base64_decode(9)

💖 base64_decode(9) — Kernel API Manual 💖

okay so bestie, welcome to the Kernel API Manual page for base64_decode 💅 this is the lil function that takes your Base64 string and turns it back into raw decoded bytes. no NUL-terminator drama, we got lengths. let's go ✨

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🌸 NAME 🌸

base64_decode — Base64-decode a string 🎀

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✨ SYNOPSIS ✨

int base64_decode (const char *src , int srclen , u8 *dst , bool padding
       , enum base64_variant variant );

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🎀 ARGUMENTS 🎀

• src — the string to decode. and nope, it doesn't need to be NUL-terminated 🫶
• srclen — the length of src in bytes 📏
• dst — (output) the decoded binary data 🧚
• padding — whether the input is expected to include '=' padding characters 🔤
• variant — which base64 variant to use 🌈

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💅 DESCRIPTION 💅

Decodes a string using the selected Base64 variant. periodt — pick your variant, pass the string, get decoded data. slay 💖

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🫶 RETURN 🫶

returns the length of the resulting decoded binary data in bytes, or -1 if the string isn't a valid Base64 string 💀 so if it ate, you get the byte count; if it's invalid, -1 says nope 🙈

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🔥 SEE ALSO 🔥

• Kernel file ./lib/base64.c 🧚
• base64_encode(9) — also peep this one ✨

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that's the page, bestie! source/version: ./lib; date: October 2026; manual name: base64_decode(9) — bye 💜🦋