3 * Text-mode variant of Fileshark, based off of TShark,
5 * Wireshark - Network traffic analyzer
6 * By Gerald Combs <gerald@wireshark.org>
7 * Copyright 1998 Gerald Combs
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
49 #ifdef HAVE_SYS_STAT_H
50 # include <sys/stat.h>
54 #include "wsutil/wsgetopt.h"
59 #include <epan/exceptions.h>
60 #include <epan/epan-int.h>
61 #include <epan/epan.h>
63 #include <wsutil/clopts_common.h>
64 #include <wsutil/cmdarg_err.h>
65 #include <wsutil/crash_info.h>
66 #include <wsutil/privileges.h>
67 #include <wsutil/file_util.h>
68 #include <wsutil/filesystem.h>
69 #include <wsutil/report_err.h>
70 #include <wsutil/copyright_info.h>
71 #include <wsutil/ws_version_info.h>
74 #include <epan/timestamp.h>
75 #include <epan/packet.h>
77 #include <epan/wslua/init_wslua.h>
80 #include "frame_tvbuff.h"
81 #include <epan/disabled_protos.h>
82 #include <epan/prefs.h>
83 #include <epan/column.h>
84 #include <epan/print.h>
85 #include <epan/addr_resolv.h>
87 #include "version_info.h"
89 #include <epan/epan_dissect.h>
91 #include <epan/stat_cmd_args.h>
92 #include <epan/timestamp.h>
93 #include <epan/ex-opt.h>
94 #include <filetap/ftap.h>
95 #include <wiretap/wtap-int.h>
96 #include <wiretap/file_wrappers.h>
99 #include <wsutil/unicode-utils.h>
103 #include <epan/funnel.h>
106 #include <wsutil/plugins.h>
110 * This is the template for the decode as option; it is shared between the
111 * various functions that output the usage for this parameter.
113 static const gchar decode_as_arg_template[] = "<layer_type>==<selector>,<decode_as_protocol>";
115 static guint32 cum_bytes;
116 static const frame_data *ref;
117 static frame_data ref_frame;
118 static frame_data *prev_dis;
119 static frame_data prev_dis_frame;
120 static frame_data *prev_cap;
121 static frame_data prev_cap_frame;
123 static const char* prev_display_dissector_name = NULL;
125 static gboolean perform_two_pass_analysis;
128 * The way the packet decode is to be written.
131 WRITE_TEXT, /* summary or detail text */
132 WRITE_XML, /* PDML or PSML */
133 WRITE_FIELDS /* User defined list of fields */
134 /* Add CSV and the like here */
137 static output_action_e output_action;
138 static gboolean do_dissection; /* TRUE if we have to dissect each packet */
139 static gboolean print_packet_info; /* TRUE if we're to print packet information */
140 static gint print_summary = -1; /* TRUE if we're to print packet summary information */
141 static gboolean print_details; /* TRUE if we're to print packet details information */
142 static gboolean print_hex; /* TRUE if we're to print hex/ascci information */
143 static gboolean line_buffered;
144 static gboolean really_quiet = FALSE;
146 static print_format_e print_format = PR_FMT_TEXT;
147 static print_stream_t *print_stream;
149 static output_fields_t* output_fields = NULL;
151 /* The line separator used between packets, changeable via the -S option */
152 static const char *separator = "";
154 static int load_cap_file(capture_file *, int, gint64);
155 static gboolean process_packet(capture_file *cf, epan_dissect_t *edt, gint64 offset,
156 struct wtap_pkthdr *whdr, const guchar *pd, guint tap_flags);
157 static void show_print_file_io_error(int err);
158 static gboolean write_preamble(capture_file *cf);
159 static gboolean print_packet(capture_file *cf, epan_dissect_t *edt);
160 static gboolean write_finale(void);
161 static const char *cf_open_error_message(int err, gchar *err_info,
162 gboolean for_writing, int file_type);
164 static void open_failure_message(const char *filename, int err,
165 gboolean for_writing);
166 static void failure_message(const char *msg_format, va_list ap);
167 static void read_failure_message(const char *filename, int err);
168 static void write_failure_message(const char *filename, int err);
169 static void failure_message_cont(const char *msg_format, va_list ap);
175 const char *sstr; /* The short string */
176 const char *lstr; /* The long string */
180 string_compare(gconstpointer a, gconstpointer b)
182 return strcmp(((const struct string_elem *)a)->sstr,
183 ((const struct string_elem *)b)->sstr);
187 string_elem_print(gpointer data, gpointer not_used _U_)
189 fprintf(stderr, " %s - %s\n",
190 ((struct string_elem *)data)->sstr,
191 ((struct string_elem *)data)->lstr);
196 print_usage(gboolean print_ver)
204 "Dump and analyze network traffic.\n"
205 "See http://www.wireshark.org for more information.\n"
208 get_ws_vcs_version_info(), get_copyright_info());
212 fprintf(output, "\n");
213 fprintf(output, "Usage: tfshark [options] ...\n");
214 fprintf(output, "\n");
216 /*fprintf(output, "\n");*/
217 fprintf(output, "Input file:\n");
218 fprintf(output, " -r <infile> set the filename to read from (no pipes or stdin!)\n");
220 fprintf(output, "\n");
221 fprintf(output, "Processing:\n");
222 fprintf(output, " -2 perform a two-pass analysis\n");
223 fprintf(output, " -R <read filter> packet Read filter in Wireshark display filter syntax\n");
224 fprintf(output, " -Y <display filter> packet displaY filter in Wireshark display filter\n");
225 fprintf(output, " syntax\n");
226 fprintf(output, " -d %s ...\n", decode_as_arg_template);
227 fprintf(output, " \"Decode As\", see the man page for details\n");
228 fprintf(output, " Example: tcp.port==8888,http\n");
230 /*fprintf(output, "\n");*/
231 fprintf(output, "Output:\n");
232 fprintf(output, " -C <config profile> start with specified configuration profile\n");
233 fprintf(output, " -V add output of packet tree (Packet Details)\n");
234 fprintf(output, " -O <protocols> Only show packet details of these protocols, comma\n");
235 fprintf(output, " separated\n");
236 fprintf(output, " -S <separator> the line separator to print between packets\n");
237 fprintf(output, " -x add output of hex and ASCII dump (Packet Bytes)\n");
238 fprintf(output, " -T pdml|ps|psml|text|fields\n");
239 fprintf(output, " format of text output (def: text)\n");
240 fprintf(output, " -e <field> field to print if -Tfields selected (e.g. tcp.port,\n");
241 fprintf(output, " _ws.col.Info)\n");
242 fprintf(output, " this option can be repeated to print multiple fields\n");
243 fprintf(output, " -E<fieldsoption>=<value> set options for output when -Tfields selected:\n");
244 fprintf(output, " header=y|n switch headers on and off\n");
245 fprintf(output, " separator=/t|/s|<char> select tab, space, printable character as separator\n");
246 fprintf(output, " occurrence=f|l|a print first, last or all occurrences of each field\n");
247 fprintf(output, " aggregator=,|/s|<char> select comma, space, printable character as\n");
248 fprintf(output, " aggregator\n");
249 fprintf(output, " quote=d|s|n select double, single, no quotes for values\n");
250 fprintf(output, " -t a|ad|d|dd|e|r|u|ud output format of time stamps (def: r: rel. to first)\n");
251 fprintf(output, " -u s|hms output format of seconds (def: s: seconds)\n");
252 fprintf(output, " -l flush standard output after each packet\n");
253 fprintf(output, " -q be more quiet on stdout (e.g. when using statistics)\n");
254 fprintf(output, " -Q only log true errors to stderr (quieter than -q)\n");
255 fprintf(output, " -X <key>:<value> eXtension options, see the man page for details\n");
256 fprintf(output, " -z <statistics> various statistics, see the man page for details\n");
258 fprintf(output, "\n");
259 fprintf(output, "Miscellaneous:\n");
260 fprintf(output, " -h display this help and exit\n");
261 fprintf(output, " -v display version info and exit\n");
262 fprintf(output, " -o <name>:<value> ... override preference setting\n");
263 fprintf(output, " -K <keytab> keytab file to use for kerberos decryption\n");
264 fprintf(output, " -G [report] dump one of several available reports and exit\n");
265 fprintf(output, " default report=\"fields\"\n");
266 fprintf(output, " use \"-G ?\" for more help\n");
270 glossary_option_help(void)
276 fprintf(output, "TFShark %s\n", get_ws_vcs_version_info());
278 fprintf(output, "\n");
279 fprintf(output, "Usage: tfshark -G [report]\n");
280 fprintf(output, "\n");
281 fprintf(output, "Glossary table reports:\n");
282 fprintf(output, " -G column-formats dump column format codes and exit\n");
283 fprintf(output, " -G decodes dump \"layer type\"/\"decode as\" associations and exit\n");
284 fprintf(output, " -G fields dump fields glossary and exit\n");
285 fprintf(output, " -G ftypes dump field type basic and descriptive names\n");
286 fprintf(output, " -G heuristic-decodes dump heuristic dissector tables\n");
287 fprintf(output, " -G plugins dump installed plugins and exit\n");
288 fprintf(output, " -G protocols dump protocols in registration database and exit\n");
289 fprintf(output, " -G values dump value, range, true/false strings and exit\n");
290 fprintf(output, "\n");
291 fprintf(output, "Preference reports:\n");
292 fprintf(output, " -G currentprefs dump current preferences and exit\n");
293 fprintf(output, " -G defaultprefs dump default preferences and exit\n");
294 fprintf(output, "\n");
298 * For a dissector table, print on the stream described by output,
299 * its short name (which is what's used in the "-d" option) and its
303 display_dissector_table_names(const char *table_name, const char *ui_name,
306 if ((prev_display_dissector_name == NULL) ||
307 (strcmp(prev_display_dissector_name, table_name) != 0)) {
308 fprintf((FILE *)output, "\t%s (%s)\n", table_name, ui_name);
309 prev_display_dissector_name = table_name;
314 * For a dissector handle, print on the stream described by output,
315 * the filter name (which is what's used in the "-d" option) and the full
316 * name for the protocol that corresponds to this handle.
319 display_dissector_names(const gchar *table _U_, gpointer handle, gpointer output)
322 const gchar *proto_filter_name;
323 const gchar *proto_ui_name;
325 proto_id = dissector_handle_get_protocol_index((dissector_handle_t)handle);
327 if (proto_id != -1) {
328 proto_filter_name = proto_get_protocol_filter_name(proto_id);
329 proto_ui_name = proto_get_protocol_name(proto_id);
330 g_assert(proto_filter_name != NULL);
331 g_assert(proto_ui_name != NULL);
333 if ((prev_display_dissector_name == NULL) ||
334 (strcmp(prev_display_dissector_name, proto_filter_name) != 0)) {
335 fprintf((FILE *)output, "\t%s (%s)\n",
338 prev_display_dissector_name = proto_filter_name;
344 * The protocol_name_search structure is used by find_protocol_name_func()
345 * to pass parameters and store results
347 struct protocol_name_search{
348 gchar *searched_name; /* Protocol filter name we are looking for */
349 dissector_handle_t matched_handle; /* Handle for a dissector whose protocol has the specified filter name */
350 guint nb_match; /* How many dissectors matched searched_name */
352 typedef struct protocol_name_search *protocol_name_search_t;
355 * This function parses all dissectors associated with a table to find the
356 * one whose protocol has the specified filter name. It is called
357 * as a reference function in a call to dissector_table_foreach_handle.
358 * The name we are looking for, as well as the results, are stored in the
359 * protocol_name_search struct pointed to by user_data.
360 * If called using dissector_table_foreach_handle, we actually parse the
361 * whole list of dissectors.
364 find_protocol_name_func(const gchar *table _U_, gpointer handle, gpointer user_data)
368 const gchar *protocol_filter_name;
369 protocol_name_search_t search_info;
373 search_info = (protocol_name_search_t)user_data;
375 proto_id = dissector_handle_get_protocol_index((dissector_handle_t)handle);
376 if (proto_id != -1) {
377 protocol_filter_name = proto_get_protocol_filter_name(proto_id);
378 g_assert(protocol_filter_name != NULL);
379 if (strcmp(protocol_filter_name, search_info->searched_name) == 0) {
381 if (search_info->nb_match == 0) {
382 /* Record this handle only if this is the first match */
383 search_info->matched_handle = (dissector_handle_t)handle; /* Record the handle for this matching dissector */
385 search_info->nb_match++;
391 * Allow dissector key names to be sorted alphabetically
395 compare_dissector_key_name(gconstpointer dissector_a, gconstpointer dissector_b)
397 return strcmp((const char*)dissector_a, (const char*)dissector_b);
401 * Print all layer type names supported.
402 * We send the output to the stream described by the handle output.
406 fprint_all_layer_types(FILE *output)
409 prev_display_dissector_name = NULL;
410 dissector_all_tables_foreach_table(display_dissector_table_names, (gpointer)output, (GCompareFunc)compare_dissector_key_name);
414 * Print all protocol names supported for a specific layer type.
415 * table_name contains the layer type name in which the search is performed.
416 * We send the output to the stream described by the handle output.
420 fprint_all_protocols_for_layer_types(FILE *output, gchar *table_name)
423 prev_display_dissector_name = NULL;
424 dissector_table_foreach_handle(table_name,
425 display_dissector_names,
430 * The function below parses the command-line parameters for the decode as
431 * feature (a string pointer by cl_param).
432 * It checks the format of the command-line, searches for a matching table
433 * and dissector. If a table/dissector match is not found, we display a
434 * summary of the available tables/dissectors (on stderr) and return FALSE.
435 * If everything is fine, we get the "Decode as" preference activated,
436 * then we return TRUE.
439 add_decode_as(const gchar *cl_param)
442 guint32 selector, selector2;
443 gchar *decoded_param;
444 gchar *remaining_param;
446 gchar *dissector_str;
447 dissector_handle_t dissector_matching;
448 dissector_table_t table_matching;
449 ftenum_t dissector_table_selector_type;
450 struct protocol_name_search user_protocol_name;
454 /* The following code will allocate and copy the command-line options in a string pointed by decoded_param */
457 decoded_param = g_strdup(cl_param);
458 g_assert(decoded_param);
461 /* The lines below will parse this string (modifying it) to extract all
462 necessary information. Note that decoded_param is still needed since
463 strings are not copied - we just save pointers. */
465 /* This section extracts a layer type (table_name) from decoded_param */
466 table_name = decoded_param; /* Layer type string starts from beginning */
468 remaining_param = strchr(table_name, '=');
469 if (remaining_param == NULL) {
470 cmdarg_err("Parameter \"%s\" doesn't follow the template \"%s\"", cl_param, decode_as_arg_template);
471 /* If the argument does not follow the template, carry on anyway to check
472 if the table name is at least correct. If remaining_param is NULL,
473 we'll exit anyway further down */
476 *remaining_param = '\0'; /* Terminate the layer type string (table_name) where '=' was detected */
479 /* Remove leading and trailing spaces from the table name */
480 while ( table_name[0] == ' ' )
482 while ( table_name[strlen(table_name) - 1] == ' ' )
483 table_name[strlen(table_name) - 1] = '\0'; /* Note: if empty string, while loop will eventually exit */
485 /* The following part searches a table matching with the layer type specified */
486 table_matching = NULL;
488 /* Look for the requested table */
489 if ( !(*(table_name)) ) { /* Is the table name empty, if so, don't even search for anything, display a message */
490 cmdarg_err("No layer type specified"); /* Note, we don't exit here, but table_matching will remain NULL, so we exit below */
493 table_matching = find_dissector_table(table_name);
494 if (!table_matching) {
495 cmdarg_err("Unknown layer type -- %s", table_name); /* Note, we don't exit here, but table_matching will remain NULL, so we exit below */
499 if (!table_matching) {
500 /* Display a list of supported layer types to help the user, if the
501 specified layer type was not found */
502 cmdarg_err("Valid layer types are:");
503 fprint_all_layer_types(stderr);
505 if (remaining_param == NULL || !table_matching) {
506 /* Exit if the layer type was not found, or if no '=' separator was found
508 g_free(decoded_param);
512 if (*(remaining_param + 1) != '=') { /* Check for "==" and not only '=' */
513 cmdarg_err("WARNING: -d requires \"==\" instead of \"=\". Option will be treated as \"%s==%s\"", table_name, remaining_param + 1);
516 remaining_param++; /* Move to the second '=' */
517 *remaining_param = '\0'; /* Remove the second '=' */
519 remaining_param++; /* Position after the layer type string */
521 /* This section extracts a selector value (selector_str) from decoded_param */
523 selector_str = remaining_param; /* Next part starts with the selector number */
525 remaining_param = strchr(selector_str, ',');
526 if (remaining_param == NULL) {
527 cmdarg_err("Parameter \"%s\" doesn't follow the template \"%s\"", cl_param, decode_as_arg_template);
528 /* If the argument does not follow the template, carry on anyway to check
529 if the selector value is at least correct. If remaining_param is NULL,
530 we'll exit anyway further down */
533 *remaining_param = '\0'; /* Terminate the selector number string (selector_str) where ',' was detected */
536 dissector_table_selector_type = get_dissector_table_selector_type(table_name);
538 switch (dissector_table_selector_type) {
544 /* The selector for this table is an unsigned number. Parse it as such.
545 There's no need to remove leading and trailing spaces from the
546 selector number string, because sscanf will do that for us. */
547 switch (sscanf(selector_str, "%u%c%u", &selector, &op, &selector2)) {
552 if (op != ':' && op != '-') {
553 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
554 g_free(decoded_param);
558 if ((selector2 == 0) || ((guint64)selector + selector2 - 1) > G_MAXUINT32) {
559 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
560 g_free(decoded_param);
564 else if (selector2 < selector) {
565 /* We could swap them for the user, but maybe it's better to call
566 * this out as an error in case it's not what was intended? */
567 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
568 g_free(decoded_param);
573 cmdarg_err("Invalid selector number \"%s\"", selector_str);
574 g_free(decoded_param);
583 /* The selector for this table is a string. */
587 /* There are currently no dissector tables with any types other
588 than the ones listed above. */
589 g_assert_not_reached();
592 if (remaining_param == NULL) {
593 /* Exit if no ',' separator was found (see above) */
594 cmdarg_err("Valid protocols for layer type \"%s\" are:", table_name);
595 fprint_all_protocols_for_layer_types(stderr, table_name);
596 g_free(decoded_param);
600 remaining_param++; /* Position after the selector number string */
602 /* This section extracts a protocol filter name (dissector_str) from decoded_param */
604 dissector_str = remaining_param; /* All the rest of the string is the dissector (decode as protocol) name */
606 /* Remove leading and trailing spaces from the dissector name */
607 while ( dissector_str[0] == ' ' )
609 while ( dissector_str[strlen(dissector_str) - 1] == ' ' )
610 dissector_str[strlen(dissector_str) - 1] = '\0'; /* Note: if empty string, while loop will eventually exit */
612 dissector_matching = NULL;
614 /* We now have a pointer to the handle for the requested table inside the variable table_matching */
615 if ( ! (*dissector_str) ) { /* Is the dissector name empty, if so, don't even search for a matching dissector and display all dissectors found for the selected table */
616 cmdarg_err("No protocol name specified"); /* Note, we don't exit here, but dissector_matching will remain NULL, so we exit below */
619 user_protocol_name.nb_match = 0;
620 user_protocol_name.searched_name = dissector_str;
621 user_protocol_name.matched_handle = NULL;
623 dissector_table_foreach_handle(table_name, find_protocol_name_func, &user_protocol_name); /* Go and perform the search for this dissector in the this table's dissectors' names and shortnames */
625 if (user_protocol_name.nb_match != 0) {
626 dissector_matching = user_protocol_name.matched_handle;
627 if (user_protocol_name.nb_match > 1) {
628 cmdarg_err("WARNING: Protocol \"%s\" matched %u dissectors, first one will be used", dissector_str, user_protocol_name.nb_match);
632 /* OK, check whether the problem is that there isn't any such
633 protocol, or that there is but it's not specified as a protocol
634 that's valid for that dissector table.
635 Note, we don't exit here, but dissector_matching will remain NULL,
637 if (proto_get_id_by_filter_name(dissector_str) == -1) {
638 /* No such protocol */
639 cmdarg_err("Unknown protocol -- \"%s\"", dissector_str);
641 cmdarg_err("Protocol \"%s\" isn't valid for layer type \"%s\"",
642 dissector_str, table_name);
647 if (!dissector_matching) {
648 cmdarg_err("Valid protocols for layer type \"%s\" are:", table_name);
649 fprint_all_protocols_for_layer_types(stderr, table_name);
650 g_free(decoded_param);
654 /* This is the end of the code that parses the command-line options.
655 All information is now stored in the variables:
659 The above variables that are strings are still pointing to areas within
660 decoded_parm. decoded_parm thus still needs to be kept allocated in
661 until we stop needing these variables
662 decoded_param will be deallocated at each exit point of this function */
665 /* We now have a pointer to the handle for the requested dissector
666 (requested protocol) inside the variable dissector_matching */
667 switch (dissector_table_selector_type) {
673 /* The selector for this table is an unsigned number. */
675 dissector_change_uint(table_name, selector, dissector_matching);
676 } else if (op == ':') {
677 for (i = selector; i < (guint64)selector + selector2; i++) {
678 dissector_change_uint(table_name, (guint32)i, dissector_matching);
680 } else { /* op == '-' */
681 for (i = selector; i <= selector2; i++) {
682 dissector_change_uint(table_name, (guint32)i, dissector_matching);
691 /* The selector for this table is a string. */
692 dissector_change_string(table_name, selector_str, dissector_matching);
696 /* There are currently no dissector tables with any types other
697 than the ones listed above. */
698 g_assert_not_reached();
700 g_free(decoded_param); /* "Decode As" rule has been successfully added */
705 tfshark_log_handler (const gchar *log_domain, GLogLevelFlags log_level,
706 const gchar *message, gpointer user_data)
708 /* ignore log message, if log_level isn't interesting based
709 upon the console log preferences.
710 If the preferences haven't been loaded loaded yet, display the
713 The default console_log_level preference value is such that only
714 ERROR, CRITICAL and WARNING level messages are processed;
715 MESSAGE, INFO and DEBUG level messages are ignored.
717 XXX: Aug 07, 2009: Prior tshark g_log code was hardwired to process only
718 ERROR and CRITICAL level messages so the current code is a behavioral
719 change. The current behavior is the same as in Wireshark.
721 if ((log_level & G_LOG_LEVEL_MASK & prefs.console_log_level) == 0 &&
722 prefs.console_log_level != 0) {
726 g_log_default_handler(log_domain, log_level, message, user_data);
731 print_current_user(void) {
732 gchar *cur_user, *cur_group;
734 if (started_with_special_privs()) {
735 cur_user = get_cur_username();
736 cur_group = get_cur_groupname();
737 fprintf(stderr, "Running as user \"%s\" and group \"%s\".",
738 cur_user, cur_group);
741 if (running_with_special_privs()) {
742 fprintf(stderr, " This could be dangerous.");
744 fprintf(stderr, "\n");
749 show_version(GString *comp_info_str, GString *runtime_info_str)
751 printf("TFShark %s\n"
758 get_ws_vcs_version_info(), get_copyright_info(), comp_info_str->str,
759 runtime_info_str->str);
763 main(int argc, char *argv[])
765 GString *comp_info_str;
766 GString *runtime_info_str;
767 char *init_progfile_dir_error;
769 gboolean arg_error = FALSE;
771 char *gpf_path, *pf_path;
772 char *gdp_path, *dp_path;
773 int gpf_open_errno, gpf_read_errno;
774 int pf_open_errno, pf_read_errno;
775 int gdp_open_errno, gdp_read_errno;
776 int dp_open_errno, dp_read_errno;
778 volatile int exit_status = 0;
779 gboolean quiet = FALSE;
780 gchar *volatile cf_name = NULL;
781 gchar *rfilter = NULL;
782 gchar *dfilter = NULL;
783 dfilter_t *rfcode = NULL;
784 dfilter_t *dfcode = NULL;
788 gchar *output_only = NULL;
790 /* the leading - ensures that getopt() does not permute the argv[] entries
791 we have to make sure that the first getopt() preserves the content of argv[]
792 for the subsequent getopt_long() call */
793 #define OPTSTRING "-2C:d:e:E:hK:lo:O:qQr:R:S:t:T:u:vVxX:Y:z:"
795 static const char optstring[] = OPTSTRING;
797 cmdarg_err_init(failure_message, failure_message_cont);
799 /* Assemble the compile-time version information string */
800 comp_info_str = g_string_new("Compiled ");
801 get_compiled_version_info(comp_info_str, NULL, epan_get_compiled_version_info);
803 /* Assemble the run-time version information string */
804 runtime_info_str = g_string_new("Running ");
805 get_runtime_version_info(runtime_info_str, NULL);
807 /* Add it to the information to be reported on a crash. */
808 ws_add_crash_info("TFShark %s\n"
813 get_ws_vcs_version_info(), comp_info_str->str, runtime_info_str->str);
816 arg_list_utf_16to8(argc, argv);
817 create_app_running_mutex();
818 #if !GLIB_CHECK_VERSION(2,31,0)
824 * Get credential information for later use.
826 init_process_policies();
829 * Attempt to get the pathname of the executable file.
831 init_progfile_dir_error = init_progfile_dir(argv[0], main);
832 if (init_progfile_dir_error != NULL) {
833 fprintf(stderr, "tfshark: Can't get pathname of tfshark program: %s.\n",
834 init_progfile_dir_error);
838 * In order to have the -X opts assigned before the wslua machine starts
839 * we need to call getopts before epan_init() gets called.
842 optind_initial = optind;
844 while ((opt = getopt(argc, argv, optstring)) != -1) {
846 case 'C': /* Configuration Profile */
847 if (profile_exists (optarg, FALSE)) {
848 set_profile_name (optarg);
850 cmdarg_err("Configuration Profile \"%s\" does not exist", optarg);
854 case 'O': /* Only output these protocols */
855 output_only = g_strdup(optarg);
857 case 'V': /* Verbose */
858 print_details = TRUE;
859 print_packet_info = TRUE;
861 case 'x': /* Print packet data in hex (and ASCII) */
863 /* The user asked for hex output, so let's ensure they get it,
864 * even if they're writing to a file.
866 print_packet_info = TRUE;
877 * Print packet summary information is the default, unless either -V or -x
878 * were specified. Note that this is new behavior, which
879 * allows for the possibility of printing only hex/ascii output without
880 * necessarily requiring that either the summary or details be printed too.
882 if (print_summary == -1)
883 print_summary = (print_details || print_hex) ? FALSE : TRUE;
885 optind = optind_initial;
890 /** Send All g_log messages to our own handler **/
894 G_LOG_LEVEL_CRITICAL|
899 G_LOG_FLAG_FATAL|G_LOG_FLAG_RECURSION;
901 g_log_set_handler(NULL,
902 (GLogLevelFlags)log_flags,
903 tfshark_log_handler, NULL /* user_data */);
904 g_log_set_handler(LOG_DOMAIN_MAIN,
905 (GLogLevelFlags)log_flags,
906 tfshark_log_handler, NULL /* user_data */);
908 initialize_funnel_ops();
910 init_report_err(failure_message, open_failure_message, read_failure_message,
911 write_failure_message);
913 timestamp_set_type(TS_RELATIVE);
914 timestamp_set_precision(TS_PREC_AUTO);
915 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
917 init_open_routines();
920 /* Register all the plugin types we have. */
921 epan_register_plugin_types(); /* Types known to libwireshark */
922 ftap_register_plugin_types(); /* Types known to libfiletap */
924 /* Scan for plugins. This does *not* call their registration routines;
925 that's done later. */
928 /* Register all libfiletap plugin modules. */
929 register_all_filetap_modules();
933 /* Register all dissectors; we must do this before checking for the
934 "-G" flag, as the "-G" flag dumps information registered by the
935 dissectors, and we must do it before we read the preferences, in
936 case any dissectors register preferences. */
937 epan_init(register_all_protocols, register_all_protocol_handoffs, NULL, NULL);
939 /* Register all tap listeners; we do this before we parse the arguments,
940 as the "-z" argument can specify a registered tap. */
942 /* we register the plugin taps before the other taps because
943 stats_tree taps plugins will be registered as tap listeners
944 by stats_tree_stat.c and need to registered before that */
946 /* XXX Disable tap registration for now until we can get tfshark set up with
947 * its own set of taps and the necessary registration function etc.
949 register_all_plugin_tap_listeners();
951 register_all_tap_listeners();
954 /* If invoked with the "-G" flag, we dump out information based on
955 the argument to the "-G" flag; if no argument is specified,
956 for backwards compatibility we dump out a glossary of display
959 XXX - we do this here, for now, to support "-G" with no arguments.
960 If none of our build or other processes uses "-G" with no arguments,
961 we can just process it with the other arguments. */
962 if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
963 proto_initialize_all_prefixes();
966 proto_registrar_dump_fields();
968 if (strcmp(argv[2], "column-formats") == 0)
969 column_dump_column_formats();
970 else if (strcmp(argv[2], "currentprefs") == 0) {
971 read_prefs(&gpf_open_errno, &gpf_read_errno, &gpf_path,
972 &pf_open_errno, &pf_read_errno, &pf_path);
975 else if (strcmp(argv[2], "decodes") == 0)
976 dissector_dump_decodes();
977 else if (strcmp(argv[2], "defaultprefs") == 0)
979 else if (strcmp(argv[2], "fields") == 0)
980 proto_registrar_dump_fields();
981 else if (strcmp(argv[2], "ftypes") == 0)
982 proto_registrar_dump_ftypes();
983 else if (strcmp(argv[2], "heuristic-decodes") == 0)
984 dissector_dump_heur_decodes();
985 else if (strcmp(argv[2], "plugins") == 0) {
990 wslua_plugins_dump_all();
993 else if (strcmp(argv[2], "protocols") == 0)
994 proto_registrar_dump_protocols();
995 else if (strcmp(argv[2], "values") == 0)
996 proto_registrar_dump_values();
997 else if (strcmp(argv[2], "?") == 0)
998 glossary_option_help();
999 else if (strcmp(argv[2], "-?") == 0)
1000 glossary_option_help();
1002 cmdarg_err("Invalid \"%s\" option for -G flag, enter -G ? for more help.", argv[2]);
1009 /* Set the C-language locale to the native environment. */
1010 setlocale(LC_ALL, "");
1012 prefs_p = read_prefs(&gpf_open_errno, &gpf_read_errno, &gpf_path,
1013 &pf_open_errno, &pf_read_errno, &pf_path);
1014 if (gpf_path != NULL) {
1015 if (gpf_open_errno != 0) {
1016 cmdarg_err("Can't open global preferences file \"%s\": %s.",
1017 pf_path, g_strerror(gpf_open_errno));
1019 if (gpf_read_errno != 0) {
1020 cmdarg_err("I/O error reading global preferences file \"%s\": %s.",
1021 pf_path, g_strerror(gpf_read_errno));
1024 if (pf_path != NULL) {
1025 if (pf_open_errno != 0) {
1026 cmdarg_err("Can't open your preferences file \"%s\": %s.", pf_path,
1027 g_strerror(pf_open_errno));
1029 if (pf_read_errno != 0) {
1030 cmdarg_err("I/O error reading your preferences file \"%s\": %s.",
1031 pf_path, g_strerror(pf_read_errno));
1037 /* Read the disabled protocols file. */
1038 read_disabled_protos_list(&gdp_path, &gdp_open_errno, &gdp_read_errno,
1039 &dp_path, &dp_open_errno, &dp_read_errno);
1040 if (gdp_path != NULL) {
1041 if (gdp_open_errno != 0) {
1042 cmdarg_err("Could not open global disabled protocols file\n\"%s\": %s.",
1043 gdp_path, g_strerror(gdp_open_errno));
1045 if (gdp_read_errno != 0) {
1046 cmdarg_err("I/O error reading global disabled protocols file\n\"%s\": %s.",
1047 gdp_path, g_strerror(gdp_read_errno));
1051 if (dp_path != NULL) {
1052 if (dp_open_errno != 0) {
1054 "Could not open your disabled protocols file\n\"%s\": %s.", dp_path,
1055 g_strerror(dp_open_errno));
1057 if (dp_read_errno != 0) {
1059 "I/O error reading your disabled protocols file\n\"%s\": %s.", dp_path,
1060 g_strerror(dp_read_errno));
1065 cap_file_init(&cfile);
1067 /* Print format defaults to this. */
1068 print_format = PR_FMT_TEXT;
1070 output_fields = output_fields_new();
1072 /* Now get our args */
1073 while ((opt = getopt(argc, argv, optstring)) != -1) {
1075 case '2': /* Perform two pass analysis */
1076 perform_two_pass_analysis = TRUE;
1079 /* Configuration profile settings were already processed just ignore them this time*/
1081 case 'd': /* Decode as rule */
1082 if (!add_decode_as(optarg))
1085 #if defined(HAVE_HEIMDAL_KERBEROS) || defined(HAVE_MIT_KERBEROS)
1086 case 'K': /* Kerberos keytab file */
1087 read_keytab_file(optarg);
1092 output_fields_add(output_fields, optarg);
1096 if (!output_fields_set_option(output_fields, optarg)) {
1097 cmdarg_err("\"%s\" is not a valid field output option=value pair.", optarg);
1098 output_fields_list_options(stderr);
1103 case 'h': /* Print help and exit */
1107 case 'l': /* "Line-buffer" standard output */
1108 /* This isn't line-buffering, strictly speaking, it's just
1109 flushing the standard output after the information for
1110 each packet is printed; however, that should be good
1111 enough for all the purposes to which "-l" is put (and
1112 is probably actually better for "-V", as it does fewer
1115 See the comment in "process_packet()" for an explanation of
1116 why we do that, and why we don't just use "setvbuf()" to
1117 make the standard output line-buffered (short version: in
1118 Windows, "line-buffered" is the same as "fully-buffered",
1119 and the output buffer is only flushed when it fills up). */
1120 line_buffered = TRUE;
1122 case 'o': /* Override preference from command line */
1123 switch (prefs_set_pref(optarg)) {
1128 case PREFS_SET_SYNTAX_ERR:
1129 cmdarg_err("Invalid -o flag \"%s\"", optarg);
1133 case PREFS_SET_NO_SUCH_PREF:
1134 case PREFS_SET_OBSOLETE:
1135 cmdarg_err("-o flag \"%s\" specifies unknown preference", optarg);
1140 case 'q': /* Quiet */
1143 case 'Q': /* Really quiet */
1145 really_quiet = TRUE;
1147 case 'r': /* Read capture file x */
1148 cf_name = g_strdup(optarg);
1150 case 'R': /* Read file filter */
1153 case 'S': /* Set the line Separator to be printed between packets */
1154 separator = strdup(optarg);
1156 case 't': /* Time stamp type */
1157 if (strcmp(optarg, "r") == 0)
1158 timestamp_set_type(TS_RELATIVE);
1159 else if (strcmp(optarg, "a") == 0)
1160 timestamp_set_type(TS_ABSOLUTE);
1161 else if (strcmp(optarg, "ad") == 0)
1162 timestamp_set_type(TS_ABSOLUTE_WITH_YMD);
1163 else if (strcmp(optarg, "adoy") == 0)
1164 timestamp_set_type(TS_ABSOLUTE_WITH_YDOY);
1165 else if (strcmp(optarg, "d") == 0)
1166 timestamp_set_type(TS_DELTA);
1167 else if (strcmp(optarg, "dd") == 0)
1168 timestamp_set_type(TS_DELTA_DIS);
1169 else if (strcmp(optarg, "e") == 0)
1170 timestamp_set_type(TS_EPOCH);
1171 else if (strcmp(optarg, "u") == 0)
1172 timestamp_set_type(TS_UTC);
1173 else if (strcmp(optarg, "ud") == 0)
1174 timestamp_set_type(TS_UTC_WITH_YMD);
1175 else if (strcmp(optarg, "udoy") == 0)
1176 timestamp_set_type(TS_UTC_WITH_YDOY);
1178 cmdarg_err("Invalid time stamp type \"%s\"; it must be one of:", optarg);
1179 cmdarg_err_cont("\t\"a\" for absolute\n"
1180 "\t\"ad\" for absolute with YYYY-MM-DD date\n"
1181 "\t\"adoy\" for absolute with YYYY/DOY date\n"
1182 "\t\"d\" for delta\n"
1183 "\t\"dd\" for delta displayed\n"
1184 "\t\"e\" for epoch\n"
1185 "\t\"r\" for relative\n"
1186 "\t\"u\" for absolute UTC\n"
1187 "\t\"ud\" for absolute UTC with YYYY-MM-DD date\n"
1188 "\t\"udoy\" for absolute UTC with YYYY/DOY date");
1192 case 'T': /* printing Type */
1193 if (strcmp(optarg, "text") == 0) {
1194 output_action = WRITE_TEXT;
1195 print_format = PR_FMT_TEXT;
1196 } else if (strcmp(optarg, "ps") == 0) {
1197 output_action = WRITE_TEXT;
1198 print_format = PR_FMT_PS;
1199 } else if (strcmp(optarg, "pdml") == 0) {
1200 output_action = WRITE_XML;
1201 print_details = TRUE; /* Need details */
1202 print_summary = FALSE; /* Don't allow summary */
1203 } else if (strcmp(optarg, "psml") == 0) {
1204 output_action = WRITE_XML;
1205 print_details = FALSE; /* Don't allow details */
1206 print_summary = TRUE; /* Need summary */
1207 } else if (strcmp(optarg, "fields") == 0) {
1208 output_action = WRITE_FIELDS;
1209 print_details = TRUE; /* Need full tree info */
1210 print_summary = FALSE; /* Don't allow summary */
1212 cmdarg_err("Invalid -T parameter \"%s\"; it must be one of:", optarg); /* x */
1213 cmdarg_err_cont("\t\"fields\" The values of fields specified with the -e option, in a form\n"
1214 "\t specified by the -E option.\n"
1215 "\t\"pdml\" Packet Details Markup Language, an XML-based format for the\n"
1216 "\t details of a decoded packet. This information is equivalent to\n"
1217 "\t the packet details printed with the -V flag.\n"
1218 "\t\"ps\" PostScript for a human-readable one-line summary of each of\n"
1219 "\t the packets, or a multi-line view of the details of each of\n"
1220 "\t the packets, depending on whether the -V flag was specified.\n"
1221 "\t\"psml\" Packet Summary Markup Language, an XML-based format for the\n"
1222 "\t summary information of a decoded packet. This information is\n"
1223 "\t equivalent to the information shown in the one-line summary\n"
1224 "\t printed by default.\n"
1225 "\t\"text\" Text of a human-readable one-line summary of each of the\n"
1226 "\t packets, or a multi-line view of the details of each of the\n"
1227 "\t packets, depending on whether the -V flag was specified.\n"
1228 "\t This is the default.");
1232 case 'u': /* Seconds type */
1233 if (strcmp(optarg, "s") == 0)
1234 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
1235 else if (strcmp(optarg, "hms") == 0)
1236 timestamp_set_seconds_type(TS_SECONDS_HOUR_MIN_SEC);
1238 cmdarg_err("Invalid seconds type \"%s\"; it must be one of:", optarg);
1239 cmdarg_err_cont("\t\"s\" for seconds\n"
1240 "\t\"hms\" for hours, minutes and seconds");
1244 case 'v': /* Show version and exit */
1246 show_version(comp_info_str, runtime_info_str);
1247 g_string_free(comp_info_str, TRUE);
1248 g_string_free(runtime_info_str, TRUE);
1249 /* We don't really have to cleanup here, but it's a convenient way to test
1250 * start-up and shut-down of the epan library without any UI-specific
1251 * cruft getting in the way. Makes the results of running
1252 * $ ./tools/valgrind-wireshark -n
1253 * much more useful. */
1257 case 'O': /* Only output these protocols */
1258 /* already processed; just ignore it now */
1260 case 'V': /* Verbose */
1261 /* already processed; just ignore it now */
1263 case 'x': /* Print packet data in hex (and ASCII) */
1264 /* already processed; just ignore it now */
1272 /* We won't call the init function for the stat this soon
1273 as it would disallow MATE's fields (which are registered
1274 by the preferences set callback) from being used as
1275 part of a tap filter. Instead, we just add the argument
1276 to a list of stat arguments. */
1277 if (!process_stat_cmd_arg(optarg)) {
1278 if (strcmp("help", optarg)==0) {
1279 fprintf(stderr, "tfshark: The available statistics for the \"-z\" option are:\n");
1280 list_stat_cmd_args();
1283 cmdarg_err("Invalid -z argument \"%s\"; it must be one of:", optarg);
1284 list_stat_cmd_args();
1289 case '?': /* Bad flag - print usage message */
1296 /* If we specified output fields, but not the output field type... */
1297 if (WRITE_FIELDS != output_action && 0 != output_fields_num_fields(output_fields)) {
1298 cmdarg_err("Output fields were specified with \"-e\", "
1299 "but \"-Tfields\" was not specified.");
1301 } else if (WRITE_FIELDS == output_action && 0 == output_fields_num_fields(output_fields)) {
1302 cmdarg_err("\"-Tfields\" was specified, but no fields were "
1303 "specified with \"-e\".");
1308 /* If no capture filter or display filter has been specified, and there are
1309 still command-line arguments, treat them as the tokens of a capture
1310 filter (if no "-r" flag was specified) or a display filter (if a "-r"
1311 flag was specified. */
1312 if (optind < argc) {
1313 if (cf_name != NULL) {
1314 if (dfilter != NULL) {
1315 cmdarg_err("Display filters were specified both with \"-d\" "
1316 "and with additional command-line arguments.");
1319 dfilter = get_args_as_string(argc, argv, optind);
1323 /* if "-q" wasn't specified, we should print packet information */
1325 print_packet_info = TRUE;
1333 if (output_action != WRITE_TEXT) {
1334 cmdarg_err("Raw packet hex data can only be printed as text or PostScript");
1339 if (output_only != NULL) {
1342 if (!print_details) {
1343 cmdarg_err("-O requires -V");
1347 output_only_tables = g_hash_table_new (g_str_hash, g_str_equal);
1348 for (ps = strtok (output_only, ","); ps; ps = strtok (NULL, ",")) {
1349 g_hash_table_insert(output_only_tables, (gpointer)ps, (gpointer)ps);
1353 if (rfilter != NULL && !perform_two_pass_analysis) {
1354 cmdarg_err("-R without -2 is deprecated. For single-pass filtering use -Y.");
1358 /* Notify all registered modules that have had any of their preferences
1359 changed either from one of the preferences file or from the command
1360 line that their preferences have changed. */
1363 /* At this point MATE will have registered its field array so we can
1364 have a tap filter with one of MATE's late-registered fields as part
1365 of the filter. We can now process all the "-z" arguments. */
1366 start_requested_stats();
1368 /* disabled protocols as per configuration file */
1369 if (gdp_path == NULL && dp_path == NULL) {
1370 set_disabled_protos_list();
1373 /* Build the column format array */
1374 build_column_format_array(&cfile.cinfo, prefs_p->num_cols, TRUE);
1376 if (rfilter != NULL) {
1377 if (!dfilter_compile(rfilter, &rfcode)) {
1378 cmdarg_err("%s", dfilter_error_msg);
1383 cfile.rfcode = rfcode;
1385 if (dfilter != NULL) {
1386 if (!dfilter_compile(dfilter, &dfcode)) {
1387 cmdarg_err("%s", dfilter_error_msg);
1392 cfile.dfcode = dfcode;
1394 if (print_packet_info) {
1395 /* If we're printing as text or PostScript, we have
1396 to create a print stream. */
1397 if (output_action == WRITE_TEXT) {
1398 switch (print_format) {
1401 print_stream = print_stream_text_stdio_new(stdout);
1405 print_stream = print_stream_ps_stdio_new(stdout);
1409 g_assert_not_reached();
1414 /* We have to dissect each packet if:
1416 we're printing information about each packet;
1418 we're using a read filter on the packets;
1420 we're using a display filter on the packets;
1422 we're using any taps that need dissection. */
1423 do_dissection = print_packet_info || rfcode || dfcode || tap_listeners_require_dissection();
1427 * We're reading a capture file.
1431 * Immediately relinquish any special privileges we have; we must not
1432 * be allowed to read any capture files the user running TShark
1435 relinquish_special_privs_perm();
1436 print_current_user();
1438 /* TODO: if tfshark is ever changed to give the user a choice of which
1439 open_routine reader to use, then the following needs to change. */
1440 if (cf_open(&cfile, cf_name, WTAP_TYPE_AUTO, FALSE, &err) != CF_OK) {
1445 /* Process the packets in the file */
1447 /* XXX - for now there is only 1 packet */
1448 err = load_cap_file(&cfile, 1, 0);
1450 CATCH(OutOfMemoryError) {
1454 "Sorry, but TFShark has to terminate now!\n"
1456 "Some infos / workarounds can be found at:\n"
1457 "http://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
1463 /* We still dump out the results of taps, etc., as we might have
1464 read some packets; however, we exit with an error status. */
1471 if (cfile.frames != NULL) {
1472 free_frame_data_sequence(cfile.frames);
1473 cfile.frames = NULL;
1476 draw_tap_listeners(TRUE);
1477 funnel_dump_all_text_windows();
1478 epan_free(cfile.epan);
1481 output_fields_free(output_fields);
1482 output_fields = NULL;
1487 static const nstime_t *
1488 tfshark_get_frame_ts(void *data, guint32 frame_num)
1490 capture_file *cf = (capture_file *) data;
1492 if (ref && ref->num == frame_num)
1493 return &ref->abs_ts;
1495 if (prev_dis && prev_dis->num == frame_num)
1496 return &prev_dis->abs_ts;
1498 if (prev_cap && prev_cap->num == frame_num)
1499 return &prev_cap->abs_ts;
1502 frame_data *fd = frame_data_sequence_find(cf->frames, frame_num);
1504 return (fd) ? &fd->abs_ts : NULL;
1511 no_interface_name(void *data _U_, guint32 interface_id _U_)
1517 tfshark_epan_new(capture_file *cf)
1519 epan_t *epan = epan_new();
1522 epan->get_frame_ts = tfshark_get_frame_ts;
1523 epan->get_interface_name = no_interface_name;
1524 epan->get_user_comment = NULL;
1530 process_packet_first_pass(capture_file *cf, epan_dissect_t *edt,
1531 gint64 offset, struct wtap_pkthdr *whdr,
1538 /* The frame number of this packet is one more than the count of
1539 frames in this packet. */
1540 framenum = cf->count + 1;
1542 /* If we're not running a display filter and we're not printing any
1543 packet information, we don't need to do a dissection. This means
1544 that all packets can be marked as 'passed'. */
1547 frame_data_init(&fdlocal, framenum, whdr, offset, cum_bytes);
1549 /* If we're going to print packet information, or we're going to
1550 run a read filter, or display filter, or we're going to process taps, set up to
1551 do a dissection and do so. */
1553 /* If we're running a read filter, prime the epan_dissect_t with that
1556 epan_dissect_prime_dfilter(edt, cf->rfcode);
1558 frame_data_set_before_dissect(&fdlocal, &cf->elapsed_time,
1560 if (ref == &fdlocal) {
1561 ref_frame = fdlocal;
1565 epan_dissect_file_run(edt, whdr, file_tvbuff_new(&fdlocal, pd), &fdlocal, NULL);
1567 /* Run the read filter if we have one. */
1569 passed = dfilter_apply_edt(cf->rfcode, edt);
1573 frame_data_set_after_dissect(&fdlocal, &cum_bytes);
1574 prev_cap = prev_dis = frame_data_sequence_add(cf->frames, &fdlocal);
1576 /* If we're not doing dissection then there won't be any dependent frames.
1577 * More importantly, edt.pi.dependent_frames won't be initialized because
1578 * epan hasn't been initialized.
1581 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->frames);
1586 /* if we don't add it to the frame_data_sequence, clean it up right now
1588 frame_data_destroy(&fdlocal);
1592 epan_dissect_reset(edt);
1598 process_packet_second_pass(capture_file *cf, epan_dissect_t *edt, frame_data *fdata,
1599 struct wtap_pkthdr *phdr, Buffer *buf,
1605 /* If we're not running a display filter and we're not printing any
1606 packet information, we don't need to do a dissection. This means
1607 that all packets can be marked as 'passed'. */
1610 /* If we're going to print packet information, or we're going to
1611 run a read filter, or we're going to process taps, set up to
1612 do a dissection and do so. */
1615 /* If we're running a display filter, prime the epan_dissect_t with that
1618 epan_dissect_prime_dfilter(edt, cf->dfcode);
1620 col_custom_prime_edt(edt, &cf->cinfo);
1622 /* We only need the columns if either
1623 1) some tap needs the columns
1625 2) we're printing packet info but we're *not* verbose; in verbose
1626 mode, we print the protocol tree, not the protocol summary.
1628 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary))
1633 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1640 epan_dissect_file_run_with_taps(edt, phdr, file_tvbuff_new_buffer(fdata, buf), fdata, cinfo);
1642 /* Run the read/display filter if we have one. */
1644 passed = dfilter_apply_edt(cf->dfcode, edt);
1648 frame_data_set_after_dissect(fdata, &cum_bytes);
1649 /* Process this packet. */
1650 if (print_packet_info) {
1651 /* We're printing packet information; print the information for
1653 print_packet(cf, edt);
1655 /* The ANSI C standard does not appear to *require* that a line-buffered
1656 stream be flushed to the host environment whenever a newline is
1657 written, it just says that, on such a stream, characters "are
1658 intended to be transmitted to or from the host environment as a
1659 block when a new-line character is encountered".
1661 The Visual C++ 6.0 C implementation doesn't do what is intended;
1662 even if you set a stream to be line-buffered, it still doesn't
1663 flush the buffer at the end of every line.
1665 So, if the "-l" flag was specified, we flush the standard output
1666 at the end of a packet. This will do the right thing if we're
1667 printing packet summary lines, and, as we print the entire protocol
1668 tree for a single packet without waiting for anything to happen,
1669 it should be as good as line-buffered mode if we're printing
1670 protocol trees. (The whole reason for the "-l" flag in either
1671 tcpdump or TShark is to allow the output of a live capture to
1672 be piped to a program or script and to have that script see the
1673 information for the packet as soon as it's printed, rather than
1674 having to wait until a standard I/O buffer fills up. */
1678 if (ferror(stdout)) {
1679 show_print_file_io_error(errno);
1688 epan_dissect_reset(edt);
1690 return passed || fdata->flags.dependent_of_displayed;
1694 local_wtap_read(capture_file *cf, struct wtap_pkthdr* file_phdr, int *err, gchar **err_info, gint64 *data_offset _U_, guint8** data_buffer)
1697 gint64 packet_size = wtap_file_size(cf->wth, err);
1699 *data_buffer = (guint8*)g_malloc((gsize)packet_size);
1700 bytes_read = file_read(*data_buffer, (unsigned int)packet_size, cf->wth->fh);
1702 if (bytes_read < 0) {
1703 *err = file_error(cf->wth->fh, err_info);
1705 *err = FTAP_ERR_SHORT_READ;
1707 } else if (bytes_read == 0) {
1708 /* Done with file, no error */
1713 /* XXX - SET FRAME SIZE EQUAL TO TOTAL FILE SIZE */
1714 file_phdr->caplen = (guint32)packet_size;
1715 file_phdr->len = (guint32)packet_size;
1719 * Set the packet encapsulation to the file's encapsulation
1720 * value; if that's not WTAP_ENCAP_PER_PACKET, it's the
1721 * right answer (and means that the read routine for this
1722 * capture file type doesn't have to set it), and if it
1723 * *is* WTAP_ENCAP_PER_PACKET, the caller needs to set it
1726 wth->phdr.pkt_encap = wth->file_encap;
1728 if (!wth->subtype_read(wth, err, err_info, data_offset)) {
1730 * If we didn't get an error indication, we read
1731 * the last packet. See if there's any deferred
1732 * error, as might, for example, occur if we're
1733 * reading a compressed file, and we got an error
1734 * reading compressed data from the file, but
1735 * got enough compressed data to decompress the
1736 * last packet of the file.
1739 *err = file_error(wth->fh, err_info);
1740 return FALSE; /* failure */
1744 * It makes no sense for the captured data length to be bigger
1745 * than the actual data length.
1747 if (wth->phdr.caplen > wth->phdr.len)
1748 wth->phdr.caplen = wth->phdr.len;
1751 * Make sure that it's not WTAP_ENCAP_PER_PACKET, as that
1752 * probably means the file has that encapsulation type
1753 * but the read routine didn't set this packet's
1754 * encapsulation type.
1756 g_assert(wth->phdr.pkt_encap != WTAP_ENCAP_PER_PACKET);
1759 return TRUE; /* success */
1763 load_cap_file(capture_file *cf, int max_packet_count, gint64 max_byte_count)
1767 gchar *err_info = NULL;
1768 gint64 data_offset = 0;
1769 gboolean filtering_tap_listeners;
1772 epan_dissect_t *edt = NULL;
1773 struct wtap_pkthdr file_phdr;
1776 if (print_packet_info) {
1777 if (!write_preamble(cf)) {
1779 show_print_file_io_error(err);
1784 /* Do we have any tap listeners with filters? */
1785 filtering_tap_listeners = have_filtering_tap_listeners();
1787 /* Get the union of the flags for all tap listeners. */
1788 tap_flags = union_of_tap_listener_flags();
1790 memset(&file_phdr, 0, sizeof(file_phdr));
1792 /* XXX - TEMPORARY HACK TO ELF DISSECTOR */
1793 file_phdr.pkt_encap = 1234;
1795 if (perform_two_pass_analysis) {
1798 /* Allocate a frame_data_sequence for all the frames. */
1799 cf->frames = new_frame_data_sequence();
1801 if (do_dissection) {
1802 gboolean create_proto_tree = FALSE;
1804 /* If we're going to be applying a filter, we'll need to
1805 create a protocol tree against which to apply the filter. */
1807 create_proto_tree = TRUE;
1809 /* We're not going to display the protocol tree on this pass,
1810 so it's not going to be "visible". */
1811 edt = epan_dissect_new(cf->epan, create_proto_tree, FALSE);
1813 while (local_wtap_read(cf, &file_phdr, &err, &err_info, &data_offset, &raw_data)) {
1814 if (process_packet_first_pass(cf, edt, data_offset, &file_phdr/*wtap_phdr(cf->wth)*/,
1815 wtap_buf_ptr(cf->wth))) {
1817 /* Stop reading if we have the maximum number of packets;
1818 * When the -c option has not been used, max_packet_count
1819 * starts at 0, which practically means, never stop reading.
1820 * (unless we roll over max_packet_count ?)
1822 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
1823 err = 0; /* This is not an error */
1830 epan_dissect_free(edt);
1835 /* Close the sequential I/O side, to free up memory it requires. */
1836 wtap_sequential_close(cf->wth);
1839 /* Allow the protocol dissectors to free up memory that they
1840 * don't need after the sequential run-through of the packets. */
1841 postseq_cleanup_all_protocols();
1845 buffer_init(&buf, 1500);
1847 if (do_dissection) {
1848 gboolean create_proto_tree;
1850 if (cf->dfcode || print_details || filtering_tap_listeners ||
1851 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo))
1852 create_proto_tree = TRUE;
1854 create_proto_tree = FALSE;
1856 /* The protocol tree will be "visible", i.e., printed, only if we're
1857 printing packet details, which is true if we're printing stuff
1858 ("print_packet_info" is true) and we're in verbose mode
1859 ("packet_details" is true). */
1860 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
1863 for (framenum = 1; err == 0 && framenum <= cf->count; framenum++) {
1864 fdata = frame_data_sequence_find(cf->frames, framenum);
1866 if (wtap_seek_read(cf->wth, fdata->file_off,
1867 &buf, fdata->cap_len, &err, &err_info)) {
1868 process_packet_second_pass(cf, edt, fdata, &cf->phdr, &buf, tap_flags);
1871 process_packet_second_pass(cf, edt, fdata, &cf->phdr, &buf, tap_flags);
1876 epan_dissect_free(edt);
1885 if (do_dissection) {
1886 gboolean create_proto_tree;
1888 if (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
1889 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo))
1890 create_proto_tree = TRUE;
1892 create_proto_tree = FALSE;
1894 /* The protocol tree will be "visible", i.e., printed, only if we're
1895 printing packet details, which is true if we're printing stuff
1896 ("print_packet_info" is true) and we're in verbose mode
1897 ("packet_details" is true). */
1898 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
1901 while (local_wtap_read(cf, &file_phdr, &err, &err_info, &data_offset, &raw_data)) {
1905 process_packet(cf, edt, data_offset, &file_phdr/*wtap_phdr(cf->wth)*/,
1906 raw_data, tap_flags);
1908 /* Stop reading if we have the maximum number of packets;
1909 * When the -c option has not been used, max_packet_count
1910 * starts at 0, which practically means, never stop reading.
1911 * (unless we roll over max_packet_count ?)
1913 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
1914 err = 0; /* This is not an error */
1920 epan_dissect_free(edt);
1927 * Print a message noting that the read failed somewhere along the line.
1929 * If we're printing packet data, and the standard output and error are
1930 * going to the same place, flush the standard output, so everything
1931 * buffered up is written, and then print a newline to the standard error
1932 * before printing the error message, to separate it from the packet
1933 * data. (Alas, that only works on UN*X; st_dev is meaningless, and
1934 * the _fstat() documentation at Microsoft doesn't indicate whether
1935 * st_ino is even supported.)
1938 if (print_packet_info) {
1939 struct stat stat_stdout, stat_stderr;
1941 if (fstat(1, &stat_stdout) == 0 && fstat(2, &stat_stderr) == 0) {
1942 if (stat_stdout.st_dev == stat_stderr.st_dev &&
1943 stat_stdout.st_ino == stat_stderr.st_ino) {
1945 fprintf(stderr, "\n");
1952 case FTAP_ERR_UNSUPPORTED:
1953 cmdarg_err("The file \"%s\" contains record data that TFShark doesn't support.\n(%s)",
1954 cf->filename, err_info);
1958 case FTAP_ERR_UNSUPPORTED_ENCAP:
1959 cmdarg_err("The file \"%s\" has a packet with a network type that TFShark doesn't support.\n(%s)",
1960 cf->filename, err_info);
1964 case FTAP_ERR_CANT_READ:
1965 cmdarg_err("An attempt to read from the file \"%s\" failed for some unknown reason.",
1969 case FTAP_ERR_SHORT_READ:
1970 cmdarg_err("The file \"%s\" appears to have been cut short in the middle of a packet.",
1974 case FTAP_ERR_BAD_FILE:
1975 cmdarg_err("The file \"%s\" appears to be damaged or corrupt.\n(%s)",
1976 cf->filename, err_info);
1980 case FTAP_ERR_DECOMPRESS:
1981 cmdarg_err("The compressed file \"%s\" appears to be damaged or corrupt.\n"
1982 "(%s)", cf->filename, err_info);
1986 cmdarg_err("An error occurred while reading the file \"%s\": %s.",
1987 cf->filename, ftap_strerror(err));
1991 if (print_packet_info) {
1992 if (!write_finale()) {
1994 show_print_file_io_error(err);
2000 wtap_close(cf->wth);
2007 process_packet(capture_file *cf, epan_dissect_t *edt, gint64 offset,
2008 struct wtap_pkthdr *whdr, const guchar *pd, guint tap_flags)
2014 /* Count this packet. */
2017 /* If we're not running a display filter and we're not printing any
2018 packet information, we don't need to do a dissection. This means
2019 that all packets can be marked as 'passed'. */
2022 frame_data_init(&fdata, cf->count, whdr, offset, cum_bytes);
2024 /* If we're going to print packet information, or we're going to
2025 run a read filter, or we're going to process taps, set up to
2026 do a dissection and do so. */
2028 /* If we're running a filter, prime the epan_dissect_t with that
2031 epan_dissect_prime_dfilter(edt, cf->dfcode);
2033 col_custom_prime_edt(edt, &cf->cinfo);
2035 /* We only need the columns if either
2036 1) some tap needs the columns
2038 2) we're printing packet info but we're *not* verbose; in verbose
2039 mode, we print the protocol tree, not the protocol summary.
2041 3) there is a column mapped as an individual field */
2042 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
2047 frame_data_set_before_dissect(&fdata, &cf->elapsed_time,
2049 if (ref == &fdata) {
2054 epan_dissect_file_run_with_taps(edt, whdr, frame_tvbuff_new(&fdata, pd), &fdata, cinfo);
2056 /* Run the filter if we have it. */
2058 passed = dfilter_apply_edt(cf->dfcode, edt);
2062 frame_data_set_after_dissect(&fdata, &cum_bytes);
2064 /* Process this packet. */
2065 if (print_packet_info) {
2066 /* We're printing packet information; print the information for
2068 print_packet(cf, edt);
2070 /* The ANSI C standard does not appear to *require* that a line-buffered
2071 stream be flushed to the host environment whenever a newline is
2072 written, it just says that, on such a stream, characters "are
2073 intended to be transmitted to or from the host environment as a
2074 block when a new-line character is encountered".
2076 The Visual C++ 6.0 C implementation doesn't do what is intended;
2077 even if you set a stream to be line-buffered, it still doesn't
2078 flush the buffer at the end of every line.
2080 So, if the "-l" flag was specified, we flush the standard output
2081 at the end of a packet. This will do the right thing if we're
2082 printing packet summary lines, and, as we print the entire protocol
2083 tree for a single packet without waiting for anything to happen,
2084 it should be as good as line-buffered mode if we're printing
2085 protocol trees. (The whole reason for the "-l" flag in either
2086 tcpdump or TShark is to allow the output of a live capture to
2087 be piped to a program or script and to have that script see the
2088 information for the packet as soon as it's printed, rather than
2089 having to wait until a standard I/O buffer fills up. */
2093 if (ferror(stdout)) {
2094 show_print_file_io_error(errno);
2099 /* this must be set after print_packet() [bug #8160] */
2100 prev_dis_frame = fdata;
2101 prev_dis = &prev_dis_frame;
2104 prev_cap_frame = fdata;
2105 prev_cap = &prev_cap_frame;
2108 epan_dissect_reset(edt);
2109 frame_data_destroy(&fdata);
2115 write_preamble(capture_file *cf)
2117 switch (output_action) {
2120 return print_preamble(print_stream, cf ? cf->filename : NULL, get_ws_vcs_version_info());
2124 write_pdml_preamble(stdout, cf ? cf->filename : NULL);
2126 write_psml_preamble(stdout);
2127 return !ferror(stdout);
2130 write_fields_preamble(output_fields, stdout);
2131 return !ferror(stdout);
2134 g_assert_not_reached();
2140 get_line_buf(size_t len)
2142 static char *line_bufp = NULL;
2143 static size_t line_buf_len = 256;
2144 size_t new_line_buf_len;
2146 for (new_line_buf_len = line_buf_len; len > new_line_buf_len;
2147 new_line_buf_len *= 2)
2149 if (line_bufp == NULL) {
2150 line_buf_len = new_line_buf_len;
2151 line_bufp = (char *)g_malloc(line_buf_len + 1);
2153 if (new_line_buf_len > line_buf_len) {
2154 line_buf_len = new_line_buf_len;
2155 line_bufp = (char *)g_realloc(line_bufp, line_buf_len + 1);
2162 put_string(char *dest, const char *str, size_t str_len)
2164 memcpy(dest, str, str_len);
2165 dest[str_len] = '\0';
2169 put_spaces_string(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
2173 for (i = str_len; i < str_with_spaces; i++)
2176 put_string(dest, str, str_len);
2180 put_string_spaces(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
2184 memcpy(dest, str, str_len);
2185 for (i = str_len; i < str_with_spaces; i++)
2188 dest[str_with_spaces] = '\0';
2192 print_columns(capture_file *cf)
2200 line_bufp = get_line_buf(256);
2203 for (i = 0; i < cf->cinfo.num_cols; i++) {
2204 /* Skip columns not marked as visible. */
2205 if (!get_column_visible(i))
2207 switch (cf->cinfo.col_fmt[i]) {
2209 column_len = col_len = strlen(cf->cinfo.col_data[i]);
2212 line_bufp = get_line_buf(buf_offset + column_len);
2213 put_spaces_string(line_bufp + buf_offset, cf->cinfo.col_data[i], col_len, column_len);
2219 case COL_ABS_YMD_TIME: /* XXX - wider */
2220 case COL_ABS_YDOY_TIME: /* XXX - wider */
2222 case COL_UTC_YMD_TIME: /* XXX - wider */
2223 case COL_UTC_YDOY_TIME: /* XXX - wider */
2224 column_len = col_len = strlen(cf->cinfo.col_data[i]);
2225 if (column_len < 10)
2227 line_bufp = get_line_buf(buf_offset + column_len);
2228 put_spaces_string(line_bufp + buf_offset, cf->cinfo.col_data[i], col_len, column_len);
2234 case COL_DEF_DL_SRC:
2235 case COL_RES_DL_SRC:
2236 case COL_UNRES_DL_SRC:
2237 case COL_DEF_NET_SRC:
2238 case COL_RES_NET_SRC:
2239 case COL_UNRES_NET_SRC:
2240 column_len = col_len = strlen(cf->cinfo.col_data[i]);
2241 if (column_len < 12)
2243 line_bufp = get_line_buf(buf_offset + column_len);
2244 put_spaces_string(line_bufp + buf_offset, cf->cinfo.col_data[i], col_len, column_len);
2250 case COL_DEF_DL_DST:
2251 case COL_RES_DL_DST:
2252 case COL_UNRES_DL_DST:
2253 case COL_DEF_NET_DST:
2254 case COL_RES_NET_DST:
2255 case COL_UNRES_NET_DST:
2256 column_len = col_len = strlen(cf->cinfo.col_data[i]);
2257 if (column_len < 12)
2259 line_bufp = get_line_buf(buf_offset + column_len);
2260 put_string_spaces(line_bufp + buf_offset, cf->cinfo.col_data[i], col_len, column_len);
2264 column_len = strlen(cf->cinfo.col_data[i]);
2265 line_bufp = get_line_buf(buf_offset + column_len);
2266 put_string(line_bufp + buf_offset, cf->cinfo.col_data[i], column_len);
2269 buf_offset += column_len;
2270 if (i != cf->cinfo.num_cols - 1) {
2272 * This isn't the last column, so we need to print a
2273 * separator between this column and the next.
2275 * If we printed a network source and are printing a
2276 * network destination of the same type next, separate
2277 * them with " -> "; if we printed a network destination
2278 * and are printing a network source of the same type
2279 * next, separate them with " <- "; otherwise separate them
2282 * We add enough space to the buffer for " <- " or " -> ",
2283 * even if we're only adding " ".
2285 line_bufp = get_line_buf(buf_offset + 4);
2286 switch (cf->cinfo.col_fmt[i]) {
2291 switch (cf->cinfo.col_fmt[i + 1]) {
2296 put_string(line_bufp + buf_offset, " -> ", 4);
2301 put_string(line_bufp + buf_offset, " ", 1);
2307 case COL_DEF_DL_SRC:
2308 case COL_RES_DL_SRC:
2309 case COL_UNRES_DL_SRC:
2310 switch (cf->cinfo.col_fmt[i + 1]) {
2312 case COL_DEF_DL_DST:
2313 case COL_RES_DL_DST:
2314 case COL_UNRES_DL_DST:
2315 put_string(line_bufp + buf_offset, " -> ", 4);
2320 put_string(line_bufp + buf_offset, " ", 1);
2326 case COL_DEF_NET_SRC:
2327 case COL_RES_NET_SRC:
2328 case COL_UNRES_NET_SRC:
2329 switch (cf->cinfo.col_fmt[i + 1]) {
2331 case COL_DEF_NET_DST:
2332 case COL_RES_NET_DST:
2333 case COL_UNRES_NET_DST:
2334 put_string(line_bufp + buf_offset, " -> ", 4);
2339 put_string(line_bufp + buf_offset, " ", 1);
2348 switch (cf->cinfo.col_fmt[i + 1]) {
2353 put_string(line_bufp + buf_offset, " <- ", 4);
2358 put_string(line_bufp + buf_offset, " ", 1);
2364 case COL_DEF_DL_DST:
2365 case COL_RES_DL_DST:
2366 case COL_UNRES_DL_DST:
2367 switch (cf->cinfo.col_fmt[i + 1]) {
2369 case COL_DEF_DL_SRC:
2370 case COL_RES_DL_SRC:
2371 case COL_UNRES_DL_SRC:
2372 put_string(line_bufp + buf_offset, " <- ", 4);
2377 put_string(line_bufp + buf_offset, " ", 1);
2383 case COL_DEF_NET_DST:
2384 case COL_RES_NET_DST:
2385 case COL_UNRES_NET_DST:
2386 switch (cf->cinfo.col_fmt[i + 1]) {
2388 case COL_DEF_NET_SRC:
2389 case COL_RES_NET_SRC:
2390 case COL_UNRES_NET_SRC:
2391 put_string(line_bufp + buf_offset, " <- ", 4);
2396 put_string(line_bufp + buf_offset, " ", 1);
2403 put_string(line_bufp + buf_offset, " ", 1);
2409 return print_line(print_stream, 0, line_bufp);
2413 print_packet(capture_file *cf, epan_dissect_t *edt)
2415 print_args_t print_args;
2417 if (print_summary || output_fields_has_cols(output_fields)) {
2418 /* Just fill in the columns. */
2419 epan_dissect_fill_in_columns(edt, FALSE, TRUE);
2421 if (print_summary) {
2422 /* Now print them. */
2423 switch (output_action) {
2426 if (!print_columns(cf))
2431 proto_tree_write_psml(edt, stdout);
2432 return !ferror(stdout);
2433 case WRITE_FIELDS: /*No non-verbose "fields" format */
2434 g_assert_not_reached();
2439 if (print_details) {
2440 /* Print the information in the protocol tree. */
2441 switch (output_action) {
2444 /* Only initialize the fields that are actually used in proto_tree_print.
2445 * This is particularly important for .range, as that's heap memory which
2446 * we would otherwise have to g_free().
2447 print_args.to_file = TRUE;
2448 print_args.format = print_format;
2449 print_args.print_summary = print_summary;
2450 print_args.print_formfeed = FALSE;
2451 packet_range_init(&print_args.range, &cfile);
2453 print_args.print_hex = print_hex;
2454 print_args.print_dissections = print_details ? print_dissections_expanded : print_dissections_none;
2456 if (!proto_tree_print(&print_args, edt, print_stream))
2459 if (!print_line(print_stream, 0, separator))
2465 proto_tree_write_pdml(edt, stdout);
2467 return !ferror(stdout);
2469 proto_tree_write_fields(output_fields, edt, &cf->cinfo, stdout);
2471 return !ferror(stdout);
2475 if (print_summary || print_details) {
2476 if (!print_line(print_stream, 0, ""))
2479 if (!print_hex_data(print_stream, edt))
2481 if (!print_line(print_stream, 0, separator))
2490 switch (output_action) {
2493 return print_finale(print_stream);
2497 write_pdml_finale(stdout);
2499 write_psml_finale(stdout);
2500 return !ferror(stdout);
2503 write_fields_finale(output_fields, stdout);
2504 return !ferror(stdout);
2507 g_assert_not_reached();
2513 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
2521 char err_msg[2048+1];
2524 fth = ftap_open_offline(fname, err, &err_info, perform_two_pass_analysis);
2528 wth = wtap_open_offline(fname, type, err, &err_info, perform_two_pass_analysis);
2533 /* The open succeeded. Fill in the information for this file. */
2535 /* Create new epan session for dissection. */
2536 epan_free(cf->epan);
2537 cf->epan = tfshark_epan_new(cf);
2540 cf->wth = (struct wtap*)fth; /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2544 cf->f_datalen = 0; /* not used, but set it anyway */
2546 /* Set the file name because we need it to set the follow stream filter.
2547 XXX - is that still true? We need it for other reasons, though,
2549 cf->filename = g_strdup(fname);
2551 /* Indicate whether it's a permanent or temporary file. */
2552 cf->is_tempfile = is_tempfile;
2554 /* No user changes yet. */
2555 cf->unsaved_changes = FALSE;
2557 cf->cd_t = ftap_file_type_subtype((struct ftap*)cf->wth); /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2558 cf->open_type = type;
2560 cf->drops_known = FALSE;
2562 cf->snap = ftap_snapshot_length((struct ftap*)cf->wth); /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2563 if (cf->snap == 0) {
2564 /* Snapshot length not known. */
2565 cf->has_snap = FALSE;
2566 cf->snap = FTAP_MAX_RECORD_SIZE;
2568 cf->has_snap = TRUE;
2569 nstime_set_zero(&cf->elapsed_time);
2574 cf->state = FILE_READ_IN_PROGRESS;
2579 g_snprintf(err_msg, sizeof err_msg,
2580 cf_open_error_message(*err, err_info, FALSE, cf->cd_t), fname);
2581 cmdarg_err("%s", err_msg);
2586 show_print_file_io_error(int err)
2591 cmdarg_err("Not all the packets could be printed because there is "
2592 "no space left on the file system.");
2597 cmdarg_err("Not all the packets could be printed because you are "
2598 "too close to, or over your disk quota.");
2603 cmdarg_err("An error occurred while printing packets: %s.",
2610 cf_open_error_message(int err, gchar *err_info, gboolean for_writing,
2614 static char errmsg_errno[1024+1];
2617 /* Wiretap error. */
2620 case FTAP_ERR_NOT_REGULAR_FILE:
2621 errmsg = "The file \"%s\" is a \"special file\" or socket or other non-regular file.";
2624 case FTAP_ERR_RANDOM_OPEN_PIPE:
2625 /* Seen only when opening a capture file for reading. */
2626 errmsg = "The file \"%s\" is a pipe or FIFO; TFShark can't read pipe or FIFO files in two-pass mode.";
2629 case FTAP_ERR_FILE_UNKNOWN_FORMAT:
2630 /* Seen only when opening a capture file for reading. */
2631 errmsg = "The file \"%s\" isn't a capture file in a format TFShark understands.";
2634 case FTAP_ERR_UNSUPPORTED:
2635 /* Seen only when opening a capture file for reading. */
2636 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2637 "The file \"%%s\" isn't a capture file in a format TFShark understands.\n"
2640 errmsg = errmsg_errno;
2643 case FTAP_ERR_CANT_WRITE_TO_PIPE:
2644 /* Seen only when opening a capture file for writing. */
2645 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2646 "The file \"%%s\" is a pipe, and \"%s\" capture files can't be "
2647 "written to a pipe.", ftap_file_type_subtype_short_string(file_type));
2648 errmsg = errmsg_errno;
2651 case FTAP_ERR_UNSUPPORTED_FILE_TYPE:
2652 /* Seen only when opening a capture file for writing. */
2653 errmsg = "TFShark doesn't support writing capture files in that format.";
2656 case FTAP_ERR_UNSUPPORTED_ENCAP:
2658 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2659 "TFShark can't save this capture as a \"%s\" file.",
2660 ftap_file_type_subtype_short_string(file_type));
2662 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2663 "The file \"%%s\" is a capture for a network type that TFShark doesn't support.\n"
2667 errmsg = errmsg_errno;
2670 case FTAP_ERR_ENCAP_PER_RECORD_UNSUPPORTED:
2672 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2673 "TFShark can't save this capture as a \"%s\" file.",
2674 ftap_file_type_subtype_short_string(file_type));
2675 errmsg = errmsg_errno;
2677 errmsg = "The file \"%s\" is a capture for a network type that TFShark doesn't support.";
2680 case FTAP_ERR_BAD_FILE:
2681 /* Seen only when opening a capture file for reading. */
2682 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2683 "The file \"%%s\" appears to be damaged or corrupt.\n"
2686 errmsg = errmsg_errno;
2689 case FTAP_ERR_CANT_OPEN:
2691 errmsg = "The file \"%s\" could not be created for some unknown reason.";
2693 errmsg = "The file \"%s\" could not be opened for some unknown reason.";
2696 case FTAP_ERR_SHORT_READ:
2697 errmsg = "The file \"%s\" appears to have been cut short"
2698 " in the middle of a packet or other data.";
2701 case FTAP_ERR_SHORT_WRITE:
2702 errmsg = "A full header couldn't be written to the file \"%s\".";
2705 case FTAP_ERR_COMPRESSION_NOT_SUPPORTED:
2706 errmsg = "This file type cannot be written as a compressed file.";
2709 case FTAP_ERR_DECOMPRESS:
2710 /* Seen only when opening a capture file for reading. */
2711 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2712 "The compressed file \"%%s\" appears to be damaged or corrupt.\n"
2715 errmsg = errmsg_errno;
2719 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2720 "The file \"%%s\" could not be %s: %s.",
2721 for_writing ? "created" : "opened",
2722 ftap_strerror(err));
2723 errmsg = errmsg_errno;
2727 errmsg = file_open_error_message(err, for_writing);
2732 * Open/create errors are reported with an console message in TFShark.
2735 open_failure_message(const char *filename, int err, gboolean for_writing)
2737 fprintf(stderr, "tfshark: ");
2738 fprintf(stderr, file_open_error_message(err, for_writing), filename);
2739 fprintf(stderr, "\n");
2744 * General errors are reported with an console message in TFShark.
2747 failure_message(const char *msg_format, va_list ap)
2749 fprintf(stderr, "tfshark: ");
2750 vfprintf(stderr, msg_format, ap);
2751 fprintf(stderr, "\n");
2755 * Read errors are reported with an console message in TFShark.
2758 read_failure_message(const char *filename, int err)
2760 cmdarg_err("An error occurred while reading from the file \"%s\": %s.",
2761 filename, g_strerror(err));
2765 * Write errors are reported with an console message in TFShark.
2768 write_failure_message(const char *filename, int err)
2770 cmdarg_err("An error occurred while writing to the file \"%s\": %s.",
2771 filename, g_strerror(err));
2775 * Report additional information for an error in command-line arguments.
2778 failure_message_cont(const char *msg_format, va_list ap)
2780 vfprintf(stderr, msg_format, ap);
2781 fprintf(stderr, "\n");
2785 * Editor modelines - http://www.wireshark.org/tools/modelines.html
2790 * indent-tabs-mode: nil
2793 * vi: set shiftwidth=2 tabstop=8 expandtab:
2794 * :indentSize=2:tabSize=8:noTabs=true: