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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>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <locale.h>
#include <errno.h>
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
#include <glib.h>
#include <wiretap/wtap.h>
#include <ui/cmdarg_err.h>
#include <wsutil/file_util.h>
#include <wsutil/filesystem.h>
#include <wsutil/privileges.h>
#include <cli_main.h>
#include <version_info.h>
#ifdef HAVE_PLUGINS
#include <wsutil/plugins.h>
#endif
#include <wsutil/report_message.h>
#include <wsutil/str_util.h>
#ifndef HAVE_GETOPT_LONG
#include "wsutil/wsgetopt.h"
#endif
#include "ui/failure_message.h"
static void
print_usage(FILE *output)
{
fprintf(output, "\n");
fprintf(output, "Usage: captype <infile> ...\n");
}
/*
* General errors and warnings are reported with an console message
* in captype.
*/
static void
failure_warning_message(const char *msg_format, va_list ap)
{
fprintf(stderr, "captype: ");
vfprintf(stderr, msg_format, ap);
fprintf(stderr, "\n");
}
/*
* Report additional information for an error in command-line arguments.
*/
static void
failure_message_cont(const char *msg_format, va_list ap)
{
vfprintf(stderr, msg_format, ap);
fprintf(stderr, "\n");
}
int
main(int argc, char *argv[])
{
char *init_progfile_dir_error;
wtap *wth;
int err;
gchar *err_info;
int i;
int opt;
int overall_error_status;
static const struct option long_options[] = {
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'v'},
{0, 0, 0, 0 }
};
/*
* 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(failure_warning_message, failure_message_cont);
/* Initialize the version information. */
ws_init_version_info("Captype (Wireshark)", NULL, NULL, NULL);
#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.
*/
init_progfile_dir_error = init_progfile_dir(argv[0]);
if (init_progfile_dir_error != NULL) {
fprintf(stderr,
"captype: Can't get pathname of directory containing the captype program: %s.\n",
init_progfile_dir_error);
g_free(init_progfile_dir_error);
}
init_report_message(failure_warning_message, failure_warning_message,
NULL, NULL, NULL);
wtap_init(TRUE);
/* Process the options */
while ((opt = getopt_long(argc, argv, "hv", long_options, NULL)) !=-1) {
switch (opt) {
case 'h':
show_help_header("Print the file types of capture files.");
print_usage(stdout);
exit(0);
break;
case 'v':
show_version();
exit(0);
break;
case '?': /* Bad flag - print usage message */
print_usage(stderr);
exit(1);
break;
}
}
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_short_string(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("captype", argv[i], err, err_info);
overall_error_status = 2; /* remember that an error has occurred */
}
}
}
wtap_cleanup();
free_progdirs();
return overall_error_status;
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/
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