Fixing xvif(4) names, yet again

[Jean-Yves Migeon <jeanyves.migeon%free.fr@localhost>]

Dear all,

Some of you already know that having dots in interface names causes 
problems, especially for the creation of their sysctl nodes, as well as 
rc.d/network parsing. AFAIK, only xvif(4) interfaces are concerned.

In an attempt to fix this, I moved to the xvifX.Y to xvifX-Y 
convention. Sadly, in a lack of exhaustiveness from me, I missed the 
problem with the ifconfig_xxN variables from rc.conf(5), as reported by 
Taylor [1]. Given that xxN has to be constructed from chars acceptable 
in shell variables names, only ASCII letters and underscore '_'. can be 
accepted.

Without tweaking the whole rc(8) system (/etc/rc.conf being parsed as a 
shell script), the only possible solution is to move to xvifX_Y 
notation. Is it acceptable? I'd like to get this done before -6; it's 
rather a trivial fix.

Thanks!

[1] http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=39376

--
Jean-Yves Migeon
jeanyves.migeon%free.fr@localhost