FIX: Application leaks a handle when you call the CRT _popen function in Visual C++ .NET 2003 (892086)

RESOLUTION

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Visual Studio .NET 2003 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

No prerequisites are required.

Restart requirement

You do not have to restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date         Time   Version            Size    File name
   --------------------------------------------------------------
   03-Feb-2005  02:57                     13,858  A_map.c
   03-Feb-2005  03:27                    363,744  Eh.lib
   03-Feb-2005  02:57                     10,456  Io.h
   06-Feb-2004  19:29                      4,246  Ios.cpp
   03-Feb-2005  03:30                  2,707,628  Libc.lib
   03-Feb-2005  03:34                  3,023,492  Libcd.lib
   03-Feb-2005  03:31                  2,937,528  Libcmt.lib
   03-Feb-2005  03:36                  3,304,810  Libcmtd.lib
   03-Feb-2005  03:30                  3,601,372  Libcp.lib
   03-Feb-2005  03:35                  4,433,774  Libcpd.lib
   03-Feb-2005  03:32                  3,651,664  Libcpmt.lib
   03-Feb-2005  03:36                  4,449,888  Libcpmtd.lib
   03-Feb-2005  04:11  7.10.4353.0       499,712  Msvcp71.dll      
   03-Feb-2005  03:37  7.10.4353.0       765,952  Msvcp71d.dll     
   03-Feb-2005  04:11  7.10.4353.0       348,160  Msvcr71.dll      
   03-Feb-2005  03:37  7.10.4353.0       544,768  Msvcr71d.dll     
   03-Feb-2005  02:58                     17,400  Popen.c
   03-Feb-2005  02:57                      9,948  Read.c
   03-Feb-2005  16:00                    202,240  Vc_user_crt71_rtl_x86_---.msm
   03-Feb-2005  16:00                    151,040  Vc_user_stl71_rtl_x86_---.msm

// Testpopen.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <stdio.h>
#include <conio.h>


int _tmain(int argc, _TCHAR* argv[])
{
	FILE * pPipe = NULL;
	char	buffer[128] = {0};

	while (!kbhit())
	{
		pPipe = _popen("dir *.* /s", "r");

		if (pPipe != NULL)
		{
			printf(_T("Pipe opened at 0x%08x\n"), (unsigned long)pPipe);

			while (!feof(pPipe))
			{
				if (fgets(buffer, 128, pPipe))
					printf(buffer);
			}

			printf("Pipe closed (%d)\n", _pclose(pPipe));			
		}
	}	

	return 0;

}