2 * Handle command-line arguments common to Wireshark and TShark
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
30 #include <epan/proto.h>
31 #include <epan/packet.h>
32 #include <epan/prefs.h>
34 #include "clopts_common.h"
35 #include "cmdarg_err.h"
38 get_natural_int(const char *string, const char *name)
43 number = strtol(string, &p, 10);
44 if (p == string || *p != '\0') {
45 cmdarg_err("The specified %s \"%s\" isn't a decimal number", name, string);
49 cmdarg_err("The specified %s \"%s\" is a negative number", name, string);
52 if (number > INT_MAX) {
53 cmdarg_err("The specified %s \"%s\" is too large (greater than %d)",
54 name, string, INT_MAX);
62 get_positive_int(const char *string, const char *name)
66 number = get_natural_int(string, name);
69 cmdarg_err("The specified %s is zero", name);