On Apr 5, 2024, at 2:22 PM, ron minnich <rminnich@gmail.com> wrote:

not so much what I want, I'm curious about ideas people have about implementing it that I would not think of.

On Fri, Apr 5, 2024 at 1:38 PM Gorka Guardiola <paurea@gmail.com> wrote:

Hmm sorry. Now I see what you want. Not to rewalk. You can use the chan of the dirfd and walk just the remainder cloning it and creating a new one. That way the openat provides the guarantees you want.

On Fri, Apr 5, 2024, 22:15 Gorka Guardiola <paurea@gmail.com> wrote:

I mean, if you want a new syscall jus copy or call the implementation of these.

On Fri, Apr 5, 2024, 22:12 Gorka Guardiola <paurea@gmail.com> wrote:

¿Isn't that fd2path, strcat and open?

Or am I misunderstanding something?

On Fri, Apr 5, 2024, 21:51 ron minnich <rminnich@gmail.com> wrote:

One of the folks I worked with, when we pulled a big chunk of plan 9 into akaros, commented that he had implemented openat on akaros. 

I don't want this to turn into a debate on the merits of openat; I am more curious: if you went to implement openat on Plan 9, how would you go about it? I have a few ideas but I'm more interested in your ideas.

Thanks