kernel features MIB

[John Baldwin]

On Thursday 27 December 2007 05:04:44 pm John Baldwin wrote:
> At work we don't have a pretty API for this at all, but I'm thinking for 
> FreeBSD we can do this:
> 
> FEATURE(foo, "description of foo")
> 
> which is a macro to create the 'kern.features.foo' node and set it to 1.  Then 
> we could have a routine in libc:
> 
> int	feature_present(const char *name);
> 
> That returns a boolean to indicate if a given feature is present or not by 
> invoking sysctlbyname(3), etc.
> 
> Any objections to the idea?

So here's a bikeshed question I have no idea for.  Which header should
feature_present()'s prototype go in?  I anticipate this routine being
used in libc itself, so I don't think it can go into libutil.

-- 
John Baldwin