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>
62 #include <wsutil/crash_info.h>
63 #include <wsutil/privileges.h>
64 #include <wsutil/file_util.h>
65 #include <wsutil/filesystem.h>
66 #include <wsutil/report_err.h>
69 #include <epan/timestamp.h>
70 #include <epan/packet.h>
72 #include <epan/wslua/init_wslua.h>
75 #include "frame_tvbuff.h"
76 #include <epan/disabled_protos.h>
77 #include <epan/prefs.h>
78 #include <epan/column.h>
79 #include <epan/print.h>
80 #include <epan/addr_resolv.h>
82 #include "clopts_common.h"
83 #include "cmdarg_err.h"
84 #include "version_info.h"
86 #include <epan/epan_dissect.h>
88 #include <epan/stat_cmd_args.h>
89 #include <epan/timestamp.h>
90 #include <epan/ex-opt.h>
91 #include <filetap/ftap.h>
92 #include <wiretap/wtap-int.h>
93 #include <wiretap/file_wrappers.h>
96 #include <wsutil/unicode-utils.h>
100 #include <epan/funnel.h>
103 #include <wsutil/plugins.h>
107 * This is the template for the decode as option; it is shared between the
108 * various functions that output the usage for this parameter.
110 static const gchar decode_as_arg_template[] = "<layer_type>==<selector>,<decode_as_protocol>";
112 static guint32 cum_bytes;
113 static const frame_data *ref;
114 static frame_data ref_frame;
115 static frame_data *prev_dis;
116 static frame_data prev_dis_frame;
117 static frame_data *prev_cap;
118 static frame_data prev_cap_frame;
120 static const char* prev_display_dissector_name = NULL;
122 static gboolean perform_two_pass_analysis;
125 * The way the packet decode is to be written.
128 WRITE_TEXT, /* summary or detail text */
129 WRITE_XML, /* PDML or PSML */
130 WRITE_FIELDS /* User defined list of fields */
131 /* Add CSV and the like here */
134 static output_action_e output_action;
135 static gboolean do_dissection; /* TRUE if we have to dissect each packet */
136 static gboolean print_packet_info; /* TRUE if we're to print packet information */
137 static gint print_summary = -1; /* TRUE if we're to print packet summary information */
138 static gboolean print_details; /* TRUE if we're to print packet details information */
139 static gboolean print_hex; /* TRUE if we're to print hex/ascci information */
140 static gboolean line_buffered;
141 static gboolean really_quiet = FALSE;
143 static print_format_e print_format = PR_FMT_TEXT;
144 static print_stream_t *print_stream;
146 static output_fields_t* output_fields = NULL;
148 /* The line separator used between packets, changeable via the -S option */
149 static const char *separator = "";
151 static int load_cap_file(capture_file *, int, gint64);
152 static gboolean process_packet(capture_file *cf, epan_dissect_t *edt, gint64 offset,
153 struct wtap_pkthdr *whdr, const guchar *pd, guint tap_flags);
154 static void show_print_file_io_error(int err);
155 static gboolean write_preamble(capture_file *cf);
156 static gboolean print_packet(capture_file *cf, epan_dissect_t *edt);
157 static gboolean write_finale(void);
158 static const char *cf_open_error_message(int err, gchar *err_info,
159 gboolean for_writing, int file_type);
161 static void open_failure_message(const char *filename, int err,
162 gboolean for_writing);
163 static void failure_message(const char *msg_format, va_list ap);
164 static void read_failure_message(const char *filename, int err);
165 static void write_failure_message(const char *filename, int err);
171 const char *sstr; /* The short string */
172 const char *lstr; /* The long string */
176 string_compare(gconstpointer a, gconstpointer b)
178 return strcmp(((const struct string_elem *)a)->sstr,
179 ((const struct string_elem *)b)->sstr);
183 string_elem_print(gpointer data, gpointer not_used _U_)
185 fprintf(stderr, " %s - %s\n",
186 ((struct string_elem *)data)->sstr,
187 ((struct string_elem *)data)->lstr);
192 print_usage(gboolean print_ver)
199 "TFShark " VERSION "%s\n"
200 "Dump and analyze network traffic.\n"
201 "See http://www.wireshark.org for more information.\n"
204 wireshark_gitversion, get_copyright_info());
208 fprintf(output, "\n");
209 fprintf(output, "Usage: tfshark [options] ...\n");
210 fprintf(output, "\n");
212 /*fprintf(output, "\n");*/
213 fprintf(output, "Input file:\n");
214 fprintf(output, " -r <infile> set the filename to read from (no pipes or stdin!)\n");
216 fprintf(output, "\n");
217 fprintf(output, "Processing:\n");
218 fprintf(output, " -2 perform a two-pass analysis\n");
219 fprintf(output, " -R <read filter> packet Read filter in Wireshark display filter syntax\n");
220 fprintf(output, " -Y <display filter> packet displaY filter in Wireshark display filter\n");
221 fprintf(output, " syntax\n");
222 fprintf(output, " -d %s ...\n", decode_as_arg_template);
223 fprintf(output, " \"Decode As\", see the man page for details\n");
224 fprintf(output, " Example: tcp.port==8888,http\n");
226 /*fprintf(output, "\n");*/
227 fprintf(output, "Output:\n");
228 fprintf(output, " -C <config profile> start with specified configuration profile\n");
229 fprintf(output, " -V add output of packet tree (Packet Details)\n");
230 fprintf(output, " -O <protocols> Only show packet details of these protocols, comma\n");
231 fprintf(output, " separated\n");
232 fprintf(output, " -S <separator> the line separator to print between packets\n");
233 fprintf(output, " -x add output of hex and ASCII dump (Packet Bytes)\n");
234 fprintf(output, " -T pdml|ps|psml|text|fields\n");
235 fprintf(output, " format of text output (def: text)\n");
236 fprintf(output, " -e <field> field to print if -Tfields selected (e.g. tcp.port,\n");
237 fprintf(output, " _ws.col.Info)\n");
238 fprintf(output, " this option can be repeated to print multiple fields\n");
239 fprintf(output, " -E<fieldsoption>=<value> set options for output when -Tfields selected:\n");
240 fprintf(output, " header=y|n switch headers on and off\n");
241 fprintf(output, " separator=/t|/s|<char> select tab, space, printable character as separator\n");
242 fprintf(output, " occurrence=f|l|a print first, last or all occurrences of each field\n");
243 fprintf(output, " aggregator=,|/s|<char> select comma, space, printable character as\n");
244 fprintf(output, " aggregator\n");
245 fprintf(output, " quote=d|s|n select double, single, no quotes for values\n");
246 fprintf(output, " -t a|ad|d|dd|e|r|u|ud output format of time stamps (def: r: rel. to first)\n");
247 fprintf(output, " -u s|hms output format of seconds (def: s: seconds)\n");
248 fprintf(output, " -l flush standard output after each packet\n");
249 fprintf(output, " -q be more quiet on stdout (e.g. when using statistics)\n");
250 fprintf(output, " -Q only log true errors to stderr (quieter than -q)\n");
251 fprintf(output, " -X <key>:<value> eXtension options, see the man page for details\n");
252 fprintf(output, " -z <statistics> various statistics, see the man page for details\n");
254 fprintf(output, "\n");
255 fprintf(output, "Miscellaneous:\n");
256 fprintf(output, " -h display this help and exit\n");
257 fprintf(output, " -v display version info and exit\n");
258 fprintf(output, " -o <name>:<value> ... override preference setting\n");
259 fprintf(output, " -K <keytab> keytab file to use for kerberos decryption\n");
260 fprintf(output, " -G [report] dump one of several available reports and exit\n");
261 fprintf(output, " default report=\"fields\"\n");
262 fprintf(output, " use \"-G ?\" for more help\n");
266 glossary_option_help(void)
272 fprintf(output, "TFShark " VERSION "%s\n", wireshark_gitversion);
274 fprintf(output, "\n");
275 fprintf(output, "Usage: tfshark -G [report]\n");
276 fprintf(output, "\n");
277 fprintf(output, "Glossary table reports:\n");
278 fprintf(output, " -G column-formats dump column format codes and exit\n");
279 fprintf(output, " -G decodes dump \"layer type\"/\"decode as\" associations and exit\n");
280 fprintf(output, " -G fields dump fields glossary and exit\n");
281 fprintf(output, " -G ftypes dump field type basic and descriptive names\n");
282 fprintf(output, " -G heuristic-decodes dump heuristic dissector tables\n");
283 fprintf(output, " -G plugins dump installed plugins and exit\n");
284 fprintf(output, " -G protocols dump protocols in registration database and exit\n");
285 fprintf(output, " -G values dump value, range, true/false strings and exit\n");
286 fprintf(output, "\n");
287 fprintf(output, "Preference reports:\n");
288 fprintf(output, " -G currentprefs dump current preferences and exit\n");
289 fprintf(output, " -G defaultprefs dump default preferences and exit\n");
290 fprintf(output, "\n");
294 * For a dissector table, print on the stream described by output,
295 * its short name (which is what's used in the "-d" option) and its
299 display_dissector_table_names(const char *table_name, const char *ui_name,
302 if ((prev_display_dissector_name == NULL) ||
303 (strcmp(prev_display_dissector_name, table_name) != 0)) {
304 fprintf((FILE *)output, "\t%s (%s)\n", table_name, ui_name);
305 prev_display_dissector_name = table_name;
310 * For a dissector handle, print on the stream described by output,
311 * the filter name (which is what's used in the "-d" option) and the full
312 * name for the protocol that corresponds to this handle.
315 display_dissector_names(const gchar *table _U_, gpointer handle, gpointer output)
318 const gchar *proto_filter_name;
319 const gchar *proto_ui_name;
321 proto_id = dissector_handle_get_protocol_index((dissector_handle_t)handle);
323 if (proto_id != -1) {
324 proto_filter_name = proto_get_protocol_filter_name(proto_id);
325 proto_ui_name = proto_get_protocol_name(proto_id);
326 g_assert(proto_filter_name != NULL);
327 g_assert(proto_ui_name != NULL);
329 if ((prev_display_dissector_name == NULL) ||
330 (strcmp(prev_display_dissector_name, proto_filter_name) != 0)) {
331 fprintf((FILE *)output, "\t%s (%s)\n",
334 prev_display_dissector_name = proto_filter_name;
340 * The protocol_name_search structure is used by find_protocol_name_func()
341 * to pass parameters and store results
343 struct protocol_name_search{
344 gchar *searched_name; /* Protocol filter name we are looking for */
345 dissector_handle_t matched_handle; /* Handle for a dissector whose protocol has the specified filter name */
346 guint nb_match; /* How many dissectors matched searched_name */
348 typedef struct protocol_name_search *protocol_name_search_t;
351 * This function parses all dissectors associated with a table to find the
352 * one whose protocol has the specified filter name. It is called
353 * as a reference function in a call to dissector_table_foreach_handle.
354 * The name we are looking for, as well as the results, are stored in the
355 * protocol_name_search struct pointed to by user_data.
356 * If called using dissector_table_foreach_handle, we actually parse the
357 * whole list of dissectors.
360 find_protocol_name_func(const gchar *table _U_, gpointer handle, gpointer user_data)
364 const gchar *protocol_filter_name;
365 protocol_name_search_t search_info;
369 search_info = (protocol_name_search_t)user_data;
371 proto_id = dissector_handle_get_protocol_index((dissector_handle_t)handle);
372 if (proto_id != -1) {
373 protocol_filter_name = proto_get_protocol_filter_name(proto_id);
374 g_assert(protocol_filter_name != NULL);
375 if (strcmp(protocol_filter_name, search_info->searched_name) == 0) {
377 if (search_info->nb_match == 0) {
378 /* Record this handle only if this is the first match */
379 search_info->matched_handle = (dissector_handle_t)handle; /* Record the handle for this matching dissector */
381 search_info->nb_match++;
387 * Allow dissector key names to be sorted alphabetically
391 compare_dissector_key_name(gconstpointer dissector_a, gconstpointer dissector_b)
393 return strcmp((const char*)dissector_a, (const char*)dissector_b);
397 * Print all layer type names supported.
398 * We send the output to the stream described by the handle output.
402 fprint_all_layer_types(FILE *output)
405 prev_display_dissector_name = NULL;
406 dissector_all_tables_foreach_table(display_dissector_table_names, (gpointer)output, (GCompareFunc)compare_dissector_key_name);
410 * Print all protocol names supported for a specific layer type.
411 * table_name contains the layer type name in which the search is performed.
412 * We send the output to the stream described by the handle output.
416 fprint_all_protocols_for_layer_types(FILE *output, gchar *table_name)
419 prev_display_dissector_name = NULL;
420 dissector_table_foreach_handle(table_name,
421 display_dissector_names,
426 * The function below parses the command-line parameters for the decode as
427 * feature (a string pointer by cl_param).
428 * It checks the format of the command-line, searches for a matching table
429 * and dissector. If a table/dissector match is not found, we display a
430 * summary of the available tables/dissectors (on stderr) and return FALSE.
431 * If everything is fine, we get the "Decode as" preference activated,
432 * then we return TRUE.
435 add_decode_as(const gchar *cl_param)
438 guint32 selector, selector2;
439 gchar *decoded_param;
440 gchar *remaining_param;
442 gchar *dissector_str;
443 dissector_handle_t dissector_matching;
444 dissector_table_t table_matching;
445 ftenum_t dissector_table_selector_type;
446 struct protocol_name_search user_protocol_name;
450 /* The following code will allocate and copy the command-line options in a string pointed by decoded_param */
453 decoded_param = g_strdup(cl_param);
454 g_assert(decoded_param);
457 /* The lines below will parse this string (modifying it) to extract all
458 necessary information. Note that decoded_param is still needed since
459 strings are not copied - we just save pointers. */
461 /* This section extracts a layer type (table_name) from decoded_param */
462 table_name = decoded_param; /* Layer type string starts from beginning */
464 remaining_param = strchr(table_name, '=');
465 if (remaining_param == NULL) {
466 cmdarg_err("Parameter \"%s\" doesn't follow the template \"%s\"", cl_param, decode_as_arg_template);
467 /* If the argument does not follow the template, carry on anyway to check
468 if the table name is at least correct. If remaining_param is NULL,
469 we'll exit anyway further down */
472 *remaining_param = '\0'; /* Terminate the layer type string (table_name) where '=' was detected */
475 /* Remove leading and trailing spaces from the table name */
476 while ( table_name[0] == ' ' )
478 while ( table_name[strlen(table_name) - 1] == ' ' )
479 table_name[strlen(table_name) - 1] = '\0'; /* Note: if empty string, while loop will eventually exit */
481 /* The following part searches a table matching with the layer type specified */
482 table_matching = NULL;
484 /* Look for the requested table */
485 if ( !(*(table_name)) ) { /* Is the table name empty, if so, don't even search for anything, display a message */
486 cmdarg_err("No layer type specified"); /* Note, we don't exit here, but table_matching will remain NULL, so we exit below */
489 table_matching = find_dissector_table(table_name);
490 if (!table_matching) {
491 cmdarg_err("Unknown layer type -- %s", table_name); /* Note, we don't exit here, but table_matching will remain NULL, so we exit below */
495 if (!table_matching) {
496 /* Display a list of supported layer types to help the user, if the
497 specified layer type was not found */
498 cmdarg_err("Valid layer types are:");
499 fprint_all_layer_types(stderr);
501 if (remaining_param == NULL || !table_matching) {
502 /* Exit if the layer type was not found, or if no '=' separator was found
504 g_free(decoded_param);
508 if (*(remaining_param + 1) != '=') { /* Check for "==" and not only '=' */
509 cmdarg_err("WARNING: -d requires \"==\" instead of \"=\". Option will be treated as \"%s==%s\"", table_name, remaining_param + 1);
512 remaining_param++; /* Move to the second '=' */
513 *remaining_param = '\0'; /* Remove the second '=' */
515 remaining_param++; /* Position after the layer type string */
517 /* This section extracts a selector value (selector_str) from decoded_param */
519 selector_str = remaining_param; /* Next part starts with the selector number */
521 remaining_param = strchr(selector_str, ',');
522 if (remaining_param == NULL) {
523 cmdarg_err("Parameter \"%s\" doesn't follow the template \"%s\"", cl_param, decode_as_arg_template);
524 /* If the argument does not follow the template, carry on anyway to check
525 if the selector value is at least correct. If remaining_param is NULL,
526 we'll exit anyway further down */
529 *remaining_param = '\0'; /* Terminate the selector number string (selector_str) where ',' was detected */
532 dissector_table_selector_type = get_dissector_table_selector_type(table_name);
534 switch (dissector_table_selector_type) {
540 /* The selector for this table is an unsigned number. Parse it as such.
541 There's no need to remove leading and trailing spaces from the
542 selector number string, because sscanf will do that for us. */
543 switch (sscanf(selector_str, "%u%c%u", &selector, &op, &selector2)) {
548 if (op != ':' && op != '-') {
549 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
550 g_free(decoded_param);
554 if ((selector2 == 0) || ((guint64)selector + selector2 - 1) > G_MAXUINT32) {
555 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
556 g_free(decoded_param);
560 else if (selector2 < selector) {
561 /* We could swap them for the user, but maybe it's better to call
562 * this out as an error in case it's not what was intended? */
563 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
564 g_free(decoded_param);
569 cmdarg_err("Invalid selector number \"%s\"", selector_str);
570 g_free(decoded_param);
577 /* The selector for this table is a string. */
581 /* There are currently no dissector tables with any types other
582 than the ones listed above. */
583 g_assert_not_reached();
586 if (remaining_param == NULL) {
587 /* Exit if no ',' separator was found (see above) */
588 cmdarg_err("Valid protocols for layer type \"%s\" are:", table_name);
589 fprint_all_protocols_for_layer_types(stderr, table_name);
590 g_free(decoded_param);
594 remaining_param++; /* Position after the selector number string */
596 /* This section extracts a protocol filter name (dissector_str) from decoded_param */
598 dissector_str = remaining_param; /* All the rest of the string is the dissector (decode as protocol) name */
600 /* Remove leading and trailing spaces from the dissector name */
601 while ( dissector_str[0] == ' ' )
603 while ( dissector_str[strlen(dissector_str) - 1] == ' ' )
604 dissector_str[strlen(dissector_str) - 1] = '\0'; /* Note: if empty string, while loop will eventually exit */
606 dissector_matching = NULL;
608 /* We now have a pointer to the handle for the requested table inside the variable table_matching */
609 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 */
610 cmdarg_err("No protocol name specified"); /* Note, we don't exit here, but dissector_matching will remain NULL, so we exit below */
613 user_protocol_name.nb_match = 0;
614 user_protocol_name.searched_name = dissector_str;
615 user_protocol_name.matched_handle = NULL;
617 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 */
619 if (user_protocol_name.nb_match != 0) {
620 dissector_matching = user_protocol_name.matched_handle;
621 if (user_protocol_name.nb_match > 1) {
622 cmdarg_err("WARNING: Protocol \"%s\" matched %u dissectors, first one will be used", dissector_str, user_protocol_name.nb_match);
626 /* OK, check whether the problem is that there isn't any such
627 protocol, or that there is but it's not specified as a protocol
628 that's valid for that dissector table.
629 Note, we don't exit here, but dissector_matching will remain NULL,
631 if (proto_get_id_by_filter_name(dissector_str) == -1) {
632 /* No such protocol */
633 cmdarg_err("Unknown protocol -- \"%s\"", dissector_str);
635 cmdarg_err("Protocol \"%s\" isn't valid for layer type \"%s\"",
636 dissector_str, table_name);
641 if (!dissector_matching) {
642 cmdarg_err("Valid protocols for layer type \"%s\" are:", table_name);
643 fprint_all_protocols_for_layer_types(stderr, table_name);
644 g_free(decoded_param);
648 /* This is the end of the code that parses the command-line options.
649 All information is now stored in the variables:
653 The above variables that are strings are still pointing to areas within
654 decoded_parm. decoded_parm thus still needs to be kept allocated in
655 until we stop needing these variables
656 decoded_param will be deallocated at each exit point of this function */
659 /* We now have a pointer to the handle for the requested dissector
660 (requested protocol) inside the variable dissector_matching */
661 switch (dissector_table_selector_type) {
667 /* The selector for this table is an unsigned number. */
669 dissector_change_uint(table_name, selector, dissector_matching);
670 } else if (op == ':') {
671 for (i = selector; i < (guint64)selector + selector2; i++) {
672 dissector_change_uint(table_name, (guint32)i, dissector_matching);
674 } else { /* op == '-' */
675 for (i = selector; i <= selector2; i++) {
676 dissector_change_uint(table_name, (guint32)i, dissector_matching);
683 /* The selector for this table is a string. */
684 dissector_change_string(table_name, selector_str, dissector_matching);
688 /* There are currently no dissector tables with any types other
689 than the ones listed above. */
690 g_assert_not_reached();
692 g_free(decoded_param); /* "Decode As" rule has been successfully added */
697 tfshark_log_handler (const gchar *log_domain, GLogLevelFlags log_level,
698 const gchar *message, gpointer user_data)
700 /* ignore log message, if log_level isn't interesting based
701 upon the console log preferences.
702 If the preferences haven't been loaded loaded yet, display the
705 The default console_log_level preference value is such that only
706 ERROR, CRITICAL and WARNING level messages are processed;
707 MESSAGE, INFO and DEBUG level messages are ignored.
709 XXX: Aug 07, 2009: Prior tshark g_log code was hardwired to process only
710 ERROR and CRITICAL level messages so the current code is a behavioral
711 change. The current behavior is the same as in Wireshark.
713 if ((log_level & G_LOG_LEVEL_MASK & prefs.console_log_level) == 0 &&
714 prefs.console_log_level != 0) {
718 g_log_default_handler(log_domain, log_level, message, user_data);
723 print_current_user(void) {
724 gchar *cur_user, *cur_group;
726 if (started_with_special_privs()) {
727 cur_user = get_cur_username();
728 cur_group = get_cur_groupname();
729 fprintf(stderr, "Running as user \"%s\" and group \"%s\".",
730 cur_user, cur_group);
733 if (running_with_special_privs()) {
734 fprintf(stderr, " This could be dangerous.");
736 fprintf(stderr, "\n");
741 show_version(GString *comp_info_str, GString *runtime_info_str)
743 printf("TFShark " VERSION "%s\n"
750 wireshark_gitversion, get_copyright_info(), comp_info_str->str,
751 runtime_info_str->str);
755 main(int argc, char *argv[])
757 GString *comp_info_str;
758 GString *runtime_info_str;
759 char *init_progfile_dir_error;
761 gboolean arg_error = FALSE;
763 char *gpf_path, *pf_path;
764 char *gdp_path, *dp_path;
765 int gpf_open_errno, gpf_read_errno;
766 int pf_open_errno, pf_read_errno;
767 int gdp_open_errno, gdp_read_errno;
768 int dp_open_errno, dp_read_errno;
770 volatile int exit_status = 0;
771 gboolean quiet = FALSE;
772 gchar *volatile cf_name = NULL;
773 gchar *rfilter = NULL;
774 gchar *dfilter = NULL;
775 dfilter_t *rfcode = NULL;
776 dfilter_t *dfcode = NULL;
780 gchar *output_only = NULL;
782 /* the leading - ensures that getopt() does not permute the argv[] entries
783 we have to make sure that the first getopt() preserves the content of argv[]
784 for the subsequent getopt_long() call */
785 #define OPTSTRING "-2C:d:e:E:hK:lo:O:qQr:R:S:t:T:u:vVxX:Y:z:"
787 static const char optstring[] = OPTSTRING;
789 /* Assemble the compile-time version information string */
790 comp_info_str = g_string_new("Compiled ");
791 get_compiled_version_info(comp_info_str, NULL, epan_get_compiled_version_info);
793 /* Assemble the run-time version information string */
794 runtime_info_str = g_string_new("Running ");
795 get_runtime_version_info(runtime_info_str, NULL);
797 /* Add it to the information to be reported on a crash. */
798 ws_add_crash_info("TFShark " VERSION "%s\n"
803 wireshark_gitversion, comp_info_str->str, runtime_info_str->str);
806 arg_list_utf_16to8(argc, argv);
807 create_app_running_mutex();
808 #if !GLIB_CHECK_VERSION(2,31,0)
814 * Get credential information for later use.
816 init_process_policies();
819 * Attempt to get the pathname of the executable file.
821 init_progfile_dir_error = init_progfile_dir(argv[0], main);
822 if (init_progfile_dir_error != NULL) {
823 fprintf(stderr, "tfshark: Can't get pathname of tfshark program: %s.\n",
824 init_progfile_dir_error);
828 * In order to have the -X opts assigned before the wslua machine starts
829 * we need to call getopts before epan_init() gets called.
832 optind_initial = optind;
834 while ((opt = getopt(argc, argv, optstring)) != -1) {
836 case 'C': /* Configuration Profile */
837 if (profile_exists (optarg, FALSE)) {
838 set_profile_name (optarg);
840 cmdarg_err("Configuration Profile \"%s\" does not exist", optarg);
844 case 'O': /* Only output these protocols */
845 output_only = g_strdup(optarg);
847 case 'V': /* Verbose */
848 print_details = TRUE;
849 print_packet_info = TRUE;
851 case 'x': /* Print packet data in hex (and ASCII) */
853 /* The user asked for hex output, so let's ensure they get it,
854 * even if they're writing to a file.
856 print_packet_info = TRUE;
867 * Print packet summary information is the default, unless either -V or -x
868 * were specified. Note that this is new behavior, which
869 * allows for the possibility of printing only hex/ascii output without
870 * necessarily requiring that either the summary or details be printed too.
872 if (print_summary == -1)
873 print_summary = (print_details || print_hex) ? FALSE : TRUE;
875 optind = optind_initial;
880 /** Send All g_log messages to our own handler **/
884 G_LOG_LEVEL_CRITICAL|
889 G_LOG_FLAG_FATAL|G_LOG_FLAG_RECURSION;
891 g_log_set_handler(NULL,
892 (GLogLevelFlags)log_flags,
893 tfshark_log_handler, NULL /* user_data */);
894 g_log_set_handler(LOG_DOMAIN_MAIN,
895 (GLogLevelFlags)log_flags,
896 tfshark_log_handler, NULL /* user_data */);
898 initialize_funnel_ops();
900 init_report_err(failure_message, open_failure_message, read_failure_message,
901 write_failure_message);
903 timestamp_set_type(TS_RELATIVE);
904 timestamp_set_precision(TS_PREC_AUTO);
905 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
907 init_open_routines();
910 /* Register all the plugin types we have. */
911 epan_register_plugin_types(); /* Types known to libwireshark */
912 ftap_register_plugin_types(); /* Types known to libfiletap */
914 /* Scan for plugins. This does *not* call their registration routines;
915 that's done later. */
918 /* Register all libfiletap plugin modules. */
919 register_all_filetap_modules();
923 /* Register all dissectors; we must do this before checking for the
924 "-G" flag, as the "-G" flag dumps information registered by the
925 dissectors, and we must do it before we read the preferences, in
926 case any dissectors register preferences. */
927 epan_init(register_all_protocols, register_all_protocol_handoffs, NULL, NULL);
929 /* Register all tap listeners; we do this before we parse the arguments,
930 as the "-z" argument can specify a registered tap. */
932 /* we register the plugin taps before the other taps because
933 stats_tree taps plugins will be registered as tap listeners
934 by stats_tree_stat.c and need to registered before that */
936 /* XXX Disable tap registration for now until we can get tfshark set up with
937 * its own set of taps and the necessary registration function etc.
939 register_all_plugin_tap_listeners();
941 register_all_tap_listeners();
944 /* If invoked with the "-G" flag, we dump out information based on
945 the argument to the "-G" flag; if no argument is specified,
946 for backwards compatibility we dump out a glossary of display
949 XXX - we do this here, for now, to support "-G" with no arguments.
950 If none of our build or other processes uses "-G" with no arguments,
951 we can just process it with the other arguments. */
952 if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
953 proto_initialize_all_prefixes();
956 proto_registrar_dump_fields();
958 if (strcmp(argv[2], "column-formats") == 0)
959 column_dump_column_formats();
960 else if (strcmp(argv[2], "currentprefs") == 0) {
961 read_prefs(&gpf_open_errno, &gpf_read_errno, &gpf_path,
962 &pf_open_errno, &pf_read_errno, &pf_path);
965 else if (strcmp(argv[2], "decodes") == 0)
966 dissector_dump_decodes();
967 else if (strcmp(argv[2], "defaultprefs") == 0)
969 else if (strcmp(argv[2], "fields") == 0)
970 proto_registrar_dump_fields();
971 else if (strcmp(argv[2], "ftypes") == 0)
972 proto_registrar_dump_ftypes();
973 else if (strcmp(argv[2], "heuristic-decodes") == 0)
974 dissector_dump_heur_decodes();
975 else if (strcmp(argv[2], "plugins") == 0) {
980 wslua_plugins_dump_all();
983 else if (strcmp(argv[2], "protocols") == 0)
984 proto_registrar_dump_protocols();
985 else if (strcmp(argv[2], "values") == 0)
986 proto_registrar_dump_values();
987 else if (strcmp(argv[2], "?") == 0)
988 glossary_option_help();
989 else if (strcmp(argv[2], "-?") == 0)
990 glossary_option_help();
992 cmdarg_err("Invalid \"%s\" option for -G flag, enter -G ? for more help.", argv[2]);
999 /* Set the C-language locale to the native environment. */
1000 setlocale(LC_ALL, "");
1002 prefs_p = read_prefs(&gpf_open_errno, &gpf_read_errno, &gpf_path,
1003 &pf_open_errno, &pf_read_errno, &pf_path);
1004 if (gpf_path != NULL) {
1005 if (gpf_open_errno != 0) {
1006 cmdarg_err("Can't open global preferences file \"%s\": %s.",
1007 pf_path, g_strerror(gpf_open_errno));
1009 if (gpf_read_errno != 0) {
1010 cmdarg_err("I/O error reading global preferences file \"%s\": %s.",
1011 pf_path, g_strerror(gpf_read_errno));
1014 if (pf_path != NULL) {
1015 if (pf_open_errno != 0) {
1016 cmdarg_err("Can't open your preferences file \"%s\": %s.", pf_path,
1017 g_strerror(pf_open_errno));
1019 if (pf_read_errno != 0) {
1020 cmdarg_err("I/O error reading your preferences file \"%s\": %s.",
1021 pf_path, g_strerror(pf_read_errno));
1027 /* Read the disabled protocols file. */
1028 read_disabled_protos_list(&gdp_path, &gdp_open_errno, &gdp_read_errno,
1029 &dp_path, &dp_open_errno, &dp_read_errno);
1030 if (gdp_path != NULL) {
1031 if (gdp_open_errno != 0) {
1032 cmdarg_err("Could not open global disabled protocols file\n\"%s\": %s.",
1033 gdp_path, g_strerror(gdp_open_errno));
1035 if (gdp_read_errno != 0) {
1036 cmdarg_err("I/O error reading global disabled protocols file\n\"%s\": %s.",
1037 gdp_path, g_strerror(gdp_read_errno));
1041 if (dp_path != NULL) {
1042 if (dp_open_errno != 0) {
1044 "Could not open your disabled protocols file\n\"%s\": %s.", dp_path,
1045 g_strerror(dp_open_errno));
1047 if (dp_read_errno != 0) {
1049 "I/O error reading your disabled protocols file\n\"%s\": %s.", dp_path,
1050 g_strerror(dp_read_errno));
1055 cap_file_init(&cfile);
1057 /* Print format defaults to this. */
1058 print_format = PR_FMT_TEXT;
1060 output_fields = output_fields_new();
1062 /* Now get our args */
1063 while ((opt = getopt(argc, argv, optstring)) != -1) {
1065 case '2': /* Perform two pass analysis */
1066 perform_two_pass_analysis = TRUE;
1069 /* Configuration profile settings were already processed just ignore them this time*/
1071 case 'd': /* Decode as rule */
1072 if (!add_decode_as(optarg))
1075 #if defined(HAVE_HEIMDAL_KERBEROS) || defined(HAVE_MIT_KERBEROS)
1076 case 'K': /* Kerberos keytab file */
1077 read_keytab_file(optarg);
1082 output_fields_add(output_fields, optarg);
1086 if (!output_fields_set_option(output_fields, optarg)) {
1087 cmdarg_err("\"%s\" is not a valid field output option=value pair.", optarg);
1088 output_fields_list_options(stderr);
1093 case 'h': /* Print help and exit */
1097 case 'l': /* "Line-buffer" standard output */
1098 /* This isn't line-buffering, strictly speaking, it's just
1099 flushing the standard output after the information for
1100 each packet is printed; however, that should be good
1101 enough for all the purposes to which "-l" is put (and
1102 is probably actually better for "-V", as it does fewer
1105 See the comment in "process_packet()" for an explanation of
1106 why we do that, and why we don't just use "setvbuf()" to
1107 make the standard output line-buffered (short version: in
1108 Windows, "line-buffered" is the same as "fully-buffered",
1109 and the output buffer is only flushed when it fills up). */
1110 line_buffered = TRUE;
1112 case 'o': /* Override preference from command line */
1113 switch (prefs_set_pref(optarg)) {
1118 case PREFS_SET_SYNTAX_ERR:
1119 cmdarg_err("Invalid -o flag \"%s\"", optarg);
1123 case PREFS_SET_NO_SUCH_PREF:
1124 case PREFS_SET_OBSOLETE:
1125 cmdarg_err("-o flag \"%s\" specifies unknown preference", optarg);
1130 case 'q': /* Quiet */
1133 case 'Q': /* Really quiet */
1135 really_quiet = TRUE;
1137 case 'r': /* Read capture file x */
1138 cf_name = g_strdup(optarg);
1140 case 'R': /* Read file filter */
1143 case 'S': /* Set the line Separator to be printed between packets */
1144 separator = strdup(optarg);
1146 case 't': /* Time stamp type */
1147 if (strcmp(optarg, "r") == 0)
1148 timestamp_set_type(TS_RELATIVE);
1149 else if (strcmp(optarg, "a") == 0)
1150 timestamp_set_type(TS_ABSOLUTE);
1151 else if (strcmp(optarg, "ad") == 0)
1152 timestamp_set_type(TS_ABSOLUTE_WITH_YMD);
1153 else if (strcmp(optarg, "adoy") == 0)
1154 timestamp_set_type(TS_ABSOLUTE_WITH_YDOY);
1155 else if (strcmp(optarg, "d") == 0)
1156 timestamp_set_type(TS_DELTA);
1157 else if (strcmp(optarg, "dd") == 0)
1158 timestamp_set_type(TS_DELTA_DIS);
1159 else if (strcmp(optarg, "e") == 0)
1160 timestamp_set_type(TS_EPOCH);
1161 else if (strcmp(optarg, "u") == 0)
1162 timestamp_set_type(TS_UTC);
1163 else if (strcmp(optarg, "ud") == 0)
1164 timestamp_set_type(TS_UTC_WITH_YMD);
1165 else if (strcmp(optarg, "udoy") == 0)
1166 timestamp_set_type(TS_UTC_WITH_YDOY);
1168 cmdarg_err("Invalid time stamp type \"%s\"; it must be one of:", optarg);
1169 cmdarg_err_cont("\t\"a\" for absolute\n"
1170 "\t\"ad\" for absolute with YYYY-MM-DD date\n"
1171 "\t\"adoy\" for absolute with YYYY/DOY date\n"
1172 "\t\"d\" for delta\n"
1173 "\t\"dd\" for delta displayed\n"
1174 "\t\"e\" for epoch\n"
1175 "\t\"r\" for relative\n"
1176 "\t\"u\" for absolute UTC\n"
1177 "\t\"ud\" for absolute UTC with YYYY-MM-DD date\n"
1178 "\t\"udoy\" for absolute UTC with YYYY/DOY date");
1182 case 'T': /* printing Type */
1183 if (strcmp(optarg, "text") == 0) {
1184 output_action = WRITE_TEXT;
1185 print_format = PR_FMT_TEXT;
1186 } else if (strcmp(optarg, "ps") == 0) {
1187 output_action = WRITE_TEXT;
1188 print_format = PR_FMT_PS;
1189 } else if (strcmp(optarg, "pdml") == 0) {
1190 output_action = WRITE_XML;
1191 print_details = TRUE; /* Need details */
1192 print_summary = FALSE; /* Don't allow summary */
1193 } else if (strcmp(optarg, "psml") == 0) {
1194 output_action = WRITE_XML;
1195 print_details = FALSE; /* Don't allow details */
1196 print_summary = TRUE; /* Need summary */
1197 } else if (strcmp(optarg, "fields") == 0) {
1198 output_action = WRITE_FIELDS;
1199 print_details = TRUE; /* Need full tree info */
1200 print_summary = FALSE; /* Don't allow summary */
1202 cmdarg_err("Invalid -T parameter \"%s\"; it must be one of:", optarg); /* x */
1203 cmdarg_err_cont("\t\"fields\" The values of fields specified with the -e option, in a form\n"
1204 "\t specified by the -E option.\n"
1205 "\t\"pdml\" Packet Details Markup Language, an XML-based format for the\n"
1206 "\t details of a decoded packet. This information is equivalent to\n"
1207 "\t the packet details printed with the -V flag.\n"
1208 "\t\"ps\" PostScript for a human-readable one-line summary of each of\n"
1209 "\t the packets, or a multi-line view of the details of each of\n"
1210 "\t the packets, depending on whether the -V flag was specified.\n"
1211 "\t\"psml\" Packet Summary Markup Language, an XML-based format for the\n"
1212 "\t summary information of a decoded packet. This information is\n"
1213 "\t equivalent to the information shown in the one-line summary\n"
1214 "\t printed by default.\n"
1215 "\t\"text\" Text of a human-readable one-line summary of each of the\n"
1216 "\t packets, or a multi-line view of the details of each of the\n"
1217 "\t packets, depending on whether the -V flag was specified.\n"
1218 "\t This is the default.");
1222 case 'u': /* Seconds type */
1223 if (strcmp(optarg, "s") == 0)
1224 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
1225 else if (strcmp(optarg, "hms") == 0)
1226 timestamp_set_seconds_type(TS_SECONDS_HOUR_MIN_SEC);
1228 cmdarg_err("Invalid seconds type \"%s\"; it must be one of:", optarg);
1229 cmdarg_err_cont("\t\"s\" for seconds\n"
1230 "\t\"hms\" for hours, minutes and seconds");
1234 case 'v': /* Show version and exit */
1236 show_version(comp_info_str, runtime_info_str);
1237 g_string_free(comp_info_str, TRUE);
1238 g_string_free(runtime_info_str, TRUE);
1239 /* We don't really have to cleanup here, but it's a convenient way to test
1240 * start-up and shut-down of the epan library without any UI-specific
1241 * cruft getting in the way. Makes the results of running
1242 * $ ./tools/valgrind-wireshark -n
1243 * much more useful. */
1247 case 'O': /* Only output these protocols */
1248 /* already processed; just ignore it now */
1250 case 'V': /* Verbose */
1251 /* already processed; just ignore it now */
1253 case 'x': /* Print packet data in hex (and ASCII) */
1254 /* already processed; just ignore it now */
1262 /* We won't call the init function for the stat this soon
1263 as it would disallow MATE's fields (which are registered
1264 by the preferences set callback) from being used as
1265 part of a tap filter. Instead, we just add the argument
1266 to a list of stat arguments. */
1267 if (!process_stat_cmd_arg(optarg)) {
1268 if (strcmp("help", optarg)==0) {
1269 fprintf(stderr, "tfshark: The available statistics for the \"-z\" option are:\n");
1270 list_stat_cmd_args();
1273 cmdarg_err("Invalid -z argument \"%s\"; it must be one of:", optarg);
1274 list_stat_cmd_args();
1279 case '?': /* Bad flag - print usage message */
1286 /* If we specified output fields, but not the output field type... */
1287 if (WRITE_FIELDS != output_action && 0 != output_fields_num_fields(output_fields)) {
1288 cmdarg_err("Output fields were specified with \"-e\", "
1289 "but \"-Tfields\" was not specified.");
1291 } else if (WRITE_FIELDS == output_action && 0 == output_fields_num_fields(output_fields)) {
1292 cmdarg_err("\"-Tfields\" was specified, but no fields were "
1293 "specified with \"-e\".");
1298 /* If no capture filter or display filter has been specified, and there are
1299 still command-line arguments, treat them as the tokens of a capture
1300 filter (if no "-r" flag was specified) or a display filter (if a "-r"
1301 flag was specified. */
1302 if (optind < argc) {
1303 if (cf_name != NULL) {
1304 if (dfilter != NULL) {
1305 cmdarg_err("Display filters were specified both with \"-d\" "
1306 "and with additional command-line arguments.");
1309 dfilter = get_args_as_string(argc, argv, optind);
1313 /* if "-q" wasn't specified, we should print packet information */
1315 print_packet_info = TRUE;
1323 if (output_action != WRITE_TEXT) {
1324 cmdarg_err("Raw packet hex data can only be printed as text or PostScript");
1329 if (output_only != NULL) {
1332 if (!print_details) {
1333 cmdarg_err("-O requires -V");
1337 output_only_tables = g_hash_table_new (g_str_hash, g_str_equal);
1338 for (ps = strtok (output_only, ","); ps; ps = strtok (NULL, ",")) {
1339 g_hash_table_insert(output_only_tables, (gpointer)ps, (gpointer)ps);
1343 if (rfilter != NULL && !perform_two_pass_analysis) {
1344 cmdarg_err("-R without -2 is deprecated. For single-pass filtering use -Y.");
1348 /* Notify all registered modules that have had any of their preferences
1349 changed either from one of the preferences file or from the command
1350 line that their preferences have changed. */
1353 /* At this point MATE will have registered its field array so we can
1354 have a tap filter with one of MATE's late-registered fields as part
1355 of the filter. We can now process all the "-z" arguments. */
1356 start_requested_stats();
1358 /* disabled protocols as per configuration file */
1359 if (gdp_path == NULL && dp_path == NULL) {
1360 set_disabled_protos_list();
1363 /* Build the column format array */
1364 build_column_format_array(&cfile.cinfo, prefs_p->num_cols, TRUE);
1366 if (rfilter != NULL) {
1367 if (!dfilter_compile(rfilter, &rfcode)) {
1368 cmdarg_err("%s", dfilter_error_msg);
1373 cfile.rfcode = rfcode;
1375 if (dfilter != NULL) {
1376 if (!dfilter_compile(dfilter, &dfcode)) {
1377 cmdarg_err("%s", dfilter_error_msg);
1382 cfile.dfcode = dfcode;
1384 if (print_packet_info) {
1385 /* If we're printing as text or PostScript, we have
1386 to create a print stream. */
1387 if (output_action == WRITE_TEXT) {
1388 switch (print_format) {
1391 print_stream = print_stream_text_stdio_new(stdout);
1395 print_stream = print_stream_ps_stdio_new(stdout);
1399 g_assert_not_reached();
1404 /* We have to dissect each packet if:
1406 we're printing information about each packet;
1408 we're using a read filter on the packets;
1410 we're using a display filter on the packets;
1412 we're using any taps that need dissection. */
1413 do_dissection = print_packet_info || rfcode || dfcode || tap_listeners_require_dissection();
1417 * We're reading a capture file.
1421 * Immediately relinquish any special privileges we have; we must not
1422 * be allowed to read any capture files the user running TShark
1425 relinquish_special_privs_perm();
1426 print_current_user();
1428 if (cf_open(&cfile, cf_name, WTAP_TYPE_AUTO, FALSE, &err) != CF_OK) {
1433 /* Process the packets in the file */
1435 /* XXX - for now there is only 1 packet */
1436 err = load_cap_file(&cfile, 1, 0);
1438 CATCH(OutOfMemoryError) {
1442 "Sorry, but TFShark has to terminate now!\n"
1444 "Some infos / workarounds can be found at:\n"
1445 "http://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
1451 /* We still dump out the results of taps, etc., as we might have
1452 read some packets; however, we exit with an error status. */
1459 if (cfile.frames != NULL) {
1460 free_frame_data_sequence(cfile.frames);
1461 cfile.frames = NULL;
1464 draw_tap_listeners(TRUE);
1465 funnel_dump_all_text_windows();
1466 epan_free(cfile.epan);
1469 output_fields_free(output_fields);
1470 output_fields = NULL;
1475 static const nstime_t *
1476 tfshark_get_frame_ts(void *data, guint32 frame_num)
1478 capture_file *cf = (capture_file *) data;
1480 if (ref && ref->num == frame_num)
1481 return &ref->abs_ts;
1483 if (prev_dis && prev_dis->num == frame_num)
1484 return &prev_dis->abs_ts;
1486 if (prev_cap && prev_cap->num == frame_num)
1487 return &prev_cap->abs_ts;
1490 frame_data *fd = frame_data_sequence_find(cf->frames, frame_num);
1492 return (fd) ? &fd->abs_ts : NULL;
1499 no_interface_name(void *data _U_, guint32 interface_id _U_)
1505 tfshark_epan_new(capture_file *cf)
1507 epan_t *epan = epan_new();
1510 epan->get_frame_ts = tfshark_get_frame_ts;
1511 epan->get_interface_name = no_interface_name;
1512 epan->get_user_comment = NULL;
1518 process_packet_first_pass(capture_file *cf, epan_dissect_t *edt,
1519 gint64 offset, struct wtap_pkthdr *whdr,
1526 /* The frame number of this packet is one more than the count of
1527 frames in this packet. */
1528 framenum = cf->count + 1;
1530 /* If we're not running a display filter and we're not printing any
1531 packet information, we don't need to do a dissection. This means
1532 that all packets can be marked as 'passed'. */
1535 frame_data_init(&fdlocal, framenum, whdr, offset, cum_bytes);
1537 /* If we're going to print packet information, or we're going to
1538 run a read filter, or display filter, or we're going to process taps, set up to
1539 do a dissection and do so. */
1541 /* If we're running a read filter, prime the epan_dissect_t with that
1544 epan_dissect_prime_dfilter(edt, cf->rfcode);
1546 frame_data_set_before_dissect(&fdlocal, &cf->elapsed_time,
1548 if (ref == &fdlocal) {
1549 ref_frame = fdlocal;
1553 epan_dissect_file_run(edt, whdr, file_tvbuff_new(&fdlocal, pd), &fdlocal, NULL);
1555 /* Run the read filter if we have one. */
1557 passed = dfilter_apply_edt(cf->rfcode, edt);
1561 frame_data_set_after_dissect(&fdlocal, &cum_bytes);
1562 prev_cap = prev_dis = frame_data_sequence_add(cf->frames, &fdlocal);
1564 /* If we're not doing dissection then there won't be any dependent frames.
1565 * More importantly, edt.pi.dependent_frames won't be initialized because
1566 * epan hasn't been initialized.
1569 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->frames);
1574 /* if we don't add it to the frame_data_sequence, clean it up right now
1576 frame_data_destroy(&fdlocal);
1580 epan_dissect_reset(edt);
1586 process_packet_second_pass(capture_file *cf, epan_dissect_t *edt, frame_data *fdata,
1587 struct wtap_pkthdr *phdr, Buffer *buf,
1593 /* If we're not running a display filter and we're not printing any
1594 packet information, we don't need to do a dissection. This means
1595 that all packets can be marked as 'passed'. */
1598 /* If we're going to print packet information, or we're going to
1599 run a read filter, or we're going to process taps, set up to
1600 do a dissection and do so. */
1603 /* If we're running a display filter, prime the epan_dissect_t with that
1606 epan_dissect_prime_dfilter(edt, cf->dfcode);
1608 col_custom_prime_edt(edt, &cf->cinfo);
1610 /* We only need the columns if either
1611 1) some tap needs the columns
1613 2) we're printing packet info but we're *not* verbose; in verbose
1614 mode, we print the protocol tree, not the protocol summary.
1616 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary))
1621 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1628 epan_dissect_file_run_with_taps(edt, phdr, file_tvbuff_new_buffer(fdata, buf), fdata, cinfo);
1630 /* Run the read/display filter if we have one. */
1632 passed = dfilter_apply_edt(cf->dfcode, edt);
1636 frame_data_set_after_dissect(fdata, &cum_bytes);
1637 /* Process this packet. */
1638 if (print_packet_info) {
1639 /* We're printing packet information; print the information for
1641 print_packet(cf, edt);
1643 /* The ANSI C standard does not appear to *require* that a line-buffered
1644 stream be flushed to the host environment whenever a newline is
1645 written, it just says that, on such a stream, characters "are
1646 intended to be transmitted to or from the host environment as a
1647 block when a new-line character is encountered".
1649 The Visual C++ 6.0 C implementation doesn't do what is intended;
1650 even if you set a stream to be line-buffered, it still doesn't
1651 flush the buffer at the end of every line.
1653 So, if the "-l" flag was specified, we flush the standard output
1654 at the end of a packet. This will do the right thing if we're
1655 printing packet summary lines, and, as we print the entire protocol
1656 tree for a single packet without waiting for anything to happen,
1657 it should be as good as line-buffered mode if we're printing
1658 protocol trees. (The whole reason for the "-l" flag in either
1659 tcpdump or TShark is to allow the output of a live capture to
1660 be piped to a program or script and to have that script see the
1661 information for the packet as soon as it's printed, rather than
1662 having to wait until a standard I/O buffer fills up. */
1666 if (ferror(stdout)) {
1667 show_print_file_io_error(errno);
1676 epan_dissect_reset(edt);
1678 return passed || fdata->flags.dependent_of_displayed;
1682 local_wtap_read(capture_file *cf, struct wtap_pkthdr* file_phdr, int *err, gchar **err_info, gint64 *data_offset _U_, guint8** data_buffer)
1685 gint64 packet_size = wtap_file_size(cf->wth, err);
1687 *data_buffer = (guint8*)g_malloc((gsize)packet_size);
1688 bytes_read = file_read(*data_buffer, (unsigned int)packet_size, cf->wth->fh);
1690 if (bytes_read < 0) {
1691 *err = file_error(cf->wth->fh, err_info);
1693 *err = FTAP_ERR_SHORT_READ;
1695 } else if (bytes_read == 0) {
1696 /* Done with file, no error */
1701 /* XXX - SET FRAME SIZE EQUAL TO TOTAL FILE SIZE */
1702 file_phdr->caplen = (guint32)packet_size;
1703 file_phdr->len = (guint32)packet_size;
1707 * Set the packet encapsulation to the file's encapsulation
1708 * value; if that's not WTAP_ENCAP_PER_PACKET, it's the
1709 * right answer (and means that the read routine for this
1710 * capture file type doesn't have to set it), and if it
1711 * *is* WTAP_ENCAP_PER_PACKET, the caller needs to set it
1714 wth->phdr.pkt_encap = wth->file_encap;
1716 if (!wth->subtype_read(wth, err, err_info, data_offset)) {
1718 * If we didn't get an error indication, we read
1719 * the last packet. See if there's any deferred
1720 * error, as might, for example, occur if we're
1721 * reading a compressed file, and we got an error
1722 * reading compressed data from the file, but
1723 * got enough compressed data to decompress the
1724 * last packet of the file.
1727 *err = file_error(wth->fh, err_info);
1728 return FALSE; /* failure */
1732 * It makes no sense for the captured data length to be bigger
1733 * than the actual data length.
1735 if (wth->phdr.caplen > wth->phdr.len)
1736 wth->phdr.caplen = wth->phdr.len;
1739 * Make sure that it's not WTAP_ENCAP_PER_PACKET, as that
1740 * probably means the file has that encapsulation type
1741 * but the read routine didn't set this packet's
1742 * encapsulation type.
1744 g_assert(wth->phdr.pkt_encap != WTAP_ENCAP_PER_PACKET);
1747 return TRUE; /* success */
1751 load_cap_file(capture_file *cf, int max_packet_count, gint64 max_byte_count)
1755 gchar *err_info = NULL;
1756 gint64 data_offset = 0;
1757 gboolean filtering_tap_listeners;
1760 epan_dissect_t *edt = NULL;
1761 struct wtap_pkthdr file_phdr;
1764 if (print_packet_info) {
1765 if (!write_preamble(cf)) {
1767 show_print_file_io_error(err);
1772 /* Do we have any tap listeners with filters? */
1773 filtering_tap_listeners = have_filtering_tap_listeners();
1775 /* Get the union of the flags for all tap listeners. */
1776 tap_flags = union_of_tap_listener_flags();
1778 memset(&file_phdr, 0, sizeof(file_phdr));
1780 /* XXX - TEMPORARY HACK TO ELF DISSECTOR */
1781 file_phdr.pkt_encap = 1234;
1783 if (perform_two_pass_analysis) {
1786 /* Allocate a frame_data_sequence for all the frames. */
1787 cf->frames = new_frame_data_sequence();
1789 if (do_dissection) {
1790 gboolean create_proto_tree = FALSE;
1792 /* If we're going to be applying a filter, we'll need to
1793 create a protocol tree against which to apply the filter. */
1795 create_proto_tree = TRUE;
1797 /* We're not going to display the protocol tree on this pass,
1798 so it's not going to be "visible". */
1799 edt = epan_dissect_new(cf->epan, create_proto_tree, FALSE);
1801 while (local_wtap_read(cf, &file_phdr, &err, &err_info, &data_offset, &raw_data)) {
1802 if (process_packet_first_pass(cf, edt, data_offset, &file_phdr/*wtap_phdr(cf->wth)*/,
1803 wtap_buf_ptr(cf->wth))) {
1805 /* Stop reading if we have the maximum number of packets;
1806 * When the -c option has not been used, max_packet_count
1807 * starts at 0, which practically means, never stop reading.
1808 * (unless we roll over max_packet_count ?)
1810 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
1811 err = 0; /* This is not an error */
1818 epan_dissect_free(edt);
1823 /* Close the sequential I/O side, to free up memory it requires. */
1824 wtap_sequential_close(cf->wth);
1827 /* Allow the protocol dissectors to free up memory that they
1828 * don't need after the sequential run-through of the packets. */
1829 postseq_cleanup_all_protocols();
1833 buffer_init(&buf, 1500);
1835 if (do_dissection) {
1836 gboolean create_proto_tree;
1838 if (cf->dfcode || print_details || filtering_tap_listeners ||
1839 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo))
1840 create_proto_tree = TRUE;
1842 create_proto_tree = FALSE;
1844 /* The protocol tree will be "visible", i.e., printed, only if we're
1845 printing packet details, which is true if we're printing stuff
1846 ("print_packet_info" is true) and we're in verbose mode
1847 ("packet_details" is true). */
1848 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
1851 for (framenum = 1; err == 0 && framenum <= cf->count; framenum++) {
1852 fdata = frame_data_sequence_find(cf->frames, framenum);
1854 if (wtap_seek_read(cf->wth, fdata->file_off,
1855 &buf, fdata->cap_len, &err, &err_info)) {
1856 process_packet_second_pass(cf, edt, fdata, &cf->phdr, &buf, tap_flags);
1859 process_packet_second_pass(cf, edt, fdata, &cf->phdr, &buf, tap_flags);
1864 epan_dissect_free(edt);
1873 if (do_dissection) {
1874 gboolean create_proto_tree;
1876 if (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
1877 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo))
1878 create_proto_tree = TRUE;
1880 create_proto_tree = FALSE;
1882 /* The protocol tree will be "visible", i.e., printed, only if we're
1883 printing packet details, which is true if we're printing stuff
1884 ("print_packet_info" is true) and we're in verbose mode
1885 ("packet_details" is true). */
1886 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
1889 while (local_wtap_read(cf, &file_phdr, &err, &err_info, &data_offset, &raw_data)) {
1893 process_packet(cf, edt, data_offset, &file_phdr/*wtap_phdr(cf->wth)*/,
1894 raw_data, tap_flags);
1896 /* Stop reading if we have the maximum number of packets;
1897 * When the -c option has not been used, max_packet_count
1898 * starts at 0, which practically means, never stop reading.
1899 * (unless we roll over max_packet_count ?)
1901 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
1902 err = 0; /* This is not an error */
1908 epan_dissect_free(edt);
1915 * Print a message noting that the read failed somewhere along the line.
1917 * If we're printing packet data, and the standard output and error are
1918 * going to the same place, flush the standard output, so everything
1919 * buffered up is written, and then print a newline to the standard error
1920 * before printing the error message, to separate it from the packet
1921 * data. (Alas, that only works on UN*X; st_dev is meaningless, and
1922 * the _fstat() documentation at Microsoft doesn't indicate whether
1923 * st_ino is even supported.)
1926 if (print_packet_info) {
1927 struct stat stat_stdout, stat_stderr;
1929 if (fstat(1, &stat_stdout) == 0 && fstat(2, &stat_stderr) == 0) {
1930 if (stat_stdout.st_dev == stat_stderr.st_dev &&
1931 stat_stdout.st_ino == stat_stderr.st_ino) {
1933 fprintf(stderr, "\n");
1940 case FTAP_ERR_UNSUPPORTED:
1941 cmdarg_err("The file \"%s\" contains record data that TFShark doesn't support.\n(%s)",
1942 cf->filename, err_info);
1946 case FTAP_ERR_UNSUPPORTED_ENCAP:
1947 cmdarg_err("The file \"%s\" has a packet with a network type that TFShark doesn't support.\n(%s)",
1948 cf->filename, err_info);
1952 case FTAP_ERR_CANT_READ:
1953 cmdarg_err("An attempt to read from the file \"%s\" failed for some unknown reason.",
1957 case FTAP_ERR_SHORT_READ:
1958 cmdarg_err("The file \"%s\" appears to have been cut short in the middle of a packet.",
1962 case FTAP_ERR_BAD_FILE:
1963 cmdarg_err("The file \"%s\" appears to be damaged or corrupt.\n(%s)",
1964 cf->filename, err_info);
1968 case FTAP_ERR_DECOMPRESS:
1969 cmdarg_err("The compressed file \"%s\" appears to be damaged or corrupt.\n"
1970 "(%s)", cf->filename, err_info);
1974 cmdarg_err("An error occurred while reading the file \"%s\": %s.",
1975 cf->filename, ftap_strerror(err));
1979 if (print_packet_info) {
1980 if (!write_finale()) {
1982 show_print_file_io_error(err);
1988 wtap_close(cf->wth);
1995 process_packet(capture_file *cf, epan_dissect_t *edt, gint64 offset,
1996 struct wtap_pkthdr *whdr, const guchar *pd, guint tap_flags)
2002 /* Count this packet. */
2005 /* If we're not running a display filter and we're not printing any
2006 packet information, we don't need to do a dissection. This means
2007 that all packets can be marked as 'passed'. */
2010 frame_data_init(&fdata, cf->count, whdr, offset, cum_bytes);
2012 /* If we're going to print packet information, or we're going to
2013 run a read filter, or we're going to process taps, set up to
2014 do a dissection and do so. */
2016 /* If we're running a filter, prime the epan_dissect_t with that
2019 epan_dissect_prime_dfilter(edt, cf->dfcode);
2021 col_custom_prime_edt(edt, &cf->cinfo);
2023 /* We only need the columns if either
2024 1) some tap needs the columns
2026 2) we're printing packet info but we're *not* verbose; in verbose
2027 mode, we print the protocol tree, not the protocol summary.
2029 3) there is a column mapped as an individual field */
2030 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
2035 frame_data_set_before_dissect(&fdata, &cf->elapsed_time,
2037 if (ref == &fdata) {
2042 epan_dissect_file_run_with_taps(edt, whdr, frame_tvbuff_new(&fdata, pd), &fdata, cinfo);
2044 /* Run the filter if we have it. */
2046 passed = dfilter_apply_edt(cf->dfcode, edt);
2050 frame_data_set_after_dissect(&fdata, &cum_bytes);
2052 /* Process this packet. */
2053 if (print_packet_info) {
2054 /* We're printing packet information; print the information for
2056 print_packet(cf, edt);
2058 /* The ANSI C standard does not appear to *require* that a line-buffered
2059 stream be flushed to the host environment whenever a newline is
2060 written, it just says that, on such a stream, characters "are
2061 intended to be transmitted to or from the host environment as a
2062 block when a new-line character is encountered".
2064 The Visual C++ 6.0 C implementation doesn't do what is intended;
2065 even if you set a stream to be line-buffered, it still doesn't
2066 flush the buffer at the end of every line.
2068 So, if the "-l" flag was specified, we flush the standard output
2069 at the end of a packet. This will do the right thing if we're
2070 printing packet summary lines, and, as we print the entire protocol
2071 tree for a single packet without waiting for anything to happen,
2072 it should be as good as line-buffered mode if we're printing
2073 protocol trees. (The whole reason for the "-l" flag in either
2074 tcpdump or TShark is to allow the output of a live capture to
2075 be piped to a program or script and to have that script see the
2076 information for the packet as soon as it's printed, rather than
2077 having to wait until a standard I/O buffer fills up. */
2081 if (ferror(stdout)) {
2082 show_print_file_io_error(errno);
2087 /* this must be set after print_packet() [bug #8160] */
2088 prev_dis_frame = fdata;
2089 prev_dis = &prev_dis_frame;
2092 prev_cap_frame = fdata;
2093 prev_cap = &prev_cap_frame;
2096 epan_dissect_reset(edt);
2097 frame_data_destroy(&fdata);
2103 write_preamble(capture_file *cf)
2105 switch (output_action) {
2108 return print_preamble(print_stream, cf ? cf->filename : NULL, wireshark_gitversion);
2112 write_pdml_preamble(stdout, cf ? cf->filename : NULL);
2114 write_psml_preamble(stdout);
2115 return !ferror(stdout);
2118 write_fields_preamble(output_fields, stdout);
2119 return !ferror(stdout);
2122 g_assert_not_reached();
2128 get_line_buf(size_t len)
2130 static char *line_bufp = NULL;
2131 static size_t line_buf_len = 256;
2132 size_t new_line_buf_len;
2134 for (new_line_buf_len = line_buf_len; len > new_line_buf_len;
2135 new_line_buf_len *= 2)
2137 if (line_bufp == NULL) {
2138 line_buf_len = new_line_buf_len;
2139 line_bufp = (char *)g_malloc(line_buf_len + 1);
2141 if (new_line_buf_len > line_buf_len) {
2142 line_buf_len = new_line_buf_len;
2143 line_bufp = (char *)g_realloc(line_bufp, line_buf_len + 1);
2150 put_string(char *dest, const char *str, size_t str_len)
2152 memcpy(dest, str, str_len);
2153 dest[str_len] = '\0';
2157 put_spaces_string(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
2161 for (i = str_len; i < str_with_spaces; i++)
2164 put_string(dest, str, str_len);
2168 put_string_spaces(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
2172 memcpy(dest, str, str_len);
2173 for (i = str_len; i < str_with_spaces; i++)
2176 dest[str_with_spaces] = '\0';
2180 print_columns(capture_file *cf)
2188 line_bufp = get_line_buf(256);
2191 for (i = 0; i < cf->cinfo.num_cols; i++) {
2192 /* Skip columns not marked as visible. */
2193 if (!get_column_visible(i))
2195 switch (cf->cinfo.col_fmt[i]) {
2197 column_len = col_len = strlen(cf->cinfo.col_data[i]);
2200 line_bufp = get_line_buf(buf_offset + column_len);
2201 put_spaces_string(line_bufp + buf_offset, cf->cinfo.col_data[i], col_len, column_len);
2207 case COL_ABS_YMD_TIME: /* XXX - wider */
2208 case COL_ABS_YDOY_TIME: /* XXX - wider */
2210 case COL_UTC_YMD_TIME: /* XXX - wider */
2211 case COL_UTC_YDOY_TIME: /* XXX - wider */
2212 column_len = col_len = strlen(cf->cinfo.col_data[i]);
2213 if (column_len < 10)
2215 line_bufp = get_line_buf(buf_offset + column_len);
2216 put_spaces_string(line_bufp + buf_offset, cf->cinfo.col_data[i], col_len, column_len);
2222 case COL_DEF_DL_SRC:
2223 case COL_RES_DL_SRC:
2224 case COL_UNRES_DL_SRC:
2225 case COL_DEF_NET_SRC:
2226 case COL_RES_NET_SRC:
2227 case COL_UNRES_NET_SRC:
2228 column_len = col_len = strlen(cf->cinfo.col_data[i]);
2229 if (column_len < 12)
2231 line_bufp = get_line_buf(buf_offset + column_len);
2232 put_spaces_string(line_bufp + buf_offset, cf->cinfo.col_data[i], col_len, column_len);
2238 case COL_DEF_DL_DST:
2239 case COL_RES_DL_DST:
2240 case COL_UNRES_DL_DST:
2241 case COL_DEF_NET_DST:
2242 case COL_RES_NET_DST:
2243 case COL_UNRES_NET_DST:
2244 column_len = col_len = strlen(cf->cinfo.col_data[i]);
2245 if (column_len < 12)
2247 line_bufp = get_line_buf(buf_offset + column_len);
2248 put_string_spaces(line_bufp + buf_offset, cf->cinfo.col_data[i], col_len, column_len);
2252 column_len = strlen(cf->cinfo.col_data[i]);
2253 line_bufp = get_line_buf(buf_offset + column_len);
2254 put_string(line_bufp + buf_offset, cf->cinfo.col_data[i], column_len);
2257 buf_offset += column_len;
2258 if (i != cf->cinfo.num_cols - 1) {
2260 * This isn't the last column, so we need to print a
2261 * separator between this column and the next.
2263 * If we printed a network source and are printing a
2264 * network destination of the same type next, separate
2265 * them with " -> "; if we printed a network destination
2266 * and are printing a network source of the same type
2267 * next, separate them with " <- "; otherwise separate them
2270 * We add enough space to the buffer for " <- " or " -> ",
2271 * even if we're only adding " ".
2273 line_bufp = get_line_buf(buf_offset + 4);
2274 switch (cf->cinfo.col_fmt[i]) {
2279 switch (cf->cinfo.col_fmt[i + 1]) {
2284 put_string(line_bufp + buf_offset, " -> ", 4);
2289 put_string(line_bufp + buf_offset, " ", 1);
2295 case COL_DEF_DL_SRC:
2296 case COL_RES_DL_SRC:
2297 case COL_UNRES_DL_SRC:
2298 switch (cf->cinfo.col_fmt[i + 1]) {
2300 case COL_DEF_DL_DST:
2301 case COL_RES_DL_DST:
2302 case COL_UNRES_DL_DST:
2303 put_string(line_bufp + buf_offset, " -> ", 4);
2308 put_string(line_bufp + buf_offset, " ", 1);
2314 case COL_DEF_NET_SRC:
2315 case COL_RES_NET_SRC:
2316 case COL_UNRES_NET_SRC:
2317 switch (cf->cinfo.col_fmt[i + 1]) {
2319 case COL_DEF_NET_DST:
2320 case COL_RES_NET_DST:
2321 case COL_UNRES_NET_DST:
2322 put_string(line_bufp + buf_offset, " -> ", 4);
2327 put_string(line_bufp + buf_offset, " ", 1);
2336 switch (cf->cinfo.col_fmt[i + 1]) {
2341 put_string(line_bufp + buf_offset, " <- ", 4);
2346 put_string(line_bufp + buf_offset, " ", 1);
2352 case COL_DEF_DL_DST:
2353 case COL_RES_DL_DST:
2354 case COL_UNRES_DL_DST:
2355 switch (cf->cinfo.col_fmt[i + 1]) {
2357 case COL_DEF_DL_SRC:
2358 case COL_RES_DL_SRC:
2359 case COL_UNRES_DL_SRC:
2360 put_string(line_bufp + buf_offset, " <- ", 4);
2365 put_string(line_bufp + buf_offset, " ", 1);
2371 case COL_DEF_NET_DST:
2372 case COL_RES_NET_DST:
2373 case COL_UNRES_NET_DST:
2374 switch (cf->cinfo.col_fmt[i + 1]) {
2376 case COL_DEF_NET_SRC:
2377 case COL_RES_NET_SRC:
2378 case COL_UNRES_NET_SRC:
2379 put_string(line_bufp + buf_offset, " <- ", 4);
2384 put_string(line_bufp + buf_offset, " ", 1);
2391 put_string(line_bufp + buf_offset, " ", 1);
2397 return print_line(print_stream, 0, line_bufp);
2401 print_packet(capture_file *cf, epan_dissect_t *edt)
2403 print_args_t print_args;
2405 if (print_summary || output_fields_has_cols(output_fields)) {
2406 /* Just fill in the columns. */
2407 epan_dissect_fill_in_columns(edt, FALSE, TRUE);
2409 if (print_summary) {
2410 /* Now print them. */
2411 switch (output_action) {
2414 if (!print_columns(cf))
2419 proto_tree_write_psml(edt, stdout);
2420 return !ferror(stdout);
2421 case WRITE_FIELDS: /*No non-verbose "fields" format */
2422 g_assert_not_reached();
2427 if (print_details) {
2428 /* Print the information in the protocol tree. */
2429 switch (output_action) {
2432 /* Only initialize the fields that are actually used in proto_tree_print.
2433 * This is particularly important for .range, as that's heap memory which
2434 * we would otherwise have to g_free().
2435 print_args.to_file = TRUE;
2436 print_args.format = print_format;
2437 print_args.print_summary = print_summary;
2438 print_args.print_formfeed = FALSE;
2439 packet_range_init(&print_args.range, &cfile);
2441 print_args.print_hex = print_hex;
2442 print_args.print_dissections = print_details ? print_dissections_expanded : print_dissections_none;
2444 if (!proto_tree_print(&print_args, edt, print_stream))
2447 if (!print_line(print_stream, 0, separator))
2453 proto_tree_write_pdml(edt, stdout);
2455 return !ferror(stdout);
2457 proto_tree_write_fields(output_fields, edt, &cf->cinfo, stdout);
2459 return !ferror(stdout);
2463 if (print_summary || print_details) {
2464 if (!print_line(print_stream, 0, ""))
2467 if (!print_hex_data(print_stream, edt))
2469 if (!print_line(print_stream, 0, separator))
2478 switch (output_action) {
2481 return print_finale(print_stream);
2485 write_pdml_finale(stdout);
2487 write_psml_finale(stdout);
2488 return !ferror(stdout);
2491 write_fields_finale(output_fields, stdout);
2492 return !ferror(stdout);
2495 g_assert_not_reached();
2501 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
2509 char err_msg[2048+1];
2512 fth = ftap_open_offline(fname, err, &err_info, perform_two_pass_analysis);
2516 wth = wtap_open_offline(fname, type, err, &err_info, perform_two_pass_analysis);
2521 /* The open succeeded. Fill in the information for this file. */
2523 /* Create new epan session for dissection. */
2524 epan_free(cf->epan);
2525 cf->epan = tfshark_epan_new(cf);
2528 cf->wth = (struct wtap*)fth; /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2532 cf->f_datalen = 0; /* not used, but set it anyway */
2534 /* Set the file name because we need it to set the follow stream filter.
2535 XXX - is that still true? We need it for other reasons, though,
2537 cf->filename = g_strdup(fname);
2539 /* Indicate whether it's a permanent or temporary file. */
2540 cf->is_tempfile = is_tempfile;
2542 /* No user changes yet. */
2543 cf->unsaved_changes = FALSE;
2545 cf->cd_t = ftap_file_type_subtype((struct ftap*)cf->wth); /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2547 cf->drops_known = FALSE;
2549 cf->snap = ftap_snapshot_length((struct ftap*)cf->wth); /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2550 if (cf->snap == 0) {
2551 /* Snapshot length not known. */
2552 cf->has_snap = FALSE;
2553 cf->snap = FTAP_MAX_RECORD_SIZE;
2555 cf->has_snap = TRUE;
2556 nstime_set_zero(&cf->elapsed_time);
2561 cf->state = FILE_READ_IN_PROGRESS;
2566 g_snprintf(err_msg, sizeof err_msg,
2567 cf_open_error_message(*err, err_info, FALSE, cf->cd_t), fname);
2568 cmdarg_err("%s", err_msg);
2573 show_print_file_io_error(int err)
2578 cmdarg_err("Not all the packets could be printed because there is "
2579 "no space left on the file system.");
2584 cmdarg_err("Not all the packets could be printed because you are "
2585 "too close to, or over your disk quota.");
2590 cmdarg_err("An error occurred while printing packets: %s.",
2597 cf_open_error_message(int err, gchar *err_info, gboolean for_writing,
2601 static char errmsg_errno[1024+1];
2604 /* Wiretap error. */
2607 case FTAP_ERR_NOT_REGULAR_FILE:
2608 errmsg = "The file \"%s\" is a \"special file\" or socket or other non-regular file.";
2611 case FTAP_ERR_RANDOM_OPEN_PIPE:
2612 /* Seen only when opening a capture file for reading. */
2613 errmsg = "The file \"%s\" is a pipe or FIFO; TFShark can't read pipe or FIFO files in two-pass mode.";
2616 case FTAP_ERR_FILE_UNKNOWN_FORMAT:
2617 /* Seen only when opening a capture file for reading. */
2618 errmsg = "The file \"%s\" isn't a capture file in a format TFShark understands.";
2621 case FTAP_ERR_UNSUPPORTED:
2622 /* Seen only when opening a capture file for reading. */
2623 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2624 "The file \"%%s\" isn't a capture file in a format TFShark understands.\n"
2627 errmsg = errmsg_errno;
2630 case FTAP_ERR_CANT_WRITE_TO_PIPE:
2631 /* Seen only when opening a capture file for writing. */
2632 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2633 "The file \"%%s\" is a pipe, and \"%s\" capture files can't be "
2634 "written to a pipe.", ftap_file_type_subtype_short_string(file_type));
2635 errmsg = errmsg_errno;
2638 case FTAP_ERR_UNSUPPORTED_FILE_TYPE:
2639 /* Seen only when opening a capture file for writing. */
2640 errmsg = "TFShark doesn't support writing capture files in that format.";
2643 case FTAP_ERR_UNSUPPORTED_ENCAP:
2645 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2646 "TFShark can't save this capture as a \"%s\" file.",
2647 ftap_file_type_subtype_short_string(file_type));
2649 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2650 "The file \"%%s\" is a capture for a network type that TFShark doesn't support.\n"
2654 errmsg = errmsg_errno;
2657 case FTAP_ERR_ENCAP_PER_RECORD_UNSUPPORTED:
2659 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2660 "TFShark can't save this capture as a \"%s\" file.",
2661 ftap_file_type_subtype_short_string(file_type));
2662 errmsg = errmsg_errno;
2664 errmsg = "The file \"%s\" is a capture for a network type that TFShark doesn't support.";
2667 case FTAP_ERR_BAD_FILE:
2668 /* Seen only when opening a capture file for reading. */
2669 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2670 "The file \"%%s\" appears to be damaged or corrupt.\n"
2673 errmsg = errmsg_errno;
2676 case FTAP_ERR_CANT_OPEN:
2678 errmsg = "The file \"%s\" could not be created for some unknown reason.";
2680 errmsg = "The file \"%s\" could not be opened for some unknown reason.";
2683 case FTAP_ERR_SHORT_READ:
2684 errmsg = "The file \"%s\" appears to have been cut short"
2685 " in the middle of a packet or other data.";
2688 case FTAP_ERR_SHORT_WRITE:
2689 errmsg = "A full header couldn't be written to the file \"%s\".";
2692 case FTAP_ERR_COMPRESSION_NOT_SUPPORTED:
2693 errmsg = "This file type cannot be written as a compressed file.";
2696 case FTAP_ERR_DECOMPRESS:
2697 /* Seen only when opening a capture file for reading. */
2698 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2699 "The compressed file \"%%s\" appears to be damaged or corrupt.\n"
2702 errmsg = errmsg_errno;
2706 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2707 "The file \"%%s\" could not be %s: %s.",
2708 for_writing ? "created" : "opened",
2709 ftap_strerror(err));
2710 errmsg = errmsg_errno;
2714 errmsg = file_open_error_message(err, for_writing);
2719 * Open/create errors are reported with an console message in TFShark.
2722 open_failure_message(const char *filename, int err, gboolean for_writing)
2724 fprintf(stderr, "tfshark: ");
2725 fprintf(stderr, file_open_error_message(err, for_writing), filename);
2726 fprintf(stderr, "\n");
2731 * General errors are reported with an console message in TFShark.
2734 failure_message(const char *msg_format, va_list ap)
2736 fprintf(stderr, "tfshark: ");
2737 vfprintf(stderr, msg_format, ap);
2738 fprintf(stderr, "\n");
2742 * Read errors are reported with an console message in TFShark.
2745 read_failure_message(const char *filename, int err)
2747 cmdarg_err("An error occurred while reading from the file \"%s\": %s.",
2748 filename, g_strerror(err));
2752 * Write errors are reported with an console message in TFShark.
2755 write_failure_message(const char *filename, int err)
2757 cmdarg_err("An error occurred while writing to the file \"%s\": %s.",
2758 filename, g_strerror(err));
2762 * Report an error in command-line arguments.
2765 cmdarg_err(const char *fmt, ...)
2770 failure_message(fmt, ap);
2775 * Report additional information for an error in command-line arguments.
2778 cmdarg_err_cont(const char *fmt, ...)
2783 vfprintf(stderr, fmt, ap);
2784 fprintf(stderr, "\n");
2790 * Editor modelines - http://www.wireshark.org/tools/modelines.html
2795 * indent-tabs-mode: nil
2798 * vi: set shiftwidth=2 tabstop=8 expandtab:
2799 * :indentSize=2:tabSize=8:noTabs=true: