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/// Something that can go wrong making a DNS request.
#[derive(Debug)]
pub enum Error {
/// The data in the response did not parse correctly from the DNS wire
/// protocol format.
WireError(dns::WireError),
/// There was a problem with the network making a TCP or UDP request.
NetworkError(std::io::Error),
/// Not enough information was received from the server before a `read`
/// call returned zero bytes.
TruncatedResponse,
/// There was a problem making a TLS request.
#[cfg(feature = "with_tls")]
TlsError(native_tls::Error),
/// There was a problem _establishing_ a TLS request.
#[cfg(feature = "with_tls")]
TlsHandshakeError(native_tls::HandshakeError<std::net::TcpStream>),
/// There was a problem decoding the response HTTP headers or body.
#[cfg(feature = "with_https")]
HttpError(httparse::Error),
/// The HTTP response code was something other than 200 OK, along with the
/// response code text, if present.
#[cfg(feature = "with_https")]
WrongHttpStatus(u16, Option<String>),
}
// From impls
impl From<dns::WireError> for Error {
fn from(inner: dns::WireError) -> Self {
Self::WireError(inner)
}
}
impl From<std::io::Error> for Error {
fn from(inner: std::io::Error) -> Self {
Self::NetworkError(inner)
}
}
#[cfg(feature = "with_tls")]
impl From<native_tls::Error> for Error {
fn from(inner: native_tls::Error) -> Self {
Self::TlsError(inner)
}
}
#[cfg(feature = "with_tls")]
impl From<native_tls::HandshakeError<std::net::TcpStream>> for Error {
fn from(inner: native_tls::HandshakeError<std::net::TcpStream>) -> Self {
Self::TlsHandshakeError(inner)
}
}
#[cfg(feature = "with_https")]
impl From<httparse::Error> for Error {
fn from(inner: httparse::Error) -> Self {
Self::HttpError(inner)
}
}
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