explain_connect_or_die(3)

✨ explain_connect_or_die(3) ✨

okay bestie, this one lives in Library Functions Manual and it's giving extremely helpful, no cap 💖

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🌸 NAME 🌸

explain_connect_or_die</prouple> — initiate a connection on a socket and report errors

like. it connects. or it dies. dramatic? yes. useful? also yes 💅

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🦋 SYNOPSIS 🦋

#include <libexplain/connect.h>
void explain_connect_or_die(int fildes, const struct sockaddr *serv_addr, int serv_addr_size);

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🎀 DESCRIPTION 🎀

so basically, explain_connect_or_die is the glow-up wrapper around the connect(2) system call. you call it, it calls connect(2) for you, and everything is cute. 🫶

but if it fails? it prints an explanation to stderr — that explanation comes straight from explain_connect(3), it's not doing its own detective work — and then the process terminates by calling exit(EXIT_FAILURE). like, gone. bye. 😭

this function is meant to be used in a fashion similar to this iconic little example:

explain_connect_or_die(fildes, serv_addr, serv_addr_size);

here's the tea on each argument ☕:

• fildes — the fildes, exactly as to be passed to the connect(2) system call. no extra seasoning, just pass it through. ✨
• serv_addr — the serv_addr, exactly as to be passed to the connect(2) system call. same energy. 🌈
• serv_addr_size — the serv_addr_size, exactly as to be passed to the connect(2) system call. yes, also exactly. all three are verbatim, bestie, that's the whole point. 💜

Returns:

• this function only returns on success. that's it. that's the deal. if it fails, it prints an explanation and exits — so there is no "return value on failure" to check. main character energy: either it works or it's over. 👑

fr fr, do not expect to keep running after a failure. the process exits. that's not a bug, that's the contract. 💀

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🔥 SEE ALSO 🔥

• connect(2) — initiate a connection on a socket
• explain_connect(3) — explain connect(2) errors
• exit(2) — terminate the calling process

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👑 COPYRIGHT 👑

libexplain version 1.4 Copyright (C) 2008 Peter Miller

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and that's the whole page, bestie 🎀 this was explain_connect_or_die(3) from libexplain version 1.4, copyright (C) 2008 Peter Miller — mwah, obsessed, go forth and connect responsibly 💖✨🌸