#include <stdio.h>//printf
#include <string.h>//memset
#include <stdlib.h>//for exit(0);
#include <sys/socket.h>
#include <errno.h>//For errno - the error number
#include <netdb.h>//hostent
#include <arpa/inet.h>

int hostname_to_ip(char *  , char *);

int main(int argc , char *argv[])
{
	if(argc <2)
	{
		printf("Please provide a hostname to resolve");
		exit(1);
	}

	char *hostname = argv[1];
	char ip[100];

	hostname_to_ip(hostname , ip);
	printf("%s resolved to %s" , hostname , ip);

	printf("\n");

}
/*
	Get ip from domain name
 */

int hostname_to_ip(char * hostname , char* ip)
{
	struct hostent *he;
	struct in_addr **addr_list;
	int i;

	if ( (he = gethostbyname( hostname ) ) == NULL)
	{
		// get the host info
		herror("gethostbyname");
		return 1;
	}

	addr_list = (struct in_addr **) he->h_addr_list;

	for(i = 0; addr_list[i] != NULL; i++)
	{
		//Return the first one;
		strcpy(ip , inet_ntoa(*addr_list[i]) );
		return 0;
	}

	return 1;
}