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libzmq/tests/test_stream_exceeds_buffer.cpp
Luca Boccassi 8325355d73 Problem: test_stream_exceeds_buffer has redundant includes
Solution: remove them as they are already in testutil.hpp
2016-12-06 20:33:46 +00:00

113 lines
3.5 KiB
C++

/*
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"
#if defined (ZMQ_HAVE_WINDOWS)
# include <winsock2.h>
# include <ws2tcpip.h>
# include <stdexcept>
# define close closesocket
#endif
int main()
{
const int msgsize = 8193;
char sndbuf[msgsize] = "\xde\xad\xbe\xef";
unsigned char rcvbuf[msgsize];
int server_sock = socket(AF_INET, SOCK_STREAM, 0);
assert(server_sock!=-1);
int enable = 1;
int rc = setsockopt (server_sock, SOL_SOCKET, SO_REUSEADDR, (char *) &enable, sizeof(enable));
assert(rc!=-1);
struct sockaddr_in saddr;
memset(&saddr, 0, sizeof(saddr));
saddr.sin_family = AF_INET;
saddr.sin_addr.s_addr = INADDR_ANY;
saddr.sin_port = htons(12345);
rc = bind(server_sock, (struct sockaddr *)&saddr, sizeof(saddr));
assert(rc!=-1);
rc = listen(server_sock, 1);
assert(rc!=-1);
void *zctx = zmq_ctx_new();
assert(zctx);
void *zsock = zmq_socket(zctx, ZMQ_STREAM);
assert(zsock);
rc = zmq_connect(zsock, "tcp://127.0.0.1:12345");
assert(rc!=-1);
int client_sock = accept(server_sock, NULL, NULL);
assert(client_sock!=-1);
rc = close(server_sock);
assert(rc!=-1);
rc = send(client_sock, sndbuf, msgsize, 0);
assert(rc==msgsize);
zmq_msg_t msg;
zmq_msg_init(&msg);
int rcvbytes = 0;
while (rcvbytes==0) // skip connection notification, if any
{
rc = zmq_msg_recv(&msg, zsock, 0); // peerid
assert(rc!=-1);
assert(zmq_msg_more(&msg));
rcvbytes = zmq_msg_recv(&msg, zsock, 0);
assert(rcvbytes!=-1);
assert(!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);
zmq_close(zsock);
close(client_sock);
zmq_ctx_destroy(zctx);
assert(rcvbytes >= 4);
// notice that only the 1st byte gets corrupted
assert(rcvbuf[3]==0xef);
assert(rcvbuf[2]==0xbe);
assert(rcvbuf[1]==0xad);
assert(rcvbuf[0]==0xde);
(void)(rc); // avoid -Wunused-but-set-variable warning in release build
}