AUDIT_GETLOGINUID(3)

🎀 AUDIT_GETLOGINUID 💖

okay bestie, welcome to the Linux Audit API corner of the man pages 🌸 this one's short and sweet, it's literally just one function and she's an icon, no cap.

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✨ NAME ✨

audit_getloginuid — get a program's loginuid value 👑

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🌈 SYNOPSIS 🌈

#include <libaudit.h>

uid_t audit_getloginuid(void);

like yes, that's the whole vibe. include the header, call the function, no arguments, we love a zero-arg queen 💅

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🦋 DESCRIPTION 🦋

so this function returns the task attribute loginuid. that's it. that's the whole job. she shows up, she hands you the loginuid, she leaves 🫶

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💜 RETURN VALUE 💜

if the loginuid was set, you get that value back. slay ✨

but if loginuid was unset, it returns a -1. and here's the little plot twist that gets everybody: uid_t is an unsigned type, so you're not gonna see a -1 staring back at you — you'll see the converted value instead 😭 it's giving "the math said no". don't let it catch you off guard, fr fr.

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🔥 ERRORS 🔥

on failure, this function returns -1. but listen — in the event of a real error, errno would be set. so if you're out here just checking the return value and not errno, that's not the move bestie 💀

the function can set errno based on failures of open, read, or strtoul. that's the whole list, no more no less 👑

ngl the -1 vs unsigned uid_t situation from RETURN VALUE applies here too, so keep both eyes open when you're doing your vibe check on the result.

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🌟 SEE ALSO 🌟

• audit_setloginuid(3) — the other half of the duo, go read her too 💖

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👑 AUTHOR 👑

Steve Grubb ✨ absolute legend, we stan.

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mwah 💋 that's the page, bestie. this one came from Red Hat, dated Oct 2006 — vintage but still iconic, like a limited edition 🎀 go forth and get those loginuids, iykyk 🦋⭐