use-cidr

use-cidr provides small helpers for parsing CIDR notation and validating prefix lengths.

Experimental: this crate is below 0.3.0 and the API may change.

Example Usage

use use_cidr::{format_cidr, parse_cidr};

let block = parse_cidr("192.168.0.0/24").unwrap();

assert_eq!(block.prefix, 24);
assert_eq!(format_cidr(&block), "192.168.0.0/24");

Scope

• CIDR parsing for IPv4 and IPv6 blocks.
• Prefix-length validation helpers.

Non-goals

• Full subnet math.
• Route table implementation.
• IP range expansion.
• Firewall logic.

License

Licensed under MIT OR Apache-2.0.