uname.rs

extern crate libc;
extern crate itertools;

use libc::{utsname, uname};
use std::ffi::CStr;
use itertools::Itertools;

fn array_to_string(slice:&[i8]) -> String {
    slice.iter().take_while(|&x| *x != 0).map(|&a| a as u8 as char).join("")
}

unsafe fn u8_to_i8(a:&[i8]) -> &[u8] {
	std::slice::from_raw_parts(a.as_ptr() as *const u8, a.len())
}

fn main() {
	unsafe {
	    let mut u:utsname = std::mem::uninitialized();
	    if uname(&mut u) == 0 {
	    	println!("sysname = {:?}", CStr::from_bytes_with_nul(u8_to_i8(&u.sysname)));
	    	println!("nodename = {:?}", CStr::from_bytes_with_nul(u8_to_i8(&u.nodename)));
	    	println!("release = {:?}", array_to_string(&u.release));
	    	println!("version = {:?}", array_to_string(&u.version));
	    	println!("machine = {:?}", array_to_string(&u.machine));
	    }
	}
}