Imports name this capability’s declared dependencies, which fune builds next to it in your project; each one links to its page.
use super::funejson::Value; ← the fune runtime: the JSON value the test vectors use; fune build keeps it only where a signature takes one
use super::net_cidr_cidr_info::cidr_info;
use super::net_ipv4::{format_ipv4, parse_ipv4}; ← from net.ipv4 ^1.0.0 · built alongside by fune
/// Every usable host address of an IPv4 block, in order, for a sweep.
///
/// The limit is required, not optional: a typo of /8 for /28 is sixteen
/// million addresses, and the caller should hear about it before allocating
/// them.
///
/// # Panics
/// Panics on a malformed or IPv6 block, a max_count below 1, or a block with
/// more hosts than max_count.
pub fn cidr_hosts(cidr: &str, max_count: i64) -> Vec<String> {
if max_count < 1 {
panic!("maxCount must be a whole number of at least 1, received {}", max_count);
}
let info = cidr_info(cidr);
if info.host_count > max_count {
panic!(
"{} has {} hosts, more than maxCount {}",
info.cidr, info.host_count, max_count
);
}
let first = parse_ipv4(&info.first_host);
(0..info.host_count).map(|i| format_ipv4(first + i)).collect()
}
pub fn fune_vector(args: &[Value]) -> Value {
let max_count = match &args[1] {
Value::Int(i) => *i,
other => panic!("maxCount must be a whole number of at least 1, received {}", other),
};
Value::Arr(cidr_hosts(args[0].as_str(), max_count).iter().map(|h| Value::str(h)).collect())
}