SSL_DUP(3)

📦 version 4.4.0, in alpine 3.24, arch rolling

🦋 SSL_DUP(3) 🦋

okay bestie, real talk: this page is from the library “libssl” libcrypto world, and it's all about SSL_dup — the deep-copy girlie of the SSL object universe. She copies a lot, but she is not doing a full identity theft, and I need you to know that before we proceed. 💅✨

🌸 NAME 🌸

SSL_dup — deep copy of an SSL object 🫶

✨ SYNOPSIS ✨

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

SSL *
SSL_dup(SSL *ssl);

💖 DESCRIPTION 💖

SSL_dup() constructs a new SSL object in the same context as ssl and copies much of the contained data from ssl to the new SSL object — but many fields, for example tlsext data, are not copied. it's giving "inspired-by remix," not "1:1 clone," bestie. no cap. 😭

As an exception from deep copying, if a session is already established, the new object shares ssl->cert with the original object. so yeah, they're sharing that one specific thing like besties sharing a Stanley cup — iconic behavior, but only in that one case. 💀

🔥 RETURN VALUES 🔥

SSL_dup() returns the new SSL object or NULL on failure. that's it. that's the tea. ☕

🌈 SEE ALSO 🌈

go read these when you're done slaying this page, iykyk. 👑

⭐ HISTORY ⭐

SSL_dup() first appeared in SSLeay 0.8.0 and has been available since OpenBSD 2.4. she's been around, and she's still doing her little deep-copy thing. periodt. 💜

mwah 💋 — this cutie was brought to you by Debian, dated June 8, 2025, and the manual page is literally SSL_DUP(3). bye bestie, go copy responsibly! 🎀🦋💖

📦 where this page comes from