Re: kernel features MIB

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
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