Instructions : all home assignments are to be completed in groups of

/* It takes the domain name as the parameter and returns a structure of type hostent.
*/
/* This structure has the ip information.
*/
/* It is present in netdb.h. Lets have a look at this structure
*/
/* Description of data base entry for a single host.
*/ 
 
/* struct hostent
*/
/* {
*/
/* char *h_name; Official name of host.
*/
/* char **h_aliases; Alias list.
*/
/* int h_addrtype; Host address type.
*/
/* int h_length; Length of address.
*/
/* char **h_addr_list; List of addresses from name server.
*/
/* };
*/
/* The h_addr_list has the IP addresses.
*/
#include //printf
#include //strcpy
#include
#include //hostent
#include
 
int main(int argc , char *argv[])
{
char *hostname;
char ip[100];
struct hostent *he;
struct in_addr **addr_list;
int i; 
if(argc == 2 )
{
hostname = argv[1];
if ( (he = gethostbyname( hostname ) ) == NULL) 
{
//gethostbyname failed
herror("gethostbyname");
return 1;
}
 //Cast the h_addr_list to in_addr , since h_addr_list also has the ip address in long format 
only

---

SOC3010 OPERATING SYSTEMS 
HOME ASSIGNMENT 3 
FALL 2022
addr_list = (struct in_addr **) he->h_addr_list;

for(i = 0; addr_list[i] != NULL; i++)