Tootfinder

I've read a couple of different post-mortems on the uutils CVEs in Ubuntu now. I still love Rust, but I'm struck by a couple of things. A lot of this comes down to TOCTOU, time of creation to time of use. Those issues would be mostly mitigated if the code took full advantage of Unix features such as passing file descriptors rather than paths, or passing permissions to file creation functions instead of creating a file and then modifying the permissions. The path of least resistance f…