Subject: Re: Leaked handles on Windows

Re: Leaked handles on Windows

From: Yang Tse <yangsita_at_gmail.com>
Date: Wed, 13 May 2009 13:27:18 +0200

2009/5/13, Daniel Stenberg wrote:

> (http://support.microsoft.com/default.aspx?scid=kb;en-us;836769)

Quoting the above link...

> This problem may occur when the following conditions are both true:
>
> Your program uses LoadLibrary calls and FreeLibrary calls to load
> and to unload the Iphlpapi.dll file.
>
> A handle to the TCP/IP driver is not closed correctly when the
> Iphlpapi.dll file is unloaded.

I can make all sort of assumtions on what the second condition means,
but I really don't know what it actually means.

Since the get_iphlpapi_dns_info() function does not open nor close
'handles to the TCP/IP driver', whatever that means, in between the
calls to LoadLibrary and FreeLibrary. Why on earth does
GetNetworkParams() leak a handle?

I fear the conditions mentioned above do not represent reality, and
actually a different set of conditions are the ones that apply.

Ugh!

-- 
-=[Yang]=-
Received on 2009-05-13