blocking/
blocking.rs

1use std::convert::TryInto;
2use std::env;
3
4use nut_client::blocking::Connection;
5use nut_client::{Auth, ConfigBuilder};
6
7fn main() -> nut_client::Result<()> {
8    let host = env::var("NUT_HOST").unwrap_or_else(|_| "localhost".into());
9    let port = env::var("NUT_PORT")
10        .ok()
11        .map(|s| s.parse::<u16>().ok())
12        .flatten()
13        .unwrap_or(3493);
14
15    let username = env::var("NUT_USER").ok();
16    let password = env::var("NUT_PASSWORD").ok();
17    let auth = username.map(|username| Auth::new(username, password));
18
19    let config = ConfigBuilder::new()
20        .with_host((host, port).try_into().unwrap_or_default())
21        .with_auth(auth)
22        .with_debug(false) // Turn this on for debugging network chatter
23        .build();
24
25    let mut conn = Connection::new(&config)?;
26
27    // Get server information
28    println!("NUT server:");
29    println!("\tVersion: {}", conn.get_server_version()?);
30    println!("\tNetwork Version: {}", conn.get_network_version()?);
31
32    // Print a list of all UPS devices
33    println!("Connected UPS devices:");
34    for (name, description) in conn.list_ups()? {
35        println!("\t- Name: {}", name);
36        println!("\t  Description: {}", description);
37        println!("\t  Number of logins: {}", conn.get_num_logins(&name)?);
38
39        // Get list of mutable variables
40        let mutable_vars = conn.list_mutable_vars(&name)?;
41
42        // List UPS variables (key = val)
43        println!("\t  Mutable Variables:");
44        for var in mutable_vars.iter() {
45            println!("\t\t- {}", var);
46            println!("\t\t  {:?}", conn.get_var_type(&name, var.name())?);
47        }
48
49        // List UPS immutable properties (key = val)
50        println!("\t  Immutable Properties:");
51        for var in conn.list_vars(&name)? {
52            if mutable_vars.iter().any(|v| v.name() == var.name()) {
53                continue;
54            }
55            println!("\t\t- {}", var);
56            println!("\t\t  {:?}", conn.get_var_type(&name, var.name())?);
57        }
58
59        // List UPS commands
60        println!("\t  Commands:");
61        for cmd in conn.list_commands(&name)? {
62            let description = conn.get_command_description(&name, &cmd)?;
63            println!("\t\t- {} ({})", cmd, description);
64        }
65    }
66
67    // Gracefully shut down the connection using the `LOGOUT` command
68    conn.close()
69}
blocking/blocking.rs

blocking/
blocking.rs
