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#include<sys/socket.h>#include<sys/types.h>#include<stdio.h>#include<netinet/in.h>#include<arpa/inet.h>#include<unistd.h>#include<string.h>#include<fcntl.h>#include<sys/shm.h>#include<stdlib.h>#define port 8888#define queue 10#define buffer_size 1024int main(){ //创建socket int server_sockfd = socket(AF_INET, SOCK_STREAM, 0),new_socket; struct sockaddr_in server,client; //监听服务器自身 server.sin_family = AF_INET; server.sin_port = htons(port); server.sin_addr.s_addr = INADDR_ANY; //绑定socket到端口 if (bind(server_sockfd, (struct sockaddr*)&server, sizeof(server)) < 0) { perror("bind"); exit(1); } //监听socket if (listen(server_sockfd, queue) < 0) { perror("listen"); exit(1); } //监听 listen(server_sockfd, queue); //接受链接 char buffer[buffer_size]; socklen_t length = sizeof(client); int conn = accept(server_sockfd, (struct sockaddr*)&client, &length); if (conn < 0) { perror("accept"); exit(1); } while (1) { memset(buffer, '0', sizeof(buffer)); int len = recv(conn, buffer, sizeof(buffer), 0);//接收数据 fputs(buffer, stdout); send(conn, buffer, len, 0); } close(conn); close(server_sockfd); return 0;} |
客户端：
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#include<sys/socket.h>#include<sys/type.h>#include<sys/shm.h>#include<netdb.h>#include<stdio.h>#include<unistd.h>#include<errno.h>#include<arpa/inet.h>#include<string.h>#include<fcntl.h>#define port 8888#define buffer_size 1024int main(){ int sock_cli = socket(AF_INET, SOCK_STREAM, 0); struct sockaddr_in server; memset(&serever, '0', sizeof(server)); server.sin_family = AF_INET; server.sin_port = htons(port); server.sin_addr.s_addr = inet_addr("127.0.0.1"); if (connect(sock_cli, (struct sockaddr*)&server), sizeof(server) < 0) { perror("connect"); exit(1); } char sendbuf[buffer_size]; char recvbuf[buffer_size]; while (fgets(sendbuf, sizeof(sendbuf), stdin) != NULL) { send(sock_cli, sendbuf, strlen(sendbuf), 0); recv(sock_cli, recvbuf, strlen(recvbuf), 0); fputs(recvbuf, stdout); memset(sendbuf, '0', sizeof(sendbuf)); memset(recvbuf, '0', sizeof(recvbuf)); } close(sock_cli); return 0;} |