Returns ip advanced by increment, using plain IPv4 (uint32) math.

Probes every prefix with check and writes the passing /24 blocks, sorted, to outputFile. The label only appears in the progress output.

Expands the prefixes into unique, sorted /24 blocks and writes them to outputFile. The blocks are also returned so callers can reuse them without re-r

Generates a random ephemeral keypair.

Downloads the BGP table and returns the IPv4 prefixes that belong to one of the given ASNs.

Performs a WireGuard handshake with the server and returns the round-trip time on success.

Reports whether any sampled IP in the /24 passes check. The probes run concurrently, so it returns as soon as one of them succeeds.

Sends every /24 block inside prefix to out. Anything already /24 or smaller collapses to the single /24 that covers it.

Reports whether url returns a real Cloudflare trace body. Checking the body, not just the 200 status, keeps an unrelated web server on the same IP fro

Builds a static keypair from a base64-encoded private key.

Encodes n as little-endian bytes.

Reports whether ip serves a Cloudflare /cdn-cgi/trace response, retrying a few times before giving up.

Reports whether a WireGuard handshake with the WARP peer succeeds on any of the scanned ports.