#include <netdb.h>

void main(int argc, char **argv)
{
  struct hostent *victim;
  if (argc < 2) {
    printf("use with host as argument.\n");
    exit(-1);
  }

  victim = gethostbyname(argv[1]);
  if (!victim) {
    herror(argv[1]);
    exit(-1);
  }
  printf("%u.%u.%u.%u\n", (unsigned char) victim->h_addr[0]
         , (unsigned char) victim->h_addr[1]
         , (unsigned char) victim->h_addr[2]
         , (unsigned char) victim->h_addr[3]);
}