sock_sendmsg(9)

📦 version 7.3.1, in nixpkgs unstable

👑 sock_sendmsg(9) — like, the Kernel API Manual era 💅

okay bestie, welcome to the sock_sendmsg page from the Kernel API Manual — yes, that manual, the one that lives rent free in /usr/share/man/man9 🎀

✨ NAME ✨

sock_sendmsg — send a message through @sock 🦋

🌸 SYNOPSIS 🌸

int sock_sendmsg (struct socket *sock , struct msghdr *msg );

no cap, that's the whole signature. short, iconic, main character energy 💖

🫶 ARGUMENTS 🫶

  • sock — a socket. that's it. that's the whole vibe. 🔌
  • msg — the message to send 📨

💫 DESCRIPTION 💫

So it sends msg through sock, and the way that it does this is by passing through LSM — yes, the security hook girlies get their moment, we love a checked path ✨

It returns the number of bytes sent, or an error code. so either a cute little byte count or a whole error situation 😭 that's the deal, fr fr.

🔥 SEE ALSO 🔥

the kernel file is ./net/socket.c — literally the source of truth, go look at her 💅

and the whole friend group, in order:

twenty-five besties and they all slay in their own way, iykyk 🌈

ok that's the whole page, every flag-free detail preserved, no notes 💀

sign-off era: this lil number comes from ./net, dated October 2026, and it's filed under sock_sendmsg(9). mwah, go read the kernel 💋🌸

📦 where this page comes from