mirror of
https://github.com/zeromq/libzmq.git
synced 2024-12-26 23:01:04 +08:00
82 lines
2.0 KiB
C++
82 lines
2.0 KiB
C++
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#include <assert.h>
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#include <string.h>
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#include <stdio.h>
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#include <netinet/in.h>
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#include <unistd.h>
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#include <zmq.h>
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int main()
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{
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const int msgsize = 8193;
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char sndbuf[msgsize] = "\xde\xad\xbe\xef";
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unsigned char rcvbuf[msgsize];
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int server_sock = socket(AF_INET, SOCK_STREAM, 0);
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assert(server_sock!=-1);
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int enable = 1;
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int rc = setsockopt(server_sock, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(enable));
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assert(rc!=-1);
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struct sockaddr_in saddr;
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memset(&saddr, 0, sizeof(saddr));
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saddr.sin_family = AF_INET;
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saddr.sin_addr.s_addr = INADDR_ANY;
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saddr.sin_port = htons(12345);
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rc = bind(server_sock, (struct sockaddr *)&saddr, sizeof(saddr));
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assert(rc!=-1);
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rc = listen(server_sock, 1);
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assert(rc!=-1);
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void *zctx = zmq_ctx_new();
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assert(zctx);
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void *zsock = zmq_socket(zctx, ZMQ_STREAM);
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assert(zsock);
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rc = zmq_connect(zsock, "tcp://127.0.0.1:12345");
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assert(rc!=-1);
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int client_sock = accept(server_sock, NULL, NULL);
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assert(client_sock!=-1);
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rc = close(server_sock);
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assert(rc!=-1);
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rc = send(client_sock, sndbuf, msgsize, 0);
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assert(rc==msgsize);
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zmq_msg_t msg;
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zmq_msg_init(&msg);
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int rcvbytes = 0;
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while (rcvbytes==0) // skip connection notification, if any
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{
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rc = zmq_msg_recv(&msg, zsock, 0); // peerid
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assert(rc!=-1);
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assert(zmq_msg_more(&msg));
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rcvbytes = zmq_msg_recv(&msg, zsock, 0);
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assert(rcvbytes!=-1);
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assert(!zmq_msg_more(&msg));
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}
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// for this test, we only collect the first chunk
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// since the corruption already occurs in the first chunk
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memcpy(rcvbuf, zmq_msg_data(&msg), zmq_msg_size(&msg));
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zmq_msg_close(&msg);
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zmq_close(zsock);
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close(client_sock);
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zmq_ctx_destroy(zctx);
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assert(rcvbytes >= 4);
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// notice that only the 1st byte gets corrupted
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assert(rcvbuf[3]==0xef);
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assert(rcvbuf[2]==0xbe);
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assert(rcvbuf[1]==0xad);
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assert(rcvbuf[0]==0xde);
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}
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