build_id

Obtain a Uuid uniquely representing the build of the current binary.

This is intended to be used to check that different processes are indeed invocations of identically laid out binaries.

As such:

It is guaranteed to be identical within multiple invocations of the same
binary.
It is guaranteed to be different across binaries with different code or data
segments or layout.
Equality is unspecified if the binaries have identical code and data segments
and layout but differ immaterially (e.g. if a timestamp is included in the
binary at compile time).

Examples

let local_build_id = build_id::get();
if local_build_id == remote_build_id {
	println!("We're running the same binary as remote!");
} else {
	println!("We're running a different binary to remote");
}

Note

This looks first for linker-inserted build ID / binary UUIDs (i.e. .note.gnu.build-id on Linux; LC_UUID in Mach-O; etc), falling back to hashing the whole binary.

License

Licensed under either of

Apache License, Version 2.0, (LICENSE-APACHE.txt or http://www.apache.org/licenses/LICENSE-2.0)
MIT license (LICENSE-MIT.txt or http://opensource.org/licenses/MIT)

at your option.

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

Package Rankings

Top 13.27% on Crates.io

Badges

Extracted from project README