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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),
}
}
}
}