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/*
* The Network Discovery Tool.
* Copyright (C) 2005 Tadas Vilkeliskis aka vptr (vpointer@gmail.com)
*
* The Network Discovery Tool 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 2.1 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; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA.
*/
#include <netinet/in.h>
struct network
{
unsigned long start, end;
} network;
void net_calc_network(struct in_addr ip, struct in_addr netmask)
{
network.start = ip.s_addr & netmask.s_addr; /* sitas isvis niekam nereikalingas, reikia sugalvoti kur i kisti */
network.end = ip.s_addr | (~netmask.s_addr);
}
in_addr_t net_next_ip(struct in_addr curr_ip)
{
unsigned long curr;
curr = ntohl(curr_ip.s_addr);
if (curr + 1 <= ntohl(network.end)) {
curr++;
return (htonl(curr));
} else return (0);
}
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