Linux的服务器和客户端之间的通讯

深碍√TFBOYSˉ_ 2022-05-14 11:43 199阅读 0赞

#include<stdio.h>//服务器
    #include<sys/socket.h>
    #include<netinet/ip.h>
    #include<netinet/ip.h>
    #define PORT 7878
    int main()
    {
      int socketfd,newfd,ret;
      char buf[100]="";
      struct sockaddr_in info;
      //socket
      socketfd=socket(AF_INET,SOCK_STREAM,0);
      if(socketfd<0)
      goto err;
      info.sin_family=AF_INET;
      info.sin_port=htons(PORT);
      info.sin_addr.s_addr=0;
      ret=bind(socketfd,(void*)&info,sizeof(info));
      if(ret)
       goto err;
       listen(socketfd,10);
       newfd=accept(socketfd,NULL,NULL);
       while(1)
       {
           read(newfd,buf,sizeof(buf));
           printf("buf:%s\n",buf);
    // fun(buf);
           write(newfd,buf,sizeof(buf));
       }
       return 0;
       err:
       perror("");
    }

#include<stdio.h>//客户端
    #include<sys/socket.h>
    #include<netinet/ip.h>
    #include<netinet/ip.h>
    #define PORT 7878
    int main(int argc,char **argv)
    {
     int socketfd,ret;
     struct sockaddr_in info;
     char buf[100]="";
     //click socket
     socketfd=socket(AF_INET,SOCK_STREAM,0);
     if(socketfd<0)
     goto err;
     info.sin_family=AF_INET;/*address family:AF_INET*/
     info.sin_port=htons(PORT);/*port in network byte order*/
     info.sin_addr.s_addr=inet_addr("127.0.0.1");/*internet address*/
     //connect server
     ret=connect(socketfd,(void*)&info,sizeof(info));
     if(ret)
     goto err;
     while(1)
     {
       gets(buf);
       //send data to the server
       write(socketfd,buf,sizeof(buf));
       read(socketfd,buf,sizeof(buf));
       puts(buf);
     }
     return 0;
     err:
     perror("");
    
    }