Error in dns.lookup for ipv6 hostnames

[bondehagen]

What version of Bun is running?

1.1.38

What platform is your computer?

x64

What steps can reproduce the bug?

import { dns } from "bun"

const hostname = "2001:db8:0:0:1:0:0:2";
const address = await dns.lookup(hostname, {
	family: 6
})
console.log("lookup", address);

What is the expected behavior?

lookup [
  {
    address: "2001:db8::1:0:0:2",
    family: 6,
    ttl: 0,
  }
]

What do you see instead?

lookup [
  {
    address: "2001:db8::1:2",
    family: 6,
    ttl: 0,
  }
]

Additional information

This happens with hostnames that resolves to ipv6 addresses that get compressed wrong when you have multiple zero runs. I tracked it down to the standard lib in Zig and made a pull request there ziglang/zig#22440

This leads to errors for other api's as well that depend on ipv6 from zig.