Drew DeVault • 8/28/2022

powerctl: A small case study in Hare for systems programming

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The article details the creation of 'powerctl', a 500-line Hare program for managing Linux power states (like suspend) as a non-privileged user. It serves as a systems programming case study, covering setuid binaries, group lookup from /etc/group, and sysfs I/O, demonstrating Hare's suitability for such low-level tasks.

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#linux #systems programming #Setuid
powerctl: A small case study in Hare for systems programming

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