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Mail Archives: cygwin-apps/2001/04/22/12:11:49

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Date: Sun, 22 Apr 2001 09:25:00 -0400
From: Earnie Boyd <earnie_boyd AT yahoo DOT com>
Reply-To: Cygwin Apps <cygwin-apps AT cygwin DOT com>
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To: Corinna Vinschen <cygwin-apps AT cygwin DOT com>
Subject: Re: ash stdin mode is set to O_TEXT
References: <11216876326 DOT 20010421202556 AT logos-m DOT ru> <20010421131957 DOT B4033 AT redhat DOT com> <20010422135957 DOT O15499 AT cygbert DOT vinschen DOT de>

Corinna Vinschen wrote:
> 
> On Sat, Apr 21, 2001 at 01:19:57PM -0400, Christopher Faylor wrote:
> > On Sat, Apr 21, 2001 at 08:25:56PM +0400, egor duda wrote:
> > >ash stdin mode is set to O_TEXT, so it's impossible to checkin/chechout
> > >binary files from cvs when CVS_RSH is sh script.
> > >
> > >maybe O_TEXT should be set only in interactive mode?  or shouldn't be
> > >set at all?
> >
> > Corinna and I have discussed this in the past.  The problem is that the
> > 'read' command should always be text mode whether it is interactive or
> > not.  Also, if sh is reading a shell script via:
> >
> > sh < foo
> >
> > the input should be in O_TEXT mode.
> >
> > But then, if ash is reading from a pipe, stdin should, IMO, be in binary
> > mode.
> 
> That's really tricky:
> 
>         sh < foo                O_TEXT?
>         cat foo | sh            O_BINARY?
> 

Correct, and from what I remember of the bash code it knows when it's
about to read/write from/to a pipe/redirect.  Wouldn't you just use the
appropriate setmode on the duplicated file handle?

Earnie.

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