![Guy Harris](/assets/img/avatar_default.png)
Change-Id: Ie53b64f7e5b39a50dffb62fc0b886da71e0a3bd2 Reviewed-on: https://code.wireshark.org/review/13066 Reviewed-by: Guy Harris <guy@alum.mit.edu>
255 lines
6.2 KiB
C
255 lines
6.2 KiB
C
/* captype.c
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* Reports capture file type
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*
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* Based on capinfos.c
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* Copyright 2004 Ian Schorr
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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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <locale.h>
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#include <errno.h>
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#endif
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#ifdef HAVE_LIBZ
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#include <zlib.h> /* to get the libz version number */
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#endif
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#include <glib.h>
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#include <wiretap/wtap.h>
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#include <wsutil/crash_info.h>
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#include <wsutil/file_util.h>
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#include <wsutil/filesystem.h>
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#include <wsutil/privileges.h>
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#include <wsutil/ws_diag_control.h>
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#include <wsutil/ws_version_info.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/report_err.h>
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#include <wsutil/str_util.h>
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#ifdef _WIN32
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#include <wsutil/unicode-utils.h>
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#endif /* _WIN32 */
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#ifndef HAVE_GETOPT_LONG
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#include "wsutil/wsgetopt.h"
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#endif
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static void
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print_usage(FILE *output)
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{
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fprintf(output, "\n");
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fprintf(output, "Usage: captype <infile> ...\n");
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}
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#ifdef HAVE_PLUGINS
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/*
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* Don't report failures to load plugins because most (non-wiretap) plugins
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* *should* fail to load (because we're not linked against libwireshark and
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* dissector plugins need libwireshark).
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*/
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static void
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failure_message(const char *msg_format _U_, va_list ap _U_)
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{
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return;
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}
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#endif
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static void
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get_captype_compiled_info(GString *str)
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{
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/* LIBZ */
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g_string_append(str, ", ");
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#ifdef HAVE_LIBZ
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g_string_append(str, "with libz ");
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#ifdef ZLIB_VERSION
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g_string_append(str, ZLIB_VERSION);
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#else /* ZLIB_VERSION */
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g_string_append(str, "(version unknown)");
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#endif /* ZLIB_VERSION */
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#else /* HAVE_LIBZ */
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g_string_append(str, "without libz");
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#endif /* HAVE_LIBZ */
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}
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static void
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get_captype_runtime_info(GString *str)
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{
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/* zlib */
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#if defined(HAVE_LIBZ) && !defined(_WIN32)
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g_string_append_printf(str, ", with libz %s", zlibVersion());
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#endif
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}
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int
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main(int argc, char *argv[])
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{
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GString *comp_info_str;
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GString *runtime_info_str;
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wtap *wth;
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int err;
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gchar *err_info;
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int i;
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int opt;
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int overall_error_status;
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static const struct option long_options[] = {
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{"help", no_argument, NULL, 'h'},
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{"version", no_argument, NULL, 'v'},
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{0, 0, 0, 0 }
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};
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#ifdef HAVE_PLUGINS
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char *init_progfile_dir_error;
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#endif
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/* Set the C-language locale to the native environment. */
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setlocale(LC_ALL, "");
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/* Get the compile-time version information string */
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comp_info_str = get_compiled_version_info(NULL, get_captype_compiled_info);
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/* Get the run-time version information string */
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runtime_info_str = get_runtime_version_info(get_captype_runtime_info);
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/* Add it to the information to be reported on a crash. */
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ws_add_crash_info("Captype (Wireshark) %s\n"
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"\n"
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"%s"
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"\n"
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"%s",
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get_ws_vcs_version_info(), comp_info_str->str, runtime_info_str->str);
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#ifdef _WIN32
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arg_list_utf_16to8(argc, argv);
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create_app_running_mutex();
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#endif /* _WIN32 */
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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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init_open_routines();
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#ifdef HAVE_PLUGINS
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if ((init_progfile_dir_error = init_progfile_dir(argv[0], main))) {
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g_warning("captype: init_progfile_dir(): %s", init_progfile_dir_error);
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g_free(init_progfile_dir_error);
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} else {
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/* Register all the plugin types we have. */
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wtap_register_plugin_types(); /* Types known to libwiretap */
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init_report_err(failure_message,NULL,NULL,NULL);
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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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/* Register all libwiretap plugin modules. */
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register_all_wiretap_modules();
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}
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#endif
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/* Process the options */
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while ((opt = getopt_long(argc, argv, "hv", long_options, NULL)) !=-1) {
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switch (opt) {
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case 'h':
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printf("Captype (Wireshark) %s\n"
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"Print the file types of capture files.\n"
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"See https://www.wireshark.org for more information.\n",
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get_ws_vcs_version_info());
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print_usage(stdout);
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exit(0);
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break;
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case 'v':
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show_version("Captype (Wireshark)", comp_info_str, runtime_info_str);
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g_string_free(comp_info_str, TRUE);
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g_string_free(runtime_info_str, TRUE);
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exit(0);
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break;
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case '?': /* Bad flag - print usage message */
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print_usage(stderr);
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exit(1);
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break;
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}
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}
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if (argc < 2) {
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print_usage(stderr);
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return 1;
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}
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overall_error_status = 0;
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for (i = 1; i < argc; i++) {
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wth = wtap_open_offline(argv[i], WTAP_TYPE_AUTO, &err, &err_info, FALSE);
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if(wth) {
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printf("%s: %s\n", argv[i], wtap_file_type_subtype_short_string(wtap_file_type_subtype(wth)));
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wtap_close(wth);
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} else {
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if (err == WTAP_ERR_FILE_UNKNOWN_FORMAT)
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printf("%s: unknown\n", argv[i]);
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else {
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fprintf(stderr, "captype: Can't open %s: %s\n", argv[i],
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wtap_strerror(err));
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if (err_info != NULL) {
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fprintf(stderr, "(%s)\n", err_info);
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g_free(err_info);
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}
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overall_error_status = 1; /* remember that an error has occurred */
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}
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}
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}
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return overall_error_status;
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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: 2
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=2 tabstop=8 expandtab:
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* :indentSize=2:tabSize=8:noTabs=true:
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*/
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