[NaCl SDK] Fix bug in TCPNode::Connect

native_client_sdk/src/tests/nacl_io_socket_test/socket_test.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <arpa/inet.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <netinet/in.h>
 #include <pthread.h>
 #include <sys/types.h>
@@ skipping 374 matching lines @@
   ASSERT_EQ(1, ki_poll(&pollfd, 1, -1));
   ASSERT_EQ(POLLOUT, pollfd.revents);
 
   // Attempts to connect again should yield EISCONN
   ASSERT_EQ(-1, ki_connect(sock_, (sockaddr*) &addr, addrlen));
   ASSERT_EQ(EISCONN, errno);
 
   // And SO_ERROR should be 0.
 }
 
+TEST_F(SocketTestTCP, TCPConnectFails) {
+  sockaddr_in addr;
+  socklen_t addrlen = sizeof(addr);
+
+  // 10 is an unassigned well-known port, nothing should be bound to it.
+  IP4ToSockAddr(LOCAL_HOST, 10, &addr);
+  ASSERT_EQ(-1, ki_connect(sock1_, (sockaddr*) &addr, addrlen));
+  ASSERT_EQ(ECONNREFUSED, errno);
+}
+
 TEST_F(SocketTest, Getsockopt) {
   sock1_ = ki_socket(AF_INET, SOCK_STREAM, 0);
   EXPECT_GT(sock1_, -1);
   int socket_error = 99;
   socklen_t len = sizeof(socket_error);
 
   // Test for valid option (SO_ERROR) which should be 0 when a socket
   // is first created.
   ASSERT_EQ(0, ki_getsockopt(sock1_, SOL_SOCKET, SO_ERROR,
                              &socket_error, &len));
@@ skipping 425 matching lines @@
   while (remainder > 0) {
     int rtn = ki_recv(new_sock, buffer, remainder, 0);
     ASSERT_GT(rtn, 0);
     remainder -= rtn;
   }
 
   ASSERT_EQ(0, ki_close(new_sock));
 }
 
 #endif  // PROVIDES_SOCKET_API