EXPLAIN_FDOPENDIR_OR_DIE(3)

💖 explain_fdopendir_or_die — Library Functions Manual 💖

okay bestie, sit down, hydrate, and let me tell you about explain_fdopendir_or_die(3). it's giving "open a directory and report errors" and honestly? iconic. no cap.

---

✨ NAME ✨

explain_fdopendir_or_die — open a directory and report errors 🫶

---

✨ SYNOPSIS ✨

#include <libexplain/fdopendir.h>
DIR *explain_fdopendir_or_die(int fildes);
DIR *explain_fdopendir_on_error(int fildes);

like yes, two functions, one header, we love a duo 👑

---

✨ DESCRIPTION ✨

so the explain_fdopendir_or_die function is literally there to call the fdopendir(3) system call. but here's the tea ☕ — when it fails, it prints an explanation to stderr, which it gets from the explain_fdopendir(3) function, and then the process terminates by calling exit(EXIT_FAILURE). it's dramatic, it's final, it's a whole exit. 💀

and then there's explain_fdopendir_on_error, the chill one. it also calls the fdopendir(3) system call, and on failure it also prints an explanation to stderr (also obtained from explain_fdopendir(3))… but it still returns to the caller. no exit, no drama, just vibes and an error message. 🌸

• fildes — the fildes, exactly as to be passed to the fdopendir(3) system call. like, exactly. do not freestyle it. 💅

---

✨ RETURN VALUE ✨

the explain_fdopendir_or_die function only returns on success — go peek at fdopendir(3) for more info on that. on failure it prints an explanation and exits. it does not return. at all. ever. periodt. 🙈

the explain_fdopendir_on_error function always returns the value returned by the wrapped fdopendir(3) system call. reliable queen. 👑

---

✨ EXAMPLE ✨

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

DIR *result = explain_fdopendir_or_die(fildes);

look at her go. short, sweet, absolutely slaying. ✨

---

✨ SEE ALSO ✨

• fdopendir(3) — open a directory
• explain_fdopendir(3) — explain fdopendir(3) errors
• exit(2) — terminate the calling process

---

✨ COPYRIGHT ✨

libexplain version 1.4 Copyright (C) 2009 Peter Miller

---

and that's the whole page bestie 🎀 this was explain_fdopendir_or_die(3) from the Library Functions Manual, brought to you by libexplain version 1.4, copyright (C) 2009 Peter Miller — mwah, go call your syscalls responsibly, i'm obsessed with you 🦋💜