psnet 1.1.0

A beautiful real-time TUI network monitor for Windows — 9 tabs, GeoIP, device discovery, firewall, topology & more
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

/// Format bytes-per-second into human-readable speed string.
pub fn format_speed(bytes_per_sec: f64) -> String {
    if bytes_per_sec < 1024.0 {
        format!("{:.0} B/s", bytes_per_sec)
    } else if bytes_per_sec < 1024.0 * 1024.0 {
        format!("{:.1} KB/s", bytes_per_sec / 1024.0)
    } else if bytes_per_sec < 1024.0 * 1024.0 * 1024.0 {
        format!("{:.2} MB/s", bytes_per_sec / (1024.0 * 1024.0))
    } else {
        format!("{:.2} GB/s", bytes_per_sec / (1024.0 * 1024.0 * 1024.0))
    }
}

/// Format a byte count into human-readable size string.
pub fn format_bytes(bytes: u64) -> String {
    if bytes < 1024 {
        format!("{} B", bytes)
    } else if bytes < 1024 * 1024 {
        format!("{:.1} KB", bytes as f64 / 1024.0)
    } else if bytes < 1024 * 1024 * 1024 {
        format!("{:.2} MB", bytes as f64 / (1024.0 * 1024.0))
    } else {
        format!("{:.2} GB", bytes as f64 / (1024.0 * 1024.0 * 1024.0))
    }
}

/// Convert a raw network-byte-order port (u32 from Windows API) to host u16.
pub fn ntohs(port: u32) -> u16 {
    ((port & 0xFF) << 8 | (port >> 8) & 0xFF) as u16
}