explain_fdopen_or_die(3)

💖 explain_fdopen_or_die(3) — bestie edition 💖

okay so this is a page from the Library Functions Manual, and it's all about explain_fdopen_or_die — stream open functions and report errors. yes the name is a whole mouthful, we move anyway 🫶

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✨ NAME ✨

explain_fdopen_or_die — stream open functions and report errors. it does the thing AND it tells you why it went wrong, no cap 💅

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🌸 SYNOPSIS 🌸

#include <libexplain/fdopen.h>
void explain_fdopen_or_die(int fd, const char *mode);

like literally that's it, that's the whole vibe 🌈

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🦋 DESCRIPTION 🦋

okay so here's the tea, bestie 🍓 — the explain_fdopen_or_die function is used to call the fdopen(3) system call. and if it fails? it prints an explanation to stderr, which it gets from explain_fdopen(3), and then the process terminates by calling exit(EXIT_FAILURE). yeah. it's giving "we die with receipts" 💀

this function is intended to be used in a fashion similar to the following example:

FILE *fp = explain_fdopen_or_die(fd, mode);

look at her go ✨

• fd — the fd, exactly as to be passed to the fdopen(3) system call. same fd, same energy, no edits 👑
• mode — the mode, exactly as to be passed to the fdopen(3) system call. whatever you'd hand to fdopen(3), you hand to this. identical, fr fr.

Returns:

• This function only returns on success. On failure, it prints an explanation and exits. that's it. there is no "on failure it returns NULL and you check errno" arc here. it simply leaves. main character exit 💅

⚠️ heads up bestie — on failure this thing does not come back to you. it prints and it exits. so don't be out here writing code after the call expecting to handle the error yourself, because the error handling already happened. iykyk 😭

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🎀 SEE ALSO 🎀

• fdopen(3) — stream open functions 🌊
• explain_fdopen(3) — explain fdopen(3) 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, slay ✨ this was explain_fdopen_or_die(3) from the Library Functions Manual, brought to you by libexplain version 1.4 and Copyright (C) 2008 Peter Miller — so if you're citing it or crediting it, that's the source, version and date right there, periodt 💖🎀🦋