From: Farley Flud <fsquared@fsquared.linux>
Subject: Re: Then there's PATH_MAX
Newsgroups: comp.os.linux.advocacy
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Date: Tue, 10 Dec 2024 13:12:03 +0000
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On Mon, 09 Dec 2024 06:09:40 +0000, vallor wrote:

> 
> #include <stdio.h>
> #include <limits.h>
> 
> #ifdef __linux__
> #include <linux/limits.h>
> #endif
> 
> int main (void)
> {
> 
> printf("%d\n",PATH_MAX);
> 
> return 0;
> }
> 

This is bullshit.

PATH_MAX is filesystem dependent and since GNU/Linux, unlike that
pile of garbage Microslop, supports many, many different filesystems
the PATH_MAX macro is unreliable and may be undefined on some machines.

The best and only way to determine file name/path parameters is to
use "pathconf" of "fpathconf:"

https://pubs.opengroup.org/onlinepubs/9799919799/

From the link:

"The pathconf() function was proposed immediately after the sysconf() 
function when it was realized that some configurable values may differ 
across file system, directory, or device boundaries."


-- 
Hail Linux!  Hail FOSS!  Hail Stallman!