Memory Leak with IcmpSendEcho ?

From:

Tak Shing <rockports.tak@gmail.com>

Newsgroups:

microsoft.public.vc.language

Date:

Mon, 25 Apr 2011 04:27:05 -0700 (PDT)

Message-ID:

<a93fae68-5fc5-4aeb-9115-c2574e0fe13c@p23g2000prm.googlegroups.com>

Comfused... Please help

I am trying to check the network status in the 'thread' with
IcmpSendEcho function.
Here is my sample code;

// PingLeak.cpp
//

#include "stdafx.h"
#include <stdio.h>
#include <winsock2.h>
#include <iphlpapi.h>
#include <icmpapi.h>
#include <process.h>
#pragma comment(lib, "iphlpapi.lib")
#pragma comment(lib, "ws2_32.lib")

// Thread Stopper
BOOL bStopThread = FALSE;

void SendPing()
{
    char SendData[32] = "SendData";
    const DWORD dwReplySize = (sizeof (ICMP_ECHO_REPLY)) + sizeof
(SendData);

    BYTE* pReplyBuffer = new BYTE[dwReplySize];
    memset(pReplyBuffer, 0, dwReplySize);

    ULONG ipaddr = inet_addr("127.0.0.1");

    HANDLE hIcmpFile = IcmpCreateFile();
    DWORD dwReturn = IcmpSendEcho(hIcmpFile, ipaddr, SendData,
sizeof(SendData), NULL, (LPVOID)pReplyBuffer, dwReplySize, 1000);

    delete [] pReplyBuffer;
    IcmpCloseHandle(hIcmpFile);

    return;
}

unsigned __stdcall PingThreadFunc(void* pArgument)
{
    while (!bStopThread)
    {
        SendPing();
        printf("SendPing\n");
        Sleep(100);
    }

    _endthreadex(0);
    return 0;
}

int _tmain(int argc, _TCHAR* argv[])
{
    DWORD dwThreadId = 0;
    HANDLE hPingThread = (HANDLE)_beginthreadex(NULL, 0, (unsigned int
(__stdcall *)(void *))PingThreadFunc, NULL, 0, (unsigned
int*)&dwThreadId);

    Sleep(3*60*60*1000); // wait for 3 hours

    if (NULL != hPingThread)
    {
        DWORD dwWait = WaitForSingleObject(hPingThread, 20000);
        if (WAIT_OBJECT_0 == dwWait)
            CloseHandle(hPingThread);
    }

    return 0;
}

------------------------------------------

When running this program, PrivateBytes of this process in taskmanager
increase continuously.
I tested running sample for 2 days, but the memory leaking found.
Strange to say, memory leaking repro in Windows 7 only.

I already know some issue that published by Microsoft,
http://support.microsoft.com/kb/2384321

But a example in above page is different with my sample.

Can anyone help me solve this issue ?