GETHOSTID(3POSIX)

📦 version 2017a, in debian bookworm, debian trixie, ubuntu jammy, ubuntu noble, ubuntu resolute, ubuntu stonking

💖 GETHOSTID(3POSIX) — the POSIX Programmer's Manual, bestie edition 💖

okay so this page lives in the POSIX Programmer's Manual, and before we even get to the good stuff, there's a little heads-up section. Welcome to the group chat, let's get into it 🫶

✨ PROLOG ✨

Real talk first: this manual page is part of the POSIX Programmer's Manual. But — and this is important — the Linux implementation of this interface may differ, so if you're on Linux, go consult the corresponding Linux manual page for the deets on how Linux actually behaves. Or, plot twist, the interface might not even be implemented on Linux at all. So check before you commit, queen 💅

🌸 NAME 🌸

gethostid — get an identifier for the current host

✨ SYNOPSIS ✨

#include <unistd.h>

long gethostid(void);

💖 DESCRIPTION 💖

So basically, the gethostid() function shall retrieve a 32-bit identifier for the current host. That's it. That's the whole vibe. 32 bits of "yeah, this machine" 🎀

👑 RETURN VALUE 👑

Upon successful completion, gethostid() shall return an identifier for the current host. Slay. No cap, that's the entire contract ✨

💀 ERRORS 💀

No errors are defined. Not a single one. She simply does not do errors. Iconic behavior, honestly.

The following sections are informative. (Translation: the plot is over, this is bonus content 🦋)

🍓 EXAMPLES 🍓

None.

The void. The emptiness. There are literally no examples here, bestie, and I'm not gonna make one up because that would be inventing facts and we do NOT do that 🙈

🌈 APPLICATION USAGE 🌈

Here's the tea: this volume of POSIX.1‐2017 does not define the domain in which the return value is unique. So like… it's an identifier, but unique where, exactly? Not specified. It's giving mystery. It's giving "trust the process" 😭

🧚 RATIONALE 🧚

None.

No reasoning given. She said what she said and moved on 💜

🦋 FUTURE DIRECTIONS 🦋

None.

The future is unspecified. Live in the moment, periodt ✨

🔥 SEE ALSO 🔥

  • initstate()
  • The Base Definitions volume of POSIX.1‐2017, <unistd.h>

okay legal moment, everyone gather round, this part matters and I'm keeping every single word of the facts 🫶

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group.

And here's the important part: in the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. So if they disagree, the original wins, no debate. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .

and that's the whole page, bestie 🎀 this lil beauty dropped from IEEE/The Open Group, 2017 — mwah, thank you for your service, see you in the next man page 💖✨👑

📦 where this page comes from