47 lines
1.1 KiB
Rust
47 lines
1.1 KiB
Rust
extern crate syscall;
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use std::os::unix::process::CommandExt;
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use std::process::Command;
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pub fn main() {
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let names = [
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"file",
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"rand",
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"tcp",
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"udp"
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];
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let command = "sh";
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let pid = unsafe { syscall::clone(0).unwrap() };
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if pid == 0 {
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let mut name_ptrs = Vec::new();
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for name in names.iter() {
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name_ptrs.push([name.as_ptr() as usize, name.len()]);
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}
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syscall::setns(&name_ptrs).unwrap();
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println!("Container enter: {}", command);
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let err = Command::new(command).exec();
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panic!("contain: failed to launch {}: {}", command, err);
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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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loop {
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let mut c_status = 0;
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let c_pid = syscall::waitpid(0, &mut c_status, syscall::WNOHANG).unwrap();
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if c_pid == 0 {
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break;
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} else {
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println!("Container zombie {}: {:X}", c_pid, c_status);
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}
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}
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println!("Container exited: {:X}", status);
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}
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}
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