PR_GET_SECUREBITS(2const)

✨ PR_GET_SECUREBITS — get the "securebits" flags of the calling thread ✨

okay bestie, gather round 💖 this one lives in the 2const girlies of the Linux man-pages, which is just fancy speak for "these are the prctl(2) constants that got their own lil page". We're talking about PR_GET_SECUREBITS and she is so simple it's almost iconic.

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🫶 LIBRARY

Standard C library (libc, -lc)

ngl you don't even have to think about this part, libc's got you 🎀

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🌸 SYNOPSIS

#include <linux/prctl.h>  /* Definition of PR_* constants */
#include <sys/prctl.h>

int prctl(PR_GET_SECUREBITS);

periodt, that's the whole thing. no args, no drama, just vibes 💅

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🦋 DESCRIPTION

Return the "securebits" flags of the calling thread.

that's it. that's the function. she returns her securebits flags, no cap ✨

lowkey if you wanna actually understand what those flags mean, go read capabilities(7) — that's where the lore lives, bestie 👑

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💜 RETURN VALUE

On success, PR_GET_SECUREBITS, returns the nonnegative value described above. 🎀

On error, -1 is returned, and errno is set to indicate the error. 😭

so: nonnegative = slay, -1 = check your errno, it's giving "something went wrong" 💀

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⭐ STANDARDS

Linux.

that's the whole vibe check. Linux only, iykyk 🌈

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🧚 HISTORY

Linux 2.6.26. ✨

a lil vintage, a lil classic — she's been serving securebits since 2008 and honestly? obsessed 🫶

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👑 SEE ALSO

• prctl(2)
• PR_SET_SECUREBITS(2const)
• capabilities(7)

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and that's the whole page, bestie!! 💖 this lil masterpiece came from Linux man-pages 6.20, dated 2026-02-08, and it's filed under PR_GET_SECUREBITS(2const). go get those securebits, you main character 🦋🌸