FUNCTION::USER_STRING_N_NOFAULT(3stap)

💖 FUNCTION::USER_STRING_N_NOFAULT 💖

okay bestie, welcome to the SystemTap Tapset Reference — yes that's the manual name, we're fancy here 🎀 — and today's main character is function::user_string_n_nofault(3stap). she's a tapset function, she's lowkey a lifesaver, and she does exactly one job and does it gorgeously. let's get into it ✨

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🌸 NAME 🌸

function::user_string_n_nofault — retrieves a string of a given length from user space 🫶

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✨ SYNOPSIS ✨

user_string_n_nofault(addr:long,n:long)

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🦋 ARGUMENTS 🦋

• addr — the user space address you want to yank the string out of. it's a long, it's where the tea lives, go get it 💅
• n — the maximum length of the string. this is your safety net for when the string is not null terminated, so n is basically the vibe check on how far you're allowed to read 🎀

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💜 DESCRIPTION 💜

so here's the deal: this function returns the C string of a maximum given length from a given user space address. that's it, that's the whole gig, and she ate 🔥

and the plot twist that makes her iconic — if the userspace data isn't accessible at the given address, she doesn't throw a tantrum, she doesn't fault, she just hands you the empty string and keeps it moving. no cap. graceful queen behaviour 👑

not me being the no fault version of the girlies... the _nofault in the name is literally her whole personality, she will not crash on you bestie 💖

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🌈 SEE ALSO 🌈

• tapset::uconversions(3stap) — go read her sister page, iykyk 🧚

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and that's a wrap, my love ✨ this page came to you courtesy of the SystemTap Tapset Reference, Ver (yeah that's all it says, the version number ghosted us 💀), dated September 2026. go forth and retrieve strings responsibly, mwah 💅💖