Changed format of DNS-listen options. Added DNS-thread count options to config.

src/dns/context.rs

@@ -45,8 +45,7 @@ pub struct ServerContext {
     pub cache: SynchronizedCache,
     pub filters: Vec<Box<dyn DnsFilter + Sync + Send>>,
     pub client: Box<dyn DnsClient + Sync + Send>,
-    pub dns_host: String,
-    pub dns_port: u16,
+    pub dns_listen: String,
     pub api_port: u16,
     pub resolve_strategy: ResolveStrategy,
     pub allow_recursive: bool,
@@ -70,8 +69,7 @@ impl ServerContext {
             cache: SynchronizedCache::new(),
             filters: Vec::new(),
             client: Box::new(DnsNetworkClient::new(10000 + (rand::random::<u16>() % 20000))),
-            dns_host: String::from("0.0.0.0"),
-            dns_port: 53,
+            dns_listen: String::from("0.0.0.0:53"),
             api_port: 5380,
             resolve_strategy: ResolveStrategy::Recursive,
             allow_recursive: true,
@@ -125,8 +123,7 @@ pub mod tests {
             cache: SynchronizedCache::new(),
             filters: Vec::new(),
             client: Box::new(DnsStubClient::new(callback)),
-            dns_host: String::from("0.0.0.0"),
-            dns_port: 53,
+            dns_listen: String::from("0.0.0.0:53"),
             api_port: 5380,
             resolve_strategy: ResolveStrategy::Recursive,
             allow_recursive: true,