iceweasel-oai 4150a2c205 Add bounded environment transport for MXC launch requests (#44626) ...

## Why

Sandbox policies can exceed Windows command-line limits. Provide an environment transport for these larger MXC launch requests.

## What changed

- Make `MxcCommand` serializable and add JSON encoding and decoding through `CODEX_MXC_LAUNCH_*` environment variables.
- Split payloads into UTF-8-safe chunks of at most 4,096 bytes, with a 1,000,000-byte payload limit and at most 256 chunks.
- Reject malformed or duplicate transport entries and remove all transport variables during decoding, including on failure. Preserve unrelated environment variables.

## Testing

Add tests for large Unicode and escaped-argument round trips, stale variable removal, malformed transport rejection and cleanup, and oversized payload rejection without modifying the environment.

GitOrigin-RevId: 0e5ae2535ef313985a95eb8a5fd4884974dfb1eb

2026-09-10 19:29:54 +00:00

..

src

Add bounded environment transport for MXC launch requests (#44626)

2026-09-10 19:29:54 +00:00

BUILD.bazel

Add a native Windows MXC sandbox adapter (#42841)

2026-09-04 20:09:04 +00:00

Cargo.toml

Add bounded environment transport for MXC launch requests (#44626)

2026-09-10 19:29:54 +00:00