kmwlpd.cpp00001
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00020 #include <config.h>
00021 #include "kmwlpd.h"
00022 #include "kmwizard.h"
00023 #include "kmprinter.h"
00024
00025 #include <kurl.h>
00026 #include <klocale.h>
00027 #include <qlabel.h>
00028 #include <kdebug.h>
00029 #include <qlineedit.h>
00030 #include <kmessagebox.h>
00031 #include <kextsock.h>
00032
00033 static bool checkLpdQueue(const char *host, const char *queue);
00034
00035
00036
00037 KMWLpd::KMWLpd(QWidget *parent, const char *name)
00038 : KMWInfoBase(2,parent,name)
00039 {
00040 m_ID = KMWizard::LPD;
00041 m_title = i18n("LPD Queue Information");
00042 m_nextpage = KMWizard::Driver;
00043
00044 setInfo(i18n("<p>Enter the information concerning the remote LPD queue; "
00045 "this wizard will check it before continuing.</p>"));
00046 setLabel(0,i18n("Host:"));
00047 setLabel(1,i18n("Queue:"));
00048 }
00049
00050 bool KMWLpd::isValid(QString& msg)
00051 {
00052 if (text(0).isEmpty() || text(1).isEmpty())
00053 {
00054 msg = i18n("Some information is missing.");
00055 return false;
00056 }
00057
00058
00059 if (!checkLpdQueue(text(0).latin1(),text(1).latin1()))
00060 {
00061 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)
00062 return false;
00063 }
00064 return true;
00065 }
00066
00067 void KMWLpd::updatePrinter(KMPrinter *p)
00068 {
00069 QString dev = QString::fromLatin1("lpd://%1/%2").arg(text(0)).arg(text(1));
00070 p->setDevice(dev);
00071 }
00072
00073
00074
00075 bool checkLpdQueue(const char *host, const char *queue)
00076 {
00077 KExtendedSocket sock(host, "printer", KExtendedSocket::streamSocket);
00078 sock.setBlockingMode(true);
00079 if (sock.connect() != 0)
00080 return false;
00081
00082 char res[64] = {0};
00083 snprintf(res,64,"%c%s\n",(char)4,queue);
00084 if (sock.writeBlock(res, strlen(res)) != (Q_LONG)(strlen(res)))
00085 return false;
00086
00087 char buf[1024] = {0};
00088 int n, tot(1);
00089 while ((n = sock.readBlock(res, 63)) > 0)
00090 {
00091 res[n] = 0;
00092 tot += n;
00093 if (tot >= 1024)
00094 break;
00095 else
00096 strcat(buf, res);
00097 }
00098 sock.close();
00099 if (strlen(buf) == 0 || strstr(buf, "unknown printer") != NULL)
00100 return false;
00101 return true;
00102 }
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