1 files changed, 69 insertions, 0 deletions
diff --git a/src/param.c b/src/param.c
new file mode 100644
index 0000000..3c7f5fb
--- /dev/null
+++ b/src/param.c
@@ -0,0 +1,69 @@
+/* 
+ * 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 <stdlib.h>
+#include <stdio.h>
+#include <limits.h>
+#include <unistd.h>
+#define _GNU_SOURCE
+#include <getopt.h>
+#include "param.h"
+ 
+struct param param;
+
+int get_opt(int argc, char **argv)
+{
+	extern char *optarg;
+	extern int optind, opterr, optopt;
+	int c;
+	
+	optind = 2;
+	
+	param.packet_delay = 90;
+	
+	while ( (c = getopt(argc, argv, "i:t:h")) != -1) {
+		switch (c) {
+			case 'i':
+				param.iface = optarg;
+				break;
+			case 't':
+				param.packet_delay = strtol(optarg, (char**)NULL, 10);
+				if (param.packet_delay == LONG_MIN || param.packet_delay == LONG_MAX) {
+					fprintf(stderr, "Error: incorrect packet delay, using defaults.\n");
+					param.packet_delay = 90;
+				}
+				break;
+			case 'h':
+				param.flags |= 0xFFFFFFFF; /* ijungiam paskutini bita */
+				break;
+			default:
+				//fprintf(stderr, "Unknown option -%c\n", optopt);
+				return (-1);
+				break;
+		}
+	}
+	
+	if (optind - 2 == 0) {
+		fprintf(stderr, "Error: too few arguments\n");
+		return (-1);
+	}
+	
+	return (0);
+}