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Date:	Fri, 11 Jul 2008 09:52:23 +0200
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
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Subject:	Re: programming API to determine whether in 'Cygwin environment'
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On Jul 10 22:32, Yitzchak Scott-Thoennes wrote:
> On Thu, July 10, 2008 10:06 pm, Christopher Faylor wrote:
> > On Thu, Jul 10, 2008 at 08:49:06PM -0700, Tony Last wrote:
> >> My console program is built for native Windows (thus does not reply on
> >> cygwin1.dll).
> >>
> >> So I'm looking for a boolean method which will allow a program to tell
> >> whether it was run from within a Cygwin shell.
> >
> > A PATH containing colons which weren't preceded by just a single
> > alphabetic character would be a clue but it wouldn't be foolproof.  A HOME
> > environment variable with no colons and forward slashes would be another
> > clue.  I don't think there is a foolproof test, though.
> 
> Both HOME and PATH are translated by the time the non-cygwin program
> sees them, though??

$TERM would be set.  That's very unlikely when started from cmd.
$SHELL would be a hint, too.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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