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/*
* Copyright (c) 1997-1998 University of Utah and the Flux Group.
* All rights reserved.
*
* This file is part of the Flux OSKit. The OSKit is free software, also known
* as "open source;" you can redistribute it and/or modify it under the terms
* of the GNU General Public License (GPL), version 2, as published by the Free
* Software Foundation (FSF). To explore alternate licensing terms, contact
* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
*
* The OSKit 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 GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
/*
* bootp.c
*
* This shows how to use the bootp library
*/
#include <oskit/net/bootp.h>
#include <sys/types.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <arpa/inet.h>
#include "bootp.h"
/*
* read an IP address from the console
*/
void
get_net_addr(char *buf)
{
struct in_addr ip;
do {
gets(buf);
} while (inet_aton(buf, &ip) == 0);
}
/*
* first try to contact bootp server for ip addr, if
* that fails, ask the user
*/
void
get_ipinfo(oskit_etherdev_t *dev, char *ipaddr, char *gateway, char *netmask,
long *howfarwest)
{
struct bootp_net_info bootpinfo;
int err;
/* get the IP address & other info */
err = bootp(dev, &bootpinfo);
if (!err) {
bootp_dump(&bootpinfo);
if (ipaddr && (bootpinfo.flags & BOOTP_NET_IP))
strcpy(ipaddr, inet_ntoa(bootpinfo.ip));
if (gateway && (bootpinfo.flags & BOOTP_NET_GATEWAY))
strcpy(gateway, inet_ntoa(bootpinfo.gateway.addr[0]));
if (netmask)
if (bootpinfo.flags & BOOTP_NET_NETMASK)
strcpy(netmask, inet_ntoa(bootpinfo.netmask));
else
strcpy(netmask, inet_ntoa(
bootp_default_netmask(bootpinfo.ip)));
if (howfarwest)
*howfarwest = (bootpinfo.flags & BOOTP_NET_TIME_OFFSET)
? bootpinfo.time_offset : 0;
bootp_free(&bootpinfo);
} else {
if (ipaddr) {
printf("What is my IP address: ");
get_net_addr(ipaddr);
}
if (gateway) {
printf("What is my default gateway: ");
get_net_addr(gateway);
}
if (netmask) {
printf("What is my netmask: ");
get_net_addr(netmask);
}
}
}
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