Date: Wed, 1 Sep 2004 13:44:52 -0700 From: Alfred Perlstein <alfred@freebsd.org> To: "Justin T. Gibbs" <gibbs@scsiguy.com> Cc: src-committers@FreeBSD.org Subject: Re: cvs commit: src/sbin/ifconfig ifconfig.c src/sys/net if.c if.h Message-ID: <20040901204452.GO31434@elvis.mu.org> In-Reply-To: <73F8DDC079929FAA3D43CA2E@caspian.scsiguy.com> References: <200409011822.i81IMERb017602@repoman.freebsd.org> <73F8DDC079929FAA3D43CA2E@caspian.scsiguy.com>
next in thread | previous in thread | raw e-mail | index | archive | help
* Justin T. Gibbs <gibbs@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@mu.org cell: 408-480-4684
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20040901204452.GO31434>