/*
 *  getip v1.0  Looks up an IP address based on hostname
 *  
 *  Copyright (C) 2000 Mats Peterson
 *  
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *  
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *  
 *  You should have received a copy of the GNU General Public License
 *  along with this program; see the file COPYING.  If not, write to
 *  the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 *  Boston, MA 02111-1307, USA.
 *  
 *  Please send any comments/bug reports to
 *  mats_peterson@swipnet.se  (Mats Peterson)
 */

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <errno.h>


int get_addr(struct sockaddr_in *name, const char *hostname)
{
    struct hostent *hostinfo;

    if (! (hostinfo = gethostbyname(hostname)))
        return h_errno;
    name->sin_addr = *(struct in_addr *) hostinfo->h_addr;
    return 0;
}


void usage(void)
{
    fprintf(stderr, "usage: getip <hostname>\n");
    exit(0);
}


int main(int argc, char **argv)
{
    struct sockaddr_in name;
    time_t start;

    if (argc == 1) 
        usage();

    if (get_addr(&name, argv[1])) {
	fprintf(stderr, "Host name lookup failure\n");
        exit(1);
    }

    printf("%s\n", inet_ntoa(name.sin_addr));
}
.