[RFC] perfuse permission checks

[manu%netbsd.org@localhost (Emmanuel Dreyfus)]

Hello

I just commited code in libperfuse to check permissions on various file
operations. On each operation comes weird questions such as "do I need
r-x on the parent directory, or just --x?". While I attempted to
experiment around it, I am pretty sure there are bugs left behind. 

Anyone can review the code? It is in src/lib/libperfuse/ops.c
(search for calls to no_access)

-- 
Emmanuel Dreyfus
http://hcpnet.free.fr/pubz
manu%netbsd.org@localhost