WebAssembly/wasi-libc

'mkdirat()' ignores the parameter 'mode'

Daksh-10 opened this issue · 2 comments

Daksh-10 commented

When we call mkdirat() it calls mkdir()
https://github.com/WebAssembly/wasi-libc/blob/main/libc-bottom-half/sources/at_fdcwd.c#L47

And 'mkdir()' ignores mode
https://github.com/WebAssembly/wasi-libc/blob/main/libc-bottom-half/sources/posix.c#L221

So, it does take 'mode' parameter from the developer, but it doesn't set the mode for the file.

yamt commented

mkdir/mkdirat takes "mode" because it's a standard api.
it's ignored because wasi doesn't have the corresponding concept.
ie. it's expected.

  • 👍1
Daksh-10 commented

Ok, so while compiling WASM through WASI, we can't change the mode (because of sandbox environment behaviour). So, we should not change the behaviour ?