#include <netdb.h>
#include <stdio.h>

#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>


extern int h_errno;


int
main(int argc, char* argv[])
{
  struct hostent *hostinfo;
  char *haddr;
  char addr_string[INET6_ADDRSTRLEN]; /* long enough for a full-form IPv6 addr and a null byte */
  hostinfo = gethostbyname(argv[1]);
  if ( ! hostinfo ) {
    herror("gethostbyname");
    return 1;
  }

  printf("name:%s\n", hostinfo->h_name);
  haddr = hostinfo->h_addr_list[0];
  while( *haddr ) {
    if ( ! inet_ntop(hostinfo->h_addrtype, haddr, addr_string, sizeof(addr_string)) ) {
      perror("stringifying in inet_ntop");
    } else {
      printf("\t%s\n", addr_string);
    }
    haddr += hostinfo->h_length;
  }
  return 0;
}