writev(2) and IOV_MAX confusion

From: Andre Oppermann (andre_at_freebsd.org)
Date: 02/16/04

  • Next message: Max Laier: "Re: PANIC: trap.c" 
    Date: Mon, 16 Feb 2004 11:10:43 +0100
To: freebsd-current@freebsd.org, freebsd-standards@freebsd.org

    The is a big confusion over the correct definition of IOV_MAX in relation
    to writev(2). The man page for write(2)/writev(2) says you only have to
    include <sys/uio.h> to get everything. Unfortunatly IOV_MAX is not (no
    longer?) defined there but in <sys/syslimits.h>. Both Net- and OpenBSD
    still define it in <sys/uio.h> but NetBSD only for compatibility. For
    them the correct place seems to be <sys/syslimits.h> too but only when
    _XOPEN_SOURCE is defined.

    What is the correct place for IOV_MAX? And what has to be adjusted, the
    man page or the .h files? 

    -- 
Andre
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