A way to redirect stdout/stderr to another file _and then back_ would be nice

Question

A way to redirect stdout/stderr to another file _and then back_ would be nice

whitequark opened this issue a year ago · 2 comments

wasi-libc does not have dup2, stdout/stderr are marked const, there is no fdopen equivalent that uses an existing file, and /dev/stdout//dev/stderr are not a thing.

Answer 1 · 2023-07-23T01:49:53.000Z

Actually, it looks like there is __wasi_fd_renumber and it is a part of the public API.

Answer 2 · 2023-07-23T02:42:34.000Z

Yeah, that works.