libssh2_banner_set(3)

💖 libssh2_banner_set — bestie edition 💖

okay so this is a page from the libssh2 manual, and it's about telling the SSH server who you are before y'all start talking. very "hi, it's me" energy. 🎀

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✨ NAME ✨

libssh2_banner_set — set the SSH protocol banner for the local client

like, the lil intro line your client says when it walks into the server's DMs. 💅

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✨ SYNOPSIS ✨

#include <libssh2.h>

int
libssh2_banner_set(LIBSSH2_SESSION *session, const char *banner);

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✨ DESCRIPTION ✨

🚨 MAJOR PSA BESTIE 🚨 This function is DEPRECATED in 1.4.0. Use the libssh2_session_banner_set(3) function instead! fr fr, the old one is giving legacy, the new one is giving main character.

okay so here's the cast of characters:

• session — a Session instance, exactly the kind you get back from libssh2_session_init_ex(3). your whole connection lives in there. 🫶
• banner — a pointer to a user defined banner. that's your custom text, your lil signature, your vibe check. ✨

so what does it actually do? it sets the banner that will be sent to the remote host when the SSH session is started with libssh2_session_handshake(3). 🔥

and here's the chill part — this whole thing is optional. if you don't set anything, a banner corresponding to the protocol and libssh2 version will be sent by default. so libssh2 will just introduce itself for you, no biggie. 🌸

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✨ RETURN VALUE ✨

Return 0 on success, or negative on failure. ✨

It returns LIBSSH2_ERROR_EAGAIN when it would otherwise block. and like… yes, LIBSSH2_ERROR_EAGAIN is technically a negative number, but it is not really a failure per se. it's just saying "not right now babe, try again later." it's the "brb" of return codes. 😌

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✨ AVAILABILITY ✨

Marked as deprecated since 1.4.0. 💀 (we still love her tho, she served her time)

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✨ ERRORS ✨

• LIBSSH2_ERROR_ALLOC — An internal memory allocation call failed. that's the malloc girlies having a rough day. 😭

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✨ SEE ALSO ✨

• libssh2_session_handshake(3)

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and that's the whole page bestie, no cap, every single detail accounted for. 🧚💜

this was libssh2 0.15, dated 1 Jun 2007 — yeah, she's an elder icon from the libssh2 0.15 era, June 2007 vintage, and she still ate. 👑✨