explain_setgid_or_die(3)

💅 explain_setgid_or_die — the manual page, bestie edition

okay so. you're reading explain_setgid_or_die(3), from the Library Functions Manual, and honestly? you're in the right place. this is the libexplain glow-up for setgid(2), and it's giving "error messages that actually tell you what went wrong." iconic behaviour, no cap. 🎀

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✨ NAME ✨

explain_setgid_or_die — set group identity and report errors 💖

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🦋 SYNOPSIS 🦋

#include <libexplain/setgid.h>
void explain_setgid_or_die(gid_t gid);
int explain_setgid_on_error(gid_t gid);

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🌸 DESCRIPTION 🌸

so here's the tea. 🍓

The explain_setgid_or_die function is used to call the setgid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_setgid(3) function, and then the process terminates by calling exit(EXIT_FAILURE).

like. it does the thing, and if the thing fails it tells you why and then immediately exits. dramatic? yes. useful? also yes. 💀

The explain_setgid_on_error function is used to call the setgid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_setgid(3) function, but still returns to the caller.

so this one is the chill sibling — same explanation energy, but it hands control back to you instead of yeeting the process. 🫶

• gid — The gid, exactly as to be passed to the setgid(2) system call. literally pass it straight through, no edits, no remix. ⭐

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👑 RETURN VALUE 👑

The explain_setgid_or_die function only returns on success, see setgid(2) for more information. On failure, prints an explanation and exits, it does not return.

bestie. if it fails, there is no return. it's gone. it left the chat. 💅

The explain_setgid_on_error function always returns the value return by the wrapped setgid(2) system call.

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🔥 EXAMPLE 🔥

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

explain_setgid_or_die(gid);

that's it. that's the whole vibe. ✨

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🌈 SEE ALSO 🌈

• setgid(2) — set group identity
• explain_setgid(3) — explain setgid(2) errors
• exit(2) — terminate the calling process

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💜 COPYRIGHT 💜

libexplain version 1.4 Copyright (C) 2012 Peter Miller

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and that's the page, babes 🧚 go forth, set that group identity, and let libexplain narrate your failures in exquisite detail. mwah. 💖

explain_setgid_or_die(3) — Library Functions Manual, signing off. 🌸