Re: Shortening an IFS file

[Tim Brown <tim.bronski@xxxxxxxxx>]

I might have read your email too quickly. If you want to clear the contents
of a file before writing back to it then use the open option i suggested.
If you want to keep the contents up to a particular size then use ftruncate.
On Mar 12, 2015 2:40 PM, "Tim Bronski" <tim.bronski@xxxxxxxxx> wrote:

> If you're using open() then you should have O_TRUNC or'ed as a flag.
>
> On 3/12/2015 2:32 PM, MichaelQuigley@xxxxxxxxxx wrote:
>
> > I'm writing a utility to remove some filler data from an IFS file. I'm
> > using the  The utility works great except that when I write the data back
> > to the IFS, there is original data past where I want the new EOF to be. I
> > can't for the life of me figure out how to shorten the file and set a new
> > (shorter) end of file.
> >
> > Any help would be greatly appreciated.
> >
> > Thanks,
> > Michael Quigley
> > Computer Services
> > The Way International
> > www.TheWay.org
>
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