MODFIND(2)

💅 MODFIND(2) — System Calls Manual 💅

hey bestie, welcome to modfind(2) — the tiny system call with main character energy. no cap, it's here to fetch a kernel module's modid and dip. 🦋

🌸 NAME 🌸

modfind — returns the modid of a kernel module. literally that's it, and it ate. 👑

🫶 LIBRARY 🫶

Standard C Library (libc, -lc). link it like you mean it, bestie. 💖

✨ SYNOPSIS ✨

okay so here's the summoning code, exactly as the manpage gods wrote it:

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

int
modfind(const char *modname);

🦋 DESCRIPTION 🦋

The modfind() system call returns the modid of the kernel module referenced by modname. so you hand it a module name, it hands you back the ID. no extra lore, just vibes and kernel module matching. 💅

🔥 RETURN VALUES 🔥

The modfind() system call returns the modid of the kernel module referenced by modname. iconic behavior.

Upon error, modfind() returns -1 and sets errno to indicate the error. so if you see -1, check errno — it's giving "something went wrong, here's the receipt." 😭

💀 ERRORS 💀

errno is set to the following if modfind() fails:

• EFAULT — The data required for this operation could not be read from the kernel space. ngl, kernel space wasn't giving what needed to be gave. 💀
• ENOENT — The file specified is not loaded in the kernel. bestie, that thing is not loaded in the kernel, periodt. 🙈

👀 SEE ALSO 👀

go read these next, iykyk: kldfind(2), kldfirstmod(2), kldload(2), kldnext(2), kldstat(2), kldsym(2), kldunload(2), modfnext(2), modnext(2), modstat(2), kld(4), kldstat(8). 💜

🎀 HISTORY 🎀

The kld interface first appeared in FreeBSD 3.0. vintage but still slaying. ⭐

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💖 cute sign-off: this page is from Debian, dated September 28, 2000 — mwah, bye bestie! 🎀