IF_FREENAMEINDEX(3P)

📦 version 2017a, in alpine 3.22, alpine 3.23, alpine 3.24, arch rolling, nixpkgs unstable, opensuse-leap 16.0

💖 IF_FREENAMEINDEX(3P) — the POSIX Programmer's Manual, but make it make sense 💖

okay bestie, welcome to if_freenameindex from the POSIX Programmer's Manual (yes that's the manual name, we're keeping it cute and keeping it real) 🌸

🫶 PROLOG (the lil heads-up)

So like, this manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ — so go consult the corresponding Linux manual page for the deets on Linux behavior — or honestly the interface may not be implemented on Linux at all. vibe check your platform first, no cap. 💀

✨ NAME ✨

if_freenameindex — free memory allocated by if_nameindex

🌈 SYNOPSIS 🌈

#include <net/if.h>

void if_freenameindex(struct if_nameindex *ptr);

👑 DESCRIPTION 👑

So the if_freenameindex() function shall free the memory that if_nameindex() allocated. That's it, that's the whole job, and she does it flawlessly 💅

The ptr argument shall be a pointer that was returned by if_nameindex(). Like, that specific one. The one you got back. Don't get creative with it, bestie.

After if_freenameindex() has been called, the application shall not use the array of which ptr is the address. It's gone. It's in the past. Do not touch it. Touching it is not the move. 🚫

🎀 RETURN VALUE 🎀

None. Nothing. She gives you nothing back and that's on purpose. ✨

💅 ERRORS 💅

No errors are defined. Zero. None. Not a single one. iconic behavior honestly.

The following sections are informative. (iykyk)

🦋 EXAMPLES 🦋

None. 😭

🌸 APPLICATION USAGE 🌸

None. 🫶

🧚 RATIONALE 🧚

None. 🙈

⭐ FUTURE DIRECTIONS ⭐

None. 💜

🔥 SEE ALSO 🔥

  • getsockopt()
  • if_indextoname()
  • if_nameindex()
  • if_nametoindex()
  • setsockopt()

Also the Base Definitions volume of POSIX.1‐2017, <net_if.h> — go read her, she's serving 📚

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.

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. 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 . 🐛

IEEE/The Open Group — 2017 💫 that's the source, the version, and the date of this whole page btw, so like, shoutout to them for the lore. mwah, bye bestie! 💋 stay safe out there and always free your memory 🌈

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