![Guy Harris](/assets/img/avatar_default.png)
Change all wireshark.org URLs to use https. Fix some broken links while we're at it. Change-Id: I161bf8eeca43b8027605acea666032da86f5ea1c Reviewed-on: https://code.wireshark.org/review/34089 Reviewed-by: Guy Harris <guy@alum.mit.edu>
261 lines
5.5 KiB
C
261 lines
5.5 KiB
C
/*
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* randpkt.c
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* ---------
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* Creates random packet traces. Useful for debugging sniffers by testing
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* assumptions about the veracity of the data found in the packet.
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*
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* Copyright (C) 1999 by Gilbert Ramirez <gram@alumni.rice.edu>
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include <config.h>
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#include <glib.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <ui/clopts_common.h>
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#include <ui/cmdarg_err.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 <cli_main.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_message.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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#ifndef HAVE_GETOPT_LONG
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#include "wsutil/wsgetopt.h"
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#endif
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#include "randpkt_core/randpkt_core.h"
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#define INVALID_OPTION 1
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#define INVALID_TYPE 2
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#define CLOSE_ERROR 2
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/*
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* General errors and warnings are reported with an console message
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* in randpkt.
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*/
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static void
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failure_warning_message(const char *msg_format, va_list ap)
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{
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fprintf(stderr, "randpkt: ");
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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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* Report additional information for an error in command-line arguments.
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*/
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static void
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failure_message_cont(const char *msg_format, va_list ap)
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{
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vfprintf(stderr, msg_format, ap);
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fprintf(stderr, "\n");
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}
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/* Print usage statement and exit program */
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static void
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usage(gboolean is_error)
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{
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FILE *output;
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char** abbrev_list;
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char** longname_list;
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unsigned i = 0;
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if (!is_error) {
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output = stdout;
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}
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else {
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output = stderr;
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}
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fprintf(output, "Usage: randpkt [-b maxbytes] [-c count] [-t type] [-r] filename\n");
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fprintf(output, "Default max bytes (per packet) is 5000\n");
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fprintf(output, "Default count is 1000.\n");
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fprintf(output, "-r: random packet type selection\n");
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fprintf(output, "\n");
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fprintf(output, "Types:\n");
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/* Get the examples list */
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randpkt_example_list(&abbrev_list, &longname_list);
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while (abbrev_list[i] && longname_list[i]) {
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fprintf(output, "\t%-16s%s\n", abbrev_list[i], longname_list[i]);
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i++;
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}
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g_strfreev(abbrev_list);
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g_strfreev(longname_list);
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fprintf(output, "\nIf type is not specified, a random packet will be chosen\n\n");
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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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char *init_progfile_dir_error;
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int opt;
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int produce_type = -1;
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char *produce_filename = NULL;
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int produce_max_bytes = 5000;
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int produce_count = 1000;
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randpkt_example *example;
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guint8* type = NULL;
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int allrandom = FALSE;
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wtap_dumper *savedump;
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int ret = EXIT_SUCCESS;
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static const struct option long_options[] = {
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{"help", no_argument, NULL, 'h'},
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{0, 0, 0, 0 }
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};
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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 directory containing the
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* executable file.
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*/
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init_progfile_dir_error = init_progfile_dir(argv[0]);
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if (init_progfile_dir_error != NULL) {
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fprintf(stderr,
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"capinfos: Can't get pathname of directory containing the capinfos program: %s.\n",
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init_progfile_dir_error);
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g_free(init_progfile_dir_error);
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}
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init_report_message(failure_warning_message, failure_warning_message,
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NULL, NULL, NULL);
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wtap_init(TRUE);
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cmdarg_err_init(failure_warning_message, failure_message_cont);
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#ifdef _WIN32
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create_app_running_mutex();
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#endif /* _WIN32 */
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while ((opt = getopt_long(argc, argv, "b:c:ht:r", long_options, NULL)) != -1) {
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switch (opt) {
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case 'b': /* max bytes */
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produce_max_bytes = get_positive_int(optarg, "max bytes");
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if (produce_max_bytes > 65536) {
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cmdarg_err("max bytes is > 65536");
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ret = INVALID_OPTION;
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goto clean_exit;
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}
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break;
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case 'c': /* count */
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produce_count = get_positive_int(optarg, "count");
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break;
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case 't': /* type of packet to produce */
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type = g_strdup(optarg);
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break;
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case 'h':
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usage(FALSE);
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goto clean_exit;
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break;
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case 'r':
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allrandom = TRUE;
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break;
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default:
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usage(TRUE);
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ret = INVALID_OPTION;
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goto clean_exit;
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break;
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}
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}
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/* any more command line parameters? */
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if (argc > optind) {
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produce_filename = argv[optind];
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} else {
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usage(TRUE);
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ret = INVALID_OPTION;
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goto clean_exit;
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}
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if (!allrandom) {
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produce_type = randpkt_parse_type(type);
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g_free(type);
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example = randpkt_find_example(produce_type);
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if (!example) {
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ret = INVALID_OPTION;
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goto clean_exit;
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}
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ret = randpkt_example_init(example, produce_filename, produce_max_bytes);
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if (ret != EXIT_SUCCESS)
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goto clean_exit;
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randpkt_loop(example, produce_count, 0);
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} else {
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if (type) {
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fprintf(stderr, "Can't set type in random mode\n");
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ret = INVALID_TYPE;
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goto clean_exit;
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}
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produce_type = randpkt_parse_type(NULL);
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example = randpkt_find_example(produce_type);
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if (!example) {
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ret = INVALID_OPTION;
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goto clean_exit;
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}
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ret = randpkt_example_init(example, produce_filename, produce_max_bytes);
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if (ret != EXIT_SUCCESS)
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goto clean_exit;
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while (produce_count-- > 0) {
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randpkt_loop(example, 1, 0);
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produce_type = randpkt_parse_type(NULL);
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savedump = example->dump;
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example = randpkt_find_example(produce_type);
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if (!example) {
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ret = INVALID_OPTION;
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goto clean_exit;
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}
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example->dump = savedump;
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example->filename = produce_filename;
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}
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}
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if (!randpkt_example_close(example)) {
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ret = CLOSE_ERROR;
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}
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clean_exit:
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wtap_cleanup();
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return ret;
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}
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/*
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* Editor modelines - https://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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