cvs commit: src/sbin/ifconfig ifconfig.c src/sys/net if.c if.h

[Alfred Perlstein]

* 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. :)

-- 
- Alfred Perlstein
- Research Engineering Development Inc.
- email: bright at mu.org cell: 408-480-4684