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Message-ID: <52FAD730.9090507@redhat.com>
Date: Tue, 11 Feb 2014 19:06:40 -0700
From: Eric Blake <eblake@redhat.com>
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To: cygwin@cygwin.com
Subject: Re: get rid of getpwent? (Was: cygwin-1.7.28 getpwent header declaration changes ?)
References: <52F339CA.5070305@gmail.com> <20140206090117.GD2821@calimero.vinschen.de> <52F361C5.3000807@gmail.com> <20140206141321.GI2821@calimero.vinschen.de> <52F40208.5030901@etr-usa.com> <20140207094917.GN2821@calimero.vinschen.de> <52F4E540.2010606@tiscali.co.uk> <52F51D19.6080807@etr-usa.com> <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>
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On 02/11/2014 05:06 PM, Warren Young wrote:
> On 2/11/2014 16:25, David Stacey wrote:
>> getpwent() is called in three different places.
>=20
> To those of you who have investigated these code paths: do any of them
> look like they couldn't be replaced by getpwnam() or other calls that
> would let cygwin1.dll do single-record AD/SAM lookups, rather than
> whole-table/tree scans?
>=20
> That is, do any of these programs really need to visit every record in
> /etc/passwd?

libreadline wants to know how to tab-complete ~foo; to do that, it has
to find all usernames beginning with foo.  How would you do that without
visiting every single record?

--=20
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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