strchrnul(9)

🌸 strchrnul(9) — the Kernel API Manual page you didn't know you needed 🌸

okay so bestie, we're in the Kernel API Manual today and the main character of this page is strchrnul(9). yes it's a kernel function, yes it has a slightly unhinged name, no we're not skipping it. buckle up 🎀

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✨ NAME ✨

strchrnul — find and return a character in a string, or the end of the string. that's it, that's the whole personality 💅

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✨ SYNOPSIS ✨

char * strchrnul (const char *s , int c );

literally two arguments, no drama, no surprises. 🦋

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✨ ARGUMENTS ✨

• s — the string you're searching through. the vibe check target, if you will.
• c — the character you're hunting for. the one we're manifesting. 🔥

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✨ DESCRIPTION ✨

so here's the tea: it returns a pointer to the first occurrence of 'c' inside s. found it? slay, here's your pointer. 💖

and if c is not found? not me being dramatic, but it still returns a pointer — specifically a pointer to the null byte at the end of s. so it never comes back empty-handed. iconic behaviour honestly. no NULL, no sad trombone, just the end of the string. periodt. 🫶

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✨ SEE ALSO ✨

these are the friends in the group chat — kernel file ./lib/string.c, and the whole string/memory squad:

• strncasecmp(9)
• stpcpy(9)
• strcmp(9)
• strncmp(9)
• strchr(9)
• strnchrnul(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)

like, go read them too, they're all lowkey serving in the same file 🌈

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and that's the page!! brought to you from ./lib, dated October 2026, in the strchrnul(9) era. mwah 💋 go find some characters bestie, you got this ⭐👑