if(FD_ISSET(server_sockfd, &fds)) {
//new connection
struct sockaddr_in cli_addr;
+ #ifdef WIN32
+ int clilen;
+ #else
socklen_t clilen;
+ #endif
client = malloc(sizeof(*client));
clilen = sizeof(cli_addr);
client->sock = accept(server_sockfd, (struct sockaddr *) &cli_addr, &clilen);