CAPNG_UPDATEV(3)

💅 CAPNG_UPDATEV — ok bestie, let's talk about capng_updatev(3)

So this is a libcap-ng API page, and it's literally the glow-up version of capng_update. Sit down, hydrate, and let's get into it 🫶

✨ NAME ✨

capng_updatev — update the stored capabilities settings 💖

🌸 SYNOPSIS 🌸

#include <cap-ng.h>

int capng_updatev(capng_act_t action, capng_type_t type,      unsigned
int capability, ...);

Yes, she takes varargs. She's that girl. 👑

🦋 DESCRIPTION 🦋

okay so capng_updatev updates the internal POSIX capabilities settings based on the options you hand it. Think of it like editing your vibe in the group chat, but the group chat is a capability set. 😌

The action should be either CAPNG_DROP — which sets the capability bit to 0 — or CAPNG_ADD, which sets that capability bit to 1. Choose your fighter. 💅

The operation lands on the capability set you specify in the type parameter. The values are:

• CAPNG_EFFECTIVE
• CAPNG_PERMITTED
• CAPNG_INHERITABLE
• CAPNG_BOUNDING_SET
• CAPNG_AMBIENT

and the tea is: you can or them together to do the same operation on multiple sets at once. Multi-tasking queen. ✨

The last parameter, capability, is the capability define as given in linux/capability.h. iykyk. 📚

Not me about to explain why she's different — because she IS. This function differs from capng_update in that you may pass a list of capabilities. And bestie, listen: this list must be terminated with a -1 value. No -1, no closure. It's giving "please know when to stop." 🚨

💀 RETURN VALUE 💀

She returns 0 on success and -1 on failure. That's it, that's the whole personality. 🌈

🎀 SEE ALSO 🎀

• capng_update(3)
• capabilities(7)

👑 AUTHOR 👑

Steve Grubb. Respect the icon, fr fr. 🫡

k bye bestie, go forth and update those capabilities responsibly 💜

this one came to you courtesy of Red Hat, and the page itself is dated June 2009 — vintage but still slaying. 🎀✨