191 lines
4.6 KiB
C
191 lines
4.6 KiB
C
/* dftest.c
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* Shows display filter byte-code, for debugging dfilter routines.
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <config.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <locale.h>
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#include <string.h>
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#include <errno.h>
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#include <glib.h>
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#include <epan/epan.h>
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#include <epan/timestamp.h>
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#include <epan/prefs.h>
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#include <epan/dfilter/dfilter.h>
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#ifdef HAVE_PLUGINS
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#include <wsutil/plugins.h>
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#endif
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#include <wsutil/filesystem.h>
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#include <wsutil/privileges.h>
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#include <wsutil/report_message.h>
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#include <wiretap/wtap.h>
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#include "ui/util.h"
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#include "register.h"
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static void failure_warning_message(const char *msg_format, va_list ap);
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static void open_failure_message(const char *filename, int err,
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gboolean for_writing);
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static void read_failure_message(const char *filename, int err);
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static void write_failure_message(const char *filename, int err);
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int
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main(int argc, char **argv)
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{
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char *init_progfile_dir_error;
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char *text;
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dfilter_t *df;
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gchar *err_msg;
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/*
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* Get credential information for later use.
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*/
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init_process_policies();
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/*
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* Attempt to get the pathname of the directory containing the
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* executable file.
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*/
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init_progfile_dir_error = init_progfile_dir(argv[0], main);
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if (init_progfile_dir_error != NULL) {
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fprintf(stderr, "dftest: Can't get pathname of directory containing the dftest program: %s.\n",
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init_progfile_dir_error);
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g_free(init_progfile_dir_error);
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}
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init_report_message(failure_warning_message, failure_warning_message,
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open_failure_message, read_failure_message,
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write_failure_message);
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timestamp_set_type(TS_RELATIVE);
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timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
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#ifdef HAVE_PLUGINS
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/* Register all the plugin types we have. */
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epan_register_plugin_types(); /* Types known to libwireshark */
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/* Scan for plugins. This does *not* call their registration routines;
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that's done later. */
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scan_plugins(REPORT_LOAD_FAILURE);
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#endif
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wtap_init();
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/* Register all dissectors; we must do this before checking for the
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"-g" flag, as the "-g" flag dumps a list of fields registered
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by the dissectors, and we must do it before we read the preferences,
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in case any dissectors register preferences. */
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if (!epan_init(register_all_protocols, register_all_protocol_handoffs,
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NULL, NULL))
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return 2;
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/* set the c-language locale to the native environment. */
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setlocale(LC_ALL, "");
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/* Load libwireshark settings from the current profile. */
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epan_load_settings();
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/* notify all registered modules that have had any of their preferences
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changed either from one of the preferences file or from the command
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line that its preferences have changed. */
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prefs_apply_all();
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/* Check for filter on command line */
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if (argc <= 1) {
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fprintf(stderr, "Usage: dftest <filter>\n");
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exit(1);
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}
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/* Get filter text */
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text = get_args_as_string(argc, argv, 1);
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printf("Filter: \"%s\"\n", text);
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/* Compile it */
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if (!dfilter_compile(text, &df, &err_msg)) {
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fprintf(stderr, "dftest: %s\n", err_msg);
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g_free(err_msg);
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epan_cleanup();
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exit(2);
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}
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printf("\n");
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if (df == NULL)
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printf("Filter is empty\n");
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else
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dfilter_dump(df);
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dfilter_free(df);
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epan_cleanup();
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exit(0);
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}
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/*
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* General errors and warnings are reported with an console message
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* in "dftest".
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*/
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static void
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failure_warning_message(const char *msg_format, va_list ap)
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{
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fprintf(stderr, "dftest: ");
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vfprintf(stderr, msg_format, ap);
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fprintf(stderr, "\n");
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}
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/*
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* Open/create errors are reported with an console message in "dftest".
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*/
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static void
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open_failure_message(const char *filename, int err, gboolean for_writing)
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{
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fprintf(stderr, "dftest: ");
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fprintf(stderr, file_open_error_message(err, for_writing), filename);
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fprintf(stderr, "\n");
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}
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/*
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* Read errors are reported with an console message in "dftest".
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*/
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static void
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read_failure_message(const char *filename, int err)
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{
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fprintf(stderr, "dftest: An error occurred while reading from the file \"%s\": %s.\n",
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filename, g_strerror(err));
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}
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/*
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* Write errors are reported with an console message in "dftest".
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*/
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static void
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write_failure_message(const char *filename, int err)
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{
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fprintf(stderr, "dftest: An error occurred while writing to the file \"%s\": %s.\n",
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filename, g_strerror(err));
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}
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 8
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* tab-width: 8
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* indent-tabs-mode: t
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* End:
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*
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* vi: set shiftwidth=8 tabstop=8 noexpandtab:
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* :indentSize=8:tabSize=8:noTabs=false:
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*/
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