kmwlpd.cpp
/*
* This file is part of the KDE libraries
* Copyright (c) 2001 Michael Goffioul <kdeprint@swing.be>
*
* 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 <config.h>
#include "kmwlpd.h"
#include "kmwizard.h"
#include "kmprinter.h"
#include <kurl.h>
#include <klocale.h>
#include <qlabel.h>
#include <kdebug.h>
#include <qlineedit.h>
#include <kmessagebox.h>
#include <kextsock.h>
static bool checkLpdQueue(const char *host, const char *queue);
//********************************************************************************************************
KMWLpd::KMWLpd(QWidget *parent, const char *name)
: KMWInfoBase(2,parent,name)
{
m_ID = KMWizard::LPD;
m_title = i18n("LPD Queue Information");
m_nextpage = KMWizard::Driver;
setInfo(i18n("<p>Enter the information concerning the remote LPD queue; "
"this wizard will check it before continuing.</p>"));
setLabel(0,i18n("Host:"));
setLabel(1,i18n("Queue:"));
}
bool KMWLpd::isValid(QString& msg)
{
if (text(0).isEmpty() || text(1).isEmpty())
{
msg = i18n("Some information is missing.");
return false;
}
// check LPD queue
if (!checkLpdQueue(text(0).latin1(),text(1).latin1()))
{
if (KMessageBox::warningContinueCancel(this, i18n("Cannot find queue %1 on server %2; do you want to continue anyway?").arg(text(1)).arg(text(0))) == KMessageBox::Cancel)
return false;
}
return true;
}
void KMWLpd::updatePrinter(KMPrinter *p)
{
QString dev = QString::fromLatin1("lpd://%1/%2").arg(text(0)).arg(text(1));
p->setDevice(dev);
}
//*******************************************************************************************************
bool checkLpdQueue(const char *host, const char *queue)
{
KExtendedSocket sock(host, "printer", KExtendedSocket::streamSocket);
sock.setBlockingMode(true);
if (sock.connect() != 0)
return false;
char res[64] = {0};
snprintf(res,64,"%c%s\n",(char)4,queue);
if (sock.writeBlock(res, strlen(res)) != (Q_LONG)(strlen(res)))
return false;
char buf[1024] = {0};
int n, tot(1);
while ((n = sock.readBlock(res, 63)) > 0)
{
res[n] = 0;
tot += n;
if (tot >= 1024)
break;
else
strcat(buf, res);
}
sock.close();
if (strlen(buf) == 0 || strstr(buf, "unknown printer") != NULL)
return false;
return true;
}

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