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>
34 #include <epan/prefs.h>
36 #include "clopts_common.h"
39 * Handle the "-G" option, to cause protocol field, etc. information
43 handle_dashG_option(int argc, char **argv, const char *progname)
45 char *gpf_path, *pf_path;
46 int gpf_open_errno, gpf_read_errno;
47 int pf_open_errno, pf_read_errno;
49 if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
51 proto_registrar_dump_fields(1);
53 if (strcmp(argv[2], "fields") == 0)
54 proto_registrar_dump_fields(1);
55 else if (strcmp(argv[2], "fields2") == 0)
56 proto_registrar_dump_fields(2);
57 else if (strcmp(argv[2], "fields3") == 0)
58 proto_registrar_dump_fields(3);
59 else if (strcmp(argv[2], "protocols") == 0)
60 proto_registrar_dump_protocols();
61 else if (strcmp(argv[2], "values") == 0)
62 proto_registrar_dump_values();
63 else if (strcmp(argv[2], "decodes") == 0)
64 dissector_dump_decodes();
65 else if (strcmp(argv[2], "defaultprefs") == 0)
67 else if (strcmp(argv[2], "currentprefs") == 0) {
68 read_prefs(&gpf_open_errno, &gpf_read_errno, &gpf_path,
69 &pf_open_errno, &pf_read_errno, &pf_path);
72 fprintf(stderr, "%s: Invalid \"%s\" option for -G flag\n", progname,
82 get_natural_int(const char *appname, const char *string, const char *name)
87 number = strtol(string, &p, 10);
88 if (p == string || *p != '\0') {
89 fprintf(stderr, "%s: The specified %s \"%s\" isn't a decimal number\n",
90 appname, name, string);
94 fprintf(stderr, "%s: The specified %s \"%s\" is a negative number\n",
95 appname, name, string);
98 if (number > INT_MAX) {
99 fprintf(stderr, "%s: The specified %s \"%s\" is too large (greater than %d)\n",
100 appname, name, string, INT_MAX);
108 get_positive_int(const char *appname, const char *string, const char *name)
112 number = get_natural_int(appname, string, name);
115 fprintf(stderr, "%s: The specified %s is zero\n",