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/*
smpppdsearcher.h
Copyright (c) 2004-2006 by Heiko Schaefer <heiko@rangun.de>
Kopete (c) 2002-2006 by the Kopete developers <kopete-devel@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; version 2 of the License. *
* *
*************************************************************************
*/
#include <tqregexp.h>
#include <tqfile.h>
#include <kprocess.h>
#include <kdebug.h>
#include "smpppdclient.h"
#include "smpppdsearcher.h"
SMPPPDSearcher::SMPPPDSearcher()
: m_cancelSearchNow(FALSE),
m_procIfconfig(NULL),
m_procNetstat(NULL) {}
SMPPPDSearcher::~SMPPPDSearcher() {
delete m_procIfconfig;
delete m_procNetstat;
}
/*!
\fn SMPPPDSearcher::searchNetwork() const
*/
void SMPPPDSearcher::searchNetwork() {
kdDebug(14312) << k_funcinfo << endl;
// the first point to search is localhost
if(!scan("127.0.0.1", "255.0.0.0")) {
m_procNetstat = new KProcess;
m_procNetstat->setEnvironment("LANG", "C"); // we want to force english output
*m_procNetstat << "/bin/netstat" << "-rn";
connect(m_procNetstat, TQT_SIGNAL(receivedStdout(KProcess *,char *,int)), this, TQT_SLOT(slotStdoutReceivedNetstat(KProcess *,char *,int)));
if(!m_procNetstat->start(KProcess::Block, KProcess::Stdout)) {
kdDebug(14312) << k_funcinfo << "Couldn't execute /sbin/netstat -rn" << endl << "Perhaps the package net-tools isn't installed." << endl;
emit smpppdNotFound();
}
delete m_procNetstat;
m_procNetstat = NULL;
}
}
/*!
\fn SMPPPDSearcher::slotStdoutReceived(KProcess * proc, char * buf, int len)
*/
void SMPPPDSearcher::slotStdoutReceivedIfconfig(KProcess * /* proc */, char * buf, int len) {
kdDebug(14312) << k_funcinfo << endl;
TQString myBuf = TQString::fromLatin1(buf,len);
TQRegExp rex("^[ ]{10}.*inet addr:([0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}).*Mask:([0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3})");
// tokenize the string into lines
TQStringList toks = TQStringList::split("\n", myBuf);
for(TQStringList::size_type i = 0; i < toks.count(); i++) {
if(rex.exactMatch(toks[i])) {
if(scan(rex.cap(1), rex.cap(2))) {
return;
}
}
}
emit smpppdNotFound();
}
void SMPPPDSearcher::slotStdoutReceivedNetstat(KProcess * /* proc */, char * buf, int len) {
kdDebug(14312) << k_funcinfo << endl;
TQRegExp rexGW(".*\\n0.0.0.0[ ]*([0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}).*");
TQString myBuf = TQString::fromLatin1(buf,len);
if(!(rexGW.exactMatch(myBuf) && scan(rexGW.cap(1), "255.255.255.255"))) {
// if netstat -r found no gateway we search the network
m_procIfconfig = new KProcess;
m_procIfconfig->setEnvironment("LANG", "C"); // we want to force english output
*m_procIfconfig << "/sbin/ifconfig";
connect(m_procIfconfig, TQT_SIGNAL(receivedStdout(KProcess *,char *,int)), this, TQT_SLOT(slotStdoutReceivedIfconfig(KProcess *,char *,int)));
if(!m_procIfconfig->start(KProcess::Block, KProcess::Stdout)) {
kdDebug(14312) << k_funcinfo << "Couldn't execute /sbin/ifconfig" << endl << "Perhaps the package net-tools isn't installed." << endl;
emit smpppdNotFound();
}
delete m_procIfconfig;
m_procIfconfig = NULL;
}
}
/*!
\fn SMPPPDSearcher::scan() const
*/
bool SMPPPDSearcher::scan(const TQString& ip, const TQString& mask) {
kdDebug(14312) << k_funcinfo << "Scanning " << ip << "/" << mask << "..." << endl;
SMPPPD::Client client;
if(ip == "127.0.0.1") { // if localhost, we only scan this one host
if(client.connect(ip, 3185)) {
client.disconnect();
emit smpppdFound(ip);
return true;
}
return false;
}
uint min_range = 0;
uint max_range = 255;
// calculate ip range (only last mask entry)
TQRegExp lastRex("([0-9]{1,3})\\.([0-9]{1,3})\\.([0-9]{1,3})\\.([0-9]{1,3})");
if(lastRex.exactMatch(ip)) {
uint lastWordIP = lastRex.cap(4).toUInt();
TQStringList ipToks;
for(int i = 1; i < 5; i++) {
ipToks.push_back(lastRex.cap(i));
}
if(lastRex.exactMatch(mask)) {
uint lastWordMask = lastRex.cap(4).toUInt();
if(lastWordMask == 0) {
kdDebug(14312) << k_funcinfo << "IP-Range: " << ipToks[0] << "." << ipToks[1] << "." << ipToks[2] << ".0 - " << ipToks[0] << "." << ipToks[1] << "." << ipToks[2] << ".255" << endl;
max_range = 255;
} else if(lastWordMask == 255) {
min_range = max_range = lastWordIP;
} else {
kdDebug(14312) << k_funcinfo << "IP-Range: " << ipToks[0] << "." << ipToks[1] << "." << ipToks[2] << ".0 - " << ipToks[0] << "." << ipToks[1] << "." << ipToks[2] << "." << lastWordMask << endl;
max_range = lastWordMask;
}
}
uint range = max_range - min_range;
m_cancelSearchNow = FALSE;
if(range > 1) {
emit scanStarted(max_range);
}
for(uint i = min_range; i <= max_range; i++) {
if(m_cancelSearchNow) {
if(range > 1) {
emit scanFinished();
}
break;
}
if(range > 1) {
emit scanProgress(i);
}
if(client.connect(TQString(ipToks[0] + "." + ipToks[1] + "." + ipToks[2] + "." + TQString::number(i)), 3185)) {
client.disconnect();
emit smpppdFound(ip);
if(range > 1) {
emit scanFinished();
}
return true;
}
#ifndef NDEBUG
else {
kdDebug(14312) << k_funcinfo << "No smpppd found at " << TQString(ipToks[0] + "." + ipToks[1] + "." + ipToks[2] + "." + TQString::number(i)) << endl;
}
#endif
}
if(range > 1) {
emit scanFinished();
}
}
return false;
}
#include "smpppdsearcher.moc"
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