2 * Routines for printing packet analysis trees.
4 * Gilbert Ramirez <gram@alumni.rice.edu>
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * SPDX-License-Identifier: GPL-2.0-or-later
18 #include <epan/packet.h>
19 #include <epan/epan.h>
20 #include <epan/epan_dissect.h>
21 #include <epan/to_str.h>
22 #include <epan/to_str-int.h>
23 #include <epan/expert.h>
24 #include <epan/column.h>
25 #include <epan/column-info.h>
26 #include <epan/color_filters.h>
27 #include <epan/prefs.h>
28 #include <epan/print.h>
29 #include <epan/charsets.h>
30 #include <wsutil/json_dumper.h>
31 #include <wsutil/filesystem.h>
32 #include <version_info.h>
33 #include <wsutil/utf8_entities.h>
34 #include <ftypes/ftypes-int.h>
36 #define PDML_VERSION "0"
37 #define PSML_VERSION "0"
41 print_stream_t *stream;
44 print_dissections_e print_dissections;
45 gboolean print_hex_for_data;
46 packet_char_enc encoding;
47 GHashTable *output_only_tables; /* output only these protocols */
55 pf_flags filter_flags;
61 pf_flags filter_flags;
64 proto_node_children_grouper_func node_children_grouper;
69 output_fields_t *fields;
73 struct _output_fields {
75 gboolean print_header;
80 GHashTable *field_indicies;
81 GPtrArray **field_values;
83 gboolean includes_col_fields;
86 static gchar *get_field_hex_value(GSList *src_list, field_info *fi);
87 static void proto_tree_print_node(proto_node *node, gpointer data);
88 static void proto_tree_write_node_pdml(proto_node *node, gpointer data);
89 static void proto_tree_write_node_ek(proto_node *node, write_json_data *data);
90 static const guint8 *get_field_data(GSList *src_list, field_info *fi);
91 static void pdml_write_field_hex_value(write_pdml_data *pdata, field_info *fi);
92 static void json_write_field_hex_value(write_json_data *pdata, field_info *fi);
93 static gboolean print_hex_data_buffer(print_stream_t *stream, const guchar *cp,
94 guint length, packet_char_enc encoding);
95 static void write_specified_fields(fields_format format,
96 output_fields_t *fields,
97 epan_dissect_t *edt, column_info *cinfo,
100 static void print_escaped_xml(FILE *fh, const char *unescaped_string);
101 static void print_escaped_csv(FILE *fh, const char *unescaped_string);
103 typedef void (*proto_node_value_writer)(proto_node *, write_json_data *);
104 static void write_json_index(json_dumper *dumper, epan_dissect_t *edt);
105 static void write_json_proto_node_list(GSList *proto_node_list_head, write_json_data *data);
106 static void write_json_proto_node(GSList *node_values_head,
108 proto_node_value_writer value_writer,
109 write_json_data *data);
110 static void write_json_proto_node_value_list(GSList *node_values_head,
111 proto_node_value_writer value_writer,
112 write_json_data *data);
113 static void write_json_proto_node_filtered(proto_node *node, write_json_data *data);
114 static void write_json_proto_node_hex_dump(proto_node *node, write_json_data *data);
115 static void write_json_proto_node_children(proto_node *node, write_json_data *data);
116 static void write_json_proto_node_value(proto_node *node, write_json_data *data);
117 static void write_json_proto_node_no_value(proto_node *node, write_json_data *data);
118 static const char *proto_node_to_json_key(proto_node *node);
120 static void print_pdml_geninfo(epan_dissect_t *edt, FILE *fh);
121 static void write_ek_summary(column_info *cinfo, write_json_data *pdata);
123 static void proto_tree_get_node_field_values(proto_node *node, gpointer data);
125 /* Cache the protocols and field handles that the print functionality needs
126 This helps break explicit dependency on the dissectors. */
127 static int proto_data = -1;
128 static int proto_frame = -1;
130 void print_cache_field_handles(void)
132 proto_data = proto_get_id_by_short_name("Data");
133 proto_frame = proto_get_id_by_short_name("Frame");
137 proto_tree_print(print_dissections_e print_dissections, gboolean print_hex,
138 epan_dissect_t *edt, GHashTable *output_only_tables,
139 print_stream_t *stream)
143 /* Create the output */
145 data.stream = stream;
147 data.src_list = edt->pi.data_src;
148 data.encoding = (packet_char_enc)edt->pi.fd->encoding;
149 data.print_dissections = print_dissections;
150 /* If we're printing the entire packet in hex, don't
151 print uninterpreted data fields in hex as well. */
152 data.print_hex_for_data = !print_hex;
153 data.output_only_tables = output_only_tables;
155 proto_tree_children_foreach(edt->tree, proto_tree_print_node, &data);
159 /* Print a tree's data, and any child nodes. */
161 proto_tree_print_node(proto_node *node, gpointer data)
163 field_info *fi = PNODE_FINFO(node);
164 print_data *pdata = (print_data*) data;
166 gchar label_str[ITEM_LABEL_LENGTH];
169 /* dissection with an invisible proto tree? */
172 /* Don't print invisible entries. */
173 if (PROTO_ITEM_IS_HIDDEN(node) && (prefs.display_hidden_proto_items == FALSE))
176 /* Give up if we've already gotten an error. */
180 /* was a free format label produced? */
182 label_ptr = fi->rep->representation;
184 else { /* no, make a generic label */
185 label_ptr = label_str;
186 proto_item_fill_label(fi, label_str);
189 if (PROTO_ITEM_IS_GENERATED(node))
190 label_ptr = g_strconcat("[", label_ptr, "]", NULL);
192 pdata->success = print_line(pdata->stream, pdata->level, label_ptr);
194 if (PROTO_ITEM_IS_GENERATED(node))
201 * If -O is specified, only display the protocols which are in the
202 * lookup table. Only check on the first level: once we start printing
203 * a tree, print the rest of the subtree. Otherwise we won't print
204 * subitems whose abbreviation doesn't match the protocol--for example
205 * text items (whose abbreviation is simply "text").
207 if ((pdata->output_only_tables != NULL) && (pdata->level == 0)
208 && (g_hash_table_lookup(pdata->output_only_tables, fi->hfinfo->abbrev) == NULL)) {
212 /* If it's uninterpreted data, dump it (unless our caller will
213 be printing the entire packet in hex). */
214 if ((fi->hfinfo->id == proto_data) && (pdata->print_hex_for_data)) {
216 * Find the data for this field.
218 pd = get_field_data(pdata->src_list, fi);
220 if (!print_line(pdata->stream, 0, "")) {
221 pdata->success = FALSE;
224 if (!print_hex_data_buffer(pdata->stream, pd,
225 fi->length, pdata->encoding)) {
226 pdata->success = FALSE;
232 /* If we're printing all levels, or if this node is one with a
233 subtree and its subtree is expanded, recurse into the subtree,
235 g_assert((fi->tree_type >= -1) && (fi->tree_type < num_tree_types));
236 if ((pdata->print_dissections == print_dissections_expanded) ||
237 ((pdata->print_dissections == print_dissections_as_displayed) &&
238 (fi->tree_type >= 0) && tree_expanded(fi->tree_type))) {
239 if (node->first_child != NULL) {
241 proto_tree_children_foreach(node,
242 proto_tree_print_node, pdata);
250 #define PDML2HTML_XSL "pdml2html.xsl"
252 write_pdml_preamble(FILE *fh, const gchar *filename)
254 time_t t = time(NULL);
255 struct tm * timeinfo;
259 /* Create the output */
260 timeinfo = localtime(&t);
261 if (timeinfo != NULL) {
262 fmt_ts = asctime(timeinfo);
263 fmt_ts[strlen(fmt_ts)-1] = 0; /* overwrite \n */
266 ts = "Not representable";
268 fprintf(fh, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
269 fprintf(fh, "<?xml-stylesheet type=\"text/xsl\" href=\"" PDML2HTML_XSL "\"?>\n");
270 fprintf(fh, "<!-- You can find " PDML2HTML_XSL " in %s or at https://code.wireshark.org/review/gitweb?p=wireshark.git;a=blob_plain;f=" PDML2HTML_XSL ". -->\n", get_datafile_dir());
271 fprintf(fh, "<pdml version=\"" PDML_VERSION "\" creator=\"%s/%s\" time=\"%s\" capture_file=\"", PACKAGE, VERSION, ts);
273 /* \todo filename should be converted to UTF-8. */
274 print_escaped_xml(fh, filename);
276 fprintf(fh, "\">\n");
279 /* Check if the str match the protocolfilter. json_filter is space
280 delimited string and str need to exact-match to one of the value. */
281 static gboolean check_protocolfilter(gchar **protocolfilter, const char *str)
283 gboolean res = FALSE;
286 if (str == NULL || protocolfilter == NULL) {
290 for (ptr = protocolfilter; *ptr; ptr++) {
291 if (strcmp(*ptr, str) == 0) {
301 write_pdml_proto_tree(output_fields_t* fields, gchar **protocolfilter, pf_flags protocolfilter_flags, epan_dissect_t *edt, column_info *cinfo, FILE *fh, gboolean use_color)
303 write_pdml_data data;
304 const color_filter_t *cfp;
309 cfp = edt->pi.fd->color_filter;
311 /* Create the output */
312 if (use_color && (cfp != NULL)) {
313 fprintf(fh, "<packet foreground='#%06x' background='#%06x'>\n",
314 color_t_to_rgb(&cfp->fg_color),
315 color_t_to_rgb(&cfp->bg_color));
318 fprintf(fh, "<packet>\n");
321 /* Print a "geninfo" protocol as required by PDML */
322 print_pdml_geninfo(edt, fh);
324 if (fields == NULL || fields->fields == NULL) {
325 /* Write out all fields */
328 data.src_list = edt->pi.data_src;
329 data.filter = protocolfilter;
330 data.filter_flags = protocolfilter_flags;
332 proto_tree_children_foreach(edt->tree, proto_tree_write_node_pdml,
335 /* Write out specified fields */
336 write_specified_fields(FORMAT_XML, fields, edt, cinfo, fh, NULL);
339 fprintf(fh, "</packet>\n\n");
343 write_ek_proto_tree(output_fields_t* fields,
344 gboolean print_summary, gboolean print_hex,
345 gchar **protocolfilter,
346 pf_flags protocolfilter_flags, epan_dissect_t *edt,
353 write_json_data data;
355 json_dumper dumper = {
357 .flags = JSON_DUMPER_DOT_TO_UNDERSCORE
360 data.dumper = &dumper;
362 json_dumper_begin_object(&dumper);
363 json_dumper_set_member_name(&dumper, "index");
364 json_dumper_begin_object(&dumper);
365 write_json_index(&dumper, edt);
366 json_dumper_set_member_name(&dumper, "_type");
367 json_dumper_value_string(&dumper, "pcap_file");
368 json_dumper_end_object(&dumper);
369 json_dumper_end_object(&dumper);
370 json_dumper_finish(&dumper);
371 json_dumper_begin_object(&dumper);
373 /* Timestamp added for time indexing in Elasticsearch */
374 json_dumper_set_member_name(&dumper, "timestamp");
375 json_dumper_value_anyf(&dumper, "\"%" G_GUINT64_FORMAT "%03d\"", (guint64)edt->pi.abs_ts.secs, edt->pi.abs_ts.nsecs/1000000);
378 write_ek_summary(edt->pi.cinfo, &data);
381 json_dumper_set_member_name(&dumper, "layers");
382 json_dumper_begin_object(&dumper);
384 if (fields == NULL || fields->fields == NULL) {
385 /* Write out all fields */
386 data.src_list = edt->pi.data_src;
387 data.filter = protocolfilter;
388 data.filter_flags = protocolfilter_flags;
389 data.print_hex = print_hex;
390 proto_tree_write_node_ek(edt->tree, &data);
392 /* Write out specified fields */
393 write_specified_fields(FORMAT_EK, fields, edt, cinfo, fh, data.dumper);
396 json_dumper_end_object(&dumper);
398 json_dumper_end_object(&dumper);
399 json_dumper_finish(&dumper);
403 write_fields_proto_tree(output_fields_t* fields, epan_dissect_t *edt, column_info *cinfo, FILE *fh)
408 /* Create the output */
409 write_specified_fields(FORMAT_CSV, fields, edt, cinfo, fh, NULL);
412 /* Indent to the correct level */
413 static void print_indent(int level, FILE *fh)
419 for (i = 0; i < level; i++) {
424 /* Write out a tree's data, and any child nodes, as PDML */
426 proto_tree_write_node_pdml(proto_node *node, gpointer data)
428 field_info *fi = PNODE_FINFO(node);
429 write_pdml_data *pdata = (write_pdml_data*) data;
430 const gchar *label_ptr;
431 gchar label_str[ITEM_LABEL_LENGTH];
432 char *dfilter_string;
433 gboolean wrap_in_fake_protocol;
435 /* dissection with an invisible proto tree? */
438 /* Will wrap up top-level field items inside a fake protocol wrapper to
439 preserve the PDML schema */
440 wrap_in_fake_protocol =
441 (((fi->hfinfo->type != FT_PROTOCOL) ||
442 (fi->hfinfo->id == proto_data)) &&
443 (pdata->level == 0));
445 print_indent(pdata->level + 1, pdata->fh);
447 if (wrap_in_fake_protocol) {
448 /* Open fake protocol wrapper */
449 fputs("<proto name=\"fake-field-wrapper\">\n", pdata->fh);
452 print_indent(pdata->level + 1, pdata->fh);
455 /* Text label. It's printed as a field with no name. */
456 if (fi->hfinfo->id == hf_text_only) {
459 label_ptr = fi->rep->representation;
465 /* Show empty name since it is a required field */
466 fputs("<field name=\"", pdata->fh);
467 fputs("\" show=\"", pdata->fh);
468 print_escaped_xml(pdata->fh, label_ptr);
470 fprintf(pdata->fh, "\" size=\"%d", fi->length);
471 if (node->parent && node->parent->finfo && (fi->start < node->parent->finfo->start)) {
472 fprintf(pdata->fh, "\" pos=\"%d", node->parent->finfo->start + fi->start);
474 fprintf(pdata->fh, "\" pos=\"%d", fi->start);
477 if (fi->length > 0) {
478 fputs("\" value=\"", pdata->fh);
479 pdml_write_field_hex_value(pdata, fi);
482 if (node->first_child != NULL) {
483 fputs("\">\n", pdata->fh);
486 fputs("\"/>\n", pdata->fh);
490 /* Uninterpreted data, i.e., the "Data" protocol, is
491 * printed as a field instead of a protocol. */
492 else if (fi->hfinfo->id == proto_data) {
493 /* Write out field with data */
494 fputs("<field name=\"data\" value=\"", pdata->fh);
495 pdml_write_field_hex_value(pdata, fi);
496 fputs("\">\n", pdata->fh);
498 /* Normal protocols and fields */
500 if ((fi->hfinfo->type == FT_PROTOCOL) && (fi->hfinfo->id != proto_expert)) {
501 fputs("<proto name=\"", pdata->fh);
504 fputs("<field name=\"", pdata->fh);
506 print_escaped_xml(pdata->fh, fi->hfinfo->abbrev);
510 * https://wayback.archive.org/web/20150330045501/http://www.nbee.org/doku.php?id=netpdl:pdml_specification
512 * the show fields contains things in 'human readable' format
513 * showname: contains only the name of the field
514 * show: contains only the data of the field
515 * showdtl: contains additional details of the field data
516 * showmap: contains mappings of the field data (e.g. the hostname to an IP address)
518 * XXX - the showname shouldn't contain the field data itself
519 * (like it's contained in the fi->rep->representation).
520 * Unfortunately, we don't have the field data representation for
521 * all fields, so this isn't currently possible */
522 fputs("\" showname=\"", pdata->fh);
523 print_escaped_xml(pdata->fh, fi->hfinfo->name);
527 fputs("\" showname=\"", pdata->fh);
528 print_escaped_xml(pdata->fh, fi->rep->representation);
531 label_ptr = label_str;
532 proto_item_fill_label(fi, label_str);
533 fputs("\" showname=\"", pdata->fh);
534 print_escaped_xml(pdata->fh, label_ptr);
537 if (PROTO_ITEM_IS_HIDDEN(node) && (prefs.display_hidden_proto_items == FALSE))
538 fprintf(pdata->fh, "\" hide=\"yes");
540 fprintf(pdata->fh, "\" size=\"%d", fi->length);
541 if (node->parent && node->parent->finfo && (fi->start < node->parent->finfo->start)) {
542 fprintf(pdata->fh, "\" pos=\"%d", node->parent->finfo->start + fi->start);
544 fprintf(pdata->fh, "\" pos=\"%d", fi->start);
546 /* fprintf(pdata->fh, "\" id=\"%d", fi->hfinfo->id);*/
548 /* show, value, and unmaskedvalue attributes */
549 switch (fi->hfinfo->type)
554 fputs("\" show=\"\" value=\"", pdata->fh);
557 dfilter_string = fvalue_to_string_repr(NULL, &fi->value, FTREPR_DISPLAY, fi->hfinfo->display);
558 if (dfilter_string != NULL) {
560 fputs("\" show=\"", pdata->fh);
561 print_escaped_xml(pdata->fh, dfilter_string);
563 wmem_free(NULL, dfilter_string);
566 * XXX - should we omit "value" for any fields?
567 * What should we do for fields whose length is 0?
568 * They might come from a pseudo-header or from
569 * the capture header (e.g., time stamps), or
570 * they might be generated fields.
572 if (fi->length > 0) {
573 fputs("\" value=\"", pdata->fh);
575 if (fi->hfinfo->bitmask!=0) {
576 switch (fi->value.ftype->ftype) {
581 fprintf(pdata->fh, "%X", (guint) fvalue_get_sinteger(&fi->value));
588 fprintf(pdata->fh, "%X", fvalue_get_uinteger(&fi->value));
594 fprintf(pdata->fh, "%" G_GINT64_MODIFIER "X", fvalue_get_sinteger64(&fi->value));
601 fprintf(pdata->fh, "%" G_GINT64_MODIFIER "X", fvalue_get_uinteger64(&fi->value));
604 g_assert_not_reached();
606 fputs("\" unmaskedvalue=\"", pdata->fh);
607 pdml_write_field_hex_value(pdata, fi);
610 pdml_write_field_hex_value(pdata, fi);
615 if (node->first_child != NULL) {
616 fputs("\">\n", pdata->fh);
618 else if (fi->hfinfo->id == proto_data) {
619 fputs("\">\n", pdata->fh);
622 fputs("\"/>\n", pdata->fh);
626 /* We print some levels for PDML. Recurse here. */
627 if (node->first_child != NULL) {
628 if (pdata->filter == NULL || check_protocolfilter(pdata->filter, fi->hfinfo->abbrev)) {
629 gchar **_filter = NULL;
630 /* Remove protocol filter for children, if children should be included */
631 if ((pdata->filter_flags&PF_INCLUDE_CHILDREN) == PF_INCLUDE_CHILDREN) {
632 _filter = pdata->filter;
633 pdata->filter = NULL;
637 proto_tree_children_foreach(node,
638 proto_tree_write_node_pdml, pdata);
641 /* Put protocol filter back */
642 if ((pdata->filter_flags&PF_INCLUDE_CHILDREN) == PF_INCLUDE_CHILDREN) {
643 pdata->filter = _filter;
646 print_indent(pdata->level + 2, pdata->fh);
648 /* print dummy field */
649 fputs("<field name=\"filtered\" value=\"", pdata->fh);
650 print_escaped_xml(pdata->fh, fi->hfinfo->abbrev);
651 fputs("\" />\n", pdata->fh);
655 /* Take back the extra level we added for fake wrapper protocol */
656 if (wrap_in_fake_protocol) {
660 if (node->first_child != NULL) {
661 print_indent(pdata->level + 1, pdata->fh);
663 /* Close off current element */
664 /* Data and expert "protocols" use simple tags */
665 if ((fi->hfinfo->id != proto_data) && (fi->hfinfo->id != proto_expert)) {
666 if (fi->hfinfo->type == FT_PROTOCOL) {
667 fputs("</proto>\n", pdata->fh);
670 fputs("</field>\n", pdata->fh);
673 fputs("</field>\n", pdata->fh);
677 /* Close off fake wrapper protocol */
678 if (wrap_in_fake_protocol) {
679 print_indent(pdata->level + 1, pdata->fh);
680 fputs("</proto>\n", pdata->fh);
685 write_json_preamble(FILE *fh)
687 json_dumper dumper = {
689 .flags = JSON_DUMPER_FLAGS_PRETTY_PRINT
691 json_dumper_begin_array(&dumper);
696 write_json_finale(json_dumper *dumper)
698 json_dumper_end_array(dumper);
699 json_dumper_finish(dumper);
703 write_json_index(json_dumper *dumper, epan_dissect_t *edt)
706 struct tm * timeinfo;
709 timeinfo = localtime(&edt->pi.abs_ts.secs);
710 if (timeinfo != NULL) {
711 strftime(ts, sizeof ts, "%Y-%m-%d", timeinfo);
713 g_strlcpy(ts, "XXXX-XX-XX", sizeof ts); /* XXX - better way of saying "Not representable"? */
715 json_dumper_set_member_name(dumper, "_index");
716 str = g_strdup_printf("packets-%s", ts);
717 json_dumper_value_string(dumper, str);
722 write_json_proto_tree(output_fields_t* fields,
723 print_dissections_e print_dissections,
724 gboolean print_hex, gchar **protocolfilter,
725 pf_flags protocolfilter_flags, epan_dissect_t *edt,
727 proto_node_children_grouper_func node_children_grouper,
730 write_json_data data;
732 data.dumper = dumper;
734 json_dumper_begin_object(dumper);
735 write_json_index(dumper, edt);
736 json_dumper_set_member_name(dumper, "_type");
737 json_dumper_value_string(dumper, "pcap_file");
738 json_dumper_set_member_name(dumper, "_score");
739 json_dumper_value_string(dumper, NULL);
740 json_dumper_set_member_name(dumper, "_source");
741 json_dumper_begin_object(dumper);
742 json_dumper_set_member_name(dumper, "layers");
744 if (fields == NULL || fields->fields == NULL) {
745 /* Write out all fields */
746 data.src_list = edt->pi.data_src;
747 data.filter = protocolfilter;
748 data.filter_flags = protocolfilter_flags;
749 data.print_hex = print_hex;
750 data.print_text = TRUE;
751 if (print_dissections == print_dissections_none) {
752 data.print_text = FALSE;
754 data.node_children_grouper = node_children_grouper;
756 write_json_proto_node_children(edt->tree, &data);
758 write_specified_fields(FORMAT_JSON, fields, edt, cinfo, NULL, dumper);
761 json_dumper_end_object(dumper);
762 json_dumper_end_object(dumper);
766 * Write a json object containing a list of key:value pairs where each key:value pair corresponds to a different json
767 * key and its associated nodes in the proto_tree.
768 * @param proto_node_list_head A 2-dimensional list containing a list of values for each different node json key. The
769 * elements themselves are a linked list of values associated with the same json key.
770 * @param data json writing metadata
773 write_json_proto_node_list(GSList *proto_node_list_head, write_json_data *pdata)
775 GSList *current_node = proto_node_list_head;
777 json_dumper_begin_object(pdata->dumper);
779 // Loop over each list of nodes (differentiated by json key) and write the associated json key:value pair in the
781 while (current_node != NULL) {
782 // Get the list of values for the current json key.
783 GSList *node_values_list = (GSList *) current_node->data;
785 // Retrieve the json key from the first value.
786 proto_node *first_value = (proto_node *) node_values_list->data;
787 const char *json_key = proto_node_to_json_key(first_value);
788 // Check if the current json key is filtered from the output with the "-j" cli option.
789 gboolean is_filtered = pdata->filter != NULL && !check_protocolfilter(pdata->filter, json_key);
791 field_info *fi = first_value->finfo;
792 char *value_string_repr = fvalue_to_string_repr(NULL, &fi->value, FTREPR_DISPLAY, fi->hfinfo->display);
794 // We assume all values of a json key have roughly the same layout. Thus we can use the first value to derive
795 // attributes of all the values.
796 gboolean has_value = value_string_repr != NULL;
797 gboolean has_children = first_value->first_child != NULL;
798 gboolean is_pseudo_text_field = fi->hfinfo->id == 0;
800 wmem_free(NULL, value_string_repr); // fvalue_to_string_repr returns allocated buffer
802 // "-x" command line option. A "_raw" suffix is added to the json key so the textual value can be printed
803 // with the original json key. If both hex and text writing are enabled the raw information of fields whose
804 // length is equal to 0 is not written to the output. If the field is a special text pseudo field no raw
805 // information is written either.
806 if (pdata->print_hex && (!pdata->print_text || fi->length > 0) && !is_pseudo_text_field) {
807 write_json_proto_node(node_values_list, "_raw", write_json_proto_node_hex_dump, pdata);
810 if (pdata->print_text && has_value) {
811 write_json_proto_node(node_values_list, "", write_json_proto_node_value, pdata);
815 // If a node has both a value and a set of children we print the value and the children in separate
816 // key:value pairs. These can't have the same key so whenever a value is already printed with the node
817 // json key we print the children with the same key with a "_tree" suffix added.
818 char *suffix = has_value ? "_tree": "";
821 write_json_proto_node(node_values_list, suffix, write_json_proto_node_filtered, pdata);
823 // Remove protocol filter for children, if children should be included. This functionality is enabled
824 // with the "-J" command line option. We save the filter so it can be reenabled when we are done with
825 // the current key:value pair.
826 gchar **_filter = NULL;
827 if ((pdata->filter_flags&PF_INCLUDE_CHILDREN) == PF_INCLUDE_CHILDREN) {
828 _filter = pdata->filter;
829 pdata->filter = NULL;
832 write_json_proto_node(node_values_list, suffix, write_json_proto_node_children, pdata);
834 // Put protocol filter back
835 if ((pdata->filter_flags&PF_INCLUDE_CHILDREN) == PF_INCLUDE_CHILDREN) {
836 pdata->filter = _filter;
841 if (!has_value && !has_children && (pdata->print_text || (pdata->print_hex && is_pseudo_text_field))) {
842 write_json_proto_node(node_values_list, "", write_json_proto_node_no_value, pdata);
845 current_node = current_node->next;
847 json_dumper_end_object(pdata->dumper);
851 * Writes a single node as a key:value pair. The value_writer param can be used to specify how the node's value should
853 * @param node_values_head Linked list containing all nodes associated with the same json key in this object.
854 * @param suffix Suffix that should be added to the json key.
855 * @param value_writer A function which writes the actual values of the node json key.
856 * @param data json writing metadata
859 write_json_proto_node(GSList *node_values_head,
861 proto_node_value_writer value_writer,
862 write_json_data *pdata)
864 // Retrieve json key from first value.
865 proto_node *first_value = (proto_node *) node_values_head->data;
866 const char *json_key = proto_node_to_json_key(first_value);
867 gchar* json_key_suffix = g_strdup_printf("%s%s", json_key, suffix);
868 json_dumper_set_member_name(pdata->dumper, json_key_suffix);
869 g_free(json_key_suffix);
870 write_json_proto_node_value_list(node_values_head, value_writer, pdata);
874 * Writes a list of values of a single json key. If multiple values are passed they are wrapped in a json array.
875 * @param node_values_head Linked list containing all values that should be written.
876 * @param value_writer Function which writes the separate values.
877 * @param data json writing metadata
880 write_json_proto_node_value_list(GSList *node_values_head, proto_node_value_writer value_writer, write_json_data *pdata)
882 GSList *current_value = node_values_head;
884 // Write directly if only a single value is passed. Wrap in json array otherwise.
885 if (current_value->next == NULL) {
886 value_writer((proto_node *) current_value->data, pdata);
888 json_dumper_begin_array(pdata->dumper);
890 while (current_value != NULL) {
891 value_writer((proto_node *) current_value->data, pdata);
892 current_value = current_value->next;
894 json_dumper_end_array(pdata->dumper);
899 * Writes the value for a node that's filtered from the output.
902 write_json_proto_node_filtered(proto_node *node, write_json_data *pdata)
904 const char *json_key = proto_node_to_json_key(node);
906 json_dumper_begin_object(pdata->dumper);
907 json_dumper_set_member_name(pdata->dumper, "filtered");
908 json_dumper_value_string(pdata->dumper, json_key);
909 json_dumper_end_object(pdata->dumper);
913 * Writes the hex dump of a node. A json array is written containing the hex dump, position, length, bitmask and type of
917 write_json_proto_node_hex_dump(proto_node *node, write_json_data *pdata)
919 field_info *fi = node->finfo;
921 json_dumper_begin_array(pdata->dumper);
923 if (fi->hfinfo->bitmask!=0) {
924 switch (fi->value.ftype->ftype) {
929 json_dumper_value_anyf(pdata->dumper, "\"%X\"", (guint) fvalue_get_sinteger(&fi->value));
936 json_dumper_value_anyf(pdata->dumper, "\"%X\"", fvalue_get_uinteger(&fi->value));
942 json_dumper_value_anyf(pdata->dumper, "\"%" G_GINT64_MODIFIER "X\"", fvalue_get_sinteger64(&fi->value));
949 json_dumper_value_anyf(pdata->dumper, "\"%" G_GINT64_MODIFIER "X\"", fvalue_get_uinteger64(&fi->value));
952 g_assert_not_reached();
955 json_write_field_hex_value(pdata, fi);
958 /* Dump raw hex-encoded dissected information including position, length, bitmask, type */
959 json_dumper_value_anyf(pdata->dumper, "%" G_GINT32_MODIFIER "d", fi->start);
960 json_dumper_value_anyf(pdata->dumper, "%" G_GINT32_MODIFIER "d", fi->length);
961 json_dumper_value_anyf(pdata->dumper, "%" G_GUINT64_FORMAT, fi->hfinfo->bitmask);
962 json_dumper_value_anyf(pdata->dumper, "%" G_GINT32_MODIFIER "d", (gint32)fi->value.ftype->ftype);
964 json_dumper_end_array(pdata->dumper);
968 * Writes the children of a node. Calls write_json_proto_node_list internally which recursively writes children of nodes
972 write_json_proto_node_children(proto_node *node, write_json_data *data)
974 GSList *grouped_children_list = data->node_children_grouper(node);
975 write_json_proto_node_list(grouped_children_list, data);
976 g_slist_free_full(grouped_children_list, (GDestroyNotify) g_slist_free);
980 * Writes the value of a node to the output.
983 write_json_proto_node_value(proto_node *node, write_json_data *pdata)
985 field_info *fi = node->finfo;
986 // Get the actual value of the node as a string.
987 char *value_string_repr = fvalue_to_string_repr(NULL, &fi->value, FTREPR_DISPLAY, fi->hfinfo->display);
989 json_dumper_value_string(pdata->dumper, value_string_repr);
991 wmem_free(NULL, value_string_repr);
995 * Write the value for a node that has no value and no children. This is the empty string for all nodes except those of
996 * type FT_PROTOCOL for which the full name is written instead.
999 write_json_proto_node_no_value(proto_node *node, write_json_data *pdata)
1001 field_info *fi = node->finfo;
1003 if (fi->hfinfo->type == FT_PROTOCOL) {
1005 json_dumper_value_string(pdata->dumper, fi->rep->representation);
1007 gchar label_str[ITEM_LABEL_LENGTH];
1008 proto_item_fill_label(fi, label_str);
1009 json_dumper_value_string(pdata->dumper, label_str);
1012 json_dumper_value_string(pdata->dumper, "");
1017 * Groups each child of the node separately.
1018 * @return Linked list where each element is another linked list containing a single node.
1021 proto_node_group_children_by_unique(proto_node *node) {
1022 GSList *unique_nodes_list = NULL;
1023 proto_node *current_child = node->first_child;
1025 while (current_child != NULL) {
1026 GSList *unique_node = g_slist_prepend(NULL, current_child);
1027 unique_nodes_list = g_slist_prepend(unique_nodes_list, unique_node);
1028 current_child = current_child->next;
1031 return g_slist_reverse(unique_nodes_list);
1035 * Groups the children of a node by their json key. Children are put in the same group if they have the same json key.
1036 * @return Linked list where each element is another linked list of nodes associated with the same json key.
1039 proto_node_group_children_by_json_key(proto_node *node)
1042 * For each different json key we store a linked list of values corresponding to that json key. These lists are kept
1043 * in both a linked list and a hashmap. The hashmap is used to quickly retrieve the values of a json key. The linked
1044 * list is used to preserve the ordering of keys as they are encountered which is not guaranteed when only using a
1047 GSList *same_key_nodes_list = NULL;
1048 GHashTable *lookup_by_json_key = g_hash_table_new(g_str_hash, g_str_equal);
1049 proto_node *current_child = node->first_child;
1052 * For each child of the node get the key and get the list of values already associated with that key from the
1053 * hashmap. If no list exist yet for that key create a new one and add it to both the linked list and hashmap. If a
1054 * list already exists add the node to that list.
1056 while (current_child != NULL) {
1057 char *json_key = (char *) proto_node_to_json_key(current_child);
1058 GSList *json_key_nodes = (GSList *) g_hash_table_lookup(lookup_by_json_key, json_key);
1060 if (json_key_nodes == NULL) {
1061 json_key_nodes = g_slist_append(json_key_nodes, current_child);
1062 // Prepending in single linked list is O(1), appending is O(n). Better to prepend here and reverse at the
1063 // end than potentially looping to the end of the linked list for each child.
1064 same_key_nodes_list = g_slist_prepend(same_key_nodes_list, json_key_nodes);
1065 g_hash_table_insert(lookup_by_json_key, json_key, json_key_nodes);
1067 // Store and insert value again to circumvent unused_variable warning.
1068 // Append in this case since most value lists will only have a single value.
1069 json_key_nodes = g_slist_append(json_key_nodes, current_child);
1070 g_hash_table_insert(lookup_by_json_key, json_key, json_key_nodes);
1073 current_child = current_child->next;
1076 // Hash table is not needed anymore since the linked list with the correct ordering is returned.
1077 g_hash_table_destroy(lookup_by_json_key);
1079 return g_slist_reverse(same_key_nodes_list);
1083 * Returns the json key of a node. Tries to use the node's abbreviated name. If the abbreviated name is not available
1084 * the representation is used instead.
1087 proto_node_to_json_key(proto_node *node)
1089 const char *json_key;
1090 // Check if node has abbreviated name.
1091 if (node->finfo->hfinfo->id != hf_text_only) {
1092 json_key = node->finfo->hfinfo->abbrev;
1093 } else if (node->finfo->rep != NULL) {
1094 json_key = node->finfo->rep->representation;
1103 ek_check_protocolfilter(gchar **protocolfilter, const char *str)
1105 gchar *str_escaped = NULL;
1108 /* to to thread the '.' and '_' equally. The '.' is replace by print_escaped_ek for '_' */
1109 if (str != NULL && strlen(str) > 0) {
1110 str_escaped = g_strdup(str);
1113 while (str_escaped[i] != '\0') {
1114 if (str_escaped[i] == '.') {
1115 str_escaped[i] = '_';
1121 return check_protocolfilter(protocolfilter, str)
1122 || check_protocolfilter(protocolfilter, str_escaped);
1126 * Finds a node's descendants to be printed as EK/JSON attributes.
1129 write_ek_summary(column_info *cinfo, write_json_data* pdata)
1133 for (i = 0; i < cinfo->num_cols; i++) {
1134 if (!get_column_visible(i))
1136 json_dumper_set_member_name(pdata->dumper, g_ascii_strdown(cinfo->columns[i].col_title, -1));
1137 json_dumper_value_string(pdata->dumper, cinfo->columns[i].col_data);
1141 /* Write out a tree's data, and any child nodes, as JSON for EK */
1143 ek_fill_attr(proto_node *node, GSList **attr_list, GHashTable *attr_table, write_json_data *pdata)
1145 field_info *fi = NULL;
1146 field_info *fi_parent = NULL;
1147 gchar *node_name = NULL;
1148 GSList *attr_instances = NULL;
1150 proto_node *current_node = node->first_child;
1151 while (current_node != NULL) {
1152 fi = PNODE_FINFO(current_node);
1153 fi_parent = PNODE_FINFO(current_node->parent);
1155 /* dissection with an invisible proto tree? */
1158 if (fi_parent == NULL) {
1159 node_name = g_strdup(fi->hfinfo->abbrev);
1162 node_name = g_strconcat(fi_parent->hfinfo->abbrev, "_", fi->hfinfo->abbrev, NULL);
1165 attr_instances = (GSList *) g_hash_table_lookup(attr_table, node_name);
1166 // First time we encounter this attr
1167 if (attr_instances == NULL) {
1168 attr_instances = g_slist_append(attr_instances, current_node);
1169 *attr_list = g_slist_prepend(*attr_list, attr_instances);
1172 attr_instances = g_slist_append(attr_instances, current_node);
1175 // Update instance list for this attr in hash table
1176 g_hash_table_insert(attr_table, node_name, attr_instances);
1178 /* Field, recurse through children*/
1179 if (fi->hfinfo->type != FT_PROTOCOL && current_node->first_child != NULL) {
1180 if (pdata->filter != NULL) {
1181 if (ek_check_protocolfilter(pdata->filter, fi->hfinfo->abbrev)) {
1182 gchar **_filter = NULL;
1183 /* Remove protocol filter for children, if children should be included */
1184 if ((pdata->filter_flags&PF_INCLUDE_CHILDREN) == PF_INCLUDE_CHILDREN) {
1185 _filter = pdata->filter;
1186 pdata->filter = NULL;
1189 ek_fill_attr(current_node, attr_list, attr_table, pdata);
1191 /* Put protocol filter back */
1192 if ((pdata->filter_flags&PF_INCLUDE_CHILDREN) == PF_INCLUDE_CHILDREN) {
1193 pdata->filter = _filter;
1197 // Don't traverse children if filtered out
1201 ek_fill_attr(current_node, attr_list, attr_table, pdata);
1205 // Will descend into object at another point
1208 current_node = current_node->next;
1213 ek_write_name(proto_node *pnode, gchar* suffix, write_json_data* pdata)
1215 field_info *fi = PNODE_FINFO(pnode);
1216 field_info *fi_parent = PNODE_FINFO(pnode->parent);
1219 if (fi_parent != NULL) {
1220 str = g_strdup_printf("%s_%s%s", fi_parent->hfinfo->abbrev, fi->hfinfo->abbrev, suffix ? suffix : "");
1221 json_dumper_set_member_name(pdata->dumper, str);
1223 str = g_strdup_printf("%s%s", fi->hfinfo->abbrev, suffix ? suffix : "");
1224 json_dumper_set_member_name(pdata->dumper, str);
1230 ek_write_hex(field_info *fi, write_json_data *pdata)
1232 if (fi->hfinfo->bitmask!=0) {
1233 switch (fi->value.ftype->ftype) {
1238 json_dumper_value_anyf(pdata->dumper, "%X", (guint) fvalue_get_sinteger(&fi->value));
1245 json_dumper_value_anyf(pdata->dumper, "%X", fvalue_get_uinteger(&fi->value));
1251 json_dumper_value_anyf(pdata->dumper, "%" G_GINT64_MODIFIER "X", fvalue_get_sinteger64(&fi->value));
1258 json_dumper_value_anyf(pdata->dumper, "%" G_GINT64_MODIFIER "X", fvalue_get_uinteger64(&fi->value));
1261 g_assert_not_reached();
1265 json_write_field_hex_value(pdata, fi);
1270 ek_write_field_value(field_info *fi, write_json_data* pdata)
1272 gchar label_str[ITEM_LABEL_LENGTH];
1273 char *dfilter_string;
1276 if (fi->hfinfo->id == hf_text_only && fi->rep) {
1277 json_dumper_value_string(pdata->dumper, fi->rep->representation);
1280 /* show, value, and unmaskedvalue attributes */
1281 if (fi->hfinfo->type == FT_PROTOCOL) {
1283 json_dumper_value_string(pdata->dumper, fi->rep->representation);
1286 proto_item_fill_label(fi, label_str);
1287 json_dumper_value_string(pdata->dumper, label_str);
1290 else if (fi->hfinfo->type != FT_NONE) {
1291 dfilter_string = fvalue_to_string_repr(NULL, &fi->value, FTREPR_DISPLAY, fi->hfinfo->display);
1292 if (dfilter_string != NULL) {
1293 json_dumper_value_string(pdata->dumper, dfilter_string);
1295 wmem_free(NULL, dfilter_string);
1301 ek_write_attr_hex(GSList *attr_instances, write_json_data *pdata)
1303 GSList *current_node = attr_instances;
1304 proto_node *pnode = (proto_node *) current_node->data;
1305 field_info *fi = NULL;
1308 ek_write_name(pnode, "_raw", pdata);
1310 if (g_slist_length(attr_instances) > 1) {
1311 json_dumper_begin_array(pdata->dumper);
1315 while (current_node != NULL) {
1316 pnode = (proto_node *) current_node->data;
1317 fi = PNODE_FINFO(pnode);
1319 ek_write_hex(fi, pdata);
1321 current_node = current_node->next;
1324 if (g_slist_length(attr_instances) > 1) {
1325 json_dumper_end_array(pdata->dumper);
1330 ek_write_attr(GSList *attr_instances, write_json_data *pdata)
1332 GSList *current_node = attr_instances;
1333 proto_node *pnode = (proto_node *) current_node->data;
1334 field_info *fi = PNODE_FINFO(pnode);
1337 if (pdata->print_hex && fi && fi->length > 0 && fi->hfinfo->id != hf_text_only) {
1338 ek_write_attr_hex(attr_instances, pdata);
1342 ek_write_name(pnode, NULL, pdata);
1344 if (g_slist_length(attr_instances) > 1) {
1345 json_dumper_begin_array(pdata->dumper);
1348 while (current_node != NULL) {
1349 pnode = (proto_node *) current_node->data;
1350 fi = PNODE_FINFO(pnode);
1353 if (fi->hfinfo->type != FT_PROTOCOL) {
1354 if (pdata->filter != NULL
1355 && !ek_check_protocolfilter(pdata->filter, fi->hfinfo->abbrev)) {
1357 /* print dummy field */
1358 json_dumper_set_member_name(pdata->dumper, "filtered");
1359 json_dumper_value_string(pdata->dumper, fi->hfinfo->abbrev);
1362 ek_write_field_value(fi, pdata);
1367 json_dumper_begin_object(pdata->dumper);
1369 if (pdata->filter != NULL) {
1370 if (ek_check_protocolfilter(pdata->filter, fi->hfinfo->abbrev)) {
1371 gchar **_filter = NULL;
1372 /* Remove protocol filter for children, if children should be included */
1373 if ((pdata->filter_flags&PF_INCLUDE_CHILDREN) == PF_INCLUDE_CHILDREN) {
1374 _filter = pdata->filter;
1375 pdata->filter = NULL;
1378 proto_tree_write_node_ek(pnode, pdata);
1380 /* Put protocol filter back */
1381 if ((pdata->filter_flags&PF_INCLUDE_CHILDREN) == PF_INCLUDE_CHILDREN) {
1382 pdata->filter = _filter;
1385 /* print dummy field */
1386 json_dumper_set_member_name(pdata->dumper, "filtered");
1387 json_dumper_value_string(pdata->dumper, fi->hfinfo->abbrev);
1391 proto_tree_write_node_ek(pnode, pdata);
1394 json_dumper_end_object(pdata->dumper);
1397 current_node = current_node->next;
1400 if (g_slist_length(attr_instances) > 1) {
1401 json_dumper_end_array(pdata->dumper);
1405 /* Write out a tree's data, and any child nodes, as JSON for EK */
1407 proto_tree_write_node_ek(proto_node *node, write_json_data *pdata)
1409 GSList *attr_list = NULL;
1410 GHashTable *attr_table = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL);
1412 ek_fill_attr(node, &attr_list, attr_table, pdata);
1414 g_hash_table_destroy(attr_table);
1417 GSList *current_attr = g_slist_reverse(attr_list);
1418 while (current_attr != NULL) {
1419 GSList *attr_instances = (GSList *) current_attr->data;
1421 ek_write_attr(attr_instances, pdata);
1423 current_attr = current_attr->next;
1426 g_slist_free_full(attr_list, (GDestroyNotify) g_slist_free);
1429 /* Print info for a 'geninfo' pseudo-protocol. This is required by
1430 * the PDML spec. The information is contained in Wireshark's 'frame' protocol,
1431 * but we produce a 'geninfo' protocol in the PDML to conform to spec.
1432 * The 'frame' protocol follows the 'geninfo' protocol in the PDML. */
1434 print_pdml_geninfo(epan_dissect_t *edt, FILE *fh)
1436 guint32 num, len, caplen;
1437 GPtrArray *finfo_array;
1438 field_info *frame_finfo;
1441 /* Get frame protocol's finfo. */
1442 finfo_array = proto_find_first_finfo(edt->tree, proto_frame);
1443 if (g_ptr_array_len(finfo_array) < 1) {
1446 frame_finfo = (field_info *)finfo_array->pdata[0];
1447 g_ptr_array_free(finfo_array, TRUE);
1449 /* frame.number, packet_info.num */
1452 /* frame.frame_len, packet_info.frame_data->pkt_len */
1453 len = edt->pi.fd->pkt_len;
1455 /* frame.cap_len --> packet_info.frame_data->cap_len */
1456 caplen = edt->pi.fd->cap_len;
1458 /* Print geninfo start */
1460 " <proto name=\"geninfo\" pos=\"0\" showname=\"General information\" size=\"%d\">\n",
1461 frame_finfo->length);
1463 /* Print geninfo.num */
1465 " <field name=\"num\" pos=\"0\" show=\"%u\" showname=\"Number\" value=\"%x\" size=\"%d\"/>\n",
1466 num, num, frame_finfo->length);
1468 /* Print geninfo.len */
1470 " <field name=\"len\" pos=\"0\" show=\"%u\" showname=\"Frame Length\" value=\"%x\" size=\"%d\"/>\n",
1471 len, len, frame_finfo->length);
1473 /* Print geninfo.caplen */
1475 " <field name=\"caplen\" pos=\"0\" show=\"%u\" showname=\"Captured Length\" value=\"%x\" size=\"%d\"/>\n",
1476 caplen, caplen, frame_finfo->length);
1478 tmp = abs_time_to_str(NULL, &edt->pi.abs_ts, ABSOLUTE_TIME_LOCAL, TRUE);
1480 /* Print geninfo.timestamp */
1482 " <field name=\"timestamp\" pos=\"0\" show=\"%s\" showname=\"Captured Time\" value=\"%d.%09d\" size=\"%d\"/>\n",
1483 tmp, (int)edt->pi.abs_ts.secs, edt->pi.abs_ts.nsecs, frame_finfo->length);
1485 wmem_free(NULL, tmp);
1487 /* Print geninfo end */
1493 write_pdml_finale(FILE *fh)
1495 fputs("</pdml>\n", fh);
1499 write_psml_preamble(column_info *cinfo, FILE *fh)
1503 fprintf(fh, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
1504 fprintf(fh, "<psml version=\"" PSML_VERSION "\" creator=\"%s/%s\">\n", PACKAGE, VERSION);
1505 fprintf(fh, "<structure>\n");
1507 for (i = 0; i < cinfo->num_cols; i++) {
1508 if (!get_column_visible(i)) continue;
1509 fprintf(fh, "<section>");
1510 print_escaped_xml(fh, cinfo->columns[i].col_title);
1511 fprintf(fh, "</section>\n");
1514 fprintf(fh, "</structure>\n\n");
1518 write_psml_columns(epan_dissect_t *edt, FILE *fh, gboolean use_color)
1521 const color_filter_t *cfp = edt->pi.fd->color_filter;
1523 if (use_color && (cfp != NULL)) {
1524 fprintf(fh, "<packet foreground='#%06x' background='#%06x'>\n",
1525 color_t_to_rgb(&cfp->fg_color),
1526 color_t_to_rgb(&cfp->bg_color));
1529 fprintf(fh, "<packet>\n");
1532 for (i = 0; i < edt->pi.cinfo->num_cols; i++) {
1533 if (!get_column_visible(i)) continue;
1534 fprintf(fh, "<section>");
1535 print_escaped_xml(fh, edt->pi.cinfo->columns[i].col_data);
1536 fprintf(fh, "</section>\n");
1539 fprintf(fh, "</packet>\n\n");
1543 write_psml_finale(FILE *fh)
1545 fputs("</psml>\n", fh);
1548 static gchar *csv_massage_str(const gchar *source, const gchar *exceptions)
1553 /* In general, our output for any field can contain Unicode characters,
1554 so g_strescape (which escapes any non-ASCII) is the wrong thing to do.
1555 Unfortunately glib doesn't appear to provide g_unicode_strescape()... */
1556 csv_str = g_strescape(source, exceptions);
1558 /* Locate the UTF-8 right arrow character and replace it by an ASCII equivalent */
1559 while ( (tmp_str = strstr(tmp_str, UTF8_RIGHTWARDS_ARROW)) != NULL ) {
1565 while ( (tmp_str = strstr(tmp_str, "\\\"")) != NULL )
1570 static void csv_write_str(const char *str, char sep, FILE *fh)
1574 /* Do not escape the UTF-8 right arrow character */
1575 csv_str = csv_massage_str(str, UTF8_RIGHTWARDS_ARROW);
1576 fprintf(fh, "\"%s\"%c", csv_str, sep);
1581 write_csv_column_titles(column_info *cinfo, FILE *fh)
1585 for (i = 0; i < cinfo->num_cols - 1; i++) {
1586 if (!get_column_visible(i)) continue;
1587 csv_write_str(cinfo->columns[i].col_title, ',', fh);
1589 csv_write_str(cinfo->columns[i].col_title, '\n', fh);
1593 write_csv_columns(epan_dissect_t *edt, FILE *fh)
1597 for (i = 0; i < edt->pi.cinfo->num_cols - 1; i++) {
1598 if (!get_column_visible(i)) continue;
1599 csv_write_str(edt->pi.cinfo->columns[i].col_data, ',', fh);
1601 csv_write_str(edt->pi.cinfo->columns[i].col_data, '\n', fh);
1605 write_carrays_hex_data(guint32 num, FILE *fh, epan_dissect_t *edt)
1607 guint32 i = 0, src_num = 0;
1614 struct data_source *src;
1616 for (src_le = edt->pi.data_src; src_le != NULL; src_le = src_le->next) {
1617 memset(ascii, 0, sizeof(ascii));
1618 src = (struct data_source *)src_le->data;
1619 tvb = get_data_source_tvb(src);
1620 length = tvb_captured_length(tvb);
1624 cp = tvb_get_ptr(tvb, 0, length);
1626 name = get_data_source_name(src);
1628 fprintf(fh, "/* %s */\n", name);
1629 wmem_free(NULL, name);
1632 fprintf(fh, "static const unsigned char pkt%u_%u[%u] = {\n",
1633 num, src_num, length);
1635 fprintf(fh, "static const unsigned char pkt%u[%u] = {\n",
1640 for (i = 0; i < length; i++) {
1641 fprintf(fh, "0x%02x", *(cp + i));
1642 ascii[i % 8] = g_ascii_isprint(*(cp + i)) ? *(cp + i) : '.';
1644 if (i == (length - 1)) {
1649 for ( j = 0; j < 8 - rem; j++ )
1652 fprintf(fh, " /* %s */\n};\n\n", ascii);
1656 if (!((i + 1) % 8)) {
1657 fprintf(fh, ", /* %s */\n", ascii);
1658 memset(ascii, 0, sizeof(ascii));
1668 * Find the data source for a specified field, and return a pointer
1669 * to the data in it. Returns NULL if the data is out of bounds.
1671 /* XXX: What am I missing ?
1672 * Why bother searching for fi->ds_tvb for the matching tvb
1673 * in the data_source list ?
1674 * IOW: Why not just use fi->ds_tvb for the arg to tvb_get_ptr() ?
1677 static const guint8 *
1678 get_field_data(GSList *src_list, field_info *fi)
1682 gint length, tvbuff_length;
1683 struct data_source *src;
1685 for (src_le = src_list; src_le != NULL; src_le = src_le->next) {
1686 src = (struct data_source *)src_le->data;
1687 src_tvb = get_data_source_tvb(src);
1688 if (fi->ds_tvb == src_tvb) {
1692 * XXX - a field can have a length that runs past
1693 * the end of the tvbuff. Ideally, that should
1694 * be fixed when adding an item to the protocol
1695 * tree, but checking the length when doing
1696 * that could be expensive. Until we fix that,
1697 * we'll do the check here.
1699 tvbuff_length = tvb_captured_length_remaining(src_tvb,
1701 if (tvbuff_length < 0) {
1704 length = fi->length;
1705 if (length > tvbuff_length)
1706 length = tvbuff_length;
1707 return tvb_get_ptr(src_tvb, fi->start, length);
1710 g_assert_not_reached();
1711 return NULL; /* not found */
1714 /* Print a string, escaping out certain characters that need to
1715 * escaped out for XML. */
1717 print_escaped_xml(FILE *fh, const char *unescaped_string)
1722 if (fh == NULL || unescaped_string == NULL) {
1726 for (p = unescaped_string; *p != '\0'; p++) {
1738 fputs(""", fh);
1741 fputs("'", fh);
1744 if (g_ascii_isprint(*p))
1747 g_snprintf(temp_str, sizeof(temp_str), "\\x%x", (guint8)*p);
1748 fputs(temp_str, fh);
1755 print_escaped_csv(FILE *fh, const char *unescaped_string)
1759 if (fh == NULL || unescaped_string == NULL) {
1763 for (p = unescaped_string; *p != '\0'; p++) {
1787 pdml_write_field_hex_value(write_pdml_data *pdata, field_info *fi)
1795 if (fi->length > tvb_captured_length_remaining(fi->ds_tvb, fi->start)) {
1796 fprintf(pdata->fh, "field length invalid!");
1800 /* Find the data for this field. */
1801 pd = get_field_data(pdata->src_list, fi);
1804 /* Print a simple hex dump */
1805 for (i = 0 ; i < fi->length; i++) {
1806 fprintf(pdata->fh, "%02x", pd[i]);
1812 json_write_field_hex_value(write_json_data *pdata, field_info *fi)
1819 if (fi->length > tvb_captured_length_remaining(fi->ds_tvb, fi->start)) {
1820 json_dumper_value_string(pdata->dumper, "field length invalid!");
1824 /* Find the data for this field. */
1825 pd = get_field_data(pdata->src_list, fi);
1829 guint len = fi->length * 2 + 1;
1830 gchar* str = (gchar*)g_malloc0(len);
1831 static const char hex[] = "0123456789abcdef";
1832 /* Print a simple hex dump */
1833 for (i = 0; i < fi->length; i++) {
1835 str[2 * i] = hex[c >> 4];
1836 str[2 * i + 1] = hex[c & 0xf];
1838 str[2 * fi->length] = '\0';
1839 json_dumper_value_string(pdata->dumper, str);
1842 json_dumper_value_string(pdata->dumper, "");
1847 print_hex_data(print_stream_t *stream, epan_dissect_t *edt)
1849 gboolean multiple_sources;
1855 struct data_source *src;
1858 * Set "multiple_sources" iff this frame has more than one
1859 * data source; if it does, we need to print the name of
1860 * the data source before printing the data from the
1863 multiple_sources = (edt->pi.data_src->next != NULL);
1865 for (src_le = edt->pi.data_src; src_le != NULL;
1866 src_le = src_le->next) {
1867 src = (struct data_source *)src_le->data;
1868 tvb = get_data_source_tvb(src);
1869 if (multiple_sources) {
1870 name = get_data_source_name(src);
1871 line = g_strdup_printf("%s:", name);
1872 wmem_free(NULL, name);
1873 print_line(stream, 0, line);
1876 length = tvb_captured_length(tvb);
1879 cp = tvb_get_ptr(tvb, 0, length);
1880 if (!print_hex_data_buffer(stream, cp, length,
1881 (packet_char_enc)edt->pi.fd->encoding))
1888 * This routine is based on a routine created by Dan Lasley
1889 * <DLASLEY@PROMUS.com>.
1891 * It was modified for Wireshark by Gilbert Ramirez and others.
1894 #define MAX_OFFSET_LEN 8 /* max length of hex offset of bytes */
1895 #define BYTES_PER_LINE 16 /* max byte values printed on a line */
1896 #define HEX_DUMP_LEN (BYTES_PER_LINE*3)
1897 /* max number of characters hex dump takes -
1898 2 digits plus trailing blank */
1899 #define DATA_DUMP_LEN (HEX_DUMP_LEN + 2 + BYTES_PER_LINE)
1900 /* number of characters those bytes take;
1901 3 characters per byte of hex dump,
1902 2 blanks separating hex from ASCII,
1903 1 character per byte of ASCII dump */
1904 #define MAX_LINE_LEN (MAX_OFFSET_LEN + 2 + DATA_DUMP_LEN)
1905 /* number of characters per line;
1906 offset, 2 blanks separating offset
1907 from data dump, data dump */
1910 print_hex_data_buffer(print_stream_t *stream, const guchar *cp,
1911 guint length, packet_char_enc encoding)
1913 register unsigned int ad, i, j, k, l;
1915 gchar line[MAX_LINE_LEN + 1];
1916 unsigned int use_digits;
1918 static gchar binhex[16] = {
1919 '0', '1', '2', '3', '4', '5', '6', '7',
1920 '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
1923 * How many of the leading digits of the offset will we supply?
1924 * We always supply at least 4 digits, but if the maximum offset
1925 * won't fit in 4 digits, we use as many digits as will be needed.
1927 if (((length - 1) & 0xF0000000) != 0)
1928 use_digits = 8; /* need all 8 digits */
1929 else if (((length - 1) & 0x0F000000) != 0)
1930 use_digits = 7; /* need 7 digits */
1931 else if (((length - 1) & 0x00F00000) != 0)
1932 use_digits = 6; /* need 6 digits */
1933 else if (((length - 1) & 0x000F0000) != 0)
1934 use_digits = 5; /* need 5 digits */
1936 use_digits = 4; /* we'll supply 4 digits */
1942 while (i < length) {
1943 if ((i & 15) == 0) {
1945 * Start of a new line.
1951 c = (ad >> (l*4)) & 0xF;
1952 line[j++] = binhex[c];
1956 memset(line+j, ' ', DATA_DUMP_LEN);
1959 * Offset in line of ASCII dump.
1961 k = j + HEX_DUMP_LEN + 2;
1964 line[j++] = binhex[c>>4];
1965 line[j++] = binhex[c&0xf];
1967 if (encoding == PACKET_CHAR_ENC_CHAR_EBCDIC) {
1968 c = EBCDIC_to_ASCII1(c);
1970 line[k++] = ((c >= ' ') && (c < 0x7f)) ? c : '.';
1972 if (((i & 15) == 0) || (i == length)) {
1974 * We'll be starting a new line, or
1975 * we're finished printing this buffer;
1976 * dump out the line we've constructed,
1977 * and advance the offset.
1980 if (!print_line(stream, 0, line))
1988 gsize output_fields_num_fields(output_fields_t* fields)
1992 if (NULL == fields->fields) {
1995 return fields->fields->len;
1999 void output_fields_free(output_fields_t* fields)
2003 if (NULL != fields->fields) {
2006 if (NULL != fields->field_indicies) {
2007 /* Keys are stored in fields->fields, values are
2010 g_hash_table_destroy(fields->field_indicies);
2013 if (NULL != fields->field_values) {
2014 g_free(fields->field_values);
2017 for(i = 0; i < fields->fields->len; ++i) {
2018 gchar* field = (gchar *)g_ptr_array_index(fields->fields,i);
2021 g_ptr_array_free(fields->fields, TRUE);
2027 #define COLUMN_FIELD_FILTER "_ws.col."
2029 void output_fields_add(output_fields_t *fields, const gchar *field)
2037 if (NULL == fields->fields) {
2038 fields->fields = g_ptr_array_new();
2041 field_copy = g_strdup(field);
2043 g_ptr_array_add(fields->fields, field_copy);
2045 /* See if we have a column as a field entry */
2046 if (!strncmp(field, COLUMN_FIELD_FILTER, strlen(COLUMN_FIELD_FILTER)))
2047 fields->includes_col_fields = TRUE;
2052 output_field_check(void *data, void *user_data)
2054 gchar *field = (gchar *)data;
2055 GSList **invalid_fields = (GSList **)user_data;
2057 if (!strncmp(field, COLUMN_FIELD_FILTER, strlen(COLUMN_FIELD_FILTER)))
2060 if (!proto_registrar_get_byname(field)) {
2061 *invalid_fields = g_slist_prepend(*invalid_fields, field);
2067 output_fields_valid(output_fields_t *fields)
2069 GSList *invalid_fields = NULL;
2070 if (fields->fields == NULL) {
2074 g_ptr_array_foreach(fields->fields, output_field_check, &invalid_fields);
2076 return invalid_fields;
2079 gboolean output_fields_set_option(output_fields_t *info, gchar *option)
2081 const gchar *option_name;
2082 const gchar *option_value;
2087 if ('\0' == *option) {
2088 return FALSE; /* this happens if we're called from tshark -E '' */
2090 option_name = strtok(option, "=");
2094 option_value = option + strlen(option_name) + 1;
2095 if (*option_value == '\0') {
2099 if (0 == strcmp(option_name, "header")) {
2100 switch (*option_value) {
2102 info->print_header = FALSE;
2105 info->print_header = TRUE;
2112 else if (0 == strcmp(option_name, "separator")) {
2113 switch (*option_value) {
2115 switch (*++option_value) {
2117 info->separator = '\t';
2120 info->separator = ' ';
2123 info->separator = '\\';
2127 info->separator = *option_value;
2132 else if (0 == strcmp(option_name, "occurrence")) {
2133 switch (*option_value) {
2137 info->occurrence = *option_value;
2144 else if (0 == strcmp(option_name, "aggregator")) {
2145 switch (*option_value) {
2147 switch (*++option_value) {
2149 info->aggregator = ' ';
2152 info->aggregator = '\\';
2156 info->aggregator = *option_value;
2161 else if (0 == strcmp(option_name, "quote")) {
2162 switch (*option_value) {
2178 else if (0 == strcmp(option_name, "bom")) {
2179 switch (*option_value) {
2181 info->print_bom = FALSE;
2184 info->print_bom = TRUE;
2195 void output_fields_list_options(FILE *fh)
2197 fprintf(fh, "TShark: The available options for field output \"E\" are:\n");
2198 fputs("bom=y|n Prepend output with the UTF-8 BOM (def: N: no)\n", fh);
2199 fputs("header=y|n Print field abbreviations as first line of output (def: N: no)\n", fh);
2200 fputs("separator=/t|/s|<character> Set the separator to use;\n \"/t\" = tab, \"/s\" = space (def: /t: tab)\n", fh);
2201 fputs("occurrence=f|l|a Select the occurrence of a field to use;\n \"f\" = first, \"l\" = last, \"a\" = all (def: a: all)\n", fh);
2202 fputs("aggregator=,|/s|<character> Set the aggregator to use;\n \",\" = comma, \"/s\" = space (def: ,: comma)\n", fh);
2203 fputs("quote=d|s|n Print either d: double-quotes, s: single quotes or \n n: no quotes around field values (def: n: none)\n", fh);
2206 gboolean output_fields_has_cols(output_fields_t* fields)
2209 return fields->includes_col_fields;
2212 void write_fields_preamble(output_fields_t* fields, FILE *fh)
2218 g_assert(fields->fields);
2220 if (fields->print_bom) {
2221 fputs(UTF8_BOM, fh);
2225 if (!fields->print_header) {
2229 for(i = 0; i < fields->fields->len; ++i) {
2230 const gchar* field = (const gchar *)g_ptr_array_index(fields->fields,i);
2232 fputc(fields->separator, fh);
2239 static void format_field_values(output_fields_t* fields, gpointer field_index, gchar* value)
2247 /* Unwrap change made to disambiguiate zero / null */
2248 indx = GPOINTER_TO_UINT(field_index) - 1;
2250 if (fields->field_values[indx] == NULL) {
2251 fields->field_values[indx] = g_ptr_array_new();
2254 /* Essentially: fieldvalues[indx] is a 'GPtrArray *' with each array entry */
2255 /* pointing to a string which is (part of) the final output string. */
2257 fv_p = fields->field_values[indx];
2259 switch (fields->occurrence) {
2261 /* print the value of only the first occurrence of the field */
2262 if (g_ptr_array_len(fv_p) != 0) {
2264 * This isn't the first occurrence, so the value won't be used;
2272 /* print the value of only the last occurrence of the field */
2273 if (g_ptr_array_len(fv_p) != 0) {
2275 * This isn't the first occurrence, so there's already a
2276 * value in the array, which won't be used; free the
2277 * first (only) element in the array, and then remove
2278 * it - this value will replace it.
2280 g_free(g_ptr_array_index(fv_p, 0));
2281 g_ptr_array_set_size(fv_p, 0);
2285 /* print the value of all accurrences of the field */
2286 if (g_ptr_array_len(fv_p) != 0) {
2288 * This isn't the first occurrence. so add the "aggregator"
2289 * character as a separator between the previous element
2292 g_ptr_array_add(fv_p, (gpointer)g_strdup_printf("%c", fields->aggregator));
2296 g_assert_not_reached();
2300 g_ptr_array_add(fv_p, (gpointer)value);
2303 static void proto_tree_get_node_field_values(proto_node *node, gpointer data)
2305 write_field_data_t *call_data;
2307 gpointer field_index;
2309 call_data = (write_field_data_t *)data;
2310 fi = PNODE_FINFO(node);
2312 /* dissection with an invisible proto tree? */
2315 field_index = g_hash_table_lookup(call_data->fields->field_indicies, fi->hfinfo->abbrev);
2316 if (NULL != field_index) {
2317 format_field_values(call_data->fields, field_index,
2318 get_node_field_value(fi, call_data->edt) /* g_ alloc'd string */
2323 if (node->first_child != NULL) {
2324 proto_tree_children_foreach(node, proto_tree_get_node_field_values,
2329 static void write_specified_fields(fields_format format, output_fields_t *fields, epan_dissect_t *edt, column_info *cinfo, FILE *fh, json_dumper *dumper)
2334 gpointer field_index;
2336 write_field_data_t data;
2339 g_assert(fields->fields);
2343 data.fields = fields;
2346 if (NULL == fields->field_indicies) {
2347 /* Prepare a lookup table from string abbreviation for field to its index. */
2348 fields->field_indicies = g_hash_table_new(g_str_hash, g_str_equal);
2351 while (i < fields->fields->len) {
2352 gchar *field = (gchar *)g_ptr_array_index(fields->fields, i);
2353 /* Store field indicies +1 so that zero is not a valid value,
2354 * and can be distinguished from NULL as a pointer.
2357 g_hash_table_insert(fields->field_indicies, field, GUINT_TO_POINTER(i));
2361 /* Array buffer to store values for this packet */
2362 /* Allocate an array for the 'GPtrarray *' the first time */
2363 /* ths function is invoked for a file; */
2364 /* Any and all 'GPtrArray *' are freed (after use) each */
2365 /* time (each packet) this function is invoked for a flle. */
2366 /* XXX: ToDo: use packet-scope'd memory & (if/when implemented) wmem ptr_array */
2367 if (NULL == fields->field_values)
2368 fields->field_values = g_new0(GPtrArray*, fields->fields->len); /* free'd in output_fields_free() */
2370 proto_tree_children_foreach(edt->tree, proto_tree_get_node_field_values,
2373 /* Add columns to fields */
2374 if (fields->includes_col_fields) {
2375 for (col = 0; col < cinfo->num_cols; col++) {
2376 if (!get_column_visible(col)) continue;
2377 /* Prepend COLUMN_FIELD_FILTER as the field name */
2378 col_name = g_strdup_printf("%s%s", COLUMN_FIELD_FILTER, cinfo->columns[col].col_title);
2379 field_index = g_hash_table_lookup(fields->field_indicies, col_name);
2382 if (NULL != field_index) {
2383 format_field_values(fields, field_index, g_strdup(cinfo->columns[col].col_data));
2390 for(i = 0; i < fields->fields->len; ++i) {
2392 fputc(fields->separator, fh);
2394 if (NULL != fields->field_values[i]) {
2398 fv_p = fields->field_values[i];
2399 if (fields->quote != '\0') {
2400 fputc(fields->quote, fh);
2403 /* Output the array of (partial) field values */
2404 for (j = 0; j < g_ptr_array_len(fv_p); j++ ) {
2405 str = (gchar *)g_ptr_array_index(fv_p, j);
2406 print_escaped_csv(fh, str);
2409 if (fields->quote != '\0') {
2410 fputc(fields->quote, fh);
2412 g_ptr_array_free(fv_p, TRUE); /* get ready for the next packet */
2413 fields->field_values[i] = NULL;
2418 for(i = 0; i < fields->fields->len; ++i) {
2419 gchar *field = (gchar *)g_ptr_array_index(fields->fields, i);
2421 if (NULL != fields->field_values[i]) {
2425 fv_p = fields->field_values[i];
2427 /* Output the array of (partial) field values */
2428 for (j = 0; j < (g_ptr_array_len(fv_p)); j+=2 ) {
2429 str = (gchar *)g_ptr_array_index(fv_p, j);
2431 fprintf(fh, " <field name=\"%s\" value=", field);
2433 print_escaped_xml(fh, str);
2434 fputs("\"/>\n", fh);
2437 g_ptr_array_free(fv_p, TRUE); /* get ready for the next packet */
2438 fields->field_values[i] = NULL;
2443 json_dumper_begin_object(dumper);
2444 for(i = 0; i < fields->fields->len; ++i) {
2445 gchar *field = (gchar *)g_ptr_array_index(fields->fields, i);
2447 if (NULL != fields->field_values[i]) {
2451 fv_p = fields->field_values[i];
2453 json_dumper_set_member_name(dumper, field);
2454 json_dumper_begin_array(dumper);
2456 /* Output the array of (partial) field values */
2457 for (j = 0; j < (g_ptr_array_len(fv_p)); j += 2) {
2458 str = (gchar *) g_ptr_array_index(fv_p, j);
2459 json_dumper_value_string(dumper, str);
2463 json_dumper_end_array(dumper);
2465 g_ptr_array_free(fv_p, TRUE); /* get ready for the next packet */
2466 fields->field_values[i] = NULL;
2469 json_dumper_end_object(dumper);
2472 for(i = 0; i < fields->fields->len; ++i) {
2473 gchar *field = (gchar *)g_ptr_array_index(fields->fields, i);
2475 if (NULL != fields->field_values[i]) {
2479 fv_p = fields->field_values[i];
2481 json_dumper_set_member_name(dumper, field);
2482 json_dumper_begin_array(dumper);
2484 /* Output the array of (partial) field values */
2485 for (j = 0; j < (g_ptr_array_len(fv_p)); j += 2) {
2486 str = (gchar *)g_ptr_array_index(fv_p, j);
2487 json_dumper_value_string(dumper, str);
2491 json_dumper_end_array(dumper);
2493 g_ptr_array_free(fv_p, TRUE); /* get ready for the next packet */
2494 fields->field_values[i] = NULL;
2500 fprintf(stderr, "Unknown fields format %d\n", format);
2501 g_assert_not_reached();
2506 void write_fields_finale(output_fields_t* fields _U_ , FILE *fh _U_)
2511 /* Returns an g_malloced string */
2512 gchar* get_node_field_value(field_info* fi, epan_dissect_t* edt)
2514 if (fi->hfinfo->id == hf_text_only) {
2518 return g_strdup(fi->rep->representation);
2521 return get_field_hex_value(edt->pi.data_src, fi);
2524 else if (fi->hfinfo->id == proto_data) {
2525 /* Uninterpreted data, i.e., the "Data" protocol, is
2526 * printed as a field instead of a protocol. */
2527 return get_field_hex_value(edt->pi.data_src, fi);
2530 /* Normal protocols and fields */
2531 gchar *dfilter_string;
2533 switch (fi->hfinfo->type)
2536 /* Print out the full details for the protocol. */
2538 return g_strdup(fi->rep->representation);
2540 /* Just print out the protocol abbreviation */
2541 return g_strdup(fi->hfinfo->abbrev);
2544 /* Return "1" so that the presence of a field of type
2545 * FT_NONE can be checked when using -T fields */
2546 return g_strdup("1");
2551 guint8 *bytes = (guint8 *)fvalue_get(&fi->value);
2553 dfilter_string = (gchar *)wmem_alloc(NULL, 3*fvalue_length(&fi->value));
2554 switch (fi->hfinfo->display) {
2556 ret = bytes_to_hexstr_punct(dfilter_string, bytes, fvalue_length(&fi->value), '.');
2559 ret = bytes_to_hexstr_punct(dfilter_string, bytes, fvalue_length(&fi->value), '-');
2562 ret = bytes_to_hexstr_punct(dfilter_string, bytes, fvalue_length(&fi->value), ':');
2565 ret = bytes_to_hexstr_punct(dfilter_string, bytes, fvalue_length(&fi->value), ' ');
2569 ret = bytes_to_hexstr(dfilter_string, bytes, fvalue_length(&fi->value));
2573 ret = g_strdup(dfilter_string);
2574 wmem_free(NULL, dfilter_string);
2576 if (fi->hfinfo->display & BASE_ALLOW_ZERO) {
2577 ret = g_strdup("<none>");
2579 ret = g_strdup("<MISSING>");
2586 dfilter_string = fvalue_to_string_repr(NULL, &fi->value, FTREPR_DISPLAY, fi->hfinfo->display);
2587 if (dfilter_string != NULL) {
2588 gchar* ret = g_strdup(dfilter_string);
2589 wmem_free(NULL, dfilter_string);
2592 return get_field_hex_value(edt->pi.data_src, fi);
2599 get_field_hex_value(GSList *src_list, field_info *fi)
2606 if (fi->length > tvb_captured_length_remaining(fi->ds_tvb, fi->start)) {
2607 return g_strdup("field length invalid!");
2610 /* Find the data for this field. */
2611 pd = get_field_data(src_list, fi);
2618 const int chars_per_byte = 2;
2620 len = chars_per_byte * fi->length;
2621 buffer = (gchar *)g_malloc(sizeof(gchar)*(len + 1));
2622 buffer[len] = '\0'; /* Ensure NULL termination in bad cases */
2624 /* Print a simple hex dump */
2625 for (i = 0 ; i < fi->length; i++) {
2626 g_snprintf(p, chars_per_byte+1, "%02x", pd[i]);
2627 p += chars_per_byte;
2635 output_fields_t* output_fields_new(void)
2637 output_fields_t* fields = g_new(output_fields_t, 1);
2638 fields->print_bom = FALSE;
2639 fields->print_header = FALSE;
2640 fields->separator = '\t';
2641 fields->occurrence = 'a';
2642 fields->aggregator = ',';
2643 fields->fields = NULL; /*Do lazy initialisation */
2644 fields->field_indicies = NULL;
2645 fields->field_values = NULL;
2646 fields->quote ='\0';
2647 fields->includes_col_fields = FALSE;
2652 * Editor modelines - http://www.wireshark.org/tools/modelines.html
2657 * indent-tabs-mode: nil
2660 * vi: set shiftwidth=4 tabstop=8 expandtab:
2661 * :indentSize=4:tabSize=8:noTabs=true: