strnlen(9)

🌸 NAME 🌸

okay bestie, welcome to the Kernel API Manual entry for strnlen(9) 💅✨

strnlen — returns a bounded count of characters in a NUL-terminated string 🎀

✨ SYNOPSIS ✨

__kernel_size_t strnlen (const char * const p , __kernel_size_t maxlen
);

🦋 ARGUMENTS 🦋

• p — pointer to the NUL-terminated string you're counting, bestie 🫶
• maxlen — the maximum number of characters to count, no cap 📏

💖 DESCRIPTION 💖

So here's the vibe: it returns the number of characters in p — and NOT including the final NUL, okay? 😌 — or it returns maxlen if no NUL has been found up to there 👑✨

That's literally the whole thing. Iconic behavior, zero drama 💅

🌈 SEE ALSO 🌈

• Kernel file ./include/linux/fortify-string.h unsafe_memcpy(9), strlen(9), strlcat(9), strcat(9), strncat(9), strcpy(9) 🦋💖

mwah 💋 this page's source/version is ./include/linux, dated October 2026 — periodt, bestie 🫶👑