#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <time.h>
#include <signal.h>
#include <sys/wait.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>

int main(int argc, char **argv) {
  int z, len_inet;
  struct sockaddr_in adr_srvr;
  int sockfd;
  int i;
  char buf[256];
  int  buffer[256];

  memset(&adr_srvr, 0, sizeof(adr_srvr));

  if (argc ==2)
    adr_srvr.sin_addr.s_addr = inet_addr(argv[1]);



  adr_srvr.sin_family = AF_INET;
  adr_srvr.sin_port = htons(9090);

  sockfd = socket(AF_INET, SOCK_STREAM, 0);
  if (sockfd == -1) {
    perror("socket error");
    exit(1);
  }

  z = connect(sockfd, (struct sockaddr *)&adr_srvr, sizeof(adr_srvr));
  if(z == -1) {
    perror("connect error");
    exit(1);
  }
  while(1){
   // printf("here");
    //接受SERVER傳送HELLO
	read(sockfd, buf, 256);
    printf("%s\n",buf);
    //告知輸入答案
	read(sockfd, buf, 256);
    printf("%s\n",buf);

    while (1) {
          //讀取輸入
		  scanf("%d",&buffer[0]);
          //傳給SERVER
		  write(sockfd, buffer, 256);
          //讀取結果
		  read(sockfd, buf, 256);
          printf("%s\n",buf);
	  if(strlen(buf)==6){
           //如果答案是BINGO，就輸出最小的測測者次數(WINNER)
		   read(sockfd, buf, 256);
           printf("%s\n",buf);
           break;
          }
   }
  }
  close(sockfd);
  return 0;
}