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/* captype.c
* Reports capture file type
*
* Based on capinfos.c
* Copyright 2004 Ian Schorr
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <config.h>
#define WS_LOG_DOMAIN LOG_DOMAIN_MAIN
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <locale.h>
#include <wsutil/ws_getopt.h>
#include <glib.h>
#include <wiretap/wtap.h>
#include <wsutil/cmdarg_err.h>
#include <wsutil/file_util.h>
#include <wsutil/filesystem.h>
#include <wsutil/privileges.h>
#include <cli_main.h>
#include <wsutil/version_info.h>
#ifdef HAVE_PLUGINS
#include <wsutil/plugins.h>
#endif
#include <wsutil/str_util.h>
#include <ws_exit_codes.h>
#include <wsutil/clopts_common.h>
#include <wsutil/wslog.h>
#include "ui/failure_message.h"
static void
print_usage(FILE *output)
{
fprintf(output, "\n");
fprintf(output, "Usage: captype [options] <infile> ...\n");
fprintf(output, "\n");
fprintf(output, "Miscellaneous:\n");
fprintf(output, " -h, --help display this help and exit\n");
fprintf(output, " -v, --version display version info and exit\n");
}
int
main(int argc, char *argv[])
{
char *configuration_init_error;
wtap *wth;
int err;
char *err_info;
int i;
int opt;
int overall_error_status;
static const struct ws_option long_options[] = {
{"help", ws_no_argument, NULL, 'h'},
{"version", ws_no_argument, NULL, 'v'},
LONGOPT_WSLOG
{0, 0, 0, 0 }
};
#define OPTSTRING "hv"
static const char optstring[] = OPTSTRING;
/* Set the program name. */
g_set_prgname("captype");
/*
* Set the C-language locale to the native environment and set the
* code page to UTF-8 on Windows.
*/
#ifdef _WIN32
setlocale(LC_ALL, ".UTF-8");
#else
setlocale(LC_ALL, "");
#endif
cmdarg_err_init(stderr_cmdarg_err, stderr_cmdarg_err_cont);
/* Initialize log handler early so we can have proper logging during startup. */
ws_log_init(vcmdarg_err);
/* Early logging command-line initialization. */
ws_log_parse_args(&argc, argv, optstring, long_options, vcmdarg_err, WS_EXIT_INVALID_OPTION);
ws_noisy("Finished log init and parsing command line log arguments");
#ifdef _WIN32
create_app_running_mutex();
#endif /* _WIN32 */
/*
* Get credential information for later use.
*/
init_process_policies();
/*
* Attempt to get the pathname of the directory containing the
* executable file.
*/
configuration_init_error = configuration_init(argv[0]);
if (configuration_init_error != NULL) {
fprintf(stderr,
"captype: Can't get pathname of directory containing the captype program: %s.\n",
configuration_init_error);
g_free(configuration_init_error);
}
/* Initialize the version information. */
ws_init_version_info("Captype", NULL, NULL);
init_report_failure_message("captype");
wtap_init(true);
/* Process the options */
while ((opt = ws_getopt_long(argc, argv, optstring, long_options, NULL)) !=-1) {
switch (opt) {
case 'h':
show_help_header("Print the file types of capture files.");
print_usage(stdout);
return EXIT_SUCCESS;
case 'v':
show_version();
return EXIT_SUCCESS;
case '?': /* Bad flag - print usage message */
print_usage(stderr);
return EXIT_FAILURE;
}
}
if (argc < 2) {
print_usage(stderr);
return 1;
}
overall_error_status = 0;
for (i = 1; i < argc; i++) {
wth = wtap_open_offline(argv[i], WTAP_TYPE_AUTO, &err, &err_info, false);
if(wth) {
printf("%s: %s\n", argv[i], wtap_file_type_subtype_name(wtap_file_type_subtype(wth)));
wtap_close(wth);
} else {
if (err == WTAP_ERR_FILE_UNKNOWN_FORMAT)
printf("%s: unknown\n", argv[i]);
else {
cfile_open_failure_message(argv[i], err, err_info);
overall_error_status = 2; /* remember that an error has occurred */
}
}
}
wtap_cleanup();
free_progdirs();
return overall_error_status;
}
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