* Re: open(2) says O_DIRECTORY is Linux-specific
[not found] ` <CAF52+S5ATj7R-F=ni-S3M7ax4QrfN0wunvchQSuy-cqkYPNyow-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
@ 2014-04-10 19:14 ` Michael Kerrisk (man-pages)
0 siblings, 0 replies; only message in thread
From: Michael Kerrisk (man-pages) @ 2014-04-10 19:14 UTC (permalink / raw)
To: Matthew Dempsky
Cc: mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w,
linux-man-u79uwXL29TY76Z2rM5mHXA
On 04/08/2014 10:14 PM, Matthew Dempsky wrote:
> http://man7.org/linux/man-pages/man2/open.2.html
>
> O_DIRECTORY
> If pathname is not a directory, cause the open to fail. This
> flag is Linux-specific, and was added in kernel version
> 2.1.126, to avoid denial-of-service problems if opendir(3) is
> called on a FIFO or tape device.
>
> The "This flag is Linux-specific" bit is no longer true, since it was
> standardized by POSIX.1-2008 (as mentioned in the "CONFORMING TO"
> section later), and FreeBSD, NetBSD, and OpenBSD all implement it (at
> least according to their man pages). Perhaps saying "This flag was
> Linux-specific until standardized by POSIX.1-2008, and was added in
> ..." would be more accurate?
Hi Matthew,
Thanks for the report. That text is indeed crufty, but all that's needed
is to remove the piece saying that the flag is Linux-speciifc, since
elsewhere in the page it is explained that it is in POSIX.1-2008.
I've simply removed the words "is Linux-specific, and".
Cheers,
Michael
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
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