WinPcap with Dev C++

Hey so I have been trying to get the WinPcap libraries to work with Dev C++ for the last couple days and have had no luck. It seems everyone else is having the same problems as I checked the internet and all I seem to find is reports of this problems but no solutions. So I will try to make this as understandable as possible. I installed the appropriate drivers for the libraries. I have saved the contents of the WinPcap libraries into Dev C++'s lib folder. I saved the required includes (.h files) into the the include folder in the Dev C++ directory. I then made some changes to one of the C examples provided, and created a new C++ project. I linked to wpcap.lib and libws2_32.a and then compiled it. Here is the code and error I got.

Code:

#include <pcap.h>

int main()
{
    pcap_if_t *alldevs;
    pcap_if_t *d;
    int i=0;
    char errbuf[PCAP_ERRBUF_SIZE];
    
    /* Retrieve the device list from the local machine */
    if (pcap_findalldevs_ex(PCAP_SRC_IF_STRING, NULL, &alldevs, errbuf) == -1)
    {
        cout << "Error in pcap_findalldevs_ex: %s\n";
        return 0;
    }
    
    /* Print the list */
    for(d= alldevs; d != NULL; d= d->next)
    {
        printf("%d. %s", ++i, d->name);
        if (d->description)
            printf(" (%s)\n", d->description);
        else
            printf(" (No description available)\n");
    }
    
    if (i == 0)
    {
        printf("\nNo interfaces found! Make sure WinPcap is installed.\n");
        return 0;
    }

    /* We don't need any more the device list. Free it */
    pcap_freealldevs(alldevs);

    return 0;
}

Code:

Compiler: Default compiler
Building Makefile: "C:\Users\Scott\Documents\c++ workspace\scoket workspace\syn test v1\Makefile.win"
Executing  make...
make.exe -f "C:\Users\Scott\Documents\c++ workspace\scoket workspace\syn test v1\Makefile.win" all
g++.exe -c main.cpp -o main.o -I"C:/Program_Files/Dev-Cpp/lib/gcc/mingw32/3.4.2/include"  -I"C:/Program_Files/Dev-Cpp/include/c++/3.4.2/backward"  -I"C:/Program_Files/Dev-Cpp/include/c++/3.4.2/mingw32"  -I"C:/Program_Files/Dev-Cpp/include/c++/3.4.2"  -I"C:/Program_Files/Dev-Cpp/include"   

main.cpp: In function `int main()':
main.cpp:11: error: `PCAP_SRC_IF_STRING' undeclared (first use this function)
main.cpp:11: error: (Each undeclared identifier is reported only once for each function it appears in.)
main.cpp:11: error: `pcap_findalldevs_ex' undeclared (first use this function)
main.cpp:13: error: `cout' undeclared (first use this function)

make.exe: *** [main.o] Error 1

Execution terminated

For some reason it isn't registering that certain functions are in the library. I also linked to libwpcap.a just to be sure but nothing changed. Also I know there are other errors in the code I.E. me not defining any standard libraries but this is just to illustrate a point and get the problem fixed im actually just using these select functions in a much bigger project and just posted this as a quick demo. Any thoughts?

Don't copy any library files to include/lib directories, instead, add search directories.
Dev C++ is no longer supported, and the MinGW version that is shipped with this IDE is old and outdated. The best choice for MinGW is CodeBlocks IMO.

I had a look at my old WinPcap project, and noticed that there is a #define preceding the inclusion of <pcap.h>:

#include <winsock2.h>
#include <ws2tcpip.h>
#include <windows.h>

#pragma option push -pc
#define HAVE_REMOTE
#include <pcap.h>
#pragma option pop

Add #define HAVE_REMOTE before <pcap.h> and check if it works. The example you provided is broken or incomplete, cout is in std:: namespace.

Yes I appoligze for the poor example I quickly ported something from C and did a terrible job. Anyways thank you for providing that information, would it save me a lot of time and effort if I just used visual studios 2010 C++ compiler instead? I am a student and have a pfree MSDN license are the libraries supported by Visual C++?

Yes they are supported. It all depends what you want to write and whether you pay attention to portability.

Hey so I finally got around to downloading Visual Studios 2010 just a couple questions on using it with the WinPcap libraries. What are the default directories in which I need to place the WinPcap .lib and .h files and what exactly do I need to add as additional dependencies?