Re: [9front] Re: [PATCH] make exportfs give "standard" error for file does exist

[Anthony Martin <ality@pbrane.org>]

ori@eigenstate.org once said:
> note, the problem with strstr is that walking to a file named
> 'file does not exist' may confuse the caller; this is why I
> would like to move to a convention where the "well known" error
> is at a well known location.

1. Spaces in file names are suspect to begin with.

2. If you name a file "file does not exist", you deserve
the consequences.

3. Almost two decades ago, ericvh wanted to standardize
error strings to appease Linux v9fs. Nothing happened.

4. Over a decade ago, rminnich proposed using "%d:%s"
with a prefixed errno for all errors, mostly to appease
Linux v9fs. Nothing happened.

5. All of this only matters because the POSIX tolerators
are trying to parse error strings to make up an "error
code" and do something special for each one so v9fs will
work with vfs_create. How can that ever not be brittle?

6. 9p2000.L, .u, etc. Enough said.

7. This is a lost cause. Outside of Plan 9, friends only
let friends use emu(1).

8. Your idea isn't bad but is it worth it?

Thanks for coming to my TED talk.

Cheers,
  Anthony