2 * Handle command-line arguments common to Ethereal and Tethereal
6 * Ethereal - Network traffic analyzer
7 * By Gerald Combs <gerald@ethereal.com>
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
32 #include <epan/proto.h>
33 #include <epan/packet.h>
35 #include "clopts_common.h"
38 * Handle the "-G" option, to cause protocol field, etc. information
42 handle_dashG_option(int argc, char **argv, char *progname)
44 if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
46 proto_registrar_dump_fields(1);
48 if (strcmp(argv[2], "fields") == 0)
49 proto_registrar_dump_fields(1);
50 else if (strcmp(argv[2], "fields2") == 0)
51 proto_registrar_dump_fields(2);
52 else if (strcmp(argv[2], "fields3") == 0)
53 proto_registrar_dump_fields(3);
54 else if (strcmp(argv[2], "protocols") == 0)
55 proto_registrar_dump_protocols();
56 else if (strcmp(argv[2], "values") == 0)
57 proto_registrar_dump_values();
58 else if (strcmp(argv[2], "decodes") == 0)
59 dissector_dump_decodes();
61 fprintf(stderr, "%s: Invalid \"%s\" option for -G flag\n", progname,
71 get_natural_int(const char *appname, const char *string, const char *name)
76 number = strtol(string, &p, 10);
77 if (p == string || *p != '\0') {
78 fprintf(stderr, "%s: The specified %s \"%s\" isn't a decimal number\n",
79 appname, name, string);
83 fprintf(stderr, "%s: The specified %s \"%s\" is a negative number\n",
84 appname, name, string);
87 if (number > INT_MAX) {
88 fprintf(stderr, "%s: The specified %s \"%s\" is too large (greater than %d)\n",
89 appname, name, string, INT_MAX);
97 get_positive_int(const char *appname, const char *string, const char *name)
101 number = get_natural_int(appname, string, name);
104 fprintf(stderr, "%s: The specified %s is zero\n",