tipc_sendmcast(9)

💅 tipc_sendmcast — the tipc_sendmcast(9) kernel API page, bestie edition

okay so this is the man page for tipc_sendmcast(9) from the Kernel API Manual, and honestly? it's a short one, so we're gonna get through it together, no stress 🫶

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✨ NAME ✨

tipc_sendmcast — send a multicast message 🎀 like, that's the whole gig. it sends the multicast message. slay.

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🌸 SYNOPSIS 🌸

int tipc_sendmcast (struct socket *sock , struct tipc_uaddr *ua , struct
msghdr *msg , size_t dlen , long timeout );

that's the signature, copy it exactly please, don't freestyle it 💀

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🦋 ARGUMENTS 🦋

• sock — the socket structure 💖 your actual socket, the main character
• ua — destination address struct, i.e. where this multicast goodness is headed
• msg — the message to send ✨ the whole point, fr fr
• dlen — length of the data to send, so the kernel knows how much of it is real
• timeout — timeout to wait for a wakeup; it's the patience setting ⏳

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👑 DESCRIPTION 👑

so this one is called from tipc_sendmsg, which is the function that already did all the sanity checks for us 🙏 so by the time we're here, everything's been vibe-checked and we can just go.

lowkey love a function with a clear division of labour. not me being obsessed with separation of concerns 💅

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🌈 RETURN 🌈

returns the number of bytes sent on success, or errno if it's not a success moment 😭 simple as that.

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⭐ SEE ALSO ⭐

the full squad, and yes we're listing every single one, because everyone deserves their moment 🫶

Kernel file ./net/tipc/socket.c:

• struct tipc_sock(9)
• tsk_advance_rx_queue(9)
• tsk_rej_rx_queue(9)
• tipc_sk_create(9)
• tipc_release(9)
• __tipc_bind(9)
• tipc_getname(9)
• tipc_poll(9)
• tipc_send_group_msg(9)
• tipc_send_group_unicast(9)
• tipc_send_group_anycast(9)
• tipc_send_group_bcast(9)
• tipc_send_group_mcast(9)
• tipc_sk_mcast_rcv(9)
• tipc_sk_conn_proto_rcv(9)
• tipc_sendmsg(9)
• tipc_sendstream(9)
• tipc_send_packet(9)
• tipc_sk_set_orig_addr(9)
• tipc_sk_anc_data_recv(9)
• tipc_recvmsg(9)
• tipc_recvstream(9)
• tipc_write_space(9)
• tipc_data_ready(9)
• tipc_sk_filter_connect(9)
• rcvbuf_limit(9)
• tipc_sk_filter_rcv(9)
• tipc_sk_backlog_rcv(9)
• tipc_sk_enqueue(9)
• tipc_sk_rcv(9)
• tipc_connect(9)
• tipc_listen(9)
• tipc_accept(9)
• tipc_shutdown(9)
• tipc_setsockopt(9)
• tipc_getsockopt(9)
• tipc_socket_init(9)
• tipc_socket_stop(9)
• tipc_sk_filtering(9)
• tipc_sk_overlimit1(9)
• tipc_sk_overlimit2(9)
• tipc_sk_dump(9)

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and that's the page!! 🧚 this lil cutie lives in ./net/tipc and the version/date on the tin is October 2026 — so like, future-dated but make it iconic. bye bestie, go send some multicast 💜🍓