 0) {
perror( "ioctl TIOCCONS" );
delete pty;
pty = 0;
return 0;
}
#else
int consfd;
if ((consfd = open( "/dev/console", O_RDONLY )) < 0) {
perror( "opening /dev/console" );
delete pty;
pty = 0;
return 0;
}
if (ioctl( consfd, SRIOCSREDIR, slave_fd ) < 0) {
perror( "ioctl SRIOCSREDIR" );
::close( consfd );
delete pty;
pty = 0;
return 0;
}
::close( consfd );
#endif
fd = pty->masterFd();
gotcon:
notifier = new QSocketNotifier( fd, QSocketNotifier::Read, this );
connect( notifier, SIGNAL(activated( int )), SLOT(slotData()) );
return 1;
}
void
KConsole::CloseConsole()
{
delete notifier;
notifier = 0;
if (pty) {
delete pty;
pty = 0;
} else
::close( fd );
fd = -1;
}
void
KConsole::slotData()
{
int n;
char buffer[1024];
if ((n = read( fd, buffer, sizeof(buffer) )) <= 0) {
CloseConsole();
if (!n)
if (!OpenConsole())
append( i18n("\n*** Cannot open console log source ***") );
} else {
bool as = !verticalScrollBar()->isVisible() ||
(verticalScrollBar()->value() ==
verticalScrollBar()->maxValue());
QString str( QString::fromLocal8Bit( buffer, n ).remove( '\r' ) );
int pos, opos;
for (opos = 0; (pos = str.find( '\n', opos )) >= 0; opos = pos + 1) {
if (paragraphs() == 100)
removeParagraph( 0 );
if (!leftover.isEmpty()) {
append( leftover + str.mid( opos, pos - opos ) );
leftover = QString::null;
} else
append( str.mid( opos, pos - opos ) );
}
leftover += str.mid( opos );
if (as)
scrollToBottom();
}
}
#include "kconsole.moc"
#endif
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