diff options
Diffstat (limited to 'captype.c')
| -rw-r--r-- | captype.c | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/captype.c b/captype.c new file mode 100644 index 0000000..080a543 --- /dev/null +++ b/captype.c @@ -0,0 +1,204 @@ +/* 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/report_message.h> +#include <wsutil/str_util.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"); +} + +/* + * Report an error in command-line arguments. + */ +static void +captype_cmdarg_err(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 +captype_cmdarg_err_cont(const char *msg_format, va_list ap) +{ + vfprintf(stderr, msg_format, ap); + fprintf(stderr, "\n"); +} + +int +main(int argc, char *argv[]) +{ + char *configuration_init_error; + static const struct report_message_routines captype_report_routines = { + failure_message, + failure_message, + open_failure_message, + read_failure_message, + write_failure_message, + cfile_open_failure_message, + cfile_dump_open_failure_message, + cfile_read_failure_message, + cfile_write_failure_message, + cfile_close_failure_message + }; + wtap *wth; + int err; + gchar *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'}, + {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(captype_cmdarg_err, captype_cmdarg_err_cont); + + /* Initialize log handler early so we can have proper logging during startup. */ + ws_log_init("captype", vcmdarg_err); + + /* Early logging command-line initialization. */ + ws_log_parse_args(&argc, argv, vcmdarg_err, 1); + + ws_noisy("Finished log init and parsing command line log arguments"); + + /* Initialize the version information. */ + ws_init_version_info("Captype", 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. + */ + configuration_init_error = configuration_init(argv[0], NULL); + 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); + } + + init_report_message("captype", &captype_report_routines); + + wtap_init(TRUE); + + /* Process the options */ + while ((opt = ws_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_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; +} |