*#include <winsock2.h>
#include <ws2tcpip.h>
//#include <iphlpapi.h>
#include <stdio.h>

#pragma comment(lib, "iphlpapi.lib")

#define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x)) 
#define FREE(x) HeapFree(GetProcessHeap(), 0, (x))

* Note: could also use malloc() and free() 

int main()
{
    PMIB_TCPSTATS pTCPStats;
    DWORD dwRetVal = 0;

    pTCPStats = (MIB_TCPSTATS*) MALLOC (sizeof(MIB_TCPSTATS));
    if (pTCPStats == NULL) {
        printf("Error allocating memory\n");
        return 1;
    }

    if ((dwRetVal = GetTcpStatistics(pTCPStats)) == NO_ERROR) {
      printf("\tActive Opens: %ld\n", pTCPStats->dwActiveOpens);
      printf("\tPassive Opens: %ld\n", pTCPStats->dwPassiveOpens);
      printf("\tSegments Recv: %ld\n", pTCPStats->dwInSegs);
      printf("\tSegments Xmit: %ld\n", pTCPStats->dwOutSegs);
      printf("\tTotal # Conxs: %ld\n", pTCPStats->dwNumConns);
    }
    else {
      printf("GetTcpStatistics failed with error: %ld\n", dwRetVal);
      
      LPVOID lpMsgBuf;
      if (FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | 
        FORMAT_MESSAGE_FROM_SYSTEM | 
        FORMAT_MESSAGE_IGNORE_INSERTS,
        NULL,
        dwRetVal,
        MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
        (LPTSTR) &lpMsgBuf,
        0,
        NULL )) {
        printf("\tError: %s", lpMsgBuf);
      }
      LocalFree( lpMsgBuf );
    }

    if (pTCPStats)
        FREE (pTCPStats);
}*/


