36 lines
993 B
Rust
36 lines
993 B
Rust
extern crate syscall;
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use std::fs::File;
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use std::io::{BufRead, BufReader, Read};
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pub fn main() {
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let pid = unsafe { syscall::clone(0).unwrap() };
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if pid == 0 {
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let rand = b"rand";
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syscall::setns(&[[rand.as_ptr() as usize, rand.len()]]).unwrap();
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println!("Child Namespace:");
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let file = BufReader::new(File::open("sys:scheme").unwrap());
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for line in file.lines() {
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let line = line.unwrap();
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println!("{}", line);
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}
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let mut rand = File::open("rand:").unwrap();
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let mut byte = [0];
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rand.read(&mut byte).unwrap();
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println!("Rand: {}", byte[0]);
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} else {
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let mut status = 0;
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syscall::waitpid(pid, &mut status, 0).unwrap();
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println!("Parent Namespace:");
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let file = BufReader::new(File::open("sys:scheme").unwrap());
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for line in file.lines() {
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let line = line.unwrap();
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println!("{}", line);
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}
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}
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}
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