Re: "ifconfig -vlandev" syntax

From: Yar Tikhiy (yar_at_comp.chem.msu.su)
Date: 09/30/05

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    Date: Fri, 30 Sep 2005 03:33:13 +0400
To: Brooks Davis <brooks@one-eyed-alien.net>

    On Thu, Sep 29, 2005 at 04:15:24PM -0700, Brooks Davis wrote:
    > On Thu, Sep 29, 2005 at 06:23:10PM +0200, Fredrik Lindberg wrote:
    > > Yar Tikhiy wrote:
    > > >On Sun, Sep 25, 2005 at 02:37:41PM -0700, Brooks Davis wrote:
    > > >
    > > >>On Thu, Sep 22, 2005 at 02:41:05PM +0400, Yar Tikhiy wrote:
    > > >>
    > > >>>As our ifconfig(8) is growing more options for special interface
    > > >>>types, inconsistencies sneak into their syntax. In particular,
    > > >>>-vlandev takes a useless argument (vlan(4) cannot attach to more
    > > >>>than one parent anyway) while, e.g., -carpdev doesn't need one.
    > > >>>Personally, I like the latter since having to type unneeded words
    > > >>>on the command line annoys me. Do you think that making -vlandev
    > > >>>need no arguments in CURRENT would break many existing things?
    > > >>
    > > >>I agree the argument is useless. Unfortunatly, it's going to be hard to
    > > >>deprecate the old syntax so we may need to keep it around.
    > > >
    > > >
    > > >Alas, there doesn't seem to exist an easy way to support both
    > > >syntaxes in the ifconfig(8) parameter parser. Perhaps we can
    > > >survive the pain of syntax change in CURRENT only, with a
    > > >heads-up message sent, release notes updated, etc? I wonder
    > > >if many people use "ifconfig -vlandev XXX" in automated tools.
    > > >
    > >
    > > Why not use something simple such as the following (maybe even
    > > without that printf().
    > >
    > > root@genesis> ./ifconfig vlan0 create
    > > root@genesis> ./ifconfig vlan0 vlan 1 vlandev em0
    > > root@genesis> ./ifconfig vlan0 -vlandev
    > > root@genesis> ./ifconfig vlan0 vlan 1 vlandev em0
    > > root@genesis> ./ifconfig vlan0 -vlandev em0
    > > Passing interface to -vlandev is deprecated.
    >
    > Excellent, this is the perfect solution. Let's get something like this
    > committed and MFC'd so it goes out in 6.0.

    Working on this right now... 

    -- 
Yar
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