Including libtins in Qt

Nisha

I included the libtins library in qt by project->add library option
my code looks as follows
samplelibtins.pro...........

#-------------------------------------------------
#
# Project created by QtCreator 2016-11-02T13:03:33
#
#-------------------------------------------------

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = samplelibtins
TEMPLATE = app


SOURCES += main.cpp\
        mainwindow.cpp

HEADERS  += mainwindow.h

FORMS    += mainwindow.ui

LIBS += -ltins\
    -lWs2_32.lib\
     -lIphlpapi.lib
        -lwpcap\
         -lPacket\

win32:CONFIG(release, debug|release): LIBS += -L$$PWD/lib/ -ltins
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/lib/ -ltinsd

INCLUDEPATH += $$PWD/include
DEPENDPATH += $$PWD/include

win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/lib/libtins.a
else:win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/lib/libtinsd.a
else:win32:!win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/lib/tins.lib
else:win32:!win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/lib/tinsd.lib

main.cpp..........

#include "mainwindow.h"
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();

    return a.exec();
}

mainwindow.h.................

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>

#define TINS_STATIC
namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();

private:
    Ui::MainWindow *ui;
};

#endif // MAINWINDOW_H

mainwindow.cpp.....................

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include<include/tins/tins.h>
#include<iostream>

using namespace Tins;

bool callback(const PDU &pdu) {
    const IP &ip = pdu.rfind_pdu<IP>(); // Find the IP layer
    const TCP &tcp = pdu.rfind_pdu<TCP>(); // Find the TCP layer
    std::cout << ip.src_addr() << ':' << tcp.sport() << " -> "
              << ip.dst_addr() << ':' << tcp.dport() << std::endl;
    return true;
}

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
     Sniffer("eth0").sniff_loop(callback);
    ui->setupUi(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}

and when i run this code i get link error as follows:-

mainwindow.obj:-1: error: LNK2019: unresolved external symbol "public: __thiscall Tins::IPv4Address::IPv4Address(unsigned int)" (??0IPv4Address@Tins@@QAE@I@Z) referenced in function "public: class Tins::IPv4Address __thiscall Tins::IP::dst_addr(void)const " (?dst_addr@IP@Tins@@QBE?AVIPv4Address@2@XZ)

mainwindow.obj:-1: error: LNK2019: unresolved external symbol "class std::basic_ostream<char,struct std::char_traits<char> > & __cdecl Tins::operator<<(class std::basic_ostream<char,struct std::char_traits<char> > &,class Tins::IPv4Address const &)" (??6Tins@@YAAAV?$basic_ostream@DU?$char_traits@D@std@@@std@@AAV12@ABVIPv4Address@0@@Z) referenced in function "bool __cdecl callback(class Tins::PDU const &)" (?callback@@YA_NABVPDU@Tins@@@Z)

mainwindow.obj:-1: error: LNK2019: unresolved external symbol "public: virtual __thiscall Tins::BaseSniffer::~BaseSniffer(void)" (??1BaseSniffer@Tins@@UAE@XZ) referenced in function "public: virtual __thiscall Tins::Sniffer::~Sniffer(void)" (??1Sniffer@Tins@@UAE@XZ)

mainwindow.obj:-1: error: LNK2019: unresolved external symbol "public: class Tins::PacketWrapper<class Tins::PDU *,class Tins::Timestamp> __thiscall Tins::BaseSniffer::next_packet(void)" (?next_packet@BaseSniffer@Tins@@QAE?AV?$PacketWrapper@PAVPDU@Tins@@VTimestamp@2@@2@XZ) referenced in function "private: void __thiscall Tins::SnifferIterator::advance(void)" (?advance@SnifferIterator@Tins@@AAEXXZ)

etc.......

can someone help me to resolve this out?

Edit: code tags - p3c0

Nisha

I got the solution for this i just cleared the build and rebuilted the project again and it worked for me:-)

Thank u

Pradeep Kumar

Hi,

So u did clean , then run qmake , then build and run
Which worked for u?.

Thanks,

Nisha

hi,
@Pradeep Kumar

i cleaned the makefiles in the project build folder and then builded the project in debug mode and then run....
but now i find a problem when it is run in release mode the same error as above is appearing on building and runing the project.........

Pradeep Kumar

Hi,

Delete the build folder and then delete pro.user in the project folder,
then use the same way to build in debug and release mode.

Thanks,

XXian

http://libtins.github.io/download/#download
Try to follow the steps on this official page, it should work properly after you finish all the steps.