Date: Tue, 17 Oct 2000 00:09:26 +0100 From: David Malone <dwmalone@maths.tcd.ie> To: Alfred Perlstein <bright@wintelcom.net> Cc: hackers@freebsd.org, bde@freebsd.org Subject: Re: readv manpage != UIO_MAXIOV Message-ID: <20001017000926.A52976@walton.maths.tcd.ie> In-Reply-To: <20001016150017.T272@fw.wintelcom.net>; from bright@wintelcom.net on Mon, Oct 16, 2000 at 03:00:17PM -0700 References: <20001016150017.T272@fw.wintelcom.net>
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On Mon, Oct 16, 2000 at 03:00:17PM -0700, Alfred Perlstein wrote:
> a) change the kernel to match the docco and possibly breaks
> lotsa stuff?
> b) change the docco to note that although FreeBSD allows
> more than 16 iovecs, it's not recommeneded for portability
> reasons
> c) change readv/writev but provide compat syscalls.
Susv2 man pages say:
iovcnt is valid if greater than 0 and less than or equal to
{IOV_MAX}, defined in <limits.h>
We don't seem to #define IOV_MAX, but we could and them update the
man page to refer to it. It says IOV_MAX must be atleast _XOPEN_IOV_MAX
which is 16.
David.
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