lib/socket: set `last_error` on failed hostname lookups

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/socket/socket.nit b/lib/socket/socket.nit
index 4885805..7791159 100644 (file)
--- a/lib/socket/socket.nit
+++ b/lib/socket/socket.nit
@@ -71,7 +71,19 @@ class TCPStream
                        closed = true
                        return
                end
-               var hostname = socket.gethostbyname(host)
+
+               var hostname = sys.gethostbyname(host.to_cstring)
+               if hostname.address_is_null then
+                       # Error in name lookup
+                       var err = sys.h_errno
+                       last_error = new IOError(err.to_s)
+
+                       closed = true
+                       end_reached = true
+
+                       return
+               end
+
                addrin = new NativeSocketAddrIn.with_hostent(hostname, port)
 
                address = addrin.address