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Date: Wed, 13 Mar 2019 00:39:55 +0300
From: Andrey Repin <anrdaemon AT yandex DOT ru>
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Message-ID: <1713374829.20190313003955@yandex.ru>
To: Corinna Vinschen <cygwin AT cygwin DOT com>, cygwin AT cygwin DOT com
Subject: Re: Privilege(s) needed to run top command
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Greetings, Corinna Vinschen!

> On Mar 12 23:35, Andrey Repin wrote:
>> Greetings, Corinna Vinschen!
>> 
>> > This was complete nonsense.
>> 
>> > Actually, the problem was entirely in Cygwin's ps.exe, and it's a
>> > long-standing problem at that.
>> 
>> > While the Cygwin DLL collected the complete process list for ps, ps then
>> > didn't print any process it failed to call OpenProcess on.  These are a
>> > *lot* of processes and the result looked a lot like the list of
>> > processes in or connected to the current session.
>> 
>> > The reason for this behaviour was that the image path of a process could
>> > only be fetched when opening the process.  Today I found new
>> > functionality since Vista which allows to fetch the image path without
>> > having to open the process, so `ps -W' will print all processes again,
>> > just as in the good old XP times :}
>> 
>> Err, but why? PSAPI was available since… a long time since.
>> And it is public API except for isolated processes.

> Same problem:

> https://docs.microsoft.com/en-us/windows/desktop/psapi/enumerating-all-processes

My bad. I checked the code on hand, but missed that last OpenProcess call.
My code working with visible windows and, indeed, is unable to catch
elevated window's path.


-- 
With best regards,
Andrey Repin
Wednesday, March 13, 2019 0:37:12

Sorry for my terrible english...
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