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Date: Tue, 28 Feb 2012 21:39:56 +0100
From: David Sastre Medina <d DOT sastre DOT medina AT gmail DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: 1.7.10/1.7.11: .Net programs started from a cygwin console may fail.
Message-ID: <20120228203956.GD6761@jethro.local.lan>
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On Tue, Feb 28, 2012 at 03:17:54PM +0100, Corinna Vinschen wrote:
> On Feb 28 08:51, Jon Clugston wrote:
> > Just a guess, but it does look suspiciously like the name of an
> > environment variable.  Wasn't there some discussion lately about
> > differing case environment variables ("tmp" as opposed to "TMP")?
>=20
> Dead on, thanks!  The definitions of tmp and temp in /etc/profile result
> in a double definition of the %TMP% and %TEMP% dos variables from the
> .Net applications POV and it's too dumb to handle that gracefully.
>=20
> So the solution is, either we drop the tmp and temp definitions in
> /etc/profile, or old .net apps should be started only after calling
> `unset tmp temp' in bash.
>=20
> Btw., tmp and temp are not preserved this way in tcsh's profile scripts.
> So I'm wondering why we do it in /etc/profile.  Can somebody give me a
> management summary?

A while back (about the 3.x -> 4.x changes in base-files), it was
agreed to unset both TMP and TEMP and set them to /tmp.
A user concerned about the security of files owned by windows native=20
applications started within cygwin, reported that those files were
created with 777 perms under /tmp, making it trivial for other users to
read/copy temps files easily.
The solution proposed, which I included in 4.0-7, was to set temporary
dirs as they are now in /etc/profile.

With regards to tcsh, and apart from /etc/profile.d/*.csh, it doesn't
use any startup file in base-files, as you know it has its own set of=20

/etc/csh.login
/etc/csh.cshrc

and a couple of files under /etc/profile.d (as of 6.18.00-3).
So it is not easy for me to propagate this to tcsh. Regardless, it's probab=
ly=20
my fault not having publicised enough that change to give tcsh, and
probably zsh and mksh (both can use /etc/their-own-startup-profile)
mantainers at least the chance to include it or complain.

If this setting is to be dropped, we'll go back to creating unsecure files
in /tmp under the described scenario (unless some other solution is impleme=
nted).

--=20
Huella de clave primaria: AD8F BDC0 5A2C FD5F A179  60E7 F79B AB04 5299 EC56

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