explain_lchownat_or_die(3)

💖 explain_lchownat_or_die(3) 💖

okay bestie, so this is a page from the Library Functions Manual and it's all about explain_lchownat_or_die — the glow-up wrapper around the lchownat(2) system call that catches errors and explains them instead of leaving you confused and crying. 🫶

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✨ NAME ✨

explain_lchownat_or_die — Execute lchownat(2) and report errors 💅

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🎀 SYNOPSIS 🎀

#include <libexplain/lchownat.h>
void explain_lchownat_or_die(int fildes, const char *pathname, int uid,
       int gid);
int explain_lchownat_on_error(int fildes, const char *pathname, int uid,
       int gid);

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🦋 DESCRIPTION 🦋

so like, there are two functions here and they're sisters, not twins, okay? let's get into it.

The explain_lchownat_or_die function is used to call the lchownat(2) system call. and the way it works? if it fails, an explanation gets printed to stderr, obtained from the explain_lchownat(3) function, and then the process terminates by calling exit(EXIT_FAILURE). yeah. it does not play. 💀

The explain_lchownat_on_error function is also used to call the lchownat(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_lchownat(3) function — but this one is chill, it still returns to the caller. 🧚

now for the arguments, one by one, no skipping:

• fildes — The fildes, exactly as to be passed to the lchownat(2) system call. like, exactly. don't get creative.
• pathname — The pathname, exactly as to be passed to the lchownat(2) system call.
• uid — The uid, exactly as to be passed to the lchownat(2) system call.
• gid — The gid, exactly as to be passed to the lchownat(2) system call.

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🌈 RETURN VALUE 🌈

The explain_lchownat_or_die function only returns on success — see lchownat(2) for more information. On failure, prints an explanation and exits, it does not return. so if it comes back to you, that's a slay. if it doesn't... well. 🙈

The explain_lchownat_on_error function always returns the value return by the wrapped lchownat(2) system call. always. periodt. 👑

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⭐ EXAMPLE ⭐

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

explain_lchownat_or_die(fildes, pathname, uid, gid);

look at her. iconic. no error handling code, no nothing, she just handles it for you. main character energy fr fr. 🔥

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👑 SEE ALSO 👑

• lchownat(2) — Execute lchownat(2)
• explain_lchownat(3) — explain lchownat(2) errors
• exit(2) — terminate the calling process

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💜 COPYRIGHT 💜

libexplain version 1.4 Copyright (C) 2013 Peter Miller

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okay that's the whole page bestie, you ate that reading session, no cap 💖✨🌸 and yes — this absolute gem comes to you courtesy of libexplain version 1.4, with Copyright (C) 2013 Peter Miller holding it down. that's a wrap, mwah 💅🎀🦋