5 * Wireshark - Network traffic analyzer
6 * By Gerald Combs <gerald@wireshark.org>
7 * Copyright 1998 Gerald Combs
9 * Shows display filter byte-code, for debugging dfilter routines.
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
36 #ifdef NEED_STRERROR_H
41 #include <epan/epan.h>
43 #include <epan/timestamp.h>
44 #include <epan/plugins.h>
45 #include <epan/filesystem.h>
46 #include <epan/privileges.h>
47 #include <epan/prefs.h>
49 #include "epan/dfilter/dfilter.h"
54 static void failure_message(const char *msg_format, va_list ap);
55 static void open_failure_message(const char *filename, int err,
56 gboolean for_writing);
57 static void read_failure_message(const char *filename, int err);
60 main(int argc, char **argv)
62 char *init_progfile_dir_error;
64 char *gpf_path, *pf_path;
65 int gpf_open_errno, gpf_read_errno;
66 int pf_open_errno, pf_read_errno;
71 * Get credential information for later use.
73 get_credential_info();
76 * Attempt to get the pathname of the executable file.
78 init_progfile_dir_error = init_progfile_dir(argv[0]);
79 if (init_progfile_dir_error != NULL) {
80 fprintf(stderr, "dftest: Can't get pathname of dftest program: %s.\n",
81 init_progfile_dir_error);
84 timestamp_set_type(TS_RELATIVE);
86 /* Register all dissectors; we must do this before checking for the
87 "-g" flag, as the "-g" flag dumps a list of fields registered
88 by the dissectors, and we must do it before we read the preferences,
89 in case any dissectors register preferences. */
90 epan_init(register_all_protocols,
91 register_all_protocol_handoffs, NULL, NULL,
92 failure_message, open_failure_message, read_failure_message);
94 /* now register the preferences for any non-dissector modules.
95 we must do that before we read the preferences as well. */
96 prefs_register_modules();
98 /* set the c-language locale to the native environment. */
99 setlocale(LC_ALL, "");
101 prefs = read_prefs(&gpf_open_errno, &gpf_read_errno, &gpf_path,
102 &pf_open_errno, &pf_read_errno, &pf_path);
103 if (gpf_path != NULL) {
104 if (gpf_open_errno != 0) {
106 "can't open global preferences file \"%s\": %s.\n",
107 pf_path, strerror(gpf_open_errno));
109 if (gpf_read_errno != 0) {
111 "I/O error reading global preferences file \"%s\": %s.\n",
112 pf_path, strerror(gpf_read_errno));
115 if (pf_path != NULL) {
116 if (pf_open_errno != 0) {
118 "can't open your preferences file \"%s\": %s.\n",
119 pf_path, strerror(pf_open_errno));
121 if (pf_read_errno != 0) {
123 "I/O error reading your preferences file \"%s\": %s.\n",
124 pf_path, strerror(pf_read_errno));
128 /* notify all registered modules that have had any of their preferences
129 changed either from one of the preferences file or from the command
130 line that its preferences have changed. */
133 /* Check for filter on command line */
135 fprintf(stderr, "Usage: dftest <filter>\n");
139 /* Get filter text */
140 text = get_args_as_string(argc, argv, 1);
142 printf("Filter: \"%s\"\n", text);
145 if (!dfilter_compile(text, &df)) {
146 fprintf(stderr, "dftest: %s\n", dfilter_error_msg);
150 printf("dfilter ptr = 0x%08x\n", GPOINTER_TO_INT(df));
155 printf("Filter is empty\n");
164 * General errors are reported with an console message in "dftest".
167 failure_message(const char *msg_format, va_list ap)
169 fprintf(stderr, "dftest: ");
170 vfprintf(stderr, msg_format, ap);
171 fprintf(stderr, "\n");
175 * Open/create errors are reported with an console message in "dftest".
178 open_failure_message(const char *filename, int err, gboolean for_writing)
180 fprintf(stderr, "dftest: ");
181 fprintf(stderr, file_open_error_message(err, for_writing), filename);
182 fprintf(stderr, "\n");
186 * Read errors are reported with an console message in "dftest".
189 read_failure_message(const char *filename, int err)
191 fprintf(stderr, "dftest: An error occurred while reading from the file \"%s\": %s.\n",
192 filename, strerror(err));