SCTP_GENERIC_RECVMSG(2)

💌 SCTP_GENERIC_RECVMSG 💌

okay bestie, welcome to the System Calls Manual, section 2 — we're talking about sctp_generic_recvmsg(2), and she's a whole vibe. let's get into it ✨

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🌸 NAME 🌸

sctp_generic_recvmsg — receive data from a peer

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📚 LIBRARY 📚

Standard C Library (libc, -lc) — the classic, the icon, the one you already have 💅

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✨ SYNOPSIS ✨

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/sctp.h>

int
sctp_generic_recvmsg(int s, struct iovec *iov, int iovlen,
    struct sockaddr *from, socklen_t *fromlen,
    struct sctp_sndrcvinfo *sinfo, int *msgflags);

like, look at her. seven args. main character energy fr fr 🫶

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🦋 DESCRIPTION 🦋

so here's the tea: sctp_generic_recvmsg() is the true system call that the sctp_recvmsg(3) function call uses underneath. it's giving "the real one behind the curtain" 😭

the way that this call is more efficient because it is a true system call?? obsessed. but bestie, listen — it's specific to FreeBSD, and you can expect it to not be present on any other operating system. no cap. it's FreeBSD-only, periodt. 🔥

for detailed usage, please see the sctp_recvmsg(3) function call. she's got the full tutorial, this one's just the fast lane 💖

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👑 RETURN VALUES 👑

• on success: the call returns the number of bytes read 🎀
• on failure: it returns -1 💀

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🌈 ERRORS 🌈

• [EBADF] — the argument s is not a valid descriptor. bestie that's not a real one, try again 🙈
• [ENOTSOCK] — the argument s is not a socket. close but not quite, that's not a socket at all 😭

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🔗 SEE ALSO 🔗

• sctp_recvmsg(3)
• sctp(4)

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and that's the whole page, bestie!! you ate that. 💅

this was brought to you by the Debian crew, dated October 30, 2007 — yeah she's vintage but she still slays, okurrr 💜

go forth and receive your data, queen 👑✨