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DARPA suggests turning old C code automatically into Rust – using AI, of course (www.theregister.com)

submitted 3 months ago by [email protected] to c/[email protected]

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To accelerate the transition to memory safe programming languages, the US Defense Advanced Research Projects Agency (DARPA) is driving the development of TRACTOR, a programmatic code conversion vehicle.

The term stands for TRanslating All C TO Rust. It's a DARPA project that aims to develop machine-learning tools that can automate the conversion of legacy C code into Rust.

The reason to do so is memory safety. Memory safety bugs, such buffer overflows, account for the majority of major vulnerabilities in large codebases. And DARPA's hope is that AI models can help with the programming language translation, in order to make software more secure.

"You can go to any of the LLM websites, start chatting with one of the AI chatbots, and all you need to say is 'here's some C code, please translate it to safe idiomatic Rust code,' cut, paste, and something comes out, and it's often very good, but not always," said Dan Wallach, DARPA program manager for TRACTOR, in a statement.

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[–] [email protected] 105 points 3 months ago* (last edited 3 months ago) (12 children)

"You can go to any of the LLM websites, start chatting with one of the AI chatbots, and all you need to say is 'here's some C code, please translate it to safe idiomatic Rust code,' cut, paste, and something comes out, and it's often very good, but not always," said Dan Wallach, DARPA program manager for TRACTOR, in a statement.

"This parlor trick impressed me. I'm sure it can scale to solve difficult real world problems."

It's a promising approach worth trying, but I won't be holding my breath.

If DARPA really wanted safer languages, they could be pushing test coverage, not blindly converting stable well tested C code into untested Rust code.

This, like most AI speculation, reeks of looking for shortcuts instead of doing the boring job at hand.

[–] [email protected] 12 points 3 months ago (3 children)

You would also port the tests, right?

[–] [email protected] 6 points 3 months ago* (last edited 3 months ago) (1 children)