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Re: CVS commit: src/lib/libc/stdio
On Thu, May 06, 2010 at 06:00:45PM +0300, Jukka Ruohonen wrote:
> On Thu, May 06, 2010 at 02:48:32PM +0200, Joerg Sonnenberger wrote:
> > On Thu, May 06, 2010 at 08:51:29AM +0000, David Holland wrote:
> > > On Thu, May 06, 2010 at 08:14:08AM +0000, Jukka Ruohonen wrote:
> > > > Correct the discussion about return values: fileno() may fail and
> > > return -1.
> > > > Note that in such cases the NetBSD implementation does not set errno to
> > > > EBADF, hence diverging from the standard in this small detail.
> > >
> > > How is that not just a bug?
> > -1 is a valid answer for not file-backed FILEs. I don't think it is an
> > error.
> RETURN VALUE
> Upon successful completion, fileno() shall return the integer value of
> the file descriptor associated with stream. Otherwise, the value -1 shall be
> returned and errno set to indicate the error.
> The fileno() function may fail if:
> The stream argument is not a valid stream, or the stream is not
> associated with a file.
> Isn't the above EBADF exactly what you are after?
I don't mind if it sets errno, but I am not sure if POSIX makes a lot of
sense here. But that's just me.
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