#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>


int main(int argc, char **argv){
	int ret_val;
	const char *node;
	const char *service;
	const struct addrinfo *hints;
	struct addrinfo **res;

	memset(&hints, 0, sizeof hints); // make sure the struct is empty
	hints.ai_family = AF_UNSPEC;     // don't care IPv4 or IPv6
	hints.ai_socktype = SOCK_STREAM; // TCP stream sockets
	hints.ai_flags = AI_PASSIVE;     // fill in my IP for me
	

if ((ret_val = getaddrinfo(NULL, "3490", &hints, &servinfo)) != 0) {
    fprintf(stderr, "getaddrinfo error: %s\n", gai_strerror(ret_val));
    exit(1);
}

// servinfo now points to a linked list of 1 or more struct addrinfos

// ... do everything until you don't need servinfo anymore ....

freeaddrinfo(servinfo); // free the linked-list



	//ret_val = getaddrinfo(node,     // e.g. "www.example.com" or IP
        //        service,  // e.g. "http" or port number
        //        hints,
        //        res);





	return 0;
}