uvwasi accepts malformed path containing null byte #265
Description
Calling path_open in uvwasi with a path that contains null byte does not error. Here's an example:
fn main() {
unsafe {
let bytes = [18u8, 110u8, 0];
let path = String::from_utf8(bytes.to_vec()).unwrap();
let fd = wasi::path_open(
3,
0,
&path,
wasi::OFLAGS_CREAT | wasi::OFLAGS_EXCL | wasi::OFLAGS_TRUNC,
wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE | wasi::RIGHTS_FD_SEEK,
0,
wasi::FDFLAGS_APPEND | wasi::FDFLAGS_NONBLOCK,
)
.unwrap();
eprintln!("fd: {errno}");
}
}This Rust example depends on wasi crate v0.11.
On other runtimes, this example fails with inval. But Node succeeds, creating a file with a 2-byte filename.