IT. Expert System.

C

sys/types.h


Include in an application source file to gain access to the definition of _LP64 and _ILP32. This header also contains a number of basic derived types that should be used whenever appropriate.

Syntax:
#include 


Example:

#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
 
int main(void)
{
  int listenfd = 0,connfd = 0;
  
  struct sockaddr_in serv_addr;
 
  char sendBuff[1025];  
  int numrv;  
 
  listenfd = socket(AF_INET, SOCK_STREAM, 0);
  printf("socket retrieve success\n");
  
  memset(&serv_addr, '0', sizeof(serv_addr));
  memset(sendBuff, '0', sizeof(sendBuff));
      
  serv_addr.sin_family = AF_INET;    
  serv_addr.sin_addr.s_addr = htonl(INADDR_ANY); 
  serv_addr.sin_port = htons(5000);    
 
  bind(listenfd, (struct sockaddr*)&serv_addr,sizeof(serv_addr));
  
  if(listen(listenfd, 10) == -1){
      printf("Failed to listen\n");
      return -1;
  }
     
  
  while(1)
    {
      
      connfd = accept(listenfd, (struct sockaddr*)NULL ,NULL); // accept awaiting request
  
      strcpy(sendBuff, "Message from server");
      write(connfd, sendBuff, strlen(sendBuff));
 
      close(connfd);    
      sleep(1);
    }
 
 
  return 0;
}


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