AIwiki

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h> 
//#include <arpa/inet.h>
 
#define MSG_LEN 512
 
void SendCommand(char str[], int s)
{
	char msg[MSG_LEN];
	int res;
 
	res = send(s, str, strlen(str), 0);
	if (res <= 0) 
	{
		close(s);
		return;
	}
 
	memset(msg, 0, MSG_LEN);
 
	res = recv(s, msg, MSG_LEN, 0);
	if (res <= 0) 
	{
		close(s);
	 	return;
	}				
 
	printf("%s\n", msg);
}
 
int main(void) {
 
	int s, res;
	struct sockaddr_in taddr;
	char msg[MSG_LEN];
 
  s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (s < 0) {
    perror("socket");
    return 1;
  }
 
  memset(&taddr, 0, sizeof(struct sockaddr));
 
  taddr.sin_family = AF_INET;
  taddr.sin_port  = htons(2000);
  taddr.sin_addr.s_addr = inet_addr("127.0.0.1");
 
  res = connect(s, (struct sockaddr*)&taddr, sizeof(struct sockaddr));
  if (res < 0) {
    close(s);
    perror("connect");
    return 1;
  }
 
	memset(msg, 0, MSG_LEN);
 
	res = recv(s, msg, MSG_LEN, 0);
	if (res <= 0) 
	{
		close(s);
	 	return -1;
	}				
 
	printf("%s\n", msg);
 
	SendCommand("nxt; open",s);
	SendCommand("nxt; open",s);
 
  close(s);
 
  return 0;
}