1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20

use std::io;

use heim_runtime as rt;

use crate::{Pid, ProcessError, ProcessResult};

pub use crate::sys::unix::{Environment, IntoEnvironmentIter};

pub async fn environment(pid: Pid) -> ProcessResult<Environment> {
    let path = format!("/proc/{}/environ", pid);

    match rt::fs::read(path).await {
        Ok(contents) => Ok(Environment::from_bytes(&contents)),
        Err(e) if e.kind() == io::ErrorKind::NotFound => Err(ProcessError::NoSuchProcess(pid)),
        Err(e) if e.kind() == io::ErrorKind::PermissionDenied => {
            Err(ProcessError::AccessDenied(pid))
        }
        Err(e) => Err(e.into()),
    }
}