MODFIND(2)

💖 MODFIND(2) — the system call manual, bestie edition 💖

okay so real talk, this one is from the System Calls Manual and it's giving "tiny function, huge responsibilities". let's get into it 🫶

---

✨ NAME ✨

modfind — returns the modid of a kernel module

like, that's the whole job. it finds the modid. iconic behaviour honestly 👑

---

📚 LIBRARY 📚

Standard C Library (libc, -lc)

so yeah she lives in libc, link her like you'd link anything else in there 💅

---

🎀 SYNOPSIS 🎀

#include <sys/param.h>
#include <sys/module.h>

int
modfind(const char *modname);

look at her. one function. one const char *. no drama. no cap. ✨

---

🌸 DESCRIPTION 🌸

so basically, the modfind() system call returns the modid of the kernel module referenced by modname.

that's it. that's the whole vibe. you hand her a module name, she hands you back the modid. main character energy, minimal dialogue 💖

---

🦋 RETURN VALUES 🦋

modfind() returns the modid of the kernel module referenced by modname. that's the good ending, we love that for you 🌈

but if things go sideways? modfind() returns -1 and sets errno to indicate the error. not the vibe, but at least she tells you why 😭

---

💀 ERRORS 💀

errno gets set to one of these when modfind() fails, and bestie you're gonna wanna read them:

• [EFAULT] — the data required for this operation could not be read from the kernel space. like the kernel just. couldn't hand it over. awkward. 🙈
• [ENOENT] — the file specified is not loaded in the kernel. she looked. it's not there. it's giving empty shelf at the library 📭

---

🔥 SEE ALSO 🔥

the whole friend group, fr fr:

• kldfind(2)
• kldfirstmod(2)
• kldload(2)
• kldnext(2)
• kldstat(2)
• kldsym(2)
• kldunload(2)
• modfnext(2)
• modnext(2)
• modstat(2)
• kld(4)
• kldstat(8)

go read them. iykyk 📖✨

---

⭐ HISTORY ⭐

the kld interface first appeared in FreeBSD 3.0. a legend from day one, lowkey 👑

---

okay that's the whole page, you absolutely ate this one bestie 💅✨ this was the Debian build of the manual, dated September 28, 2000, and the page itself is MODFIND(2) — go forth and find those modids, you've got this 🫶💖