* Initial support for securing tty I/O. * Update the tests. * Fix warnings * Update crates/wasi-common/src/fdentry.rs Co-Authored-By: Jakub Konka <jakub.konka@golem.network> * Properly sandbox stderr. * Document why the scratch buffer is 4 elements long. * Update crates/wasi-common/src/sandboxed_tty_writer.rs Co-Authored-By: Jakub Konka <jakub.konka@golem.network> * Update crates/wasi-common/src/sandboxed_tty_writer.rs Co-Authored-By: Jakub Konka <jakub.konka@golem.network> * Add comments explaining how we report the number of bytes written. * Always sanitize stderr. * Port the changes to the snapshot_0 directory. * Fix snapshot_0 compilation error. * Replace the scratch buffer with a temporary buffer. * Update crates/wasi-common/src/sandboxed_tty_writer.rs Co-Authored-By: bjorn3 <bjorn3@users.noreply.github.com> * Format with latest stable rustfmt. Co-authored-by: Jakub Konka <kubkon@jakubkonka.com> Co-authored-by: bjorn3 <bjorn3@users.noreply.github.com>