cvs commit: src/sbin/ifconfig ifconfig.c src/sys/net if.c if.h
alfred at freebsd.org
Thu Sep 2 04:15:12 PDT 2004
* Ruslan Ermilov <ru at freebsd.org> [040901 23:47] wrote:
> On Wed, Sep 01, 2004 at 01:44:52PM -0700, Alfred Perlstein wrote:
> > * Justin T. Gibbs <gibbs at scsiguy.com> [040901 13:43] wrote:
> > >
> > > > brooks 2004-09-01 18:22:14 UTC
> > > >
> > > > FreeBSD src repository
> > > >
> > > > Modified files:
> > > > sbin/ifconfig ifconfig.c
> > > > sys/net if.c if.h
> > > > Log:
> > > > Use a spare byte in struct if_data to store the structure size without
> > > > increasing it. Add code to ifconfig to use this size to find the
> > > > sockaddr_dl after the struct if_data in the routing message. This
> > > > allows struct if_data to grow (up to 255 bytes) without breaking
> > > > ifconfig.
> > >
> > > You could squeeze out 256 bytes if you treat 0 as meaning 256 - just like
> > > the SCSI protocol.
> > Or treat 0 as "look at some other location for length" of int width. :)
> That wouldn't be backwards compatible, which was the intent.
or 255 or some other escape sequence. :)
- Alfred Perlstein
- Research Engineering Development Inc.
- email: bright at mu.org cell: 408-480-4684
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