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Message-ID: <3975FB88.5A96123E@cygnus.com>
Date: Wed, 19 Jul 2000 21:03:36 +0200
From: Corinna Vinschen <vinschen AT cygnus DOT com>
Reply-To: cygdev <cygwin-developers AT sources DOT redhat DOT com>
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To: cygwin-developers AT sources DOT redhat DOT com
Subject: Re: login-1.3 can't work on the recent snapshots.
References: <s1su2e4mz1d DOT fsf AT jaist DOT ac DOT jp> <s1s7lai5b7i DOT fsf AT jaist DOT ac DOT jp> <20000719141458 DOT D17938 AT cygnus DOT com>
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Chris Faylor wrote:
> 
> On Thu, Jul 20, 2000 at 01:36:17AM +0900, Kazuhiro Fujieda wrote:
> >>>> On 05 Jul 2000 23:28:46 +0900
> >>>> Kazuhiro Fujieda <fujieda AT jaist DOT ac DOT jp> said:
> >
> >> The login-1.3 of the net release seem not to work with the
> >> recent snapshots. I tested it with inetutils-1.3.2-4 under
> >> WinNT4 Sp6a and the latest snapshot.
> >>
> >> When I connected with in.telnetd, I was able to find the
> >> following message. But I couldn't start the remote session,
> >> because bash.exe spawned by login.exe was choked by the system
> >> error of "The application failed to initialize properly (0xc0000022).".
> >
> >I managed to find the cause of this problem.
> >
> >spawn_guts can modify values referred by `child', even though
> >there is a case where `child' == `myself'.
> 
> Is this when spawn_guts is called to 'exec[lv]p?()' something?

I don't understand then, why my impersonation stuff works at all.
All typical applications using that technique are using exec(),
not spawn().

login-1.3 is still using `sexec..()' of course.

Corinna

-- 
Corinna Vinschen
Cygwin Developer
Cygnus Solutions, a Red Hat company