Initial commit.

1 files changed, 42 insertions, 0 deletions

diff --git a/src/network.c b/src/network.c
new file mode 100644
index 0000000..5f0bf42
--- /dev/null
+++ b/src/network.c
@@ -0,0 +1,42 @@
+/* 
+ * 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 inline 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);
+}