[ECOS] Re: fopen() with 'w+' does not set O_CREAT

[Kelvin Lawson <klawson at ad-holdings dot co dot uk>]

Hi Andrew,

Thanks for the response. I've sent a proposed fix to the patch list:
http://ecos.sourceware.org/ml/ecos-patches/2004-03/msg00069.html

Cheers,
Kelvin.


Andrew Lunn wrote:

> On Wed, Mar 24, 2004 at 04:18:37PM +0000, Kelvin Lawson wrote:
>
> > Hi All,
> >
> > I believe the mode settings have been implemented incorrectly for 
> > fopen(). If a file is opened 'w+', it should have O_CREAT set:
> >
> >       w+     Open  for reading and writing.  The file is created
> >              if it does not exist, otherwise  it  is  truncated.
> >              The  stream  is  positioned at the beginning of the
> >              file.
> >
> > However fopen() only sets O_RDWR, without O_CREAT. This is because w+ is 
> > translated to CYG_STREAM_READWRITE by process_mode(), which is 
> > translated to O_RDWR by cyg_stdio_open().
> >
> > This was mentioned on the list a while ago but didn't seem to have any 
> > response:
> > http://sources.redhat.com/ml/ecos-discuss/2002-11/msg00333.html
> >
> > Have I missed something here ? If not I'll send a patch.
>
>
> Please send a patch.
>
>        Thanks
>           Andrew



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