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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 <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);
}
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