[PATCH] Reset cached offset when reading to end of stream (BZ #17653)

[Andreas Schwab]

Siddhesh Poyarekar <siddhesh@redhat.com> writes:

> diff --git a/libio/wfileops.c b/libio/wfileops.c
> index 71281c1..267b093 100644
> --- a/libio/wfileops.c
> +++ b/libio/wfileops.c
> @@ -268,6 +268,7 @@ _IO_wfile_underflow (fp)
>  	/* There are some bytes in the external buffer but they don't
>  	   convert to anything.  */
>  	__set_errno (EILSEQ);
> +      fp->_offset = _IO_pos_BAD;
>        return WEOF;

For the case of naccbuf != 0 this isn't really EOF, but an error.  No
other error case is resetting _offset.  Also, what about
_IO_wfile_underflow_mmap?

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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