C语言网络编程两端(tcp)

 #include <stdio.h>

    
 #include <sys/socket.h>
    
 #include <netinet/in.h>
    
 #include <stdlib.h>
    
 #include <string.h>
    
  
    
 #define SERVPORT 5000
    
  
    
  
    
 int main(int argc,char ** argv)
    
 {
    
     int sockfd,n;
    
     struct sockaddr_in servaddr,cliaddr;
    
     char sendline[1000];//发送缓冲区大小
    
     char recvline[1000];
    
  
    
     if(argc != 2)
    
     {
    
     printf("usage:server address!\n");
    
     exit(0);
    
     }
    
  
    
     sockfd = socket(AF_INET,SOCK_STREAM,0);
    
  
    
     bzero(&servaddr,sizeo