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resolve/
resolve.rs

1use std::net::UdpSocket;
2use rand::Rng;
3use rusdig::{Query, RecordType};
4
5fn main() {
6	let query = Query::for_name("google.de", RecordType::A);
7	let bytes = query.as_bytes().unwrap();
8
9	let socket = UdpSocket::bind(format!("0.0.0.0:{}", rand::thread_rng().gen_range(1001..64000))).unwrap();
10	socket.connect("1.1.1.1:53").unwrap();
11	socket.send(&bytes).unwrap();
12
13	println!("Sent request");
14
15	let mut buf = vec![0u8; 1024];
16	let recvd = socket.recv(buf.as_mut_slice()).unwrap();
17	buf.truncate(recvd);
18
19	println!("Received response of length ({})", recvd);
20
21	let query = Query::from_bytes(&buf).unwrap();
22
23	for (i, question) in query.resource_queries.iter().enumerate() {
24		println!("Question #{} of Type '{}':", i, question.ty_str().unwrap_or("NOT IMPLEMENTED"));
25		println!("  - For Name: {}", question.name());
26	}
27
28	for (i, answer) in query.resource_answers.iter().enumerate() {
29		println!("Answer #{}:", i);
30		let entry_ty = answer.entry_type();
31
32		match entry_ty {
33			Some(RecordType::A | RecordType::NS) => {
34				println!("  - IPv4: {}", answer.data_as_ipv4().unwrap());
35			}
36			Some(RecordType::AAAA) => {
37				println!("  - IPv6: {}", answer.data_as_ipv6().unwrap());
38			}
39			_ => {
40				println!("  - Data: {}", answer.data_as_text().unwrap());
41			}
42		}
43	}
44
45	for (i, authoritative) in query.resource_authorities.iter().enumerate() {
46		println!("Authority #{}: ", i);
47		println!("  - For Name: {}", authoritative.name());
48		println!("  - Primary Name Server: {}", authoritative.primary_ns());
49		println!("  - Responsible Authority Mailbox: {}", authoritative.responsible_mail());
50	}
51}