9423a13b2d
dladdr() takes a void * as a code pointer; have init_progfile_dir() do so, and do the casting in the calls. We don't care about the signature of the function whose address we're passing, we just want to pass a pointer to *something* in the main program. Change-Id: I9372620a97b0eb53c2bb3c0c41a238b4408f3709 Reviewed-on: https://code.wireshark.org/review/7270 Reviewed-by: Guy Harris <guy@alum.mit.edu>
221 lines
5.8 KiB
C
221 lines
5.8 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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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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_err.h>
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#include "ui/util.h"
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#include "register.h"
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static void failure_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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char *gpf_path, *pf_path;
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int gpf_open_errno, gpf_read_errno;
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int pf_open_errno, pf_read_errno;
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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 executable file.
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*/
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init_progfile_dir_error = init_progfile_dir(argv[0], (void *)main);
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if (init_progfile_dir_error != NULL) {
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fprintf(stderr, "dftest: Can't get pathname of dftest program: %s.\n",
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init_progfile_dir_error);
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}
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init_report_err(failure_message, open_failure_message,
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read_failure_message, 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();
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#endif
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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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epan_init(register_all_protocols, register_all_protocol_handoffs,
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NULL, NULL);
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/* set the c-language locale to the native environment. */
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setlocale(LC_ALL, "");
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read_prefs(&gpf_open_errno, &gpf_read_errno, &gpf_path,
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&pf_open_errno, &pf_read_errno, &pf_path);
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if (gpf_path != NULL) {
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if (gpf_open_errno != 0) {
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fprintf(stderr,
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"can't open global preferences file \"%s\": %s.\n",
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pf_path, g_strerror(gpf_open_errno));
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}
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if (gpf_read_errno != 0) {
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fprintf(stderr,
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"I/O error reading global preferences file \"%s\": %s.\n",
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pf_path, g_strerror(gpf_read_errno));
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}
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}
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if (pf_path != NULL) {
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if (pf_open_errno != 0) {
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fprintf(stderr,
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"can't open your preferences file \"%s\": %s.\n",
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pf_path, g_strerror(pf_open_errno));
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}
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if (pf_read_errno != 0) {
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fprintf(stderr,
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"I/O error reading your preferences file \"%s\": %s.\n",
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pf_path, g_strerror(pf_read_errno));
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}
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}
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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 are reported with an console message in "dftest".
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*/
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static void
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failure_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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