Replace the xcb and xcb-util crates with x11rb. We were using an old version of the xcb crate which had some soundness issue. x11rb doesn't have these issues and generally provides a safer and nicer to use API.
It's possible to use x11rb without linking to xcb at all, using the RustConnection API, but unfortunately we have to use the XCBConnection API (which uses xcb under the hood) due to our use of the xlib GLX API for creating OpenGL contexts. In the future, it might be possible to avoid linking to xlib and xcb by replacing GLX with EGL.
Getting the xlib-xcb integration to work also necessitated upgrading the version of the x11 crate, since the version we were using was missing some necessary functionality that was previously being provided by the xcb crate.
Replace the
xcbandxcb-utilcrates withx11rb. We were using an old version of thexcbcrate which had some soundness issue.x11rbdoesn't have these issues and generally provides a safer and nicer to use API.It's possible to use
x11rbwithout linking to xcb at all, using theRustConnectionAPI, but unfortunately we have to use theXCBConnectionAPI (which uses xcb under the hood) due to our use of the xlib GLX API for creating OpenGL contexts. In the future, it might be possible to avoid linking to xlib and xcb by replacing GLX with EGL.Getting the xlib-xcb integration to work also necessitated upgrading the version of the
x11crate, since the version we were using was missing some necessary functionality that was previously being provided by thexcbcrate.