SMIME_TEXT(3)

📦 version 4.4.0, in alpine 3.24, arch rolling

💖 SMIME_TEXT(3) — Library Functions Manual, but make it main character 💖

okay so bestie, this is the manual page for SMIME_TEXT(3) from the Library Functions Manual, and it's giving "tiny utility, very specific job." No cap: if you need to strip text/plain MIME headers, this is your girl. 🎀

✨ NAME ✨

SMIME_text — remove text/plain MIME headers. That's it, that's the whole vibe: the MIME headers get discarded and the actual text gets to shine. 💅

🌸 SYNOPSIS 🌸

library “libcrypto” #include <openssl/asn1.h>

int
SMIME_text(BIO *in_bio, BIO *out_bio);

🦋 DESCRIPTION 🦋

So SMIME_text() rolls up to in_bio, reads the MIME headers, and checks that the content type is text/plain. If that checks out, it discards those MIME headers like last season's drama and copies the text that follows the headers from in_bio to out_bio. Literally remove headers, keep the text, slay. ✨

💜 RETURN VALUES 💜

SMIME_text() returns 1 on success. Iconic. It returns 0 if any of these happen:

  • memory allocation fails 😭
  • reading the input fails 😭
  • parsing the MIME headers fails 😭
  • there is no content-type header 😭
  • the content type is not text/plain 😭

No in-between, no ambiguous vibe check — just 1 or 0, periodt. 💀

🔥 SEE ALSO 🔥

Go read those if you want the whole friend group lore. 🫶

🌈 HISTORY 🌈

SMIME_text() first appeared in OpenSSL 1.0.0 and has been available since OpenBSD 4.9. Respect the veteran status, honestly. 👑

🎀 CAVEATS 🎀

Warning: SMIME_text() does not support non-blocking BIOs. Like, do not try to make it do the non-blocking thing — that is not its era, bestie. 🙈

xoxo, your Debian bestie 💖 — June 11, 2025

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