execFileSync() causes different behaviour for some software

[showengineer]

Version

v14.17.2

Platform

Linux SRV01 4.19.66-v7+ #1253 SMP Thu Aug 15 11:49:46 BST 2019 armv7l GNU/Linux

Subsystem

child_process

What steps will reproduce the bug?

I'll use an example where this goes wrong.

1. Compile test.c for your own platform
2. Create a file, the length doesn't matter.
3. Run the compiled binary using ./bin the_file with your favorite shell. Observe as it prints the size
4. Run the compiled binary using child_process.execFileSync("./bin", "the_file");. Observe as it prints the size.

How often does it reproduce? Is there a required condition?

So far only when I run it as a script (node app.js)

What is the expected behavior?

Both output the same length.

What do you see instead?

When executed with execSync, the calculated length is always 0.

Additional information

No response

[MicroDroid]

Where can I find test.c?

[showengineer]

It's a clickable link. But here it is anyways: https://gist.github.com/0x2b00b1e5/367630379248098a8a6ed16226997a51

[MicroDroid]

Ah, the mobile app did not underline that; Got it 👍

[liuxingbaoyu]

Have you tried using absolute paths?

child_process.execFileSync("./bin", "path/path/the_file");