[NaCl SDK] Fix bug in TCPNode::Connect

native_client_sdk/src/libraries/nacl_io/socket/tcp_node.cc

Index: native_client_sdk/src/libraries/nacl_io/socket/tcp_node.cc
diff --git a/native_client_sdk/src/libraries/nacl_io/socket/tcp_node.cc b/native_client_sdk/src/libraries/nacl_io/socket/tcp_node.cc
index df7c8670b812caef41352c6ceec5db9fc6dc2633..de05684a1d81b1ac77d9448a9d6ac23e0f87b07f 100644
--- a/native_client_sdk/src/libraries/nacl_io/socket/tcp_node.cc
+++ b/native_client_sdk/src/libraries/nacl_io/socket/tcp_node.cc
@@ -480,6 +480,12 @@ Error TcpNode::Connect(const HandleAttr& attr,
     return err;
   }
 
+  // Make sure the connection succeeded.
+  if (last_errno_ != 0) {
+    ConnectFailed_Locked();
+    return last_errno_;
+  }
+
   ConnectDone_Locked();
   return 0;
 }