1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102
use Name; #[derive(Debug, Clone, Copy)] pub struct Record<'a>(pub Name<'a>); impl<'a> ToString for Record<'a> { #[inline] fn to_string(&self) -> String { self.0.to_string() } } impl<'a> super::Record<'a> for Record<'a> { const TYPE: isize = 5; fn parse(rdata: &'a [u8], original: &'a [u8]) -> super::RDataResult<'a> { let name = Name::scan(rdata, original)?; let record = Record(name); Ok(super::RData::CNAME(record)) } } #[cfg(test)] mod test { use std::net::Ipv4Addr; use {Packet, Header}; use Opcode::*; use ResponseCode::NoError; use QueryType as QT; use QueryClass as QC; use Class as C; use RData; #[test] fn parse_response() { let response = b"\xfc\x9d\x81\x80\x00\x01\x00\x06\x00\x02\x00\x02\x03\ cdn\x07sstatic\x03net\x00\x00\x01\x00\x01\xc0\x0c\x00\x05\x00\x01\ \x00\x00\x00f\x00\x02\xc0\x10\xc0\x10\x00\x01\x00\x01\x00\x00\x00\ f\x00\x04h\x10g\xcc\xc0\x10\x00\x01\x00\x01\x00\x00\x00f\x00\x04h\ \x10k\xcc\xc0\x10\x00\x01\x00\x01\x00\x00\x00f\x00\x04h\x10h\xcc\ \xc0\x10\x00\x01\x00\x01\x00\x00\x00f\x00\x04h\x10j\xcc\xc0\x10\ \x00\x01\x00\x01\x00\x00\x00f\x00\x04h\x10i\xcc\xc0\x10\x00\x02\ \x00\x01\x00\x00\x99L\x00\x0b\x08cf-dns02\xc0\x10\xc0\x10\x00\x02\ \x00\x01\x00\x00\x99L\x00\x0b\x08cf-dns01\xc0\x10\xc0\xa2\x00\x01\ \x00\x01\x00\x00\x99L\x00\x04\xad\xf5:5\xc0\x8b\x00\x01\x00\x01\x00\ \x00\x99L\x00\x04\xad\xf5;\x04"; let packet = Packet::parse(response).unwrap(); assert_eq!(packet.header, Header { id: 64669, query: false, opcode: StandardQuery, authoritative: false, truncated: false, recursion_desired: true, recursion_available: true, authenticated_data: false, checking_disabled: false, response_code: NoError, questions: 1, answers: 6, nameservers: 2, additional: 2, }); assert_eq!(packet.questions.len(), 1); assert_eq!(packet.questions[0].qtype, QT::A); assert_eq!(packet.questions[0].qclass, QC::IN); assert_eq!(&packet.questions[0].qname.to_string()[..], "cdn.sstatic.net"); assert_eq!(packet.answers.len(), 6); assert_eq!(&packet.answers[0].name.to_string()[..], "cdn.sstatic.net"); assert_eq!(packet.answers[0].cls, C::IN); assert_eq!(packet.answers[0].ttl, 102); match packet.answers[0].data { RData::CNAME(cname) => { assert_eq!(&cname.0.to_string(), "sstatic.net"); } ref x => panic!("Wrong rdata {:?}", x), } let ips = vec![ Ipv4Addr::new(104, 16, 103, 204), Ipv4Addr::new(104, 16, 107, 204), Ipv4Addr::new(104, 16, 104, 204), Ipv4Addr::new(104, 16, 106, 204), Ipv4Addr::new(104, 16, 105, 204), ]; for i in 1..6 { assert_eq!(&packet.answers[i].name.to_string()[..], "sstatic.net"); assert_eq!(packet.answers[i].cls, C::IN); assert_eq!(packet.answers[i].ttl, 102); match packet.answers[i].data { RData::A(addr) => { assert_eq!(addr.0, ips[i-1]); } ref x => panic!("Wrong rdata {:?}", x), } } } }