Thanks yeah just woke up, finished making my way through the single-article website and still unclear if other libcs do the same thing (the article says libxcrypt picked it up, but only after musl did it).
Some more clarity ... Multiple implementations have these sentinel values (not OpenBSD). But unfortunately only musl had a sentinel value that was also used in shadow files...
[–] NewJazz 3 days ago
[–] NewJazz 2 days ago
https://hachyderm.io/@ncopa@fosstodon.org/117564809789053485