exporting subr_param values as sysctls

[Paul Saab]

Alfred Perlstein wrote:
> I would like to export the various parameters from subr_param.c
> into sysctl, these nodes would include the names from the following
> tunables as well as others in these files.
> 
>         TUNABLE_ULONG_FETCH("kern.maxtsiz", &maxtsiz);
>         dfldsiz = DFLDSIZ;
>         TUNABLE_ULONG_FETCH("kern.dfldsiz", &dfldsiz);
>         maxdsiz = MAXDSIZ;
>         TUNABLE_ULONG_FETCH("kern.maxdsiz", &maxdsiz);
>         dflssiz = DFLSSIZ;
>         TUNABLE_ULONG_FETCH("kern.dflssiz", &dflssiz);
>         maxssiz = MAXSSIZ;
>         TUNABLE_ULONG_FETCH("kern.maxssiz", &maxssiz);
>         sgrowsiz = SGROWSIZ;
>         TUNABLE_ULONG_FETCH("kern.sgrowsiz", &sgrowsiz);
> 
> any objections?
> 
> I don't see any obvious way to get at these values on a running
> system.

Do it, but you can get them via kenv.. ;)