一.概述:本次练习的是linux下的TAP/IP套接字多进程与多线程编程,功能只实现了对话。话不多说,直接上代码。
二.多进程:
server.c:
1 /**************************************** 2 > File Name:server.c 3 > Author:xiaoxiaohui 4 > mail:[email protected] 5 > Created Time:2016年05月15日 星期日 16时06分03秒 6 ****************************************/ 7 8 #include<stdio.h> 9 #include<stdlib.h> 10 #include<sys/types.h> 11 #include<sys/socket.h> 12 #include<unistd.h> 13 #include <arpa/inet.h> 14 #include<netinet/in.h> 15 #include<fcntl.h> 16 #include<string.h> 17 #include<fcntl.h> 18 19 #define LEN 1024 20 const int PORT = 8080; 21 int listenSock, linkSock; 22 struct sockaddr_in lockal; 23 struct sockaddr_in client; 24 char buf[LEN]; 25 26 27 void ListenSock() //建立一个已链接套接字 28 { 29 listenSock = socket(AF_INET, SOCK_STREAM, 0); //返回一个文件描述符 30 31 lockal.sin_family = AF_INET; 32 lockal.sin_addr.s_addr = htonl(INADDR_ANY); //适合多网卡 33 lockal.sin_port = htons(PORT); 34 if( bind(listenSock, (struct sockaddr*)&lockal, sizeof(lockal)) < 0) //绑定本地地址 35 { 36 perror("bind"); 37 exit(0); 38 } 39 40 if( listen(listenSock, 5) < 0) //进入监听状态 41 { 42 perror("listen"); 43 exit(1); 44 } 45 } 46 47 void LinkSock() 48 { 49 int size = sizeof(lockal); 50 linkSock = accept(listenSock, (struct sockaddr*)&client, &size); //创建一个已链接套接字 51 if(linkSock < 0) 52 { 53 perror("accept"); 54 } 55 else 56 { 57 printf("connect success ip is :%s port is : %d\n",inet_ntoa(client.sin_addr),ntohs(client.sin_port)); 58 } 59 } 60 61 int main() 62 { 63 ListenSock(); 64 while(1) 65 { 66 LinkSock(); 67 68 pid_t pid = fork(); 69 70 if(pid == 0) 71 { 72 close(listenSock); 73 while(1) 74 { 75 int ret = 0; 76 ret = read(linkSock, buf, LEN); 77 buf[ret] = ‘\0‘; 78 printf("client->ip:%s port: %d #%s\n",inet_ntoa(client.sin_addr), 79 ntohs(client.sin_port), buf); 80 } 81 } 82 else if(pid > 0) 83 { 84 close(linkSock); 85 } 86 else 87 { 88 perror("fork"); 89 continue; 90 } 91 } 92 93 return 0; 94 } 95 96
client.c:
1 /**************************************** 2 > File Name:client.c 3 > Author:xiaoxiaohui 4 > mail:[email protected] 5 > Created Time:2016年05月15日 星期日 16时48分21秒 6 ****************************************/ 7 8 9 #include<stdio.h> 10 #include<stdlib.h> 11 #include<sys/types.h> 12 #include<sys/socket.h> 13 #include<unistd.h> 14 #include <arpa/inet.h> 15 #include<netinet/in.h> 16 #include<fcntl.h> 17 #include<string.h> 18 #include<fcntl.h> 19 const int PORT = 8080; 20 const int LEN = 1024; 21 int clientSock; 22 struct sockaddr_in server; 23 24 25 26 void LinkSock() //创建一个以链接套接字 27 { 28 clientSock = socket(AF_INET, SOCK_STREAM, 0); 29 30 server.sin_family = AF_INET; 31 server.sin_addr.s_addr = inet_addr("127.0.0.1"); 32 server.sin_port = htons(PORT); 33 if( connect(clientSock, (struct sockaddr*)&server, sizeof(server)) < 0) 34 { 35 perror("connect"); 36 exit(0); 37 } 38 else 39 { 40 printf("connect success! ip:%s port:%d\n", inet_ntoa(server.sin_addr), ntohs(server.sin_port)); 41 } 42 } 43 44 int main() 45 { 46 47 char buf[LEN]; 48 LinkSock(); //得到一个已链接套接字 49 50 while(1) 51 { 52 int ret = 0; 53 printf("请选择->"); 54 gets(buf); 55 56 write(clientSock, buf, strlen(buf)); //把选择的命令发到服务器 57 58 //memset(buf, ‘\0‘, LEN); 59 //ret = read(clientSock, buf, LEN - 1 ); //接受服务器的信息 60 //buf[ret] = ‘\0‘; 61 //printf("%s", buf); 62 //printf("\n"); 63 } 64 65 return 0; 66 } 67
执行结果:
三.多线程:
server.c:
1 /**************************************** 2 > File Name:server.c 3 > Author:xiaoxiaohui 4 > mail:[email protected] 5 > Created Time:2016年05月15日 星期日 16时06分03秒 6 ****************************************/ 7 8 #include<stdio.h> 9 #include<stdlib.h> 10 #include<sys/types.h> 11 #include<sys/socket.h> 12 #include<unistd.h> 13 #include <arpa/inet.h> 14 #include<netinet/in.h> 15 #include<fcntl.h> 16 #include<string.h> 17 #include<fcntl.h> 18 #include<pthread.h> 19 20 #define LEN 1024 21 const int PORT = 8080; 22 int listenSock, linkSock; 23 struct sockaddr_in lockal; 24 struct sockaddr_in client; 25 char buf[LEN]; 26 27 28 void ListenSock() //建立一个已链接套接字 29 { 30 listenSock = socket(AF_INET, SOCK_STREAM, 0); //返回一个文件描述符 31 32 lockal.sin_family = AF_INET; 33 lockal.sin_addr.s_addr = htonl(INADDR_ANY); //适合多网卡 34 lockal.sin_port = htons(PORT); 35 if( bind(listenSock, (struct sockaddr*)&lockal, sizeof(lockal)) < 0) //绑定本地地址 36 { 37 perror("bind"); 38 exit(0); 39 } 40 41 if( listen(listenSock, 5) < 0) //进入监听状态 42 { 43 perror("listen"); 44 exit(1); 45 } 46 } 47 48 void LinkSock() 49 { 50 int size = sizeof(lockal); 51 linkSock = accept(listenSock, (struct sockaddr*)&client, &size); //创建一个已链接套接字 52 if(linkSock < 0) 53 { 54 perror("accept"); 55 } 56 else 57 { 58 printf("connect success ip is :%s port is : %d\n",inet_ntoa(client.sin_addr),ntohs(client.sin_port)); 59 } 60 } 61 62 void* RecvMessage(void* ptr) 63 { 64 while(1) 65 { 66 int ret = 0; 67 ret = read(linkSock, buf, LEN); 68 buf[ret] = ‘\0‘; 69 printf("client->ip:%s port: %d #%s\n",inet_ntoa(client.sin_addr), 70 ntohs(client.sin_port), buf); 71 } 72 return NULL; 73 } 74 75 int main() 76 { 77 ListenSock(); 78 while(1) 79 { 80 LinkSock(); 81 82 pthread_t tid; 83 int err = pthread_create(&tid, NULL, RecvMessage, NULL); 84 pthread_detach(tid); 85 } 86 87 return 0; 88 } 89 90
client.c:
1 /**************************************** 2 > File Name:client.c 3 > Author:xiaoxiaohui 4 > mail:[email protected] 5 > Created Time:2016年05月15日 星期日 16时48分21秒 6 ****************************************/ 7 8 9 #include<stdio.h> 10 #include<stdlib.h> 11 #include<sys/types.h> 12 #include<sys/socket.h> 13 #include<unistd.h> 14 #include <arpa/inet.h> 15 #include<netinet/in.h> 16 #include<fcntl.h> 17 #include<string.h> 18 #include<fcntl.h> 19 const int PORT = 8080; 20 const int LEN = 1024; 21 int clientSock; 22 struct sockaddr_in server; 23 24 25 26 void LinkSock() //创建一个以链接套接字 27 { 28 clientSock = socket(AF_INET, SOCK_STREAM, 0); 29 30 server.sin_family = AF_INET; 31 server.sin_addr.s_addr = inet_addr("127.0.0.1"); 32 server.sin_port = htons(PORT); 33 if( connect(clientSock, (struct sockaddr*)&server, sizeof(server)) < 0) 34 { 35 perror("connect"); 36 exit(0); 37 } 38 else 39 { 40 printf("connect success! ip:%s port:%d\n", inet_ntoa(server.sin_addr), ntohs(server.sin_port)); 41 } 42 } 43 44 int main() 45 { 46 47 char buf[LEN]; 48 LinkSock(); //得到一个已链接套接字 49 50 while(1) 51 { 52 int ret = 0; 53 printf("请选择->"); 54 gets(buf); 55 56 write(clientSock, buf, strlen(buf)); //把选择的命令发到服务器 57 58 //memset(buf, ‘\0‘, LEN); 59 //ret = read(clientSock, buf, LEN - 1 ); //接受服务器的信息 60 //buf[ret] = ‘\0‘; 61 //printf("%s", buf); 62 //printf("\n"); 63 } 64 65 return 0; 66 } 67
执行结果:
时间: 2024-10-12 01:56:20