strnchrnul(9)

✨ strnchrnul — bestie edition ✨

okay so this is a page from the Kernel API Manual (that's the manual name, iykyk 💅) and honestly? it's a little icon and you're gonna love it.

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🌸 NAME 🌸

strnchrnul — find and return a character in a length limited string, or end of string 💖

like, it's right there in the name bestie, no cap.

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🎀 SYNOPSIS 🎀

char * strnchrnul (const char *s , size_t count , int c );

that's the whole vibe. three args, one pointer back. periodt. ✨

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🦋 ARGUMENTS 🦋

• s — the string to be searched 🌸 this is the main character, the one getting looked through
• count — the number of characters to be searched 🎀 so like, the limit, the boundary, the "don't go past this" energy
• c — the character to search for 💜 the one we're hunting for fr fr

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👑 DESCRIPTION 👑

okay so here's the tea: it returns a pointer to the first occurrence of c in s. that's it, that's the whole thing, slay. 🫶

and if c is not found? then it returns a pointer to the last character of the string. literally not me being dramatic, that's just what it does 💀

⚠️ heads up bestie — read that second sentence carefully, because "not found" here does not mean you get a NULL back. it means you get a pointer to the last character of the string. that's the whole point of the nul in the name, and it's giving iconic 🌈

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💅 SEE ALSO 💅

the whole friend group, in the Kernel file ./lib/string.c:

strncasecmp(9), stpcpy(9), strcmp(9), strncmp(9), strchr(9), strchrnul(9), strrchr(9), strnchr(9), strspn(9), strcspn(9), strpbrk(9), strsep(9), memset(9), memset16(9), memset32(9), memset64(9), memcpy(9), memmove(9), memcmp(9), bcmp(9), memscan(9), strstr(9), strnstr(9), memchr(9), memchr_inv(9)

go say hi to all of them, they're all serving 🧚‍♀️✨

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aaand that's the page!! 🍓 sign-off time: this one lives in ./lib, dated October 2026, and it's filed under strnchrnul(9) in case you need to find it again. love that for us 💖🦋🎀