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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 1024 int 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 ; } |
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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 1024 int 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 ; } |