45 lines
1.0 KiB
C++
45 lines
1.0 KiB
C++
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//tcpserver.cc
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#include <iostream>
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#include <cstring>
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#include <strings.h>
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#include <stdlib.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <unistd.h>
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using namespace std;
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int main(int argc, char *argv[])
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{
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//创建套接字
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int sk = socket(AF_INET, SOCK_STREAM, 0);
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struct sockaddr_in server;
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bzero(&server, sizeof(server));
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server.sin_family = AF_INET;
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server.sin_port = htons(atoi(argv[1]));
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server.sin_addr.s_addr = htonl(INADDR_ANY);
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//端口绑定
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bind(sk, (struct sockaddr*)&server, sizeof(server));
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//监听
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listen(sk, 5);
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struct sockaddr_in client;
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bzero(&client, sizeof(client));
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socklen_t len = sizeof(client);
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//接受连接请求
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int talk = accept(sk, (struct sockaddr*)&client, &len);
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//发送数据
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send(talk, "Hello", strlen("Hello") + 1, 0);
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//接收数据
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char buff[1024] = {'\0'};
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recv(talk, buff, sizeof(buff), 0);
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cout << buff << endl;
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//关闭套接字
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close(talk);
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close(sk);
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return 0;
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}
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