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extern crate libc;
use self::libc::{uname, utsname};
use super::Uname;
use std::borrow::Cow;
use std::ffi::CStr;
use std::io;
use std::mem;
macro_rules! cstr2cow {
($v:expr) => {
unsafe { CStr::from_ptr($v.as_ref().as_ptr()).to_string_lossy() }
};
}
pub struct PlatformInfo {
inner: utsname,
}
impl PlatformInfo {
pub fn new() -> io::Result<Self> {
unsafe {
let mut uts: utsname = mem::uninitialized();
if uname(&mut uts) == 0 {
Ok(Self { inner: uts })
} else {
Err(io::Error::last_os_error())
}
}
}
}
impl Uname for PlatformInfo {
fn sysname(&self) -> Cow<str> {
cstr2cow!(self.inner.sysname)
}
fn nodename(&self) -> Cow<str> {
cstr2cow!(self.inner.nodename)
}
fn release(&self) -> Cow<str> {
cstr2cow!(self.inner.release)
}
fn version(&self) -> Cow<str> {
cstr2cow!(self.inner.version)
}
fn machine(&self) -> Cow<str> {
cstr2cow!(self.inner.machine)
}
}