socket 简单c/s通信-白红宇

socket 简单c/s通信

阅读量：4515 次

发布时间：2019-06-08

本文共 2500 字，大约阅读时间需要 8 分钟。

1.serv.cpp

#include 
     
        #include 
      
         #include 
       
          #include 
        
           #include 
         
            #include 
          
            #include 
           
             #include 
            
              using namespace std; #define PORT 10001 int main() { struct sockaddr_in s_in;//server address structure struct sockaddr_in c_in;//client address structure int l_fd,c_fd; socklen_t len; char buf[100];//content buff area string tem; float x_value = 0.0; float y_value = 0.0; memset((void *)&s_in,0,sizeof(s_in)); s_in.sin_family = AF_INET;//IPV4 communication domain s_in.sin_addr.s_addr = INADDR_ANY;//accept any address s_in.sin_port = htons(PORT);//change port to netchar l_fd = socket(AF_INET,SOCK_STREAM,0);//socket(int domain, int type, int protocol) bind(l_fd,(struct sockaddr *)&s_in,sizeof(s_in)); listen(l_fd,1);//同时只能有一个连接 cout<<"begin"<
             
               “点分十进制 cout<< buf << endl; write(c_fd,buf,n);//sent message back to client } //} return 0; }

2.client.cpp

1 #include 
     
         2 #include 
      
          3 #include 
       
           4 #include 
        
            5 #include 
         
             6 #include 
          
            7 #include 
           
             8 #include 
            
              9 #define BUF_SIZE 100 10 #define ADDR "192.168.132.131" //在本机测试用这个地址，如果连接其他电脑需要更换IP 11 #define SERVERPORT 10001 12 using namespace std; 13 int main(int argc, char *argv[]) 14 { 15 int sock; 16 char opmsg[BUF_SIZE]; 17 char get_msg[BUF_SIZE] = { 0}; 18 int result, opnd_cnt, i; 19 int len; 20 bool if_first = true; 21 struct sockaddr_in serv_addr; 22 23 sock = socket(PF_INET, SOCK_STREAM, 0); 24 if(sock == -1){ 25 return -1; 26 } 27 memset(&serv_addr, 0, sizeof(serv_addr)); 28 serv_addr.sin_family = AF_INET; 29 serv_addr.sin_addr.s_addr = inet_addr(ADDR); // 注释1 30 serv_addr.sin_port = htons(SERVERPORT); 31 if(connect(sock, (struct sockaddr*) &serv_addr, sizeof(serv_addr))==-1){ // 注释2 32 cout << "connect error\n"; 33 return -1; 34 } 35 else{ 36 cout << "connected ...\n" << endl; //注释3 37 } 38 39 while(1){ 40 fgets(opmsg, BUF_SIZE, stdin); 41 len = write(sock, opmsg, strlen(opmsg)); // 注释4 42 if(!strcmp(opmsg, "q\n") || !strcmp(opmsg, "Q\n")) //输入q/Q则断开连接，推出程序43 { 44 puts("q pressed\n"); 45 break; 46 } 47 else 48 { 49 int read_msg = read(sock, get_msg, len); 50 cout << "send length:" << len << " get:" << get_msg << endl; 51 } 52 } 53 close(sock); 54 return 0; 55 }