cuse_parse_one(9)

📦 version 7.3.1, in nixpkgs unstable

💅 cuse_parse_one(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ — this one's a tiny little function called cuse_parse_one, a whole manual page just for parsing one single key=value pair. she's small, she's specific, she's iconic 🎀

🌸 NAME 🌸

cuse_parse_one — parse one key=value pair 🫶

✨ SYNOPSIS ✨

int cuse_parse_one (char **pp , char *end , char **keyp , char **valp );

like literally that's the whole signature, no cap 💅

🦋 ARGUMENTS 🦋

  • pp — the i/o parameter for the current position, bestie. she goes in, she gets updated, she's the main character 🔥
  • end — points to one past the end of the packed string. yes, one past — classic C behaviour, we love her 🙈
  • keyp — out parameter for the key. she gets written to 💖
  • valp — out parameter for the value. same vibe, different pointer 🎀

👑 DESCRIPTION 👑

so *pp points to packed strings — "key0=val0 key1=val1 " which ends at end - 1. got it? good, because that's the whole world this function lives in 🌈

what she does: this function parses one pair and sets *keyp to the start of the key and *valp to the start of the value. cute, simple, slay ✨

⚠️ but bestie, heads up — the original string is modified such that the key string is terminated with ' '. like, she edits your string in place. not a copy, an edit. that's the vibe check and you should know it before you call her 💀

and then *pp is updated to point to the next string, so you can just keep calling her in a loop, periodt 🔁

💜 RETURN 💜

  • 1 — on successful parse, we ate and left no crumbs 👑
  • 0 — on EOF, that's the end of the packed string, nothing more to give 😭
  • -errno — on failure, the classic negative errno situation, ngl 🫶

⭐ SEE ALSO ⭐

Kernel file ./fs/fuse/cuse.c plus her whole friend group:

go read them, iykyk 💖🧚

🌸 mwah, that's the page! this one's from ./fs/fuse, dated October 2026 — go drink some water and don't forget to free your pointers bestie 💅🦋💖
📦 where this page comes from