Disable trust-dns on Windows

Closes #431

Cargo.toml

@@ -38,7 +38,7 @@ tokio-rustls = { version = "0.8", optional = true }
 webpki-roots = { version = "0.15", optional = true }
 rustls = { version = "0.14", features = ["dangerous_configuration"], optional = true }
 
-[target.'cfg(not(target_os = "android"))'.dependencies]
+[target.'cfg(not(any(target_os = "android", windows)))'.dependencies]
 trust-dns-resolver = "0.10"
 
 [dev-dependencies]

src/connect.rs

@@ -13,13 +13,13 @@ use bytes::BufMut;
 use std::io;
 use std::sync::Arc;
 
-#[cfg(not(target_os = "android"))]
+#[cfg(not(any(target_os = "android", windows)))]
 use dns::TrustDnsResolver;
 use Proxy;
 
-#[cfg(not(target_os = "android"))]
+#[cfg(not(any(target_os = "android", windows)))]
 type HttpConnector = ::hyper::client::HttpConnector<TrustDnsResolver>;
-#[cfg(target_os = "android")]
+#[cfg(any(target_os = "android", windows))]
 type HttpConnector = ::hyper::client::HttpConnector;
 
 
@@ -74,14 +74,14 @@ impl Connector {
     }
 }
 
-#[cfg(not(target_os = "android"))]
+#[cfg(not(any(target_os = "android", windows)))]
 fn http_connector() -> ::Result<HttpConnector> {
     TrustDnsResolver::new()
         .map(HttpConnector::new_with_resolver)
         .map_err(::error::dns_system_conf)
 }
 
-#[cfg(target_os = "android")]
+#[cfg(any(target_os = "android", windows))]
 fn http_connector() -> ::Result<HttpConnector> {
     Ok(HttpConnector::new(4))
 }

src/error.rs

@@ -140,6 +140,7 @@ impl Error {
             Kind::NativeTls(ref e) => Some(e),
             #[cfg(feature = "rustls-tls")]
             Kind::Rustls(ref e) => Some(e),
+            #[cfg(not(any(target_os = "android", windows)))]
             Kind::DnsSystemConf(ref e) => Some(e),
             Kind::Io(ref e) => Some(e),
             Kind::UrlEncoded(ref e) => Some(e),
@@ -238,6 +239,7 @@ impl fmt::Display for Error {
             Kind::NativeTls(ref e) => fmt::Display::fmt(e, f),
             #[cfg(feature = "rustls-tls")]
             Kind::Rustls(ref e) => fmt::Display::fmt(e, f),
+            #[cfg(not(any(target_os = "android", windows)))]
             Kind::DnsSystemConf(ref e) => {
                 write!(f, "failed to load DNS system conf: {}", e)
             },
@@ -272,6 +274,7 @@ impl StdError for Error {
             Kind::NativeTls(ref e) => e.description(),
             #[cfg(feature = "rustls-tls")]
             Kind::Rustls(ref e) => e.description(),
+            #[cfg(not(any(target_os = "android", windows)))]
             Kind::DnsSystemConf(_) => "failed to load DNS system conf",
             Kind::Io(ref e) => e.description(),
             Kind::UrlEncoded(ref e) => e.description(),
@@ -296,6 +299,7 @@ impl StdError for Error {
             Kind::NativeTls(ref e) => e.cause(),
             #[cfg(feature = "rustls-tls")]
             Kind::Rustls(ref e) => e.cause(),
+            #[cfg(not(any(target_os = "android", windows)))]
             Kind::DnsSystemConf(ref e) => e.cause(),
             Kind::Io(ref e) => e.cause(),
             Kind::UrlEncoded(ref e) => e.cause(),
@@ -322,6 +326,7 @@ pub(crate) enum Kind {
     NativeTls(::native_tls::Error),
     #[cfg(feature = "rustls-tls")]
     Rustls(::rustls::TLSError),
+    #[cfg(not(any(target_os = "android", windows)))]
     DnsSystemConf(io::Error),
     Io(io::Error),
     UrlEncoded(::serde_urlencoded::ser::Error),
@@ -496,6 +501,7 @@ pub(crate) fn url_bad_scheme(url: Url) -> Error {
     Error::new(Kind::UrlBadScheme, Some(url))
 }
 
+#[cfg(not(any(target_os = "android", windows)))]
 pub(crate) fn dns_system_conf(io: io::Error) -> Error {
     Error::new(Kind::DnsSystemConf(io), None)
 }

src/lib.rs

@@ -196,7 +196,7 @@ extern crate serde_urlencoded;
 extern crate tokio;
 #[cfg_attr(feature = "default-tls", macro_use)]
 extern crate tokio_io;
-#[cfg(not(target_os = "android"))]
+#[cfg(not(any(target_os = "android", windows)))]
 extern crate trust_dns_resolver;
 extern crate url;
 extern crate uuid;
@@ -238,7 +238,7 @@ mod connect;
 mod connect_async;
 mod body;
 mod client;
-#[cfg(not(target_os = "android"))]
+#[cfg(not(any(target_os = "android", windows)))]
 mod dns;
 mod into_url;
 mod proxy;