libzmq/tests/test_srcfd.cpp

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/*
Copyright (c) 2007-2017 Contributors as noted in the AUTHORS file
This file is part of libzmq, the ZeroMQ core engine in C++.
libzmq is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
As a special exception, the Contributors give you permission to link
this library with independent modules to produce an executable,
regardless of the license terms of these independent modules, and to
copy and distribute the resulting executable under terms of your choice,
provided that you also meet, for each linked independent module, the
terms and conditions of the license of that module. An independent
module is a module which is not derived from or based on this library.
If you modify this library, you must extend this exception to your
version of the library.
libzmq is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "testutil.hpp"
#include "testutil_unity.hpp"
#include <unity.h>
void setUp ()
{
setup_test_context ();
}
void tearDown ()
{
teardown_test_context ();
}
#define MSG_SIZE 20
#ifdef _WIN32
#include <winsock2.h>
#include <ws2tcpip.h>
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#endif
void test_srcfd ()
{
char my_endpoint[MAX_SOCKET_STRING];
// Create the infrastructure
void *rep = test_context_socket (ZMQ_REP);
void *req = test_context_socket (ZMQ_REQ);
bind_loopback_ipv4 (rep, my_endpoint, sizeof (my_endpoint));
TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (req, my_endpoint));
char tmp[MSG_SIZE];
memset (tmp, 0, MSG_SIZE);
zmq_send (req, tmp, MSG_SIZE, 0);
zmq_msg_t msg;
TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_init (&msg));
zmq_recvmsg (rep, &msg, 0);
TEST_ASSERT_EQUAL_UINT (MSG_SIZE, zmq_msg_size (&msg));
// get the messages source file descriptor
int src_fd = zmq_msg_get (&msg, ZMQ_SRCFD);
TEST_ASSERT_GREATER_OR_EQUAL (0, src_fd);
TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&msg));
// get the remote endpoint
struct sockaddr_storage ss;
#ifdef ZMQ_HAVE_HPUX
int addrlen = sizeof ss;
#else
socklen_t addrlen = sizeof ss;
#endif
TEST_ASSERT_SUCCESS_RAW_ERRNO (
getpeername (src_fd, (struct sockaddr *) &ss, &addrlen));
char host[NI_MAXHOST];
TEST_ASSERT_SUCCESS_RAW_ERRNO (getnameinfo ((struct sockaddr *) &ss,
addrlen, host, sizeof host,
NULL, 0, NI_NUMERICHOST));
// assert it is localhost which connected
TEST_ASSERT_EQUAL_STRING ("127.0.0.1", host);
test_context_socket_close (rep);
test_context_socket_close (req);
// sleep a bit for the socket to be freed
msleep (SETTLE_TIME);
// getting name from closed socket will fail
#ifdef ZMQ_HAVE_WINDOWS
const int expected_errno = WSAENOTSOCK;
#else
const int expected_errno = EBADF;
#endif
TEST_ASSERT_FAILURE_RAW_ERRNO (
expected_errno, getpeername (src_fd, (struct sockaddr *) &ss, &addrlen));
}
int main ()
{
setup_test_environment ();
UNITY_BEGIN ();
RUN_TEST (test_srcfd);
return UNITY_END ();
}