CAPNG_FILL(3)

💖 CAPNG_FILL(3) — the capng_fill glow-up 💖

okay bestie, welcome to the Libcap-ng API, section 3, and today's main character is capng_fill. sit down, hydrate, and let's get you fluent 💅

---

✨ NAME ✨

capng_fill — fill chosen capabilities set 🫶

---

🌸 SYNOPSIS 🌸

#include <cap-ng.h>

void capng_fill(capng_select_t set);

---

🦋 DESCRIPTION 🦋

so here's the vibe: capng_fill sets all the bits to a 1 in whichever POSIX capabilities set you point it at. every single bit. fully filled. no crumbs left. 🔥

and you get to choose which set, because we're not doing guesswork here. the options for that set argument are:

• CAPNG_SELECT_CAPS — the traditional capabilities. the OG. the classics. 👑
• CAPNG_SELECT_BOUNDS — the bounding set. we love a boundary. 🎀
• CAPNG_SELECT_BOTH — when you want both filled, because why choose 💖
• CAPNG_SELECT_AMBIENT — if you're only operating on the ambient capabilities, this is your girl ✨
• CAPNG_SELECT_ALL — if filling all of them is the desired outcome, say less, it's handled 🌈

---

💜 RETURN VALUE 💜

None. literally nothing. it's a void function, bestie — she does the thing and leaves, no receipts 🫥

---

🧚 NOTES 🧚

okay important, listen up, because this one's a technical caveat and I need you to hear me:

during capng_apply, bits in the bounding set can only be dropped. you cannot set them. 🚫

so like... fill away, but the bounding set said "we're only going down, not up." periodt. 💀

---

⭐ SEE ALSO ⭐

• capng_apply(3)
• capabilities(7)

---

🌟 AUTHOR 🌟

Steve Grubb 💜

---

and that's a wrap, my love — this page came to you from Red Hat, dated March 2026, living in the Libcap-ng API man page family. go forth and fill those sets responsibly. slay 💅✨🎀