socket_accept6(3)

💖 socket_accept6(3) — bestie's guide to accepting IPv6 TCP connections 💖

okay so real talk, this one lives in the Library Functions Manual, section 3, and it's the moment every lil listening socket has been waiting for: the glow-up where a connection finally arrives. 🦋

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✨ NAME ✨

socket_accept6 — accept an IPv6 TCP connection on a socket

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✨ SYNTAX ✨

#include <libowfat/socket.h>

int socket_accept6(int s,char ip[16],uint16 *port,uint32 *scope_id);

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✨ DESCRIPTION ✨

so here's the vibe, bestie. when a TCP connection shows up on a listening TCP socket s, that socket becomes readable. like, it's literally glowing, it's got news, it's the main character. ✨

socket_accept6 accepts the connection. it sets ip and port to the client IP address and client TCP port, and sets scope_id to the IPv6 scope ID. then it creates a brand new socket for the connection and returns a file descriptor pointing to that new socket. you can use the read and write system calls to transmit data through that file descriptor. yes queen, that's your data pipe now. 🫶

if scope_id is the null pointer, socket_accept6 will discard the scope ID. not needed? not kept. bye. 💅

if something goes wrong, socket_accept6 returns -1, setting errno appropriately, without creating a new socket. no half-finished socket nonsense, no messy leftovers. it just says no. 😭

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✨ EXAMPLE ✨

#include <libowfat/socket.h>

int s;
char ip[16];
uint16 port;
uint32 scope_id;

s = socket_tcp6();
socket_bind6(s,ip,port,scope_id);
socket_listen(s,16);
socket_accept6(s,ip,&port,&scope_id);

look at her go. tcp6 socket, bound, listening, accepted. a whole storyline in five lines. 🌸

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✨ SEE ALSO ✨

• socket_accept4(3)
• socket_connected(3)
• socket_accept6_makenonblocking(3)
• socket_accept6_setcloseonexec(3)
• socket_accept6_makenonblocking_setcloseonexec(3)

the whole friend group fr fr 🧚

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and that's the page!! this is socket_accept6(3) from the Library Functions Manual, section 3, brought to you by libowfat, and it ate, no cap. mwah. 💋🎀