0x4E4FTheoretical physicists: Actually...
TimeSquirrelProgrammatically, what does the kernel actually do with data sent to /dev/null? Put it in a temp buffer and just delete it?
BoxscapeProgrammatically, what does the kernel actually do with data sent to /dev/null?
I like to imagine it’s like getting nullified in that olde show ReBoot.
FlipperThe syscall to write passes a buffer and length. If it is Dev null the call just returns without doing anything more.
m_fI was also curious, here’s a good answer:
unix.stackexchange.com/…/how-is-dev-null-implemen…
The implementation is:
static ssize_t write_null(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { return count; }
So it's basically doing nothing and lying about it. 😆
“I accepted all of the bytes you gave me. I didn’t do anything with them, but I accept you gave them to me”.
Could’ve at least say thank you…
It’s open source. If manners are an important feature to you perhaps look into contributing… :)
Yeah, that could actually be fun to be honest, lol 😂. But I just know the PR would be rejected, lol 😂.