native.rb in httpx-0.5.0

- old
+ new

@@ -29,10 +29,22 @@
         timeouts: RESOLVE_TIMEOUT,
         record_types: RECORD_TYPES.keys,
       }.freeze
     end
 
+    # nameservers for ipv6 are misconfigured in certain systems;
+    # this can use an unexpected endless loop
+    # https://gitlab.com/honeyryderchuck/httpx/issues/56
+    DEFAULTS[:nameserver].select! do |nameserver|
+      begin
+        IPAddr.new(nameserver)
+        true
+      rescue IPAddr::InvalidAddressError
+        false
+      end
+    end if DEFAULTS[:nameserver]
+
     DNS_PORT = 53
 
     def_delegator :@connections, :empty?
 
     def initialize(options)
@@ -85,10 +97,10 @@
         end
         transition(:idle)
       else
         if e.respond_to?(:connection) &&
            e.respond_to?(:host)
-          emit_resolve_error(connection, host, e)
+          emit_resolve_error(e.connection, e.host, e)
         else
           @queries.each do |host, connection|
             emit_resolve_error(connection, host, e)
           end
         end