Date: Sun, 3 May 1998 18:42:59 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: Nate Eldredge <nate AT cartsys DOT com>
cc: Andreas Kochenburger <kochenbu AT no DOT spam DOT de>, djgpp AT delorie DOT com
Subject: Re: Bug in djgpp 2.8.0b with open()?
In-Reply-To: <19980429033703.AAF3301@ppp104.cartsys.com>
Message-ID: <Pine.SUN.3.91.980503184236.19706l-100000@is>
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On Tue, 28 Apr 1998, Nate Eldredge wrote:

> >ANSI standard doesn't say anything about the `open' function because 
> >`open' is non-ANSI.
> 
> Okay, to be pedantic...
> 
> What does POSIX say?

About O_RDONLY, O_WRONLY and O_RDWR:

      ...the programmer *must* specify one of these.

About O_TRUNC:

      This flag should be used only on ordinary files open for
      writing.

So it seems to me that using O_TRUNC with no O_WRONLY or O_RDWR is an
error, as far as Posix is concerned.