get_option(9)

💅 get_option(9) — from the Kernel API Manual, bestie ✨

Okay so real talk: get_option is literally the girl who reads integers out of option strings. That's her whole job. She parses int values out of your command-line-ish strings and she does it flawlessly. Periodt. 🎀

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✨ SYNOPSIS ✨

int get_option (char **str , int *pint );

Like, that signature? Iconic. Chef's kiss. 🫶

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🌸 ARGUMENTS 🌸

• str — the option string, aka the text she's gonna dig through. The main character of the operation, honestly.
• pint — the (optional output) integer value parsed from str. Optional!! We love a flexible queen. 💖

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🦋 DESCRIPTION 🦋

So what she does is: read an int from an option string. And if there's a subsequent comma available? She accepts it too. Not greedy, just thorough. 💅

When pint is NULL, that's your cue to use this function as a validator of the current option in the string. No output, just vibes — she'll tell you whether there's an int there or not. iykyk. 👑

Also super important, no cap: a leading hyphen without an integer is no integer case. But — and this is the tea — we consume it anyway for the sake of simplification. She takes the hyphen on the way out. Rude? Maybe. Convenient? Absolutely. 🙈

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🔥 RETURN 🔥

The vibe check results, in number form:

1. 0 — no int in string. Sad. 😭 Empty-handed.
2. 1 — int found, no subsequent comma. Clean, simple, slay. ✨
3. 2 — int found including a subsequent comma. Overachiever behaviour. 💀
4. 3 — hyphen found to denote a range. Ooh, a range. Fancy. 🌈

⚠️ Heads up bestie: these are the only the return values the page gives you, so don't go assuming anything else, fr fr.

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💜 SEE ALSO 💜

Go check out these icons, they're all in the kernel file ./lib/cmdline.c:

• get_options(9)
• memparse(9)
• parse_option_str(9)

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Okay bye bestie, go parse some ints 💖✨

Sign-off cuteness: this whole page lives in ./lib, dated October 2026, and it's get_option(9) — the Kernel API Manual's finest. 🧚‍♀️🍓