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Last update: 09/05/2025

async-net

Async networking primitives for TCP/UDP/Unix communication

Latest version: 2.0.0 registry icon
Maintenance score
36
Safety score
100
Popularity score
72
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Security
  Vulnerabilities
Version Suggest Low Medium High Critical
2.0.0 0 0 0 0 0
1.8.0 0 0 0 0 0
1.7.0 0 0 0 0 0
1.6.1 0 0 0 0 0
1.6.0 0 0 0 0 0
1.5.0 0 0 0 0 0
1.4.7 0 0 0 0 0
1.4.6 0 0 0 0 0
1.4.5 0 0 0 0 0
1.4.4 0 0 0 0 0
1.4.3 0 0 0 0 0
1.4.2 0 0 0 0 0
1.4.1 0 0 0 0 0
1.4.0 0 0 0 0 0
1.3.0 0 0 0 0 0
1.2.0 0 0 0 0 0
1.1.0 0 0 0 0 0
1.0.0 0 0 0 0 0
0.1.2 0 0 0 0 0
0.1.1 0 0 0 0 0
0.1.0 0 0 0 0 0
0.0.0 0 0 0 0 0

Stability
Latest release:

2.0.0 - This version may not be safe as it has not been updated for a long time. Find out if your coding project uses this component and get notified of any reported security vulnerabilities with Meterian-X Open Source Security Platform

Licensing

Maintain your licence declarations and avoid unwanted licences to protect your IP the way you intended.

Apache-2.0   -   Apache License 2.0

Not a wildcard

Not proprietary

OSI Compliant

MIT   -   MIT License

Not a wildcard

Not proprietary

OSI Compliant

async-net

Build License Cargo Documentation

Async networking primitives for TCP/UDP/Unix communication.

This crate is an async version of std::net and std::os::unix::net.

Implementation

This crate uses async-io for async I/O and blocking for DNS lookups.

Examples

A simple UDP server that echoes messages back to the sender:

use async_net::UdpSocket;

let socket = UdpSocket::bind("127.0.0.1:8080").await?;
let mut buf = vec![0u8; 1024];

loop {
    let (n, addr) = socket.recv_from(&mut buf).await?;
    socket.send_to(&buf[..n], &addr).await?;
}

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.