> > > Indeed, that's definitly a bug. Quick patch attached. It
> > does appear
> > > to work, but there may be a better way?
> >
> > This patch introduces a security hole because an attacker could
> > create, say, a suitable symlink between the time the name
> is generated
> > and the file is opened.
>
> Good point. I guess what I need to do is use open()
> specifying O_CREATE, and then fdopen() that file.
>
> Question: Is the use of O_TEMPORARY to open() portable? (my
> win32 docs say it will make the file automatically deleted
> when the last descriptor is closed, which I didn't know
> before. That would make the patch much simpler, but might
> require #ifdefs?)
Actually, since I'm running out the door, here is a new attempt that
changes behaviour only on win32. And that also appears to work, but may
be wrong ;-)
//Magnus