0
0
mirror of https://github.com/zeromq/libzmq.git synced 2024-12-26 23:01:04 +08:00
libzmq/tests/test_stream_exceeds_buffer.cpp

106 lines
3.7 KiB
C++
Raw Normal View History

/*
Copyright (c) 2007-2016 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 <string.h>
#ifndef _WIN32
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#endif
SETUP_TEARDOWN_TESTCONTEXT
void test_stream_exceeds_buffer ()
{
const int msgsize = 8193;
char sndbuf[msgsize] = "\xde\xad\xbe\xef";
unsigned char rcvbuf[msgsize];
char my_endpoint[MAX_SOCKET_STRING];
int server_sock =
TEST_ASSERT_SUCCESS_RAW_ERRNO (socket (AF_INET, SOCK_STREAM, 0));
int enable = 1;
TEST_ASSERT_SUCCESS_RAW_ERRNO (setsockopt (server_sock, SOL_SOCKET,
SO_REUSEADDR, (char *) &enable,
sizeof (enable)));
struct sockaddr_in saddr = bind_bsd_socket (server_sock);
TEST_ASSERT_SUCCESS_RAW_ERRNO (listen (server_sock, 1));
sprintf (my_endpoint, "tcp://127.0.0.1:%d", ntohs (saddr.sin_port));
void *zsock = test_context_socket (ZMQ_STREAM);
TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (zsock, my_endpoint));
int client_sock =
TEST_ASSERT_SUCCESS_RAW_ERRNO (accept (server_sock, NULL, NULL));
TEST_ASSERT_SUCCESS_RAW_ERRNO (close (server_sock));
TEST_ASSERT_EQUAL_INT (msgsize, send (client_sock, sndbuf, msgsize, 0));
zmq_msg_t msg;
zmq_msg_init (&msg);
int rcvbytes = 0;
while (rcvbytes == 0) // skip connection notification, if any
{
TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_recv (&msg, zsock, 0)); // peerid
TEST_ASSERT_TRUE (zmq_msg_more (&msg));
rcvbytes = TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_recv (&msg, zsock, 0));
TEST_ASSERT_FALSE (zmq_msg_more (&msg));
}
// for this test, we only collect the first chunk
// since the corruption already occurs in the first chunk
memcpy (rcvbuf, zmq_msg_data (&msg), zmq_msg_size (&msg));
zmq_msg_close (&msg);
test_context_socket_close (zsock);
close (client_sock);
TEST_ASSERT_GREATER_OR_EQUAL (4, rcvbytes);
// notice that only the 1st byte gets corrupted
TEST_ASSERT_EQUAL_UINT (0xef, rcvbuf[3]);
TEST_ASSERT_EQUAL_UINT (0xbe, rcvbuf[2]);
TEST_ASSERT_EQUAL_UINT (0xad, rcvbuf[1]);
TEST_ASSERT_EQUAL_UINT (0xde, rcvbuf[0]);
}
int main ()
{
UNITY_BEGIN ();
RUN_TEST (test_stream_exceeds_buffer);
return UNITY_END ();
}