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Initial support for securing tty I/O. (#684)

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* 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>
This commit is contained in:
Dan Gohman
2020-01-02 04:53:26 -06:00
committed by Jakub Konka
parent 1f8921ef09
commit 1d810a5de9
6 changed files with 243 additions and 16 deletions
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crates/wasi-common/src/lib.rs
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@@ -26,6 +26,7 @@ mod error;
mod fdentry;
mod helpers;
mod hostcalls_impl;
mod sandboxed_tty_writer;
mod sys;
#[macro_use]
mod macros;