Dag Ågren (Mar 07 2021 at 19:43): Dag Ågren (Mar 07 2021 at 19:43):I'm doing a minimal WASI implementation for internal use, and noticing a few things in the spec that are unclear.
Dag Ågren (Mar 07 2021 at 19:44):The current one I am struggling with is fd_prestat_dir_name. I assume it returns a C-style 0-terminated string? That should be made clear if so.
Dag Ågren (Mar 07 2021 at 19:45):Also, what happens if the buffer you pass in is too short for the name?
Dan Gohman (Mar 08 2021 at 15:35):Yeah; this is an area we've not polished a lot, because we expect to switch it to interface types, where we can just say it returns a string
Dan Gohman (Mar 08 2021 at 15:37):It does not return a NUL-terminated string; the length of the string is the pr_name_len field from the prestat_get call
Dan Gohman (Mar 08 2021 at 15:38):If the buffer is too small, I think it's an inval error, iirc.
Last updated: Oct 23 2024 at 20:03 UTC