Re: Then there's PATH_MAX

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!