#include <stdio.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <netinet/in.h>

int main(int argc, char **argv) {
    struct hostent *host;     /* host information */
    struct in_addr h_addr;    /* internet address */
    if (argc != 2) {
        fprintf(stderr, "USAGE: nslookup <inet_address>\n");
        return(1);
    }
    if ((host = gethostbyname(argv[1])) == NULL) {
        fprintf(stderr, "(mini) nslookup failed on '%s'\n", argv[1]);
        return(1);
    }
    h_addr.s_addr = *((unsigned long *) host->h_addr_list[0]);
    fprintf(stdout, "%s\n", inet_ntoa(h_addr));
    return(0);
}