libssh2_channe..._streamlocal_ex(3)

💖 libssh2_channel_direct_streamlocal_ex — a manual page, but make it a group chat 💖

okay bestie, so this is a page from the libssh2 manual set, and today we're doing libssh2_channel_direct_streamlocal_ex. it's giving "tunnel a UNIX socket through SSH" energy and honestly? iconic. let's get into it. 🦋

✨ NAME ✨

libssh2_channel_direct_streamlocal_ex — tunnel a UNIX socket connection through an SSH session 💅

✨ SYNOPSIS ✨

#include <libssh2.h>

LIBSSH2_CHANNEL *
libssh2_channel_direct_streamlocal_ex(LIBSSH2_SESSION *session,
                                      const char *socket_path,
                                      const char *shost, int sport);

no cap, that's the whole signature. copy it exactly, don't freestyle it. 📝

✨ DESCRIPTION ✨

so here's the cast of characters, one by one 🎀

• session — the Session instance, as returned by libssh2_session_init_ex(3). your main character, basically. 👑
• socket_path — the UNIX socket you're connecting to, using the SSH host as a proxy. yes, a proxy. the SSH host is doing the middleman thing and honestly it's serving. 🌸
• shost — the host you tell the SSH server the connection originated on. like, "hey, this is where it's coming from, just so you know." 💌
• sport — the port you tell the SSH server the connection originated from. the companion piece to shost. 🍓

and what does the function actually do? it tunnels a UNIX socket connection through the SSH transport, via the remote host, to a third party. 🕳️➡️🦋

real talk though, listen closely: communication from the client to the SSH server stays encrypted, but communication from the server to the 3rd party host travels in cleartext. that's the vibe. not everything is wrapped, bestie. 😭

✨ RETURN VALUE ✨

you get a pointer to a newly allocated LIBSSH2_CHANNEL instance. 🎁

or NULL on errors. (the sad path. we don't talk about the sad path. 💀)

✨ ERRORS ✨

• LIBSSH2_ERROR_ALLOC — an internal memory allocation call failed. it's giving "not enough room, bestie." 🙈

✨ SEE ALSO ✨

• libssh2_session_init_ex(3)

and that's the whole page, fr fr. this one comes from the libssh2 manual, version 1.11.0, dated 10 Apr 2024. go tunnel something responsibly, bestie — ily, stay encrypted where you can 💜✨🌈