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Date: Wed, 12 Feb 2014 15:51:29 +0400
From: Andrey Repin <anrdaemon@yandex.ru>
Reply-To: Andrey Repin <cygwin@cygwin.com>
Message-ID: <1514151193.20140212155129@mtu-net.ru>
To: Corinna Vinschen <cygwin@cygwin.com>
Subject: Re: get rid of getpwent? (Was: cygwin-1.7.28 getpwent header declaration changes ?)
In-Reply-To: <20140212090804.GM2821@calimero.vinschen.de>
References: <31347914-BB4F-4039-984B-731B6C72F903@etr-usa.com> <52F7AEC5.5090205@tiscali.co.uk> <8B7B5FE0-7413-4358-BA8A-E0B6E0B17653@etr-usa.com> <52F8B50E.7040307@lysator.liu.se> <52F92D58.9030408@etr-usa.com> <52F95D1D.4050108@tiscali.co.uk> <4510121021.20140211062515@mtu-net.ru> <52FAB14C.8060800@tiscali.co.uk> <52FABAF5.2060701@etr-usa.com> <52FAD730.9090507@redhat.com> <20140212090804.GM2821@calimero.vinschen.de>
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Greetings, Corinna Vinschen!

> Either way, implementing a full getpwent requires to return the local
> users, the users of the primary domain, and the users of all trusted
> domains.  I know of domains with 200K users and there are probably
> bigger ones.  How long should a search take when a user presses <TAB>
> after the ~?  And then, shall the process running the getpwent actually
> cache all of them?  This seems really excessive.

IMO, such practice should be actually discouraged. I mean, listing ALL users
of ALL... well, you got it. For the reasons you mentioned above - the possible
results of such operation are largely unpredictable.


--
WBR,
Andrey Repin (anrdaemon@yandex.ru) 12.02.2014, <15:49>

Sorry for my terrible english...


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